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/Problem17_label35_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 06:45:09,447 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 06:45:09,450 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 06:45:09,467 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 06:45:09,468 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 06:45:09,469 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 06:45:09,471 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 06:45:09,474 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 06:45:09,475 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 06:45:09,477 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 06:45:09,478 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 06:45:09,478 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 06:45:09,481 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 06:45:09,483 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 06:45:09,485 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 06:45:09,485 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 06:45:09,486 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 06:45:09,489 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 06:45:09,491 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 06:45:09,499 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 06:45:09,502 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 06:45:09,503 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 06:45:09,505 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 06:45:09,506 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 06:45:09,507 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 06:45:09,508 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 06:45:09,509 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 06:45:09,509 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 06:45:09,513 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 06:45:09,514 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 06:45:09,514 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 06:45:09,514 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 06:45:09,515 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 06:45:09,515 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 06:45:09,516 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 06:45:09,517 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 06:45:09,519 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 06:45:09,544 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 06:45:09,544 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 06:45:09,545 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 06:45:09,545 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 06:45:09,545 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 06:45:09,545 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 06:45:09,546 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 06:45:09,546 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 06:45:09,546 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 06:45:09,546 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 06:45:09,546 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 06:45:09,547 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 06:45:09,547 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 06:45:09,547 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 06:45:09,548 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 06:45:09,548 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 06:45:09,548 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 06:45:09,548 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 06:45:09,548 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 06:45:09,549 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 06:45:09,549 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 06:45:09,549 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 06:45:09,549 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 06:45:09,549 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 06:45:09,550 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 06:45:09,550 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 06:45:09,550 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 06:45:09,550 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 06:45:09,550 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 06:45:09,550 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 06:45:09,551 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 06:45:09,551 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 06:45:09,551 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 06:45:09,551 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 06:45:09,551 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 06:45:09,552 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 06:45:09,596 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 06:45:09,613 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 06:45:09,619 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 06:45:09,620 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 06:45:09,621 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 06:45:09,622 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label35_false-unreach-call.c [2018-11-07 06:45:09,686 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6476d56ec/f4a94e98dd8246d6bcff77044d7bc32a/FLAGde9120fdc [2018-11-07 06:45:10,361 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 06:45:10,362 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label35_false-unreach-call.c [2018-11-07 06:45:10,386 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6476d56ec/f4a94e98dd8246d6bcff77044d7bc32a/FLAGde9120fdc [2018-11-07 06:45:10,404 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6476d56ec/f4a94e98dd8246d6bcff77044d7bc32a [2018-11-07 06:45:10,416 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 06:45:10,418 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 06:45:10,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 06:45:10,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 06:45:10,425 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 06:45:10,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:45:10" (1/1) ... [2018-11-07 06:45:10,430 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@627d1230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:45:10, skipping insertion in model container [2018-11-07 06:45:10,430 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:45:10" (1/1) ... [2018-11-07 06:45:10,441 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 06:45:10,565 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 06:45:11,569 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 06:45:11,574 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 06:45:11,998 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 06:45:12,022 INFO L193 MainTranslator]: Completed translation [2018-11-07 06:45:12,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:45:12 WrapperNode [2018-11-07 06:45:12,023 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 06:45:12,024 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 06:45:12,024 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 06:45:12,025 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 06:45:12,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:45:12" (1/1) ... [2018-11-07 06:45:12,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:45:12" (1/1) ... [2018-11-07 06:45:12,293 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 06:45:12,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 06:45:12,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 06:45:12,294 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 06:45:12,305 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:45:12" (1/1) ... [2018-11-07 06:45:12,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:45:12" (1/1) ... [2018-11-07 06:45:12,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:45:12" (1/1) ... [2018-11-07 06:45:12,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:45:12" (1/1) ... [2018-11-07 06:45:12,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:45:12" (1/1) ... [2018-11-07 06:45:12,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:45:12" (1/1) ... [2018-11-07 06:45:12,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:45:12" (1/1) ... [2018-11-07 06:45:12,505 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 06:45:12,506 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 06:45:12,506 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 06:45:12,506 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 06:45:12,507 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:45:12" (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 06:45:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 06:45:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 06:45:12,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 06:45:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 06:45:12,574 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 06:45:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 06:45:12,574 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 06:45:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 06:45:12,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 06:45:12,575 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 06:45:12,575 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 06:45:20,717 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 06:45:20,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:45:20 BoogieIcfgContainer [2018-11-07 06:45:20,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 06:45:20,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 06:45:20,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 06:45:20,724 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 06:45:20,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:45:10" (1/3) ... [2018-11-07 06:45:20,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a8604bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:45:20, skipping insertion in model container [2018-11-07 06:45:20,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:45:12" (2/3) ... [2018-11-07 06:45:20,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a8604bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:45:20, skipping insertion in model container [2018-11-07 06:45:20,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:45:20" (3/3) ... [2018-11-07 06:45:20,728 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label35_false-unreach-call.c [2018-11-07 06:45:20,740 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 06:45:20,750 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 06:45:20,769 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 06:45:20,814 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 06:45:20,814 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 06:45:20,814 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 06:45:20,814 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 06:45:20,815 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 06:45:20,815 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 06:45:20,815 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 06:45:20,815 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 06:45:20,855 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-11-07 06:45:20,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-07 06:45:20,865 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:45:20,867 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 06:45:20,869 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:45:20,878 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:45:20,878 INFO L82 PathProgramCache]: Analyzing trace with hash 95572996, now seen corresponding path program 1 times [2018-11-07 06:45:20,882 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:45:20,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:45:20,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:45:20,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:45:20,936 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:45:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:45:21,330 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 06:45:21,334 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 06:45:21,334 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 06:45:21,334 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:45:21,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 06:45:21,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 06:45:21,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 06:45:21,362 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-11-07 06:45:29,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:45:29,742 INFO L93 Difference]: Finished difference Result 2164 states and 4009 transitions. [2018-11-07 06:45:29,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 06:45:29,744 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-11-07 06:45:29,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:45:29,782 INFO L225 Difference]: With dead ends: 2164 [2018-11-07 06:45:29,782 INFO L226 Difference]: Without dead ends: 1554 [2018-11-07 06:45:29,796 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 06:45:29,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2018-11-07 06:45:29,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1052. [2018-11-07 06:45:29,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2018-11-07 06:45:29,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1882 transitions. [2018-11-07 06:45:29,931 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1882 transitions. Word has length 14 [2018-11-07 06:45:29,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:45:29,932 INFO L480 AbstractCegarLoop]: Abstraction has 1052 states and 1882 transitions. [2018-11-07 06:45:29,932 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 06:45:29,932 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1882 transitions. [2018-11-07 06:45:29,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-11-07 06:45:29,937 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:45:29,938 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 06:45:29,938 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:45:29,938 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:45:29,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1287363666, now seen corresponding path program 1 times [2018-11-07 06:45:29,939 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:45:29,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:45:29,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:45:29,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:45:29,941 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:45:30,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:45:30,302 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 06:45:30,303 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 06:45:30,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 06:45:30,303 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:45:30,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 06:45:30,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 06:45:30,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 06:45:30,306 INFO L87 Difference]: Start difference. First operand 1052 states and 1882 transitions. Second operand 5 states. [2018-11-07 06:45:36,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:45:36,806 INFO L93 Difference]: Finished difference Result 3031 states and 5537 transitions. [2018-11-07 06:45:36,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 06:45:36,807 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 86 [2018-11-07 06:45:36,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:45:36,823 INFO L225 Difference]: With dead ends: 3031 [2018-11-07 06:45:36,824 INFO L226 Difference]: Without dead ends: 1985 [2018-11-07 06:45:36,828 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 06:45:36,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1985 states. [2018-11-07 06:45:36,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1985 to 1959. [2018-11-07 06:45:36,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1959 states. [2018-11-07 06:45:36,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 3239 transitions. [2018-11-07 06:45:36,910 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 3239 transitions. Word has length 86 [2018-11-07 06:45:36,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:45:36,911 INFO L480 AbstractCegarLoop]: Abstraction has 1959 states and 3239 transitions. [2018-11-07 06:45:36,911 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 06:45:36,911 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 3239 transitions. [2018-11-07 06:45:36,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-11-07 06:45:36,915 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:45:36,915 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 06:45:36,915 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:45:36,916 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:45:36,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1162270682, now seen corresponding path program 1 times [2018-11-07 06:45:36,916 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:45:36,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:45:36,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:45:36,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:45:36,917 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:45:36,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:45:37,187 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 06:45:37,187 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:45:37,188 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:45:37,189 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 90 with the following transitions: [2018-11-07 06:45:37,191 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [722], [724], [727], [735], [743], [751], [759], [767], [775], [783], [791], [799], [807], [815], [823], [831], [839], [847], [855], [863], [871], [879], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 06:45:37,276 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:45:37,277 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:45:38,482 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 06:45:38,483 INFO L272 AbstractInterpreter]: Visited 83 different actions 235 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 06:45:38,518 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:45:38,520 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 06:45:38,521 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:45:38,521 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 06:45:38,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:45:38,539 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 06:45:38,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:45:38,623 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 06:45:39,832 WARN L179 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 32 [2018-11-07 06:45:40,009 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 06:45:40,009 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 06:45:40,579 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 13 [2018-11-07 06:45:41,494 WARN L179 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 22 [2018-11-07 06:45:41,801 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 06:45:41,834 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-07 06:45:41,835 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 15 [2018-11-07 06:45:41,835 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:45:41,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 06:45:41,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 06:45:41,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2018-11-07 06:45:41,836 INFO L87 Difference]: Start difference. First operand 1959 states and 3239 transitions. Second operand 6 states. [2018-11-07 06:45:56,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:45:56,319 INFO L93 Difference]: Finished difference Result 7530 states and 12896 transitions. [2018-11-07 06:45:56,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 06:45:56,320 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2018-11-07 06:45:56,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:45:56,358 INFO L225 Difference]: With dead ends: 7530 [2018-11-07 06:45:56,358 INFO L226 Difference]: Without dead ends: 5577 [2018-11-07 06:45:56,374 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 172 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2018-11-07 06:45:56,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5577 states. [2018-11-07 06:45:56,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5577 to 5568. [2018-11-07 06:45:56,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5568 states. [2018-11-07 06:45:56,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5568 states to 5568 states and 9048 transitions. [2018-11-07 06:45:56,546 INFO L78 Accepts]: Start accepts. Automaton has 5568 states and 9048 transitions. Word has length 89 [2018-11-07 06:45:56,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:45:56,547 INFO L480 AbstractCegarLoop]: Abstraction has 5568 states and 9048 transitions. [2018-11-07 06:45:56,547 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 06:45:56,547 INFO L276 IsEmpty]: Start isEmpty. Operand 5568 states and 9048 transitions. [2018-11-07 06:45:56,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-11-07 06:45:56,551 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:45:56,551 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 06:45:56,552 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:45:56,552 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:45:56,552 INFO L82 PathProgramCache]: Analyzing trace with hash -5951310, now seen corresponding path program 1 times [2018-11-07 06:45:56,552 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:45:56,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:45:56,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:45:56,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:45:56,554 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:45:56,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:45:56,831 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 06:45:57,102 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 06:45:57,102 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:45:57,102 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:45:57,103 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 103 with the following transitions: [2018-11-07 06:45:57,103 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [722], [724], [727], [735], [743], [751], [759], [767], [775], [783], [791], [799], [807], [815], [823], [831], [839], [847], [855], [863], [871], [879], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 06:45:57,108 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:45:57,108 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:45:57,393 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 06:45:57,393 INFO L272 AbstractInterpreter]: Visited 96 different actions 185 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 06:45:57,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:45:57,431 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 06:45:57,431 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:45:57,431 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 06:45:57,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:45:57,449 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 06:45:57,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:45:57,507 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 06:45:57,685 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 06:45:57,686 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 06:45:57,846 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 06:45:57,867 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-07 06:45:57,868 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-11-07 06:45:57,868 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:45:57,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 06:45:57,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 06:45:57,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 06:45:57,869 INFO L87 Difference]: Start difference. First operand 5568 states and 9048 transitions. Second operand 3 states. [2018-11-07 06:46:01,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:46:01,108 INFO L93 Difference]: Finished difference Result 13756 states and 22315 transitions. [2018-11-07 06:46:01,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 06:46:01,110 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2018-11-07 06:46:01,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:46:01,153 INFO L225 Difference]: With dead ends: 13756 [2018-11-07 06:46:01,153 INFO L226 Difference]: Without dead ends: 8194 [2018-11-07 06:46:01,192 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 203 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 06:46:01,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8194 states. [2018-11-07 06:46:01,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8194 to 8193. [2018-11-07 06:46:01,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8193 states. [2018-11-07 06:46:01,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8193 states to 8193 states and 12487 transitions. [2018-11-07 06:46:01,429 INFO L78 Accepts]: Start accepts. Automaton has 8193 states and 12487 transitions. Word has length 102 [2018-11-07 06:46:01,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:46:01,429 INFO L480 AbstractCegarLoop]: Abstraction has 8193 states and 12487 transitions. [2018-11-07 06:46:01,429 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 06:46:01,430 INFO L276 IsEmpty]: Start isEmpty. Operand 8193 states and 12487 transitions. [2018-11-07 06:46:01,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-11-07 06:46:01,435 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:46:01,435 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 06:46:01,435 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:46:01,436 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:46:01,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1202922802, now seen corresponding path program 1 times [2018-11-07 06:46:01,436 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:46:01,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:46:01,437 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:46:01,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:46:01,437 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:46:01,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:46:01,732 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 06:46:01,733 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 06:46:01,733 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 06:46:01,733 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:46:01,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 06:46:01,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 06:46:01,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 06:46:01,735 INFO L87 Difference]: Start difference. First operand 8193 states and 12487 transitions. Second operand 5 states. [2018-11-07 06:46:09,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:46:09,289 INFO L93 Difference]: Finished difference Result 25050 states and 40610 transitions. [2018-11-07 06:46:09,293 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 06:46:09,293 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2018-11-07 06:46:09,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:46:09,391 INFO L225 Difference]: With dead ends: 25050 [2018-11-07 06:46:09,392 INFO L226 Difference]: Without dead ends: 16863 [2018-11-07 06:46:09,432 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 06:46:09,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16863 states. [2018-11-07 06:46:09,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16863 to 16726. [2018-11-07 06:46:09,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16726 states. [2018-11-07 06:46:09,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16726 states to 16726 states and 24149 transitions. [2018-11-07 06:46:09,908 INFO L78 Accepts]: Start accepts. Automaton has 16726 states and 24149 transitions. Word has length 104 [2018-11-07 06:46:09,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:46:09,909 INFO L480 AbstractCegarLoop]: Abstraction has 16726 states and 24149 transitions. [2018-11-07 06:46:09,909 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 06:46:09,909 INFO L276 IsEmpty]: Start isEmpty. Operand 16726 states and 24149 transitions. [2018-11-07 06:46:09,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2018-11-07 06:46:09,914 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:46:09,915 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 06:46:09,915 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:46:09,915 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:46:09,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1301680348, now seen corresponding path program 1 times [2018-11-07 06:46:09,916 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:46:09,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:46:09,917 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:46:09,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:46:09,917 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:46:09,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:46:10,449 WARN L179 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 06:46:10,639 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-11-07 06:46:10,639 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:46:10,639 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:46:10,639 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 180 with the following transitions: [2018-11-07 06:46:10,640 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [722], [724], [727], [735], [743], [751], [759], [767], [775], [783], [791], [799], [807], [815], [823], [831], [839], [847], [855], [863], [871], [879], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1283], [1287], [1290], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 06:46:10,644 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:46:10,644 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:46:11,098 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 06:46:11,099 INFO L272 AbstractInterpreter]: Visited 99 different actions 283 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 06:46:11,137 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:46:11,137 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 06:46:11,137 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:46:11,137 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 06:46:11,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:46:11,154 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 06:46:11,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:46:11,237 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 06:46:11,631 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 87 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 06:46:11,632 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 06:46:12,153 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 87 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 06:46:12,175 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 06:46:12,175 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-11-07 06:46:12,175 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 06:46:12,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-07 06:46:12,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-07 06:46:12,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-07 06:46:12,177 INFO L87 Difference]: Start difference. First operand 16726 states and 24149 transitions. Second operand 9 states. [2018-11-07 06:46:17,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:46:17,834 INFO L93 Difference]: Finished difference Result 32643 states and 47630 transitions. [2018-11-07 06:46:17,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-07 06:46:17,839 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 179 [2018-11-07 06:46:17,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:46:18,101 INFO L225 Difference]: With dead ends: 32643 [2018-11-07 06:46:18,101 INFO L226 Difference]: Without dead ends: 13239 [2018-11-07 06:46:18,146 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 356 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2018-11-07 06:46:18,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13239 states. [2018-11-07 06:46:18,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13239 to 13172. [2018-11-07 06:46:18,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13172 states. [2018-11-07 06:46:18,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13172 states to 13172 states and 15477 transitions. [2018-11-07 06:46:18,392 INFO L78 Accepts]: Start accepts. Automaton has 13172 states and 15477 transitions. Word has length 179 [2018-11-07 06:46:18,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:46:18,393 INFO L480 AbstractCegarLoop]: Abstraction has 13172 states and 15477 transitions. [2018-11-07 06:46:18,393 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-07 06:46:18,393 INFO L276 IsEmpty]: Start isEmpty. Operand 13172 states and 15477 transitions. [2018-11-07 06:46:18,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2018-11-07 06:46:18,400 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:46:18,401 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-11-07 06:46:18,401 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:46:18,401 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:46:18,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1103957971, now seen corresponding path program 1 times [2018-11-07 06:46:18,402 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:46:18,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:46:18,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:46:18,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:46:18,403 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:46:18,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:46:18,663 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-11-07 06:46:18,663 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 06:46:18,663 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 06:46:18,664 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:46:18,664 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 06:46:18,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 06:46:18,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 06:46:18,665 INFO L87 Difference]: Start difference. First operand 13172 states and 15477 transitions. Second operand 3 states. [2018-11-07 06:46:22,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:46:22,344 INFO L93 Difference]: Finished difference Result 34178 states and 40931 transitions. [2018-11-07 06:46:22,352 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 06:46:22,352 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 268 [2018-11-07 06:46:22,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:46:22,416 INFO L225 Difference]: With dead ends: 34178 [2018-11-07 06:46:22,417 INFO L226 Difference]: Without dead ends: 17559 [2018-11-07 06:46:22,447 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 06:46:22,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17559 states. [2018-11-07 06:46:22,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17559 to 17550. [2018-11-07 06:46:22,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17550 states. [2018-11-07 06:46:22,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17550 states to 17550 states and 20449 transitions. [2018-11-07 06:46:22,764 INFO L78 Accepts]: Start accepts. Automaton has 17550 states and 20449 transitions. Word has length 268 [2018-11-07 06:46:22,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:46:22,764 INFO L480 AbstractCegarLoop]: Abstraction has 17550 states and 20449 transitions. [2018-11-07 06:46:22,765 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 06:46:22,765 INFO L276 IsEmpty]: Start isEmpty. Operand 17550 states and 20449 transitions. [2018-11-07 06:46:22,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2018-11-07 06:46:22,776 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:46:22,776 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:46:22,777 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:46:22,777 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:46:22,777 INFO L82 PathProgramCache]: Analyzing trace with hash 329323695, now seen corresponding path program 1 times [2018-11-07 06:46:22,777 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:46:22,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:46:22,778 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:46:22,778 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:46:22,779 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:46:22,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:46:23,583 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 06:46:23,584 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:46:23,584 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:46:23,585 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 363 with the following transitions: [2018-11-07 06:46:23,585 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [37], [41], [45], [56], [60], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [115], [119], [123], [127], [138], [142], [146], [150], [154], [158], [169], [173], [177], [181], [185], [189], [193], [204], [208], [212], [216], [227], [231], [235], [239], [250], [254], [258], [262], [266], [270], [273], [710], [711], [718], [722], [724], [727], [735], [743], [751], [759], [767], [775], [783], [791], [799], [807], [815], [823], [831], [839], [847], [855], [863], [871], [879], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1428], [1432], [1436], [1440], [1451], [1455], [1459], [1463], [1467], [1471], [1475], [1479], [1490], [1501], [1505], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1559], [1563], [1567], [1578], [1582], [1593], [1597], [1601], [1612], [1623], [1627], [1631], [1635], [1639], [1643], [1647], [1651], [1655], [1659], [1663], [1667], [1678], [1689], [1693], [1697], [1701], [1705], [1709], [1713], [1717], [1728], [1732], [1736], [1747], [1751], [1755], [1759], [1763], [1767], [1771], [1775], [1779], [1783], [1787], [1791], [1795], [1799], [1803], [1807], [1818], [1822], [1826], [1830], [1834], [1838], [1842], [1846], [1850], [1854], [1858], [1862], [1866], [1870], [1874], [1878], [1882], [1886], [1890], [1894], [1898], [1902], [1906], [1910], [1914], [1918], [1922], [1933], [1937], [1941], [1945], [1949], [1960], [1964], [1968], [1972], [1976], [1980], [1984], [1988], [1992], [1996], [2000], [2004], [2008], [2012], [2016], [2020], [2024], [2028], [2039], [2043], [2047], [2051], [2055], [2066], [2070], [2074], [2078], [2089], [2093], [2104], [2108], [2119], [2123], [2127], [2131], [2135], [2139], [2143], [2147], [2151], [2155], [2159], [2163], [2167], [2171], [2175], [2179], [2183], [2187], [2191], [2202], [2206], [2210], [2214], [2218], [2229], [2233], [2237], [2241], [2252], [2256], [2260], [2264], [2268], [2272], [2276], [2278], [2279], [2283], [2287], [2293], [2297], [2299], [2304], [2305], [2306], [2307], [2308], [2310], [2311] [2018-11-07 06:46:23,603 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:46:23,604 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:46:25,085 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 06:46:25,085 INFO L272 AbstractInterpreter]: Visited 356 different actions 1054 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 06:46:25,127 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:46:25,127 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 06:46:25,127 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:46:25,128 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 06:46:25,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:46:25,145 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 06:46:25,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:46:25,266 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 06:46:25,559 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 06:46:25,560 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 06:46:26,232 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 06:46:26,251 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-07 06:46:26,252 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 6] total 11 [2018-11-07 06:46:26,252 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:46:26,253 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 06:46:26,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 06:46:26,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-11-07 06:46:26,253 INFO L87 Difference]: Start difference. First operand 17550 states and 20449 transitions. Second operand 6 states. [2018-11-07 06:46:31,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:46:31,979 INFO L93 Difference]: Finished difference Result 37294 states and 43511 transitions. [2018-11-07 06:46:31,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 06:46:31,980 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 362 [2018-11-07 06:46:31,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:46:32,038 INFO L225 Difference]: With dead ends: 37294 [2018-11-07 06:46:32,039 INFO L226 Difference]: Without dead ends: 18869 [2018-11-07 06:46:32,066 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 733 GetRequests, 722 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-11-07 06:46:32,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18869 states. [2018-11-07 06:46:32,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18869 to 17558. [2018-11-07 06:46:32,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17558 states. [2018-11-07 06:46:32,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17558 states to 17558 states and 20459 transitions. [2018-11-07 06:46:32,552 INFO L78 Accepts]: Start accepts. Automaton has 17558 states and 20459 transitions. Word has length 362 [2018-11-07 06:46:32,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:46:32,553 INFO L480 AbstractCegarLoop]: Abstraction has 17558 states and 20459 transitions. [2018-11-07 06:46:32,553 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 06:46:32,553 INFO L276 IsEmpty]: Start isEmpty. Operand 17558 states and 20459 transitions. [2018-11-07 06:46:32,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2018-11-07 06:46:32,575 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:46:32,575 INFO L375 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:46:32,575 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:46:32,576 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:46:32,576 INFO L82 PathProgramCache]: Analyzing trace with hash 2090429425, now seen corresponding path program 1 times [2018-11-07 06:46:32,576 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:46:32,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:46:32,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:46:32,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:46:32,577 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:46:32,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:46:33,401 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 31 proven. 164 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-11-07 06:46:33,401 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:46:33,401 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:46:33,401 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 447 with the following transitions: [2018-11-07 06:46:33,402 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [722], [724], [727], [735], [743], [751], [759], [767], [775], [783], [791], [799], [807], [815], [823], [831], [839], [847], [855], [863], [871], [879], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1266], [1267], [1271], [1275], [1279], [1282], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1428], [1432], [1436], [1440], [1451], [1455], [1459], [1463], [1467], [1471], [1475], [1479], [1490], [1501], [1505], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1559], [1563], [1567], [1578], [1582], [1593], [1597], [1601], [1612], [1623], [1627], [1631], [1635], [1639], [1643], [1647], [1651], [1655], [1659], [1663], [1667], [1678], [1689], [1693], [1697], [1701], [1705], [1709], [1713], [1717], [1728], [1732], [1736], [1747], [1751], [1755], [1759], [1763], [1767], [1771], [1775], [1779], [1783], [1787], [1791], [1795], [1799], [1803], [1807], [1818], [1822], [1826], [1830], [1834], [1838], [1842], [1846], [1850], [1854], [1858], [1862], [1866], [1870], [1874], [1878], [1882], [1886], [1890], [1894], [1898], [1902], [1906], [1910], [1914], [1918], [1922], [1933], [1937], [1941], [1945], [1949], [1960], [1964], [1968], [1972], [1976], [1980], [1984], [1988], [1992], [1996], [2000], [2004], [2008], [2012], [2016], [2020], [2024], [2028], [2039], [2043], [2047], [2051], [2055], [2066], [2070], [2074], [2078], [2089], [2093], [2104], [2108], [2119], [2123], [2127], [2131], [2135], [2138], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 06:46:33,408 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:46:33,409 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:46:34,025 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 06:46:34,025 INFO L272 AbstractInterpreter]: Visited 270 different actions 541 times. Merged at 8 different actions 13 times. Never widened. Found 3 fixpoints after 3 different actions. Largest state had 26 variables. [2018-11-07 06:46:34,061 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:46:34,061 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 06:46:34,062 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:46:34,062 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 06:46:34,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:46:34,075 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 06:46:34,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:46:34,214 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 06:46:34,640 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 17 [2018-11-07 06:46:34,988 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 190 proven. 2 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-11-07 06:46:34,988 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 06:46:35,991 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 31 proven. 241 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 06:46:36,012 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 06:46:36,013 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 14 [2018-11-07 06:46:36,013 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 06:46:36,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-07 06:46:36,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-07 06:46:36,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2018-11-07 06:46:36,015 INFO L87 Difference]: Start difference. First operand 17558 states and 20459 transitions. Second operand 9 states. [2018-11-07 06:46:45,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:46:45,799 INFO L93 Difference]: Finished difference Result 65514 states and 77882 transitions. [2018-11-07 06:46:45,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-11-07 06:46:45,799 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 446 [2018-11-07 06:46:45,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:46:45,894 INFO L225 Difference]: With dead ends: 65514 [2018-11-07 06:46:45,894 INFO L226 Difference]: Without dead ends: 46189 [2018-11-07 06:46:45,928 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 919 GetRequests, 895 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=170, Invalid=382, Unknown=0, NotChecked=0, Total=552 [2018-11-07 06:46:45,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46189 states. [2018-11-07 06:46:46,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46189 to 36139. [2018-11-07 06:46:46,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36139 states. [2018-11-07 06:46:46,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36139 states to 36139 states and 42488 transitions. [2018-11-07 06:46:46,580 INFO L78 Accepts]: Start accepts. Automaton has 36139 states and 42488 transitions. Word has length 446 [2018-11-07 06:46:46,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:46:46,580 INFO L480 AbstractCegarLoop]: Abstraction has 36139 states and 42488 transitions. [2018-11-07 06:46:46,580 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-07 06:46:46,581 INFO L276 IsEmpty]: Start isEmpty. Operand 36139 states and 42488 transitions. [2018-11-07 06:46:46,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2018-11-07 06:46:46,606 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:46:46,607 INFO L375 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 06:46:46,607 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:46:46,607 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:46:46,608 INFO L82 PathProgramCache]: Analyzing trace with hash 254851670, now seen corresponding path program 1 times [2018-11-07 06:46:46,608 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:46:46,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:46:46,609 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:46:46,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:46:46,609 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:46:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:46:47,686 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 33 proven. 269 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 06:46:47,687 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:46:47,687 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:46:47,687 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 473 with the following transitions: [2018-11-07 06:46:47,687 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [722], [724], [727], [735], [743], [751], [759], [767], [775], [783], [791], [799], [807], [815], [823], [831], [839], [847], [855], [863], [871], [879], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1428], [1432], [1436], [1440], [1451], [1455], [1459], [1463], [1467], [1471], [1475], [1479], [1490], [1501], [1505], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1559], [1563], [1567], [1578], [1582], [1593], [1597], [1601], [1612], [1623], [1627], [1631], [1635], [1639], [1643], [1647], [1651], [1655], [1659], [1663], [1667], [1678], [1689], [1693], [1697], [1701], [1705], [1709], [1713], [1717], [1728], [1732], [1736], [1747], [1751], [1755], [1759], [1763], [1767], [1771], [1775], [1779], [1783], [1787], [1791], [1795], [1799], [1803], [1807], [1818], [1822], [1826], [1830], [1834], [1838], [1842], [1846], [1850], [1854], [1858], [1862], [1866], [1870], [1874], [1878], [1882], [1886], [1890], [1894], [1898], [1902], [1906], [1910], [1914], [1918], [1922], [1933], [1937], [1941], [1945], [1949], [1960], [1964], [1968], [1972], [1976], [1980], [1984], [1988], [1992], [1996], [2000], [2004], [2008], [2012], [2016], [2020], [2024], [2028], [2039], [2043], [2047], [2051], [2055], [2066], [2070], [2074], [2078], [2089], [2093], [2104], [2108], [2119], [2123], [2127], [2131], [2135], [2138], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 06:46:47,692 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:46:47,693 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:46:48,375 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 06:46:48,375 INFO L272 AbstractInterpreter]: Visited 270 different actions 541 times. Merged at 8 different actions 13 times. Never widened. Found 3 fixpoints after 3 different actions. Largest state had 26 variables. [2018-11-07 06:46:48,413 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:46:48,413 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 06:46:48,413 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:46:48,413 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 06:46:48,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:46:48,427 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 06:46:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:46:48,569 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 06:46:49,125 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 297 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-11-07 06:46:49,125 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 06:46:49,609 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-11-07 06:46:50,669 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 27 proven. 275 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 06:46:50,690 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-11-07 06:46:50,691 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 20 [2018-11-07 06:46:50,691 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-11-07 06:46:50,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-07 06:46:50,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-07 06:46:50,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2018-11-07 06:46:50,694 INFO L87 Difference]: Start difference. First operand 36139 states and 42488 transitions. Second operand 15 states. [2018-11-07 06:47:10,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:47:10,922 INFO L93 Difference]: Finished difference Result 98767 states and 123268 transitions. [2018-11-07 06:47:10,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2018-11-07 06:47:10,923 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 472 [2018-11-07 06:47:10,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:47:11,407 INFO L225 Difference]: With dead ends: 98767 [2018-11-07 06:47:11,408 INFO L226 Difference]: Without dead ends: 61745 [2018-11-07 06:47:11,449 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1061 GetRequests, 983 SyntacticMatches, 3 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1877 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1203, Invalid=4649, Unknown=0, NotChecked=0, Total=5852 [2018-11-07 06:47:11,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61745 states. [2018-11-07 06:47:12,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61745 to 57079. [2018-11-07 06:47:12,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57079 states. [2018-11-07 06:47:12,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57079 states to 57079 states and 66434 transitions. [2018-11-07 06:47:12,531 INFO L78 Accepts]: Start accepts. Automaton has 57079 states and 66434 transitions. Word has length 472 [2018-11-07 06:47:12,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:47:12,532 INFO L480 AbstractCegarLoop]: Abstraction has 57079 states and 66434 transitions. [2018-11-07 06:47:12,532 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-07 06:47:12,532 INFO L276 IsEmpty]: Start isEmpty. Operand 57079 states and 66434 transitions. [2018-11-07 06:47:12,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2018-11-07 06:47:12,569 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:47:12,570 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:47:12,570 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:47:12,571 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:47:12,571 INFO L82 PathProgramCache]: Analyzing trace with hash -995155049, now seen corresponding path program 1 times [2018-11-07 06:47:12,571 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:47:12,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:47:12,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:47:12,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:47:12,572 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:47:12,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:47:13,118 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 358 proven. 2 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2018-11-07 06:47:13,119 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:47:13,119 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:47:13,119 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 552 with the following transitions: [2018-11-07 06:47:13,119 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [722], [724], [727], [735], [743], [751], [759], [767], [775], [783], [791], [799], [807], [815], [823], [831], [839], [847], [855], [863], [871], [879], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1420], [1425], [1427], [1428], [1432], [1436], [1440], [1451], [1455], [1459], [1463], [1467], [1471], [1475], [1479], [1490], [1501], [1505], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1559], [1563], [1567], [1578], [1582], [1593], [1597], [1601], [1612], [1623], [1626], [1627], [1631], [1635], [1639], [1643], [1647], [1651], [1655], [1659], [1663], [1667], [1678], [1689], [1693], [1697], [1701], [1705], [1709], [1713], [1717], [1720], [1723], [1727], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 06:47:13,123 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:47:13,123 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:47:13,494 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 06:47:13,495 INFO L272 AbstractInterpreter]: Visited 188 different actions 374 times. Merged at 8 different actions 14 times. Never widened. Found 4 fixpoints after 3 different actions. Largest state had 26 variables. [2018-11-07 06:47:13,536 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:47:13,537 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 06:47:13,537 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:47:13,537 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 06:47:13,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:47:13,548 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 06:47:13,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:47:13,704 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 06:47:14,064 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2018-11-07 06:47:14,064 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 06:47:14,388 INFO L134 CoverageAnalysis]: Checked inductivity of 683 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 646 trivial. 0 not checked. [2018-11-07 06:47:14,408 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-07 06:47:14,409 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-11-07 06:47:14,409 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 06:47:14,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 06:47:14,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 06:47:14,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-07 06:47:14,410 INFO L87 Difference]: Start difference. First operand 57079 states and 66434 transitions. Second operand 3 states. [2018-11-07 06:47:17,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 06:47:17,842 INFO L93 Difference]: Finished difference Result 129316 states and 152185 transitions. [2018-11-07 06:47:17,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 06:47:17,843 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 551 [2018-11-07 06:47:17,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 06:47:17,998 INFO L225 Difference]: With dead ends: 129316 [2018-11-07 06:47:17,998 INFO L226 Difference]: Without dead ends: 62780 [2018-11-07 06:47:18,082 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1108 GetRequests, 1102 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-07 06:47:18,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62780 states. [2018-11-07 06:47:18,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62780 to 59733. [2018-11-07 06:47:18,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59733 states. [2018-11-07 06:47:18,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59733 states to 59733 states and 69217 transitions. [2018-11-07 06:47:18,891 INFO L78 Accepts]: Start accepts. Automaton has 59733 states and 69217 transitions. Word has length 551 [2018-11-07 06:47:18,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 06:47:18,893 INFO L480 AbstractCegarLoop]: Abstraction has 59733 states and 69217 transitions. [2018-11-07 06:47:18,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 06:47:18,893 INFO L276 IsEmpty]: Start isEmpty. Operand 59733 states and 69217 transitions. [2018-11-07 06:47:18,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 577 [2018-11-07 06:47:18,921 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 06:47:18,921 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:47:18,922 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 06:47:18,922 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:47:18,922 INFO L82 PathProgramCache]: Analyzing trace with hash 494168740, now seen corresponding path program 1 times [2018-11-07 06:47:18,922 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 06:47:18,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:47:18,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:47:18,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 06:47:18,923 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 06:47:19,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:47:19,436 WARN L179 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-07 06:47:19,754 WARN L179 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-11-07 06:47:20,101 WARN L179 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-11-07 06:47:20,398 WARN L179 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-11-07 06:47:20,750 WARN L179 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 17 [2018-11-07 06:47:21,717 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 41 proven. 451 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-11-07 06:47:21,717 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:47:21,718 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 06:47:21,718 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 577 with the following transitions: [2018-11-07 06:47:21,718 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [722], [724], [727], [735], [743], [751], [759], [767], [775], [783], [791], [799], [807], [815], [823], [831], [839], [847], [855], [863], [871], [879], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1266], [1267], [1271], [1275], [1279], [1282], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1428], [1432], [1436], [1440], [1451], [1455], [1459], [1463], [1467], [1471], [1475], [1478], [1479], [1490], [1501], [1505], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1559], [1563], [1567], [1578], [1582], [1593], [1597], [1601], [1612], [1623], [1627], [1631], [1635], [1639], [1643], [1647], [1651], [1655], [1659], [1663], [1667], [1678], [1689], [1693], [1697], [1701], [1705], [1709], [1713], [1717], [1728], [1732], [1736], [1747], [1751], [1755], [1759], [1763], [1767], [1771], [1775], [1779], [1783], [1787], [1791], [1795], [1799], [1803], [1807], [1818], [1822], [1826], [1830], [1834], [1838], [1842], [1846], [1850], [1854], [1858], [1862], [1866], [1870], [1874], [1878], [1882], [1886], [1890], [1894], [1898], [1902], [1906], [1910], [1914], [1918], [1922], [1933], [1937], [1941], [1945], [1949], [1960], [1964], [1968], [1972], [1976], [1980], [1984], [1988], [1992], [1996], [2000], [2004], [2008], [2012], [2016], [2020], [2024], [2028], [2039], [2043], [2047], [2051], [2055], [2066], [2070], [2074], [2078], [2089], [2093], [2104], [2108], [2119], [2123], [2127], [2131], [2135], [2138], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-11-07 06:47:21,722 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 06:47:21,723 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 06:47:22,277 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-07 06:47:22,278 INFO L272 AbstractInterpreter]: Visited 271 different actions 546 times. Merged at 9 different actions 16 times. Never widened. Found 4 fixpoints after 3 different actions. Largest state had 26 variables. [2018-11-07 06:47:22,315 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 06:47:22,315 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-07 06:47:22,315 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 06:47:22,316 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 06:47:22,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 06:47:22,825 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 06:47:22,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 06:47:23,004 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 06:47:23,872 WARN L179 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 51 [2018-11-07 06:47:24,949 WARN L179 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 25 [2018-11-07 06:47:25,512 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 431 proven. 55 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-11-07 06:47:25,512 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-07 06:47:25,679 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 26 [2018-11-07 06:47:26,996 WARN L179 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 28 [2018-11-07 06:47:27,148 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-07 06:47:27,195 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 125 [2018-11-07 06:47:28,550 WARN L177 XnfTransformerHelper]: Simplifying conjuction of 8373 disjunctions. This might take some time... [2018-11-07 06:47:28,595 INFO L193 XnfTransformerHelper]: Simplified to conjuction of 6 disjunctions. [2018-11-07 06:47:28,709 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-07 06:47:28,714 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-07 06:47:28,738 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 16002 conjuctions. This might take some time... [2018-11-07 06:47:44,680 INFO L193 XnfTransformerHelper]: Simplified to disjunction of 16002 conjuctions. [2018-11-07 06:47:44,784 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-07 06:47:44,789 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2018-11-07 06:47:44,812 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 16002 conjuctions. This might take some time... [2018-11-07 06:48:00,120 INFO L193 XnfTransformerHelper]: Simplified to disjunction of 16002 conjuctions. Received shutdown request... [2018-11-07 06:48:52,570 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-11-07 06:48:52,771 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 06:48:52,772 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 06:48:52,778 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 06:48:52,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 06:48:52 BoogieIcfgContainer [2018-11-07 06:48:52,778 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 06:48:52,779 INFO L168 Benchmark]: Toolchain (without parser) took 222362.54 ms. Allocated memory was 1.5 GB in the beginning and 7.1 GB in the end (delta: 5.6 GB). Free memory was 1.4 GB in the beginning and 4.0 GB in the end (delta: -2.6 GB). Peak memory consumption was 6.0 GB. Max. memory is 7.1 GB. [2018-11-07 06:48:52,780 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 06:48:52,781 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1604.37 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 140.1 MB). Peak memory consumption was 140.1 MB. Max. memory is 7.1 GB. [2018-11-07 06:48:52,782 INFO L168 Benchmark]: Boogie Procedure Inliner took 268.94 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 739.2 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -920.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. [2018-11-07 06:48:52,783 INFO L168 Benchmark]: Boogie Preprocessor took 212.28 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2018-11-07 06:48:52,783 INFO L168 Benchmark]: RCFGBuilder took 8212.93 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 458.8 MB). Peak memory consumption was 458.8 MB. Max. memory is 7.1 GB. [2018-11-07 06:48:52,784 INFO L168 Benchmark]: TraceAbstraction took 212058.21 ms. Allocated memory was 2.2 GB in the beginning and 7.1 GB in the end (delta: 4.9 GB). Free memory was 1.7 GB in the beginning and 4.0 GB in the end (delta: -2.3 GB). Peak memory consumption was 5.6 GB. Max. memory is 7.1 GB. [2018-11-07 06:48:52,789 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1604.37 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 140.1 MB). Peak memory consumption was 140.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 268.94 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 739.2 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -920.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 212.28 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 8212.93 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.7 GB in the end (delta: 458.8 MB). Peak memory consumption was 458.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 212058.21 ms. Allocated memory was 2.2 GB in the beginning and 7.1 GB in the end (delta: 4.9 GB). Free memory was 1.7 GB in the beginning and 4.0 GB in the end (delta: -2.3 GB). Peak memory consumption was 5.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 29]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 29). Cancelled while BasicCegarLoop was analyzing trace of length 577 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations,while DnfTransformerHelper was transforming 2 conjuction. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 211.9s OverallTime, 12 OverallIterations, 5 TraceHistogramMax, 90.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4048 SDtfs, 23870 SDslu, 3604 SDs, 0 SdLazy, 42237 SolverSat, 9990 SolverUnsat, 135 SolverUnknown, 0 SolverNotchecked, 72.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4624 GetRequests, 4446 SyntacticMatches, 16 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2080 ImplicationChecksByTransitivity, 10.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59733occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 6.1s AbstIntTime, 8 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 4.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 19825 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 14.4s InterpolantComputationTime, 4874 NumberOfCodeBlocks, 4874 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 7050 ConstructedInterpolants, 279 QuantifiedInterpolants, 11225365 SizeOfPredicates, 13 NumberOfNonLiveVariables, 3621 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 25 InterpolantComputations, 10 PerfectInterpolantSequences, 3259/4247 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown