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 --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label05_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 12:18:20,712 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 12:18:20,714 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 12:18:20,726 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 12:18:20,726 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 12:18:20,727 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 12:18:20,728 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 12:18:20,730 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 12:18:20,732 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 12:18:20,733 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 12:18:20,733 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 12:18:20,734 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 12:18:20,736 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 12:18:20,737 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 12:18:20,738 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 12:18:20,739 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 12:18:20,740 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 12:18:20,741 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 12:18:20,746 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 12:18:20,749 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 12:18:20,751 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 12:18:20,753 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 12:18:20,758 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 12:18:20,759 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 12:18:20,759 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 12:18:20,760 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 12:18:20,761 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 12:18:20,762 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 12:18:20,763 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 12:18:20,767 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 12:18:20,767 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 12:18:20,768 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-18 12:18:20,768 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 12:18:20,768 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 12:18:20,769 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 12:18:20,772 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 12:18:20,773 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-18 12:18:20,805 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 12:18:20,805 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 12:18:20,806 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 12:18:20,806 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 12:18:20,806 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 12:18:20,807 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 12:18:20,807 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 12:18:20,807 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 12:18:20,807 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 12:18:20,807 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 12:18:20,807 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 12:18:20,808 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 12:18:20,808 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 12:18:20,808 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 12:18:20,809 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 12:18:20,809 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 12:18:20,809 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 12:18:20,809 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 12:18:20,809 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 12:18:20,810 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 12:18:20,810 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 12:18:20,810 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 12:18:20,810 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 12:18:20,810 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 12:18:20,810 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 12:18:20,811 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 12:18:20,811 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 12:18:20,811 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 12:18:20,811 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 12:18:20,811 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 12:18:20,812 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 12:18:20,812 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 12:18:20,812 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 12:18:20,812 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 12:18:20,857 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 12:18:20,869 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 12:18:20,873 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 12:18:20,874 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 12:18:20,875 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 12:18:20,876 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label05_true-unreach-call.c [2018-09-18 12:18:21,249 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/559c1a2ab/30b76a8f25d145cc8141dadd72bbbd4c/FLAG3a9c8c058 [2018-09-18 12:18:21,673 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 12:18:21,674 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label05_true-unreach-call.c [2018-09-18 12:18:21,698 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/559c1a2ab/30b76a8f25d145cc8141dadd72bbbd4c/FLAG3a9c8c058 [2018-09-18 12:18:21,716 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/559c1a2ab/30b76a8f25d145cc8141dadd72bbbd4c [2018-09-18 12:18:21,728 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 12:18:21,731 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 12:18:21,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 12:18:21,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 12:18:21,739 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 12:18:21,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:18:21" (1/1) ... [2018-09-18 12:18:21,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35e1fe5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:18:21, skipping insertion in model container [2018-09-18 12:18:21,744 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:18:21" (1/1) ... [2018-09-18 12:18:21,756 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 12:18:22,848 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 12:18:22,869 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 12:18:23,374 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 12:18:23,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:18:23 WrapperNode [2018-09-18 12:18:23,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 12:18:23,511 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 12:18:23,511 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 12:18:23,511 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 12:18:23,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:18:23" (1/1) ... [2018-09-18 12:18:23,605 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:18:23" (1/1) ... [2018-09-18 12:18:23,734 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 12:18:23,735 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 12:18:23,735 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 12:18:23,735 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 12:18:24,137 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:18:23" (1/1) ... [2018-09-18 12:18:24,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:18:23" (1/1) ... [2018-09-18 12:18:24,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:18:23" (1/1) ... [2018-09-18 12:18:24,173 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:18:23" (1/1) ... [2018-09-18 12:18:24,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:18:23" (1/1) ... [2018-09-18 12:18:24,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:18:23" (1/1) ... [2018-09-18 12:18:24,353 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:18:23" (1/1) ... [2018-09-18 12:18:24,394 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 12:18:24,395 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 12:18:24,395 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 12:18:24,395 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 12:18:24,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:18:23" (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 [2018-09-18 12:18:24,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 12:18:24,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 12:18:24,463 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-18 12:18:24,463 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-18 12:18:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 12:18:24,464 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 12:18:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 12:18:24,464 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 12:18:24,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 12:18:24,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 12:18:24,465 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 12:18:24,465 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 12:18:31,993 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 12:18:31,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:18:31 BoogieIcfgContainer [2018-09-18 12:18:31,997 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 12:18:31,998 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 12:18:31,998 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 12:18:32,001 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 12:18:32,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 12:18:21" (1/3) ... [2018-09-18 12:18:32,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f5d952f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:18:32, skipping insertion in model container [2018-09-18 12:18:32,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:18:23" (2/3) ... [2018-09-18 12:18:32,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f5d952f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:18:32, skipping insertion in model container [2018-09-18 12:18:32,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:18:31" (3/3) ... [2018-09-18 12:18:32,005 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label05_true-unreach-call.c [2018-09-18 12:18:32,014 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 12:18:32,024 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 12:18:32,092 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 12:18:32,093 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 12:18:32,093 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 12:18:32,093 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 12:18:32,093 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 12:18:32,093 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 12:18:32,093 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 12:18:32,094 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 12:18:32,094 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 12:18:32,131 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-09-18 12:18:32,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-09-18 12:18:32,142 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:18:32,144 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:18:32,145 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:18:32,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1029134209, now seen corresponding path program 1 times [2018-09-18 12:18:32,154 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:18:32,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:18:32,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:18:32,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:18:32,212 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:18:32,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:18:32,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:18:32,712 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:18:32,712 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 12:18:32,712 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:18:32,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 12:18:32,738 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 12:18:32,739 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 12:18:32,743 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-09-18 12:18:39,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:18:39,042 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-09-18 12:18:39,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 12:18:39,044 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2018-09-18 12:18:39,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:18:39,090 INFO L225 Difference]: With dead ends: 2251 [2018-09-18 12:18:39,091 INFO L226 Difference]: Without dead ends: 1474 [2018-09-18 12:18:39,102 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 12:18:39,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-09-18 12:18:39,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-09-18 12:18:39,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-09-18 12:18:39,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2715 transitions. [2018-09-18 12:18:39,250 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2715 transitions. Word has length 45 [2018-09-18 12:18:39,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:18:39,251 INFO L480 AbstractCegarLoop]: Abstraction has 1474 states and 2715 transitions. [2018-09-18 12:18:39,251 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 12:18:39,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2715 transitions. [2018-09-18 12:18:39,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-09-18 12:18:39,258 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:18:39,258 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:18:39,259 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:18:39,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1760973291, now seen corresponding path program 1 times [2018-09-18 12:18:39,259 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:18:39,260 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:18:39,260 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:18:39,261 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:18:39,261 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:18:39,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:18:39,609 WARN L178 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:18:39,855 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:18:39,856 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:18:39,856 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 12:18:39,856 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:18:39,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 12:18:39,859 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 12:18:39,859 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 12:18:39,859 INFO L87 Difference]: Start difference. First operand 1474 states and 2715 transitions. Second operand 5 states. [2018-09-18 12:18:49,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:18:49,311 INFO L93 Difference]: Finished difference Result 4419 states and 8226 transitions. [2018-09-18 12:18:49,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 12:18:49,315 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 116 [2018-09-18 12:18:49,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:18:49,338 INFO L225 Difference]: With dead ends: 4419 [2018-09-18 12:18:49,338 INFO L226 Difference]: Without dead ends: 2951 [2018-09-18 12:18:49,343 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-18 12:18:49,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2018-09-18 12:18:49,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2925. [2018-09-18 12:18:49,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2925 states. [2018-09-18 12:18:49,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 4901 transitions. [2018-09-18 12:18:49,448 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 4901 transitions. Word has length 116 [2018-09-18 12:18:49,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:18:49,448 INFO L480 AbstractCegarLoop]: Abstraction has 2925 states and 4901 transitions. [2018-09-18 12:18:49,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 12:18:49,449 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 4901 transitions. [2018-09-18 12:18:49,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-09-18 12:18:49,452 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:18:49,453 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:18:49,453 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:18:49,453 INFO L82 PathProgramCache]: Analyzing trace with hash 1097208028, now seen corresponding path program 1 times [2018-09-18 12:18:49,454 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:18:49,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:18:49,455 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:18:49,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:18:49,455 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:18:49,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:18:49,649 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:18:49,650 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:18:49,650 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 12:18:49,650 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:18:49,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:18:49,651 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:18:49,651 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-18 12:18:49,651 INFO L87 Difference]: Start difference. First operand 2925 states and 4901 transitions. Second operand 6 states. [2018-09-18 12:19:02,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:19:02,184 INFO L93 Difference]: Finished difference Result 11199 states and 19606 transitions. [2018-09-18 12:19:02,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-18 12:19:02,187 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 121 [2018-09-18 12:19:02,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:19:02,249 INFO L225 Difference]: With dead ends: 11199 [2018-09-18 12:19:02,249 INFO L226 Difference]: Without dead ends: 8280 [2018-09-18 12:19:02,279 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-09-18 12:19:02,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8280 states. [2018-09-18 12:19:02,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8280 to 8202. [2018-09-18 12:19:02,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8202 states. [2018-09-18 12:19:02,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8202 states to 8202 states and 12123 transitions. [2018-09-18 12:19:02,524 INFO L78 Accepts]: Start accepts. Automaton has 8202 states and 12123 transitions. Word has length 121 [2018-09-18 12:19:02,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:19:02,524 INFO L480 AbstractCegarLoop]: Abstraction has 8202 states and 12123 transitions. [2018-09-18 12:19:02,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:19:02,525 INFO L276 IsEmpty]: Start isEmpty. Operand 8202 states and 12123 transitions. [2018-09-18 12:19:02,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2018-09-18 12:19:02,529 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:19:02,529 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:19:02,530 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:19:02,530 INFO L82 PathProgramCache]: Analyzing trace with hash 652626716, now seen corresponding path program 1 times [2018-09-18 12:19:02,530 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:19:02,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:19:02,531 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:19:02,531 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:19:02,531 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:19:02,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:19:02,843 WARN L178 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:19:03,114 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:19:03,114 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:19:03,115 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 12:19:03,115 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:19:03,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:19:03,116 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:19:03,116 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 12:19:03,116 INFO L87 Difference]: Start difference. First operand 8202 states and 12123 transitions. Second operand 6 states. [2018-09-18 12:19:08,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:19:08,966 INFO L93 Difference]: Finished difference Result 20964 states and 31521 transitions. [2018-09-18 12:19:08,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 12:19:08,967 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 153 [2018-09-18 12:19:08,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:19:09,051 INFO L225 Difference]: With dead ends: 20964 [2018-09-18 12:19:09,051 INFO L226 Difference]: Without dead ends: 12768 [2018-09-18 12:19:09,085 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 12:19:09,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12768 states. [2018-09-18 12:19:09,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12768 to 12710. [2018-09-18 12:19:09,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12710 states. [2018-09-18 12:19:09,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12710 states to 12710 states and 17130 transitions. [2018-09-18 12:19:09,410 INFO L78 Accepts]: Start accepts. Automaton has 12710 states and 17130 transitions. Word has length 153 [2018-09-18 12:19:09,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:19:09,412 INFO L480 AbstractCegarLoop]: Abstraction has 12710 states and 17130 transitions. [2018-09-18 12:19:09,412 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:19:09,413 INFO L276 IsEmpty]: Start isEmpty. Operand 12710 states and 17130 transitions. [2018-09-18 12:19:09,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2018-09-18 12:19:09,420 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:19:09,420 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 12:19:09,420 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:19:09,421 INFO L82 PathProgramCache]: Analyzing trace with hash 504323522, now seen corresponding path program 1 times [2018-09-18 12:19:09,421 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:19:09,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:19:09,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:19:09,422 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:19:09,422 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:19:09,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:19:09,924 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 154 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:19:09,924 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:19:09,924 INFO L197 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 [2018-09-18 12:19:09,944 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:19:09,945 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:19:10,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:19:10,044 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:19:10,551 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 154 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:19:10,552 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:19:10,953 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 154 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:19:10,974 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:19:10,974 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 12:19:10,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:19:10,992 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:19:11,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:19:11,153 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:19:11,423 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 154 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:19:11,423 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:19:11,860 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 154 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:19:11,862 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 12:19:11,863 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-09-18 12:19:11,863 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 12:19:11,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 12:19:11,864 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 12:19:11,864 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-18 12:19:11,865 INFO L87 Difference]: Start difference. First operand 12710 states and 17130 transitions. Second operand 9 states. [2018-09-18 12:19:27,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:19:27,066 INFO L93 Difference]: Finished difference Result 44877 states and 66733 transitions. [2018-09-18 12:19:27,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-18 12:19:27,066 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 232 [2018-09-18 12:19:27,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:19:27,312 INFO L225 Difference]: With dead ends: 44877 [2018-09-18 12:19:27,312 INFO L226 Difference]: Without dead ends: 32131 [2018-09-18 12:19:27,454 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 953 GetRequests, 924 SyntacticMatches, 7 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=172, Invalid=380, Unknown=0, NotChecked=0, Total=552 [2018-09-18 12:19:27,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32131 states. [2018-09-18 12:19:28,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32131 to 32059. [2018-09-18 12:19:28,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32059 states. [2018-09-18 12:19:28,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32059 states to 32059 states and 43133 transitions. [2018-09-18 12:19:28,414 INFO L78 Accepts]: Start accepts. Automaton has 32059 states and 43133 transitions. Word has length 232 [2018-09-18 12:19:28,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:19:28,416 INFO L480 AbstractCegarLoop]: Abstraction has 32059 states and 43133 transitions. [2018-09-18 12:19:28,416 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 12:19:28,417 INFO L276 IsEmpty]: Start isEmpty. Operand 32059 states and 43133 transitions. [2018-09-18 12:19:28,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2018-09-18 12:19:28,424 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:19:28,424 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 12:19:28,425 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:19:28,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1497230218, now seen corresponding path program 1 times [2018-09-18 12:19:28,425 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:19:28,426 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:19:28,426 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:19:28,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:19:28,427 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:19:28,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:19:29,011 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 148 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:19:29,012 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:19:29,012 INFO L197 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 [2018-09-18 12:19:29,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:19:29,030 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:19:29,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:19:29,113 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:19:29,546 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 148 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:19:29,547 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:19:30,409 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 148 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:19:30,440 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:19:30,440 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 12:19:30,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:19:30,457 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:19:30,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:19:30,600 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:19:30,745 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 148 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:19:30,745 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:19:31,045 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 148 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:19:31,047 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 12:19:31,047 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-09-18 12:19:31,047 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 12:19:31,048 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 12:19:31,049 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 12:19:31,049 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-18 12:19:31,049 INFO L87 Difference]: Start difference. First operand 32059 states and 43133 transitions. Second operand 9 states. [2018-09-18 12:19:45,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:19:45,598 INFO L93 Difference]: Finished difference Result 72655 states and 110329 transitions. [2018-09-18 12:19:45,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-18 12:19:45,598 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 242 [2018-09-18 12:19:45,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:19:45,894 INFO L225 Difference]: With dead ends: 72655 [2018-09-18 12:19:45,894 INFO L226 Difference]: Without dead ends: 38448 [2018-09-18 12:19:46,138 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 988 GetRequests, 963 SyntacticMatches, 7 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=122, Invalid=258, Unknown=0, NotChecked=0, Total=380 [2018-09-18 12:19:46,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38448 states. [2018-09-18 12:19:47,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38448 to 38073. [2018-09-18 12:19:47,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38073 states. [2018-09-18 12:19:47,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38073 states to 38073 states and 52263 transitions. [2018-09-18 12:19:47,716 INFO L78 Accepts]: Start accepts. Automaton has 38073 states and 52263 transitions. Word has length 242 [2018-09-18 12:19:47,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:19:47,716 INFO L480 AbstractCegarLoop]: Abstraction has 38073 states and 52263 transitions. [2018-09-18 12:19:47,717 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 12:19:47,717 INFO L276 IsEmpty]: Start isEmpty. Operand 38073 states and 52263 transitions. [2018-09-18 12:19:47,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2018-09-18 12:19:47,728 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:19:47,728 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-09-18 12:19:47,728 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:19:47,728 INFO L82 PathProgramCache]: Analyzing trace with hash 953556297, now seen corresponding path program 1 times [2018-09-18 12:19:47,729 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:19:47,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:19:47,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:19:47,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:19:47,730 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:19:47,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:19:48,480 WARN L178 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-18 12:19:48,940 WARN L178 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-18 12:19:49,434 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 215 proven. 87 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-09-18 12:19:49,434 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:19:49,434 INFO L197 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 [2018-09-18 12:19:49,442 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:19:49,442 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:19:49,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:19:49,532 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:19:49,629 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2018-09-18 12:19:49,629 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:19:49,762 INFO L134 CoverageAnalysis]: Checked inductivity of 388 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2018-09-18 12:19:49,784 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 12:19:49,784 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [12] total 13 [2018-09-18 12:19:49,784 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:19:49,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 12:19:49,785 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 12:19:49,785 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-09-18 12:19:49,785 INFO L87 Difference]: Start difference. First operand 38073 states and 52263 transitions. Second operand 3 states. [2018-09-18 12:19:55,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:19:55,514 INFO L93 Difference]: Finished difference Result 105175 states and 151560 transitions. [2018-09-18 12:19:55,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 12:19:55,514 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 338 [2018-09-18 12:19:55,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:19:55,972 INFO L225 Difference]: With dead ends: 105175 [2018-09-18 12:19:55,973 INFO L226 Difference]: Without dead ends: 67113 [2018-09-18 12:19:56,235 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 687 GetRequests, 674 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-09-18 12:19:56,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67113 states. [2018-09-18 12:19:57,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67113 to 67103. [2018-09-18 12:19:57,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67103 states. [2018-09-18 12:19:58,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67103 states to 67103 states and 90862 transitions. [2018-09-18 12:19:58,102 INFO L78 Accepts]: Start accepts. Automaton has 67103 states and 90862 transitions. Word has length 338 [2018-09-18 12:19:58,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:19:58,103 INFO L480 AbstractCegarLoop]: Abstraction has 67103 states and 90862 transitions. [2018-09-18 12:19:58,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 12:19:58,104 INFO L276 IsEmpty]: Start isEmpty. Operand 67103 states and 90862 transitions. [2018-09-18 12:19:58,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2018-09-18 12:19:58,114 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:19:58,115 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:19:58,115 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:19:58,115 INFO L82 PathProgramCache]: Analyzing trace with hash -2087401767, now seen corresponding path program 1 times [2018-09-18 12:19:58,115 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:19:58,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:19:58,116 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:19:58,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:19:58,117 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:19:58,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:19:58,856 WARN L178 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-18 12:19:59,612 WARN L178 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2018-09-18 12:20:00,043 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 215 proven. 95 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-09-18 12:20:00,043 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:20:00,043 INFO L197 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 [2018-09-18 12:20:00,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:20:00,052 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:20:00,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:20:00,148 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:20:00,249 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2018-09-18 12:20:00,250 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:20:00,368 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2018-09-18 12:20:00,398 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 12:20:00,399 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [12] total 14 [2018-09-18 12:20:00,399 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:20:00,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 12:20:00,400 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 12:20:00,400 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-09-18 12:20:00,400 INFO L87 Difference]: Start difference. First operand 67103 states and 90862 transitions. Second operand 3 states. [2018-09-18 12:20:07,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:20:07,458 INFO L93 Difference]: Finished difference Result 161736 states and 230097 transitions. [2018-09-18 12:20:07,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 12:20:07,458 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 346 [2018-09-18 12:20:07,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:20:08,161 INFO L225 Difference]: With dead ends: 161736 [2018-09-18 12:20:08,161 INFO L226 Difference]: Without dead ends: 94644 [2018-09-18 12:20:08,784 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 703 GetRequests, 691 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2018-09-18 12:20:08,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94644 states. [2018-09-18 12:20:10,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94644 to 94644. [2018-09-18 12:20:10,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94644 states. [2018-09-18 12:20:12,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94644 states to 94644 states and 130756 transitions. [2018-09-18 12:20:12,786 INFO L78 Accepts]: Start accepts. Automaton has 94644 states and 130756 transitions. Word has length 346 [2018-09-18 12:20:12,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:20:12,787 INFO L480 AbstractCegarLoop]: Abstraction has 94644 states and 130756 transitions. [2018-09-18 12:20:12,787 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 12:20:12,787 INFO L276 IsEmpty]: Start isEmpty. Operand 94644 states and 130756 transitions. [2018-09-18 12:20:12,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2018-09-18 12:20:12,801 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:20:12,801 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-09-18 12:20:12,801 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:20:12,802 INFO L82 PathProgramCache]: Analyzing trace with hash -932189560, now seen corresponding path program 1 times [2018-09-18 12:20:12,802 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:20:12,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:20:12,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:20:12,803 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:20:12,803 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:20:12,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:20:13,762 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 215 proven. 106 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2018-09-18 12:20:13,762 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:20:13,762 INFO L197 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 [2018-09-18 12:20:13,773 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:20:13,773 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:20:13,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:20:13,867 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:20:14,058 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 320 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2018-09-18 12:20:14,058 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:20:14,308 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 320 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2018-09-18 12:20:14,330 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:20:14,330 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 12:20:14,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:20:14,345 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:20:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:20:14,566 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:20:14,684 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 320 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2018-09-18 12:20:14,685 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:20:14,853 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 320 proven. 2 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2018-09-18 12:20:14,856 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 12:20:14,857 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5, 5, 5] total 22 [2018-09-18 12:20:14,857 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 12:20:14,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-18 12:20:14,859 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-18 12:20:14,859 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=383, Unknown=0, NotChecked=0, Total=462 [2018-09-18 12:20:14,860 INFO L87 Difference]: Start difference. First operand 94644 states and 130756 transitions. Second operand 15 states. [2018-09-18 12:20:40,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:20:40,696 INFO L93 Difference]: Finished difference Result 189639 states and 278517 transitions. [2018-09-18 12:20:40,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-09-18 12:20:40,696 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 373 [2018-09-18 12:20:40,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:20:41,293 INFO L225 Difference]: With dead ends: 189639 [2018-09-18 12:20:41,293 INFO L226 Difference]: Without dead ends: 92648 [2018-09-18 12:20:42,538 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1559 GetRequests, 1506 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 685 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=519, Invalid=2343, Unknown=0, NotChecked=0, Total=2862 [2018-09-18 12:20:42,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92648 states. [2018-09-18 12:20:43,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92648 to 89867. [2018-09-18 12:20:43,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89867 states. [2018-09-18 12:20:44,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89867 states to 89867 states and 112638 transitions. [2018-09-18 12:20:44,351 INFO L78 Accepts]: Start accepts. Automaton has 89867 states and 112638 transitions. Word has length 373 [2018-09-18 12:20:44,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:20:44,352 INFO L480 AbstractCegarLoop]: Abstraction has 89867 states and 112638 transitions. [2018-09-18 12:20:44,352 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-18 12:20:44,352 INFO L276 IsEmpty]: Start isEmpty. Operand 89867 states and 112638 transitions. [2018-09-18 12:20:44,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 469 [2018-09-18 12:20:44,369 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:20:44,370 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 3, 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] [2018-09-18 12:20:44,370 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:20:44,371 INFO L82 PathProgramCache]: Analyzing trace with hash 620679948, now seen corresponding path program 1 times [2018-09-18 12:20:44,371 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:20:44,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:20:44,371 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:20:44,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:20:44,372 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:20:44,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:20:45,401 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2018-09-18 12:20:45,401 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:20:45,401 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 12:20:45,401 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:20:45,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 12:20:45,402 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 12:20:45,402 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 12:20:45,402 INFO L87 Difference]: Start difference. First operand 89867 states and 112638 transitions. Second operand 4 states. [2018-09-18 12:20:52,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:20:52,677 INFO L93 Difference]: Finished difference Result 198202 states and 252304 transitions. [2018-09-18 12:20:52,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 12:20:52,677 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 468 [2018-09-18 12:20:52,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:20:57,113 INFO L225 Difference]: With dead ends: 198202 [2018-09-18 12:20:57,113 INFO L226 Difference]: Without dead ends: 104848 [2018-09-18 12:20:57,410 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 12:20:57,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104848 states. [2018-09-18 12:20:58,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104848 to 104783. [2018-09-18 12:20:58,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104783 states. [2018-09-18 12:20:59,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104783 states to 104783 states and 129050 transitions. [2018-09-18 12:20:59,147 INFO L78 Accepts]: Start accepts. Automaton has 104783 states and 129050 transitions. Word has length 468 [2018-09-18 12:20:59,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:20:59,148 INFO L480 AbstractCegarLoop]: Abstraction has 104783 states and 129050 transitions. [2018-09-18 12:20:59,148 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 12:20:59,148 INFO L276 IsEmpty]: Start isEmpty. Operand 104783 states and 129050 transitions. [2018-09-18 12:20:59,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2018-09-18 12:20:59,174 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:20:59,174 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 12:20:59,175 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:20:59,175 INFO L82 PathProgramCache]: Analyzing trace with hash 689522699, now seen corresponding path program 1 times [2018-09-18 12:20:59,175 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:20:59,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:20:59,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:20:59,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:20:59,176 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:20:59,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:21:00,105 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 39 proven. 313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:21:00,105 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:21:00,105 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:21:00,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:21:00,113 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:21:00,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:21:00,266 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:21:00,438 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2018-09-18 12:21:00,438 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:21:00,807 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2018-09-18 12:21:00,828 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 12:21:00,828 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2018-09-18 12:21:00,829 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:21:00,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 12:21:00,830 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 12:21:00,830 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-09-18 12:21:00,830 INFO L87 Difference]: Start difference. First operand 104783 states and 129050 transitions. Second operand 3 states. [2018-09-18 12:21:06,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:21:06,278 INFO L93 Difference]: Finished difference Result 204491 states and 252648 transitions. [2018-09-18 12:21:06,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 12:21:06,278 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 629 [2018-09-18 12:21:06,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:21:06,669 INFO L225 Difference]: With dead ends: 204491 [2018-09-18 12:21:06,669 INFO L226 Difference]: Without dead ends: 103990 [2018-09-18 12:21:07,046 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1270 GetRequests, 1260 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-09-18 12:21:07,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103990 states. [2018-09-18 12:21:08,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103990 to 103346. [2018-09-18 12:21:08,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103346 states. [2018-09-18 12:21:09,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103346 states to 103346 states and 124333 transitions. [2018-09-18 12:21:09,186 INFO L78 Accepts]: Start accepts. Automaton has 103346 states and 124333 transitions. Word has length 629 [2018-09-18 12:21:09,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:21:09,187 INFO L480 AbstractCegarLoop]: Abstraction has 103346 states and 124333 transitions. [2018-09-18 12:21:09,187 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 12:21:09,188 INFO L276 IsEmpty]: Start isEmpty. Operand 103346 states and 124333 transitions. [2018-09-18 12:21:09,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1371 [2018-09-18 12:21:09,537 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:21:09,538 INFO L376 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:21:09,538 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:21:09,539 INFO L82 PathProgramCache]: Analyzing trace with hash 1375465174, now seen corresponding path program 1 times [2018-09-18 12:21:09,539 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:21:09,539 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:21:09,540 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:21:09,540 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:21:09,540 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:21:09,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:21:11,390 INFO L134 CoverageAnalysis]: Checked inductivity of 2291 backedges. 573 proven. 255 refuted. 0 times theorem prover too weak. 1463 trivial. 0 not checked. [2018-09-18 12:21:11,390 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:21:11,390 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:21:11,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:21:11,398 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:21:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:21:11,734 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:21:13,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2291 backedges. 1661 proven. 2 refuted. 0 times theorem prover too weak. 628 trivial. 0 not checked. [2018-09-18 12:21:13,296 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:21:14,341 INFO L134 CoverageAnalysis]: Checked inductivity of 2291 backedges. 573 proven. 255 refuted. 0 times theorem prover too weak. 1463 trivial. 0 not checked. [2018-09-18 12:21:14,362 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:21:14,362 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 12:21:14,379 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:21:14,379 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:21:15,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:21:15,109 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:21:15,704 INFO L134 CoverageAnalysis]: Checked inductivity of 2291 backedges. 1661 proven. 2 refuted. 0 times theorem prover too weak. 628 trivial. 0 not checked. [2018-09-18 12:21:15,704 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:21:16,598 INFO L134 CoverageAnalysis]: Checked inductivity of 2291 backedges. 573 proven. 255 refuted. 0 times theorem prover too weak. 1463 trivial. 0 not checked. [2018-09-18 12:21:16,602 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 12:21:16,603 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 16 [2018-09-18 12:21:16,603 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 12:21:16,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 12:21:16,606 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 12:21:16,606 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2018-09-18 12:21:16,606 INFO L87 Difference]: Start difference. First operand 103346 states and 124333 transitions. Second operand 9 states. [2018-09-18 12:21:34,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:21:34,034 INFO L93 Difference]: Finished difference Result 210289 states and 250752 transitions. [2018-09-18 12:21:34,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2018-09-18 12:21:34,035 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1370 [2018-09-18 12:21:34,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:21:34,285 INFO L225 Difference]: With dead ends: 210289 [2018-09-18 12:21:34,285 INFO L226 Difference]: Without dead ends: 94540 [2018-09-18 12:21:34,541 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5546 GetRequests, 5500 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=452, Invalid=1710, Unknown=0, NotChecked=0, Total=2162 [2018-09-18 12:21:34,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94540 states. [2018-09-18 12:21:36,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94540 to 91690. [2018-09-18 12:21:36,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91690 states. [2018-09-18 12:21:36,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91690 states to 91690 states and 100187 transitions. [2018-09-18 12:21:36,274 INFO L78 Accepts]: Start accepts. Automaton has 91690 states and 100187 transitions. Word has length 1370 [2018-09-18 12:21:36,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:21:36,275 INFO L480 AbstractCegarLoop]: Abstraction has 91690 states and 100187 transitions. [2018-09-18 12:21:36,275 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 12:21:36,275 INFO L276 IsEmpty]: Start isEmpty. Operand 91690 states and 100187 transitions. [2018-09-18 12:21:36,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1244 [2018-09-18 12:21:36,372 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:21:36,373 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:21:36,373 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:21:36,374 INFO L82 PathProgramCache]: Analyzing trace with hash 992459424, now seen corresponding path program 1 times [2018-09-18 12:21:36,374 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:21:36,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:21:36,375 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:21:36,375 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:21:36,375 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:21:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:21:38,405 INFO L134 CoverageAnalysis]: Checked inductivity of 1185 backedges. 805 proven. 2 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2018-09-18 12:21:38,405 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:21:38,406 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:21:38,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:21:38,414 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:21:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:21:38,716 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:21:39,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1185 backedges. 805 proven. 2 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2018-09-18 12:21:39,600 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:21:40,968 INFO L134 CoverageAnalysis]: Checked inductivity of 1185 backedges. 805 proven. 2 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2018-09-18 12:21:40,991 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:21:40,991 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 12:21:41,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:21:41,008 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:21:41,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:21:41,621 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:21:42,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1185 backedges. 805 proven. 2 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2018-09-18 12:21:42,639 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:21:44,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1185 backedges. 805 proven. 2 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2018-09-18 12:21:44,102 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 12:21:44,103 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-09-18 12:21:44,103 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 12:21:44,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 12:21:44,107 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 12:21:44,107 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-18 12:21:44,108 INFO L87 Difference]: Start difference. First operand 91690 states and 100187 transitions. Second operand 9 states. [2018-09-18 12:21:54,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:21:54,966 INFO L93 Difference]: Finished difference Result 183048 states and 201432 transitions. [2018-09-18 12:21:54,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-18 12:21:54,966 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1243 [2018-09-18 12:21:54,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:21:55,157 INFO L225 Difference]: With dead ends: 183048 [2018-09-18 12:21:55,157 INFO L226 Difference]: Without dead ends: 85850 [2018-09-18 12:21:55,284 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5003 GetRequests, 4965 SyntacticMatches, 17 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=158, Invalid=348, Unknown=0, NotChecked=0, Total=506 [2018-09-18 12:21:55,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85850 states. [2018-09-18 12:21:56,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85850 to 82355. [2018-09-18 12:21:56,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82355 states. [2018-09-18 12:21:56,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82355 states to 82355 states and 87322 transitions. [2018-09-18 12:21:56,208 INFO L78 Accepts]: Start accepts. Automaton has 82355 states and 87322 transitions. Word has length 1243 [2018-09-18 12:21:56,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:21:56,208 INFO L480 AbstractCegarLoop]: Abstraction has 82355 states and 87322 transitions. [2018-09-18 12:21:56,208 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 12:21:56,208 INFO L276 IsEmpty]: Start isEmpty. Operand 82355 states and 87322 transitions. [2018-09-18 12:21:56,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1246 [2018-09-18 12:21:56,260 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:21:56,261 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:21:56,261 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:21:56,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1348777558, now seen corresponding path program 1 times [2018-09-18 12:21:56,262 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:21:56,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:21:56,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:21:56,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:21:56,263 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:21:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:21:56,634 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:21:58,090 INFO L134 CoverageAnalysis]: Checked inductivity of 1187 backedges. 152 proven. 354 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2018-09-18 12:21:58,090 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:21:58,090 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:21:58,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:21:58,098 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:21:58,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:21:58,391 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:21:59,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1187 backedges. 398 proven. 0 refuted. 0 times theorem prover too weak. 789 trivial. 0 not checked. [2018-09-18 12:21:59,304 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:22:00,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1187 backedges. 152 proven. 255 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2018-09-18 12:22:00,392 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 12:22:00,393 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 3] total 9 [2018-09-18 12:22:00,393 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:22:00,393 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 12:22:00,394 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 12:22:00,394 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-09-18 12:22:00,394 INFO L87 Difference]: Start difference. First operand 82355 states and 87322 transitions. Second operand 3 states. Received shutdown request... [2018-09-18 12:22:02,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 12:22:02,387 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 12:22:02,391 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 12:22:02,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 12:22:02 BoogieIcfgContainer [2018-09-18 12:22:02,392 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 12:22:02,393 INFO L168 Benchmark]: Toolchain (without parser) took 220664.45 ms. Allocated memory was 1.5 GB in the beginning and 4.9 GB in the end (delta: 3.4 GB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -133.8 MB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. [2018-09-18 12:22:02,395 INFO L168 Benchmark]: CDTParser took 0.19 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. [2018-09-18 12:22:02,395 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1778.63 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: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. [2018-09-18 12:22:02,396 INFO L168 Benchmark]: Boogie Procedure Inliner took 223.89 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2018-09-18 12:22:02,396 INFO L168 Benchmark]: Boogie Preprocessor took 659.75 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 859.3 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. [2018-09-18 12:22:02,397 INFO L168 Benchmark]: RCFGBuilder took 7601.81 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 486.0 MB). Peak memory consumption was 486.0 MB. Max. memory is 7.1 GB. [2018-09-18 12:22:02,398 INFO L168 Benchmark]: TraceAbstraction took 210394.31 ms. Allocated memory was 2.4 GB in the beginning and 4.9 GB in the end (delta: 2.6 GB). Free memory was 1.8 GB in the beginning and 1.5 GB in the end (delta: 252.5 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2018-09-18 12:22:02,403 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1778.63 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: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 223.89 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 659.75 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 859.3 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7601.81 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 486.0 MB). Peak memory consumption was 486.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 210394.31 ms. Allocated memory was 2.4 GB in the beginning and 4.9 GB in the end (delta: 2.6 GB). Free memory was 1.8 GB in the beginning and 1.5 GB in the end (delta: 252.5 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 123]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 123). Cancelled while BasicCegarLoop was constructing difference of abstraction (82355states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement), while ReachableStatesComputation was computing reachable states (48955 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 210.3s OverallTime, 14 OverallIterations, 8 TraceHistogramMax, 156.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6056 SDtfs, 54281 SDslu, 3002 SDs, 0 SdLazy, 97793 SolverSat, 17625 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 103.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19246 GetRequests, 18984 SyntacticMatches, 43 SemanticMatches, 219 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1702 ImplicationChecksByTransitivity, 12.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=104783occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 17.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 10454 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.5s SsaConstructionTime, 3.4s SatisfiabilityAnalysisTime, 25.0s InterpolantComputationTime, 16399 NumberOfCodeBlocks, 16399 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 25835 ConstructedInterpolants, 0 QuantifiedInterpolants, 50392326 SizeOfPredicates, 9 NumberOfNonLiveVariables, 13233 ConjunctsInSsa, 87 ConjunctsInUnsatCore, 42 InterpolantComputations, 12 PerfectInterpolantSequences, 26784/28801 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem18_label05_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_12-22-02-422.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem18_label05_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_12-22-02-422.csv Completed graceful shutdown