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.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label46_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:13:45,415 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:13:45,417 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:13:45,433 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:13:45,433 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:13:45,434 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:13:45,436 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:13:45,438 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:13:45,439 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:13:45,440 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:13:45,441 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:13:45,441 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:13:45,442 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:13:45,443 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:13:45,444 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:13:45,445 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:13:45,446 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:13:45,448 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:13:45,450 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:13:45,452 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:13:45,453 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:13:45,454 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:13:45,457 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 21:13:45,457 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 21:13:45,457 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 21:13:45,464 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 21:13:45,465 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 21:13:45,466 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 21:13:45,467 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 21:13:45,468 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 21:13:45,468 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 21:13:45,472 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 21:13:45,472 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 21:13:45,472 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 21:13:45,474 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 21:13:45,476 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 21:13:45,476 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 21:13:45,501 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:13:45,501 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:13:45,502 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:13:45,503 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:13:45,503 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:13:45,503 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:13:45,503 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:13:45,504 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:13:45,504 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:13:45,504 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:13:45,504 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:13:45,504 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:13:45,505 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:13:45,505 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:13:45,506 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:13:45,506 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:13:45,506 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:13:45,506 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:13:45,506 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:13:45,506 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:13:45,507 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:13:45,507 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:13:45,507 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:13:45,507 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:13:45,507 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:13:45,508 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:13:45,508 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:13:45,508 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:13:45,508 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:13:45,509 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:13:45,509 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:13:45,509 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:13:45,509 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:13:45,509 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:13:45,556 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:13:45,572 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:13:45,577 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:13:45,579 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:13:45,579 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:13:45,580 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label46_true-unreach-call.c [2018-10-24 21:13:45,656 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1ab28827c/15600c501b7c409897f767ca285d6b58/FLAG06417712b [2018-10-24 21:13:46,290 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:13:46,291 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label46_true-unreach-call.c [2018-10-24 21:13:46,307 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1ab28827c/15600c501b7c409897f767ca285d6b58/FLAG06417712b [2018-10-24 21:13:46,328 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/1ab28827c/15600c501b7c409897f767ca285d6b58 [2018-10-24 21:13:46,342 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:13:46,344 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:13:46,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:13:46,345 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:13:46,350 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:13:46,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:13:46" (1/1) ... [2018-10-24 21:13:46,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@128929bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:13:46, skipping insertion in model container [2018-10-24 21:13:46,355 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:13:46" (1/1) ... [2018-10-24 21:13:46,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:13:46,450 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:13:47,018 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:13:47,024 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:13:47,228 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:13:47,247 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:13:47,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:13:47 WrapperNode [2018-10-24 21:13:47,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:13:47,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:13:47,249 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:13:47,250 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:13:47,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:13:47" (1/1) ... [2018-10-24 21:13:47,290 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:13:47" (1/1) ... [2018-10-24 21:13:47,576 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:13:47,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:13:47,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:13:47,577 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:13:47,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:13:47" (1/1) ... [2018-10-24 21:13:47,588 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:13:47" (1/1) ... [2018-10-24 21:13:47,599 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:13:47" (1/1) ... [2018-10-24 21:13:47,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:13:47" (1/1) ... [2018-10-24 21:13:47,654 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:13:47" (1/1) ... [2018-10-24 21:13:47,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:13:47" (1/1) ... [2018-10-24 21:13:47,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:13:47" (1/1) ... [2018-10-24 21:13:47,717 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:13:47,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:13:47,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:13:47,718 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:13:47,719 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:13:47" (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 [2018-10-24 21:13:47,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:13:47,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:13:47,784 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:13:47,784 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:13:47,784 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:13:47,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:13:47,785 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:13:47,785 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:13:52,670 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:13:52,671 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:13:52 BoogieIcfgContainer [2018-10-24 21:13:52,672 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:13:52,673 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:13:52,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:13:52,684 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:13:52,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:13:46" (1/3) ... [2018-10-24 21:13:52,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d932586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:13:52, skipping insertion in model container [2018-10-24 21:13:52,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:13:47" (2/3) ... [2018-10-24 21:13:52,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d932586 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:13:52, skipping insertion in model container [2018-10-24 21:13:52,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:13:52" (3/3) ... [2018-10-24 21:13:52,689 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label46_true-unreach-call.c [2018-10-24 21:13:52,702 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:13:52,718 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:13:52,733 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:13:52,775 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:13:52,776 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:13:52,776 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:13:52,776 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:13:52,776 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:13:52,777 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:13:52,777 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:13:52,777 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:13:52,808 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-10-24 21:13:52,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-10-24 21:13:52,819 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:13:52,821 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] [2018-10-24 21:13:52,824 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:13:52,830 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:13:52,830 INFO L82 PathProgramCache]: Analyzing trace with hash 992823241, now seen corresponding path program 1 times [2018-10-24 21:13:52,832 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:13:52,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:13:52,882 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:13:52,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:13:52,883 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:13:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:13:53,426 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:13:53,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:13:53,552 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:13:53,552 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 21:13:53,553 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:13:53,560 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 21:13:53,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 21:13:53,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 21:13:53,584 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2018-10-24 21:13:55,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:13:55,663 INFO L93 Difference]: Finished difference Result 782 states and 1372 transitions. [2018-10-24 21:13:55,664 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 21:13:55,666 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2018-10-24 21:13:55,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:13:55,686 INFO L225 Difference]: With dead ends: 782 [2018-10-24 21:13:55,686 INFO L226 Difference]: Without dead ends: 487 [2018-10-24 21:13:55,696 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 21:13:55,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2018-10-24 21:13:55,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 482. [2018-10-24 21:13:55,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2018-10-24 21:13:55,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 843 transitions. [2018-10-24 21:13:55,792 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 843 transitions. Word has length 69 [2018-10-24 21:13:55,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:13:55,793 INFO L481 AbstractCegarLoop]: Abstraction has 482 states and 843 transitions. [2018-10-24 21:13:55,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 21:13:55,794 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 843 transitions. [2018-10-24 21:13:55,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-10-24 21:13:55,803 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:13:55,804 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 21:13:55,804 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:13:55,804 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:13:55,805 INFO L82 PathProgramCache]: Analyzing trace with hash 742048031, now seen corresponding path program 1 times [2018-10-24 21:13:55,805 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:13:55,806 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:13:55,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:13:55,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:13:55,807 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:13:55,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:13:56,365 WARN L179 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-24 21:13:56,541 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:13:56,542 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:13:56,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-24 21:13:56,542 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:13:56,544 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 21:13:56,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 21:13:56,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 21:13:56,545 INFO L87 Difference]: Start difference. First operand 482 states and 843 transitions. Second operand 7 states. [2018-10-24 21:14:03,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:14:03,602 INFO L93 Difference]: Finished difference Result 1760 states and 3239 transitions. [2018-10-24 21:14:03,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-24 21:14:03,611 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 144 [2018-10-24 21:14:03,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:14:03,624 INFO L225 Difference]: With dead ends: 1760 [2018-10-24 21:14:03,624 INFO L226 Difference]: Without dead ends: 1284 [2018-10-24 21:14:03,631 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-10-24 21:14:03,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1284 states. [2018-10-24 21:14:03,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1284 to 1037. [2018-10-24 21:14:03,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1037 states. [2018-10-24 21:14:03,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1685 transitions. [2018-10-24 21:14:03,703 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1685 transitions. Word has length 144 [2018-10-24 21:14:03,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:14:03,703 INFO L481 AbstractCegarLoop]: Abstraction has 1037 states and 1685 transitions. [2018-10-24 21:14:03,703 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 21:14:03,703 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1685 transitions. [2018-10-24 21:14:03,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-10-24 21:14:03,712 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:14:03,712 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:14:03,713 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:14:03,713 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:14:03,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1965616979, now seen corresponding path program 1 times [2018-10-24 21:14:03,713 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:14:03,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:14:03,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:14:03,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:14:03,716 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:14:03,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:14:04,098 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:14:04,254 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 124 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 21:14:04,255 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:14:04,255 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:14:04,256 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 218 with the following transitions: [2018-10-24 21:14:04,258 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [453], [455], [458], [466], [474], [482], [490], [495], [499], [503], [506], [507], [511], [514], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 21:14:04,336 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:14:04,336 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:14:06,114 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:14:06,379 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:14:06,380 INFO L272 AbstractInterpreter]: Visited 80 different actions 80 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-10-24 21:14:06,392 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:14:06,392 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:14:08,901 INFO L232 lantSequenceWeakener]: Weakened 209 states. On average, predicates are now at 74% of their original sizes. [2018-10-24 21:14:08,902 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:14:09,412 INFO L413 sIntCurrentIteration]: We have 216 unified AI predicates [2018-10-24 21:14:09,413 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:14:09,415 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:14:09,415 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 21:14:09,416 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:14:09,416 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 21:14:09,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 21:14:09,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 21:14:09,420 INFO L87 Difference]: Start difference. First operand 1037 states and 1685 transitions. Second operand 7 states. [2018-10-24 21:15:01,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:15:01,750 INFO L93 Difference]: Finished difference Result 2260 states and 3574 transitions. [2018-10-24 21:15:01,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:15:01,751 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 217 [2018-10-24 21:15:01,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:15:01,758 INFO L225 Difference]: With dead ends: 2260 [2018-10-24 21:15:01,758 INFO L226 Difference]: Without dead ends: 1229 [2018-10-24 21:15:01,762 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 217 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 21:15:01,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1229 states. [2018-10-24 21:15:01,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1229 to 1227. [2018-10-24 21:15:01,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1227 states. [2018-10-24 21:15:01,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1227 states to 1227 states and 1883 transitions. [2018-10-24 21:15:01,802 INFO L78 Accepts]: Start accepts. Automaton has 1227 states and 1883 transitions. Word has length 217 [2018-10-24 21:15:01,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:15:01,802 INFO L481 AbstractCegarLoop]: Abstraction has 1227 states and 1883 transitions. [2018-10-24 21:15:01,802 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 21:15:01,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1227 states and 1883 transitions. [2018-10-24 21:15:01,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2018-10-24 21:15:01,808 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:15:01,808 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 21:15:01,809 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:15:01,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:15:01,809 INFO L82 PathProgramCache]: Analyzing trace with hash -645920121, now seen corresponding path program 1 times [2018-10-24 21:15:01,809 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:15:01,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:15:01,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:15:01,811 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:15:01,811 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:15:01,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:15:02,517 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 0 proven. 127 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-10-24 21:15:02,518 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:15:02,518 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:15:02,518 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 262 with the following transitions: [2018-10-24 21:15:02,519 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [453], [455], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [514], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-24 21:15:02,536 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:15:02,537 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:15:05,732 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:15:18,012 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:15:18,012 INFO L272 AbstractInterpreter]: Visited 125 different actions 362 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-24 21:15:18,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:15:18,021 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:15:21,537 INFO L232 lantSequenceWeakener]: Weakened 129 states. On average, predicates are now at 74.97% of their original sizes. [2018-10-24 21:15:21,538 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:15:32,146 INFO L413 sIntCurrentIteration]: We have 260 unified AI predicates [2018-10-24 21:15:32,147 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:15:32,147 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:15:32,147 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2018-10-24 21:15:32,147 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:15:32,148 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-24 21:15:32,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-24 21:15:32,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2018-10-24 21:15:32,149 INFO L87 Difference]: Start difference. First operand 1227 states and 1883 transitions. Second operand 16 states. Received shutdown request... [2018-10-24 21:17:49,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-24 21:17:49,770 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 21:17:49,775 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 21:17:49,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:17:49 BoogieIcfgContainer [2018-10-24 21:17:49,776 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 21:17:49,777 INFO L168 Benchmark]: Toolchain (without parser) took 243433.74 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 3.5 GB in the end (delta: -2.1 GB). Peak memory consumption was 582.0 MB. Max. memory is 7.1 GB. [2018-10-24 21:17:49,778 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 21:17:49,779 INFO L168 Benchmark]: CACSL2BoogieTranslator took 903.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-10-24 21:17:49,780 INFO L168 Benchmark]: Boogie Procedure Inliner took 326.64 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -829.9 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. [2018-10-24 21:17:49,781 INFO L168 Benchmark]: Boogie Preprocessor took 141.54 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 21:17:49,781 INFO L168 Benchmark]: RCFGBuilder took 4953.65 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 192.4 MB). Peak memory consumption was 192.4 MB. Max. memory is 7.1 GB. [2018-10-24 21:17:49,782 INFO L168 Benchmark]: TraceAbstraction took 237103.09 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.5 GB in the end (delta: -1.5 GB). Peak memory consumption was 418.4 MB. Max. memory is 7.1 GB. [2018-10-24 21:17:49,788 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 903.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 326.64 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 737.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -829.9 MB). Peak memory consumption was 24.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 141.54 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 4953.65 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 192.4 MB). Peak memory consumption was 192.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 237103.09 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.0 GB in the beginning and 3.5 GB in the end (delta: -1.5 GB). Peak memory consumption was 418.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 192]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 192). Cancelled while BasicCegarLoop was constructing difference of abstraction (1227states) and FLOYD_HOARE automaton (currently 17 states, 16 states before enhancement),while ReachableStatesComputation was computing reachable states (731 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 237.0s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 199.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 678 SDtfs, 2697 SDslu, 822 SDs, 0 SdLazy, 5268 SolverSat, 814 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 96.6s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 502 GetRequests, 462 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 15.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1227occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 17.6s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9957649726557297 AbsIntWeakeningRatio, 0.11764705882352941 AbsIntAvgWeakeningVarsNumRemoved, 638.9873949579832 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 254 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 691 NumberOfCodeBlocks, 691 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 687 ConstructedInterpolants, 0 QuantifiedInterpolants, 577034 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 263/458 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown