java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label38_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 07:17:44,450 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 07:17:44,452 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 07:17:44,464 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 07:17:44,465 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 07:17:44,466 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 07:17:44,467 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 07:17:44,469 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 07:17:44,471 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 07:17:44,472 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 07:17:44,472 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 07:17:44,473 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 07:17:44,474 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 07:17:44,475 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 07:17:44,476 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 07:17:44,477 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 07:17:44,478 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 07:17:44,480 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 07:17:44,482 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 07:17:44,483 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 07:17:44,485 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 07:17:44,486 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 07:17:44,489 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 07:17:44,489 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 07:17:44,489 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 07:17:44,490 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 07:17:44,491 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 07:17:44,492 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 07:17:44,493 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 07:17:44,494 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 07:17:44,494 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 07:17:44,495 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 07:17:44,495 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 07:17:44,496 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 07:17:44,497 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 07:17:44,498 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 07:17:44,498 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-11-07 07:17:44,514 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 07:17:44,514 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 07:17:44,515 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 07:17:44,515 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 07:17:44,515 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 07:17:44,516 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 07:17:44,516 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 07:17:44,516 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 07:17:44,516 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 07:17:44,516 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 07:17:44,517 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 07:17:44,517 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 07:17:44,517 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 07:17:44,517 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 07:17:44,518 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 07:17:44,518 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 07:17:44,518 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 07:17:44,519 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 07:17:44,519 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 07:17:44,519 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 07:17:44,519 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 07:17:44,519 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 07:17:44,520 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 07:17:44,520 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 07:17:44,520 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 07:17:44,520 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 07:17:44,520 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 07:17:44,521 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 07:17:44,521 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 07:17:44,521 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 07:17:44,521 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 07:17:44,522 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 07:17:44,522 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 07:17:44,522 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 07:17:44,522 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 07:17:44,522 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 07:17:44,565 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 07:17:44,578 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 07:17:44,582 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 07:17:44,584 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 07:17:44,584 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 07:17:44,585 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label38_true-unreach-call.c [2018-11-07 07:17:44,647 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb6c1e0c1/106c1b0799134d18a04094c7a4cd1999/FLAGa1af57eee [2018-11-07 07:17:45,265 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 07:17:45,266 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label38_true-unreach-call.c [2018-11-07 07:17:45,289 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb6c1e0c1/106c1b0799134d18a04094c7a4cd1999/FLAGa1af57eee [2018-11-07 07:17:45,308 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb6c1e0c1/106c1b0799134d18a04094c7a4cd1999 [2018-11-07 07:17:45,320 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 07:17:45,323 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 07:17:45,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 07:17:45,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 07:17:45,333 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 07:17:45,334 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:17:45" (1/1) ... [2018-11-07 07:17:45,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f02a909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:17:45, skipping insertion in model container [2018-11-07 07:17:45,337 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:17:45" (1/1) ... [2018-11-07 07:17:45,348 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 07:17:45,436 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 07:17:46,209 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 07:17:46,216 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 07:17:46,496 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 07:17:46,520 INFO L193 MainTranslator]: Completed translation [2018-11-07 07:17:46,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:17:46 WrapperNode [2018-11-07 07:17:46,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 07:17:46,523 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 07:17:46,523 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 07:17:46,523 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 07:17:46,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:17:46" (1/1) ... [2018-11-07 07:17:46,718 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:17:46" (1/1) ... [2018-11-07 07:17:46,732 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 07:17:46,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 07:17:46,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 07:17:46,733 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 07:17:46,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:17:46" (1/1) ... [2018-11-07 07:17:46,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:17:46" (1/1) ... [2018-11-07 07:17:46,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:17:46" (1/1) ... [2018-11-07 07:17:46,752 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:17:46" (1/1) ... [2018-11-07 07:17:46,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:17:46" (1/1) ... [2018-11-07 07:17:46,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:17:46" (1/1) ... [2018-11-07 07:17:46,875 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:17:46" (1/1) ... [2018-11-07 07:17:46,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 07:17:46,891 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 07:17:46,891 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 07:17:46,892 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 07:17:46,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:17:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 07:17:46,966 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 07:17:46,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 07:17:46,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 07:17:46,968 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 07:17:46,968 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 07:17:46,968 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 07:17:46,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 07:17:46,969 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 07:17:46,969 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 07:17:51,647 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 07:17:51,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:17:51 BoogieIcfgContainer [2018-11-07 07:17:51,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 07:17:51,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 07:17:51,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 07:17:51,653 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 07:17:51,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:17:45" (1/3) ... [2018-11-07 07:17:51,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@511d44c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:17:51, skipping insertion in model container [2018-11-07 07:17:51,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:17:46" (2/3) ... [2018-11-07 07:17:51,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@511d44c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:17:51, skipping insertion in model container [2018-11-07 07:17:51,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:17:51" (3/3) ... [2018-11-07 07:17:51,658 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label38_true-unreach-call.c [2018-11-07 07:17:51,669 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 07:17:51,685 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 07:17:51,704 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 07:17:51,763 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 07:17:51,763 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 07:17:51,763 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 07:17:51,763 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 07:17:51,763 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 07:17:51,764 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 07:17:51,764 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 07:17:51,764 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 07:17:51,798 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-11-07 07:17:51,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-11-07 07:17:51,820 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 07:17:51,822 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 07:17:51,824 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 07:17:51,831 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:17:51,831 INFO L82 PathProgramCache]: Analyzing trace with hash -274519863, now seen corresponding path program 1 times [2018-11-07 07:17:51,835 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 07:17:51,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:17:51,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:17:51,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:17:51,897 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 07:17:52,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:17:52,865 WARN L179 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 07:17:53,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 07:17:53,092 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 07:17:53,092 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 07:17:53,092 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 07:17:53,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 07:17:53,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 07:17:53,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 07:17:53,118 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 3 states. [2018-11-07 07:17:54,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 07:17:54,972 INFO L93 Difference]: Finished difference Result 848 states and 1491 transitions. [2018-11-07 07:17:54,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 07:17:54,974 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 208 [2018-11-07 07:17:54,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 07:17:54,997 INFO L225 Difference]: With dead ends: 848 [2018-11-07 07:17:54,998 INFO L226 Difference]: Without dead ends: 534 [2018-11-07 07:17:55,006 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 07:17:55,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2018-11-07 07:17:55,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 532. [2018-11-07 07:17:55,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2018-11-07 07:17:55,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 867 transitions. [2018-11-07 07:17:55,097 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 867 transitions. Word has length 208 [2018-11-07 07:17:55,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 07:17:55,099 INFO L480 AbstractCegarLoop]: Abstraction has 532 states and 867 transitions. [2018-11-07 07:17:55,099 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 07:17:55,099 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 867 transitions. [2018-11-07 07:17:55,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-11-07 07:17:55,109 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 07:17:55,109 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 07:17:55,110 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 07:17:55,110 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:17:55,110 INFO L82 PathProgramCache]: Analyzing trace with hash 583518797, now seen corresponding path program 1 times [2018-11-07 07:17:55,111 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 07:17:55,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:17:55,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:17:55,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:17:55,112 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 07:17:55,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:17:55,574 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 07:17:55,574 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 07:17:55,574 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 07:17:55,575 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 07:17:55,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 07:17:55,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 07:17:55,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 07:17:55,579 INFO L87 Difference]: Start difference. First operand 532 states and 867 transitions. Second operand 3 states. [2018-11-07 07:17:57,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 07:17:57,597 INFO L93 Difference]: Finished difference Result 1494 states and 2513 transitions. [2018-11-07 07:17:57,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 07:17:57,597 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 221 [2018-11-07 07:17:57,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 07:17:57,610 INFO L225 Difference]: With dead ends: 1494 [2018-11-07 07:17:57,610 INFO L226 Difference]: Without dead ends: 968 [2018-11-07 07:17:57,615 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 07:17:57,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2018-11-07 07:17:57,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 952. [2018-11-07 07:17:57,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 952 states. [2018-11-07 07:17:57,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 952 states to 952 states and 1529 transitions. [2018-11-07 07:17:57,672 INFO L78 Accepts]: Start accepts. Automaton has 952 states and 1529 transitions. Word has length 221 [2018-11-07 07:17:57,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 07:17:57,673 INFO L480 AbstractCegarLoop]: Abstraction has 952 states and 1529 transitions. [2018-11-07 07:17:57,673 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 07:17:57,673 INFO L276 IsEmpty]: Start isEmpty. Operand 952 states and 1529 transitions. [2018-11-07 07:17:57,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2018-11-07 07:17:57,680 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 07:17:57,681 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 07:17:57,681 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 07:17:57,681 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:17:57,681 INFO L82 PathProgramCache]: Analyzing trace with hash 1022344301, now seen corresponding path program 1 times [2018-11-07 07:17:57,682 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 07:17:57,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:17:57,683 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:17:57,683 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:17:57,683 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 07:17:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:17:58,214 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 07:17:58,214 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 07:17:58,214 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 07:17:58,216 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 233 with the following transitions: [2018-11-07 07:17:58,218 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [20], [21], [25], [28], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1041], [1049], [1057], [1065], [1073], [1081], [1089], [1097], [1105], [1113], [1121], [1125], [1127], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 07:17:58,288 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 07:17:58,288 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 07:17:59,532 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 07:17:59,535 INFO L272 AbstractInterpreter]: Visited 209 different actions 209 times. Never merged. Never widened. Never found a fixpoint. Largest state had 88 variables. [2018-11-07 07:17:59,567 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:17:59,567 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 07:18:00,705 INFO L227 lantSequenceWeakener]: Weakened 223 states. On average, predicates are now at 75% of their original sizes. [2018-11-07 07:18:00,706 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 07:18:01,441 INFO L415 sIntCurrentIteration]: We unified 231 AI predicates to 231 [2018-11-07 07:18:01,442 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 07:18:01,443 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 07:18:01,443 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 17 [2018-11-07 07:18:01,443 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 07:18:01,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-07 07:18:01,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-07 07:18:01,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-11-07 07:18:01,445 INFO L87 Difference]: Start difference. First operand 952 states and 1529 transitions. Second operand 13 states. [2018-11-07 07:18:15,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 07:18:15,151 INFO L93 Difference]: Finished difference Result 2108 states and 3387 transitions. [2018-11-07 07:18:15,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 07:18:15,152 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 232 [2018-11-07 07:18:15,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 07:18:15,160 INFO L225 Difference]: With dead ends: 2108 [2018-11-07 07:18:15,160 INFO L226 Difference]: Without dead ends: 1162 [2018-11-07 07:18:15,163 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 232 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2018-11-07 07:18:15,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2018-11-07 07:18:15,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1160. [2018-11-07 07:18:15,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1160 states. [2018-11-07 07:18:15,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1160 states to 1160 states and 1747 transitions. [2018-11-07 07:18:15,204 INFO L78 Accepts]: Start accepts. Automaton has 1160 states and 1747 transitions. Word has length 232 [2018-11-07 07:18:15,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 07:18:15,205 INFO L480 AbstractCegarLoop]: Abstraction has 1160 states and 1747 transitions. [2018-11-07 07:18:15,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-07 07:18:15,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1160 states and 1747 transitions. [2018-11-07 07:18:15,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-11-07 07:18:15,212 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 07:18:15,212 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 07:18:15,213 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 07:18:15,213 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:18:15,213 INFO L82 PathProgramCache]: Analyzing trace with hash -1482214398, now seen corresponding path program 1 times [2018-11-07 07:18:15,213 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 07:18:15,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:18:15,215 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:18:15,215 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:18:15,215 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 07:18:15,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:18:15,629 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 07:18:15,630 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 07:18:15,630 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 07:18:15,630 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 242 with the following transitions: [2018-11-07 07:18:15,631 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [20], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [64], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1041], [1049], [1057], [1065], [1073], [1081], [1089], [1097], [1105], [1113], [1121], [1125], [1127], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 07:18:15,652 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 07:18:15,652 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 07:18:16,865 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 07:18:16,866 INFO L272 AbstractInterpreter]: Visited 212 different actions 423 times. Merged at 7 different actions 10 times. Never widened. Found 2 fixpoints after 2 different actions. Largest state had 88 variables. [2018-11-07 07:18:16,876 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:18:16,876 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 07:18:17,611 INFO L227 lantSequenceWeakener]: Weakened 238 states. On average, predicates are now at 77.92% of their original sizes. [2018-11-07 07:18:17,612 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 07:18:18,244 INFO L415 sIntCurrentIteration]: We unified 240 AI predicates to 240 [2018-11-07 07:18:18,245 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 07:18:18,245 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 07:18:18,245 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [6] total 20 [2018-11-07 07:18:18,245 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 07:18:18,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-11-07 07:18:18,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-11-07 07:18:18,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2018-11-07 07:18:18,247 INFO L87 Difference]: Start difference. First operand 1160 states and 1747 transitions. Second operand 16 states. [2018-11-07 07:18:58,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 07:18:58,455 INFO L93 Difference]: Finished difference Result 3837 states and 6238 transitions. [2018-11-07 07:18:58,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-07 07:18:58,455 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 241 [2018-11-07 07:18:58,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 07:18:58,471 INFO L225 Difference]: With dead ends: 3837 [2018-11-07 07:18:58,471 INFO L226 Difference]: Without dead ends: 2891 [2018-11-07 07:18:58,478 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 246 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=121, Invalid=341, Unknown=0, NotChecked=0, Total=462 [2018-11-07 07:18:58,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2891 states. [2018-11-07 07:18:58,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2891 to 2883. [2018-11-07 07:18:58,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2883 states. [2018-11-07 07:18:58,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2883 states to 2883 states and 4274 transitions. [2018-11-07 07:18:58,559 INFO L78 Accepts]: Start accepts. Automaton has 2883 states and 4274 transitions. Word has length 241 [2018-11-07 07:18:58,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 07:18:58,560 INFO L480 AbstractCegarLoop]: Abstraction has 2883 states and 4274 transitions. [2018-11-07 07:18:58,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-11-07 07:18:58,561 INFO L276 IsEmpty]: Start isEmpty. Operand 2883 states and 4274 transitions. [2018-11-07 07:18:58,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2018-11-07 07:18:58,574 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 07:18:58,574 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 07:18:58,575 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 07:18:58,575 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:18:58,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1272402825, now seen corresponding path program 1 times [2018-11-07 07:18:58,575 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 07:18:58,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:18:58,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:18:58,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:18:58,577 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 07:18:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:18:59,064 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 51 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 07:18:59,064 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 07:18:59,065 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 07:18:59,065 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 256 with the following transitions: [2018-11-07 07:18:59,066 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [123], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1041], [1049], [1057], [1065], [1073], [1081], [1089], [1097], [1105], [1113], [1121], [1125], [1127], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 07:18:59,073 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 07:18:59,073 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 07:18:59,951 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 07:18:59,951 INFO L272 AbstractInterpreter]: Visited 212 different actions 418 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-11-07 07:18:59,958 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:18:59,958 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 07:19:00,476 INFO L227 lantSequenceWeakener]: Weakened 252 states. On average, predicates are now at 75.03% of their original sizes. [2018-11-07 07:19:00,477 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 07:19:00,815 INFO L415 sIntCurrentIteration]: We unified 254 AI predicates to 254 [2018-11-07 07:19:00,815 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 07:19:00,815 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 07:19:00,815 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [6] total 24 [2018-11-07 07:19:00,815 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 07:19:00,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-07 07:19:00,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-07 07:19:00,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2018-11-07 07:19:00,817 INFO L87 Difference]: Start difference. First operand 2883 states and 4274 transitions. Second operand 20 states. [2018-11-07 07:19:25,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 07:19:25,447 INFO L93 Difference]: Finished difference Result 4883 states and 7404 transitions. [2018-11-07 07:19:25,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-07 07:19:25,448 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 255 [2018-11-07 07:19:25,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 07:19:25,464 INFO L225 Difference]: With dead ends: 4883 [2018-11-07 07:19:25,464 INFO L226 Difference]: Without dead ends: 3097 [2018-11-07 07:19:25,471 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 263 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=181, Invalid=631, Unknown=0, NotChecked=0, Total=812 [2018-11-07 07:19:25,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3097 states. [2018-11-07 07:19:25,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3097 to 3094. [2018-11-07 07:19:25,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3094 states. [2018-11-07 07:19:25,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3094 states to 3094 states and 4501 transitions. [2018-11-07 07:19:25,548 INFO L78 Accepts]: Start accepts. Automaton has 3094 states and 4501 transitions. Word has length 255 [2018-11-07 07:19:25,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 07:19:25,549 INFO L480 AbstractCegarLoop]: Abstraction has 3094 states and 4501 transitions. [2018-11-07 07:19:25,549 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-07 07:19:25,549 INFO L276 IsEmpty]: Start isEmpty. Operand 3094 states and 4501 transitions. [2018-11-07 07:19:25,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2018-11-07 07:19:25,563 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 07:19:25,563 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 07:19:25,564 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 07:19:25,564 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:19:25,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1790727279, now seen corresponding path program 1 times [2018-11-07 07:19:25,564 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 07:19:25,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:19:25,565 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:19:25,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:19:25,566 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 07:19:25,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:19:25,863 WARN L179 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 07:19:26,233 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 77 proven. 9 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2018-11-07 07:19:26,233 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 07:19:26,234 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 07:19:26,234 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 269 with the following transitions: [2018-11-07 07:19:26,234 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [16], [17], [21], [24], [25], [28], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [68], [73], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1041], [1049], [1057], [1065], [1073], [1081], [1089], [1097], [1105], [1113], [1121], [1125], [1127], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 07:19:26,242 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 07:19:26,242 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 07:19:27,570 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 07:19:27,571 INFO L272 AbstractInterpreter]: Visited 215 different actions 639 times. Merged at 7 different actions 18 times. Never widened. Found 3 fixpoints after 3 different actions. Largest state had 88 variables. [2018-11-07 07:19:27,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:19:27,579 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 07:19:27,579 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 07:19:27,579 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 07:19:27,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:19:27,590 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 07:19:27,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:19:27,877 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 07:19:28,265 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 62 proven. 4 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2018-11-07 07:19:28,266 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 07:19:28,558 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 62 proven. 20 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-11-07 07:19:28,579 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 07:19:28,579 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-11-07 07:19:28,580 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 07:19:28,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-07 07:19:28,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-07 07:19:28,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-11-07 07:19:28,581 INFO L87 Difference]: Start difference. First operand 3094 states and 4501 transitions. Second operand 9 states. [2018-11-07 07:19:35,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 07:19:35,040 INFO L93 Difference]: Finished difference Result 12166 states and 20452 transitions. [2018-11-07 07:19:35,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-11-07 07:19:35,041 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 268 [2018-11-07 07:19:35,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 07:19:35,104 INFO L225 Difference]: With dead ends: 12166 [2018-11-07 07:19:35,104 INFO L226 Difference]: Without dead ends: 9497 [2018-11-07 07:19:35,124 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 579 GetRequests, 545 SyntacticMatches, 7 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=195, Invalid=617, Unknown=0, NotChecked=0, Total=812 [2018-11-07 07:19:35,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9497 states. [2018-11-07 07:19:35,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9497 to 9230. [2018-11-07 07:19:35,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9230 states. [2018-11-07 07:19:35,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9230 states to 9230 states and 13372 transitions. [2018-11-07 07:19:35,430 INFO L78 Accepts]: Start accepts. Automaton has 9230 states and 13372 transitions. Word has length 268 [2018-11-07 07:19:35,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 07:19:35,430 INFO L480 AbstractCegarLoop]: Abstraction has 9230 states and 13372 transitions. [2018-11-07 07:19:35,430 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-07 07:19:35,431 INFO L276 IsEmpty]: Start isEmpty. Operand 9230 states and 13372 transitions. [2018-11-07 07:19:35,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2018-11-07 07:19:35,466 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 07:19:35,466 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 07:19:35,466 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 07:19:35,467 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:19:35,467 INFO L82 PathProgramCache]: Analyzing trace with hash 464520961, now seen corresponding path program 1 times [2018-11-07 07:19:35,467 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 07:19:35,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:19:35,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:19:35,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:19:35,469 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 07:19:35,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:19:36,057 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 98 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-07 07:19:36,058 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 07:19:36,058 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 07:19:36,058 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 282 with the following transitions: [2018-11-07 07:19:36,059 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [68], [73], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [127], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1041], [1049], [1057], [1065], [1073], [1081], [1089], [1097], [1105], [1113], [1121], [1125], [1127], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 07:19:36,066 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 07:19:36,066 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 07:19:37,718 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 07:19:37,718 INFO L272 AbstractInterpreter]: Visited 214 different actions 639 times. Merged at 7 different actions 21 times. Never widened. Found 4 fixpoints after 3 different actions. Largest state had 88 variables. [2018-11-07 07:19:37,725 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:19:37,725 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 07:19:37,725 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 07:19:37,725 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 07:19:37,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:19:37,734 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 07:19:37,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:19:37,933 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 07:19:38,160 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2018-11-07 07:19:38,160 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 07:19:38,434 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2018-11-07 07:19:38,456 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-07 07:19:38,456 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2018-11-07 07:19:38,456 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 07:19:38,457 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 07:19:38,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 07:19:38,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-07 07:19:38,457 INFO L87 Difference]: Start difference. First operand 9230 states and 13372 transitions. Second operand 3 states. [2018-11-07 07:19:39,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 07:19:39,729 INFO L93 Difference]: Finished difference Result 18039 states and 26357 transitions. [2018-11-07 07:19:39,732 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 07:19:39,732 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 281 [2018-11-07 07:19:39,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 07:19:39,785 INFO L225 Difference]: With dead ends: 18039 [2018-11-07 07:19:39,785 INFO L226 Difference]: Without dead ends: 9234 [2018-11-07 07:19:39,819 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 567 GetRequests, 560 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-07 07:19:39,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9234 states. [2018-11-07 07:19:40,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9234 to 9230. [2018-11-07 07:19:40,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9230 states. [2018-11-07 07:19:40,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9230 states to 9230 states and 12533 transitions. [2018-11-07 07:19:40,051 INFO L78 Accepts]: Start accepts. Automaton has 9230 states and 12533 transitions. Word has length 281 [2018-11-07 07:19:40,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 07:19:40,052 INFO L480 AbstractCegarLoop]: Abstraction has 9230 states and 12533 transitions. [2018-11-07 07:19:40,052 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 07:19:40,052 INFO L276 IsEmpty]: Start isEmpty. Operand 9230 states and 12533 transitions. [2018-11-07 07:19:40,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2018-11-07 07:19:40,079 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 07:19:40,080 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 07:19:40,080 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 07:19:40,080 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:19:40,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1534123996, now seen corresponding path program 1 times [2018-11-07 07:19:40,081 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 07:19:40,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:19:40,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:19:40,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:19:40,082 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 07:19:40,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:19:40,675 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-07 07:19:40,676 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 07:19:40,676 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 07:19:40,676 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 301 with the following transitions: [2018-11-07 07:19:40,677 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [127], [128], [132], [136], [140], [144], [148], [151], [156], [158], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1041], [1049], [1057], [1065], [1073], [1081], [1089], [1097], [1105], [1113], [1121], [1125], [1127], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 07:19:40,684 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 07:19:40,685 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 07:19:42,039 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 07:19:42,040 INFO L272 AbstractInterpreter]: Visited 214 different actions 639 times. Merged at 7 different actions 21 times. Never widened. Found 4 fixpoints after 3 different actions. Largest state had 88 variables. [2018-11-07 07:19:42,044 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:19:42,044 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 07:19:42,044 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 07:19:42,044 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 07:19:42,054 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:19:42,054 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 07:19:42,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:19:42,272 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 07:19:42,383 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-11-07 07:19:42,383 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 07:19:42,815 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-11-07 07:19:42,851 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-07 07:19:42,851 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2018-11-07 07:19:42,851 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 07:19:42,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 07:19:42,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 07:19:42,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-07 07:19:42,856 INFO L87 Difference]: Start difference. First operand 9230 states and 12533 transitions. Second operand 3 states. [2018-11-07 07:19:45,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 07:19:45,018 INFO L93 Difference]: Finished difference Result 22261 states and 30478 transitions. [2018-11-07 07:19:45,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 07:19:45,023 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 300 [2018-11-07 07:19:45,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 07:19:45,075 INFO L225 Difference]: With dead ends: 22261 [2018-11-07 07:19:45,075 INFO L226 Difference]: Without dead ends: 13456 [2018-11-07 07:19:45,110 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 605 GetRequests, 598 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-07 07:19:45,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13456 states. [2018-11-07 07:19:45,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13456 to 13452. [2018-11-07 07:19:45,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13452 states. [2018-11-07 07:19:45,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13452 states to 13452 states and 17802 transitions. [2018-11-07 07:19:45,411 INFO L78 Accepts]: Start accepts. Automaton has 13452 states and 17802 transitions. Word has length 300 [2018-11-07 07:19:45,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 07:19:45,412 INFO L480 AbstractCegarLoop]: Abstraction has 13452 states and 17802 transitions. [2018-11-07 07:19:45,412 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 07:19:45,412 INFO L276 IsEmpty]: Start isEmpty. Operand 13452 states and 17802 transitions. [2018-11-07 07:19:45,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2018-11-07 07:19:45,452 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 07:19:45,452 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 07:19:45,452 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 07:19:45,453 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:19:45,453 INFO L82 PathProgramCache]: Analyzing trace with hash 28905719, now seen corresponding path program 1 times [2018-11-07 07:19:45,453 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 07:19:45,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:19:45,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:19:45,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:19:45,454 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 07:19:45,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:19:46,043 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 87 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 07:19:46,043 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 07:19:46,044 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 07:19:46,044 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 303 with the following transitions: [2018-11-07 07:19:46,044 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [127], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [174], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1041], [1049], [1057], [1065], [1073], [1081], [1089], [1097], [1105], [1113], [1121], [1125], [1127], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 07:19:46,051 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 07:19:46,051 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 07:19:47,538 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 07:19:47,538 INFO L272 AbstractInterpreter]: Visited 214 different actions 857 times. Merged at 8 different actions 36 times. Widened at 1 different actions 1 times. Found 7 fixpoints after 3 different actions. Largest state had 88 variables. [2018-11-07 07:19:47,544 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:19:47,544 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 07:19:47,544 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 07:19:47,544 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 07:19:47,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:19:47,553 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 07:19:47,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:19:47,753 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 07:19:48,092 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-11-07 07:19:48,092 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 07:19:48,393 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-11-07 07:19:48,427 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-07 07:19:48,427 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [13] total 14 [2018-11-07 07:19:48,428 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 07:19:48,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 07:19:48,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 07:19:48,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2018-11-07 07:19:48,430 INFO L87 Difference]: Start difference. First operand 13452 states and 17802 transitions. Second operand 3 states. [2018-11-07 07:19:49,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 07:19:49,997 INFO L93 Difference]: Finished difference Result 38503 states and 52371 transitions. [2018-11-07 07:19:49,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 07:19:49,998 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 302 [2018-11-07 07:19:49,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 07:19:50,093 INFO L225 Difference]: With dead ends: 38503 [2018-11-07 07:19:50,093 INFO L226 Difference]: Without dead ends: 25476 [2018-11-07 07:19:50,136 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 617 GetRequests, 605 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2018-11-07 07:19:50,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25476 states. [2018-11-07 07:19:50,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25476 to 25460. [2018-11-07 07:19:50,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25460 states. [2018-11-07 07:19:50,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25460 states to 25460 states and 33422 transitions. [2018-11-07 07:19:50,693 INFO L78 Accepts]: Start accepts. Automaton has 25460 states and 33422 transitions. Word has length 302 [2018-11-07 07:19:50,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 07:19:50,694 INFO L480 AbstractCegarLoop]: Abstraction has 25460 states and 33422 transitions. [2018-11-07 07:19:50,694 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 07:19:50,694 INFO L276 IsEmpty]: Start isEmpty. Operand 25460 states and 33422 transitions. [2018-11-07 07:19:50,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2018-11-07 07:19:50,765 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 07:19:50,765 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 07:19:50,766 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 07:19:50,766 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:19:50,766 INFO L82 PathProgramCache]: Analyzing trace with hash -977547278, now seen corresponding path program 1 times [2018-11-07 07:19:50,766 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 07:19:50,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:19:50,767 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:19:50,767 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:19:50,767 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 07:19:50,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:19:51,378 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 217 proven. 62 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2018-11-07 07:19:51,378 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 07:19:51,379 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 07:19:51,379 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 380 with the following transitions: [2018-11-07 07:19:51,379 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [68], [71], [75], [76], [79], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [123], [124], [127], [128], [132], [136], [139], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1041], [1049], [1057], [1065], [1073], [1081], [1089], [1097], [1105], [1113], [1121], [1125], [1127], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 07:19:51,387 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 07:19:51,387 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 07:19:53,343 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 07:19:53,343 INFO L272 AbstractInterpreter]: Visited 217 different actions 875 times. Merged at 9 different actions 42 times. Widened at 1 different actions 1 times. Found 11 fixpoints after 4 different actions. Largest state had 88 variables. [2018-11-07 07:19:53,351 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:19:53,351 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 07:19:53,351 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 07:19:53,351 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 07:19:53,360 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:19:53,360 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 07:19:53,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:19:53,633 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 07:19:54,017 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 349 proven. 2 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2018-11-07 07:19:54,017 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 07:19:54,261 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 273 proven. 34 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2018-11-07 07:19:54,282 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 07:19:54,282 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-07 07:19:54,283 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 07:19:54,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-07 07:19:54,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-07 07:19:54,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-11-07 07:19:54,284 INFO L87 Difference]: Start difference. First operand 25460 states and 33422 transitions. Second operand 9 states. [2018-11-07 07:19:58,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 07:19:58,614 INFO L93 Difference]: Finished difference Result 89170 states and 125361 transitions. [2018-11-07 07:19:58,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-07 07:19:58,614 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 379 [2018-11-07 07:19:58,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 07:19:58,982 INFO L225 Difference]: With dead ends: 89170 [2018-11-07 07:19:58,982 INFO L226 Difference]: Without dead ends: 69022 [2018-11-07 07:19:59,069 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 774 GetRequests, 758 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2018-11-07 07:19:59,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69022 states. [2018-11-07 07:20:00,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69022 to 68594. [2018-11-07 07:20:00,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68594 states. [2018-11-07 07:20:00,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68594 states to 68594 states and 91315 transitions. [2018-11-07 07:20:00,679 INFO L78 Accepts]: Start accepts. Automaton has 68594 states and 91315 transitions. Word has length 379 [2018-11-07 07:20:00,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 07:20:00,680 INFO L480 AbstractCegarLoop]: Abstraction has 68594 states and 91315 transitions. [2018-11-07 07:20:00,680 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-07 07:20:00,680 INFO L276 IsEmpty]: Start isEmpty. Operand 68594 states and 91315 transitions. [2018-11-07 07:20:00,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2018-11-07 07:20:00,833 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 07:20:00,833 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 07:20:00,834 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 07:20:00,834 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:20:00,834 INFO L82 PathProgramCache]: Analyzing trace with hash 669448555, now seen corresponding path program 1 times [2018-11-07 07:20:00,834 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 07:20:00,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:20:00,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:20:00,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:20:00,835 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 07:20:00,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:20:01,316 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 242 proven. 32 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-11-07 07:20:01,316 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 07:20:01,316 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 07:20:01,316 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 390 with the following transitions: [2018-11-07 07:20:01,317 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [123], [124], [128], [132], [136], [139], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [460], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1041], [1049], [1057], [1065], [1073], [1081], [1089], [1097], [1105], [1113], [1121], [1125], [1127], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 07:20:01,324 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 07:20:01,324 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 07:20:02,407 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 07:20:02,407 INFO L272 AbstractInterpreter]: Visited 213 different actions 420 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-11-07 07:20:02,445 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:20:02,445 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 07:20:03,368 INFO L227 lantSequenceWeakener]: Weakened 386 states. On average, predicates are now at 73.92% of their original sizes. [2018-11-07 07:20:03,369 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 07:20:03,648 INFO L415 sIntCurrentIteration]: We unified 388 AI predicates to 388 [2018-11-07 07:20:03,648 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 07:20:03,648 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 07:20:03,648 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [6] total 23 [2018-11-07 07:20:03,648 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 07:20:03,649 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-11-07 07:20:03,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-11-07 07:20:03,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2018-11-07 07:20:03,649 INFO L87 Difference]: Start difference. First operand 68594 states and 91315 transitions. Second operand 19 states. [2018-11-07 07:20:28,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 07:20:28,847 INFO L93 Difference]: Finished difference Result 107722 states and 142057 transitions. [2018-11-07 07:20:28,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-07 07:20:28,847 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 389 [2018-11-07 07:20:28,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 07:20:29,115 INFO L225 Difference]: With dead ends: 107722 [2018-11-07 07:20:29,115 INFO L226 Difference]: Without dead ends: 69656 [2018-11-07 07:20:29,212 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 397 GetRequests, 371 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=181, Invalid=575, Unknown=0, NotChecked=0, Total=756 [2018-11-07 07:20:29,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69656 states. [2018-11-07 07:20:30,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69656 to 69645. [2018-11-07 07:20:30,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69645 states. [2018-11-07 07:20:30,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69645 states to 69645 states and 92485 transitions. [2018-11-07 07:20:30,553 INFO L78 Accepts]: Start accepts. Automaton has 69645 states and 92485 transitions. Word has length 389 [2018-11-07 07:20:30,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 07:20:30,554 INFO L480 AbstractCegarLoop]: Abstraction has 69645 states and 92485 transitions. [2018-11-07 07:20:30,554 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-11-07 07:20:30,554 INFO L276 IsEmpty]: Start isEmpty. Operand 69645 states and 92485 transitions. [2018-11-07 07:20:30,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2018-11-07 07:20:30,697 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 07:20:30,697 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 07:20:30,698 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 07:20:30,698 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:20:30,698 INFO L82 PathProgramCache]: Analyzing trace with hash -602241421, now seen corresponding path program 1 times [2018-11-07 07:20:30,698 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 07:20:30,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:20:30,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:20:30,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:20:30,700 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 07:20:30,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:20:31,364 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 232 proven. 26 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2018-11-07 07:20:31,365 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 07:20:31,365 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 07:20:31,365 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 434 with the following transitions: [2018-11-07 07:20:31,366 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [8], [12], [13], [17], [20], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [95], [96], [100], [104], [108], [112], [116], [120], [123], [124], [128], [132], [136], [139], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [436], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1041], [1049], [1057], [1065], [1073], [1081], [1089], [1097], [1105], [1113], [1121], [1125], [1127], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 07:20:31,375 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 07:20:31,375 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 07:20:32,655 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 07:20:32,655 INFO L272 AbstractInterpreter]: Visited 219 different actions 664 times. Merged at 11 different actions 35 times. Widened at 1 different actions 1 times. Found 9 fixpoints after 3 different actions. Largest state had 88 variables. [2018-11-07 07:20:32,661 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:20:32,661 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 07:20:32,661 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 07:20:32,661 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 07:20:32,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:20:32,672 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 07:20:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:20:32,985 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 07:20:33,663 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 363 proven. 4 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2018-11-07 07:20:33,664 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 07:20:33,904 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 293 proven. 66 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2018-11-07 07:20:33,926 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 07:20:33,927 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2018-11-07 07:20:33,927 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 07:20:33,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-07 07:20:33,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-07 07:20:33,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-11-07 07:20:33,929 INFO L87 Difference]: Start difference. First operand 69645 states and 92485 transitions. Second operand 8 states. [2018-11-07 07:20:41,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 07:20:41,703 INFO L93 Difference]: Finished difference Result 228268 states and 335723 transitions. [2018-11-07 07:20:41,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-11-07 07:20:41,704 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 433 [2018-11-07 07:20:41,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 07:20:43,453 INFO L225 Difference]: With dead ends: 228268 [2018-11-07 07:20:43,453 INFO L226 Difference]: Without dead ends: 160099 [2018-11-07 07:20:43,746 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 922 GetRequests, 885 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=249, Invalid=1011, Unknown=0, NotChecked=0, Total=1260 [2018-11-07 07:20:43,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160099 states. [2018-11-07 07:20:47,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160099 to 150193. [2018-11-07 07:20:47,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150193 states. [2018-11-07 07:20:47,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150193 states to 150193 states and 190890 transitions. [2018-11-07 07:20:47,512 INFO L78 Accepts]: Start accepts. Automaton has 150193 states and 190890 transitions. Word has length 433 [2018-11-07 07:20:47,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 07:20:47,513 INFO L480 AbstractCegarLoop]: Abstraction has 150193 states and 190890 transitions. [2018-11-07 07:20:47,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-07 07:20:47,513 INFO L276 IsEmpty]: Start isEmpty. Operand 150193 states and 190890 transitions. [2018-11-07 07:20:47,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2018-11-07 07:20:47,949 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 07:20:47,950 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 07:20:47,950 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 07:20:47,950 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:20:47,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1258345187, now seen corresponding path program 1 times [2018-11-07 07:20:47,951 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 07:20:47,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:20:47,952 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:20:47,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 07:20:47,952 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 07:20:48,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:20:49,241 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 342 proven. 126 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2018-11-07 07:20:49,242 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 07:20:49,242 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 07:20:49,242 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 501 with the following transitions: [2018-11-07 07:20:49,242 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [127], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [213], [216], [220], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [315], [320], [322], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [479], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1025], [1033], [1041], [1049], [1057], [1065], [1073], [1081], [1089], [1097], [1105], [1113], [1121], [1125], [1127], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-11-07 07:20:49,253 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 07:20:49,254 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 07:20:51,073 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 07:20:51,074 INFO L272 AbstractInterpreter]: Visited 219 different actions 871 times. Merged at 8 different actions 36 times. Widened at 1 different actions 1 times. Found 9 fixpoints after 4 different actions. Largest state had 88 variables. [2018-11-07 07:20:51,085 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 07:20:51,085 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 07:20:51,085 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 07:20:51,085 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 07:20:51,095 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 07:20:51,095 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 07:20:51,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 07:20:51,386 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 07:20:51,581 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 388 proven. 2 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2018-11-07 07:20:51,581 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 07:20:52,015 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 342 proven. 126 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2018-11-07 07:20:52,037 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 07:20:52,038 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2018-11-07 07:20:52,038 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 07:20:52,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-07 07:20:52,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-07 07:20:52,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2018-11-07 07:20:52,040 INFO L87 Difference]: Start difference. First operand 150193 states and 190890 transitions. Second operand 10 states. [2018-11-07 07:21:06,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 07:21:06,469 INFO L93 Difference]: Finished difference Result 311713 states and 415855 transitions. [2018-11-07 07:21:06,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2018-11-07 07:21:06,470 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 500 [2018-11-07 07:21:06,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 07:21:06,470 INFO L225 Difference]: With dead ends: 311713 [2018-11-07 07:21:06,470 INFO L226 Difference]: Without dead ends: 0 [2018-11-07 07:21:07,895 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1091 GetRequests, 1034 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 985 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=646, Invalid=2660, Unknown=0, NotChecked=0, Total=3306 [2018-11-07 07:21:07,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-07 07:21:07,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-07 07:21:07,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-07 07:21:07,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-07 07:21:07,900 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 500 [2018-11-07 07:21:07,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 07:21:07,901 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-07 07:21:07,901 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-07 07:21:07,901 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-07 07:21:07,901 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-07 07:21:07,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-07 07:21:13,832 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:13,883 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:13,885 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:13,889 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:13,896 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:13,915 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:13,923 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:13,924 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:13,947 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:13,962 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:13,994 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,007 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,019 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,020 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,028 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,036 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,040 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,050 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,119 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,125 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,126 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,214 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,229 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,236 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,237 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,243 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,245 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,252 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,253 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,268 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,275 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,356 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,364 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,371 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,391 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,399 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,407 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,408 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,410 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,426 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,434 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,435 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,443 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,461 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,485 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,506 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,524 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,562 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,563 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,589 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,601 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,602 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,619 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,629 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,689 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,853 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,853 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,854 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,864 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,874 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,875 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,876 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,900 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,979 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,980 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,991 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:14,992 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,003 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,016 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,028 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,029 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,030 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,065 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,100 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,101 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,125 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,138 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,139 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,164 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,236 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,249 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,284 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,284 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,304 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,344 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,345 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,345 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,364 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,365 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,374 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,375 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,375 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,394 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,395 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,423 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,424 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,425 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,450 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,535 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,536 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,555 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,585 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,587 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,599 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,600 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,612 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,622 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,675 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,685 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,686 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,697 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,706 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,717 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,727 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,761 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,791 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,792 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,803 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,825 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,858 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,860 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,924 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,925 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,937 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,948 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:15,949 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:16,084 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:16,085 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:16,108 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:16,109 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:16,122 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:16,193 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-11-07 07:21:16,230 WARN L250 erpolLogProxyWrapper]: Already inconsistent. Received shutdown request... [2018-11-07 07:21:16,259 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-11-07 07:21:16,260 INFO L168 Benchmark]: Toolchain (without parser) took 210938.22 ms. Allocated memory was 1.5 GB in the beginning and 4.4 GB in the end (delta: 2.8 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.0 GB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2018-11-07 07:21:16,261 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 07:21:16,262 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1198.19 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-11-07 07:21:16,263 INFO L168 Benchmark]: Boogie Procedure Inliner took 209.58 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -874.5 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2018-11-07 07:21:16,264 INFO L168 Benchmark]: Boogie Preprocessor took 158.14 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: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2018-11-07 07:21:16,265 INFO L168 Benchmark]: RCFGBuilder took 4757.21 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 258.9 MB). Peak memory consumption was 258.9 MB. Max. memory is 7.1 GB. [2018-11-07 07:21:16,266 INFO L168 Benchmark]: TraceAbstraction took 204609.52 ms. Allocated memory was 2.3 GB in the beginning and 4.4 GB in the end (delta: 2.1 GB). Free memory was 1.9 GB in the beginning and 2.5 GB in the end (delta: -520.9 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-11-07 07:21:16,276 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 1198.19 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 209.58 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 750.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -874.5 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 158.14 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: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4757.21 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 258.9 MB). Peak memory consumption was 258.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 204609.52 ms. Allocated memory was 2.3 GB in the beginning and 4.4 GB in the end (delta: 2.1 GB). Free memory was 1.9 GB in the beginning and 2.5 GB in the end (delta: -520.9 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1638]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 4160. RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown