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/Problem15_label52_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 11:59:15,960 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 11:59:15,963 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 11:59:15,981 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 11:59:15,981 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 11:59:15,982 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 11:59:15,984 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 11:59:15,987 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 11:59:15,991 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 11:59:15,997 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 11:59:15,998 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 11:59:15,998 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 11:59:16,002 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 11:59:16,004 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 11:59:16,009 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 11:59:16,010 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 11:59:16,011 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 11:59:16,015 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 11:59:16,017 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 11:59:16,022 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 11:59:16,025 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 11:59:16,026 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 11:59:16,029 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 11:59:16,029 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 11:59:16,029 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 11:59:16,030 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 11:59:16,031 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 11:59:16,032 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 11:59:16,033 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 11:59:16,034 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 11:59:16,034 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 11:59:16,035 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-18 11:59:16,037 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 11:59:16,055 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 11:59:16,055 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 11:59:16,057 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 11:59:16,057 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 11:59:16,057 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 11:59:16,058 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 11:59:16,058 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 11:59:16,058 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 11:59:16,058 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 11:59:16,058 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 11:59:16,059 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 11:59:16,059 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 11:59:16,060 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 11:59:16,060 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 11:59:16,060 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 11:59:16,060 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 11:59:16,061 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 11:59:16,061 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 11:59:16,061 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 11:59:16,061 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 11:59:16,062 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 11:59:16,063 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 11:59:16,063 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 11:59:16,063 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 11:59:16,063 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:59:16,064 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 11:59:16,064 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 11:59:16,064 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 11:59:16,064 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 11:59:16,064 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 11:59:16,065 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 11:59:16,065 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 11:59:16,065 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 11:59:16,065 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 11:59:16,128 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 11:59:16,143 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 11:59:16,150 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 11:59:16,152 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 11:59:16,153 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 11:59:16,154 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label52_true-unreach-call.c [2018-09-18 11:59:16,498 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67bf1dfd6/80dfa5ae430948a688f57bf9f058b172/FLAGc02476e30 [2018-09-18 11:59:16,904 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 11:59:16,905 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label52_true-unreach-call.c [2018-09-18 11:59:16,927 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67bf1dfd6/80dfa5ae430948a688f57bf9f058b172/FLAGc02476e30 [2018-09-18 11:59:16,949 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/67bf1dfd6/80dfa5ae430948a688f57bf9f058b172 [2018-09-18 11:59:16,963 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 11:59:16,965 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 11:59:16,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 11:59:16,967 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 11:59:16,975 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 11:59:16,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:59:16" (1/1) ... [2018-09-18 11:59:16,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2872e34e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:59:16, skipping insertion in model container [2018-09-18 11:59:16,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:59:16" (1/1) ... [2018-09-18 11:59:16,992 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 11:59:17,860 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:59:17,881 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 11:59:18,129 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:59:18,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:59:18 WrapperNode [2018-09-18 11:59:18,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 11:59:18,265 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 11:59:18,265 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 11:59:18,265 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 11:59:18,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:59:18" (1/1) ... [2018-09-18 11:59:18,348 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:59:18" (1/1) ... [2018-09-18 11:59:18,536 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 11:59:18,536 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 11:59:18,536 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 11:59:18,537 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 11:59:18,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:59:18" (1/1) ... [2018-09-18 11:59:18,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:59:18" (1/1) ... [2018-09-18 11:59:19,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:59:18" (1/1) ... [2018-09-18 11:59:19,011 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:59:18" (1/1) ... [2018-09-18 11:59:19,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:59:18" (1/1) ... [2018-09-18 11:59:19,140 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:59:18" (1/1) ... [2018-09-18 11:59:19,203 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:59:18" (1/1) ... [2018-09-18 11:59:19,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 11:59:19,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 11:59:19,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 11:59:19,248 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 11:59:19,250 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:59:18" (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 11:59:19,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 11:59:19,328 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 11:59:19,328 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 11:59:19,328 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 11:59:19,328 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 11:59:19,329 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 11:59:19,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 11:59:19,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 11:59:19,329 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 11:59:19,329 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 11:59:26,391 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 11:59:26,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:59:26 BoogieIcfgContainer [2018-09-18 11:59:26,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 11:59:26,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 11:59:26,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 11:59:26,395 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 11:59:26,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 11:59:16" (1/3) ... [2018-09-18 11:59:26,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f7a73b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:59:26, skipping insertion in model container [2018-09-18 11:59:26,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:59:18" (2/3) ... [2018-09-18 11:59:26,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f7a73b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:59:26, skipping insertion in model container [2018-09-18 11:59:26,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:59:26" (3/3) ... [2018-09-18 11:59:26,400 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label52_true-unreach-call.c [2018-09-18 11:59:26,410 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 11:59:26,420 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 11:59:26,485 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 11:59:26,486 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 11:59:26,486 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 11:59:26,486 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 11:59:26,487 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 11:59:26,487 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 11:59:26,487 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 11:59:26,487 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 11:59:26,487 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 11:59:26,530 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-09-18 11:59:26,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2018-09-18 11:59:26,539 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:59:26,540 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, 1] [2018-09-18 11:59:26,541 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:59:26,547 INFO L82 PathProgramCache]: Analyzing trace with hash -1248930748, now seen corresponding path program 1 times [2018-09-18 11:59:26,549 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:59:26,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:59:26,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:59:26,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:59:26,600 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:59:26,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:59:27,067 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 11:59:27,070 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:59:27,070 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:59:27,070 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:59:27,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:59:27,090 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:59:27,091 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:59:27,093 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-09-18 11:59:36,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:59:36,343 INFO L93 Difference]: Finished difference Result 1501 states and 2761 transitions. [2018-09-18 11:59:36,344 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:59:36,345 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 46 [2018-09-18 11:59:36,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:59:36,372 INFO L225 Difference]: With dead ends: 1501 [2018-09-18 11:59:36,373 INFO L226 Difference]: Without dead ends: 1057 [2018-09-18 11:59:36,381 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:59:36,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2018-09-18 11:59:36,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 744. [2018-09-18 11:59:36,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-09-18 11:59:36,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1125 transitions. [2018-09-18 11:59:36,495 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1125 transitions. Word has length 46 [2018-09-18 11:59:36,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:59:36,496 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1125 transitions. [2018-09-18 11:59:36,496 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:59:36,497 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1125 transitions. [2018-09-18 11:59:36,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-09-18 11:59:36,504 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:59:36,504 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, 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] [2018-09-18 11:59:36,505 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:59:36,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1082195663, now seen corresponding path program 1 times [2018-09-18 11:59:36,505 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:59:36,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:59:36,506 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:59:36,507 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:59:36,507 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:59:36,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:59:36,737 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:59:36,738 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:59:36,738 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:59:36,738 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:59:36,740 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:59:36,740 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:59:36,741 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:59:36,741 INFO L87 Difference]: Start difference. First operand 744 states and 1125 transitions. Second operand 4 states. [2018-09-18 11:59:45,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:59:45,040 INFO L93 Difference]: Finished difference Result 2729 states and 4237 transitions. [2018-09-18 11:59:45,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:59:45,044 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 116 [2018-09-18 11:59:45,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:59:45,059 INFO L225 Difference]: With dead ends: 2729 [2018-09-18 11:59:45,059 INFO L226 Difference]: Without dead ends: 1991 [2018-09-18 11:59:45,065 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:59:45,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2018-09-18 11:59:45,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1989. [2018-09-18 11:59:45,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1989 states. [2018-09-18 11:59:45,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1989 states to 1989 states and 2772 transitions. [2018-09-18 11:59:45,169 INFO L78 Accepts]: Start accepts. Automaton has 1989 states and 2772 transitions. Word has length 116 [2018-09-18 11:59:45,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:59:45,170 INFO L480 AbstractCegarLoop]: Abstraction has 1989 states and 2772 transitions. [2018-09-18 11:59:45,170 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:59:45,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1989 states and 2772 transitions. [2018-09-18 11:59:45,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2018-09-18 11:59:45,194 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:59:45,194 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:59:45,195 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:59:45,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1707826587, now seen corresponding path program 1 times [2018-09-18 11:59:45,195 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:59:45,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:59:45,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:59:45,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:59:45,197 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:59:45,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:59:45,801 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 81 proven. 87 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-09-18 11:59:45,802 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:59:45,802 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 11:59:45,811 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:59:45,812 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:59:45,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:59:45,945 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:59:46,218 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-09-18 11:59:46,218 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:59:46,546 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-09-18 11:59:46,578 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 11:59:46,579 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2018-09-18 11:59:46,579 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:59:46,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:59:46,581 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:59:46,581 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-09-18 11:59:46,581 INFO L87 Difference]: Start difference. First operand 1989 states and 2772 transitions. Second operand 3 states. [2018-09-18 11:59:52,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:59:52,172 INFO L93 Difference]: Finished difference Result 4279 states and 6109 transitions. [2018-09-18 11:59:52,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:59:52,180 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 300 [2018-09-18 11:59:52,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:59:52,198 INFO L225 Difference]: With dead ends: 4279 [2018-09-18 11:59:52,199 INFO L226 Difference]: Without dead ends: 2296 [2018-09-18 11:59:52,208 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 602 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-09-18 11:59:52,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2296 states. [2018-09-18 11:59:52,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2296 to 2296. [2018-09-18 11:59:52,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2296 states. [2018-09-18 11:59:52,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2296 states to 2296 states and 3334 transitions. [2018-09-18 11:59:52,285 INFO L78 Accepts]: Start accepts. Automaton has 2296 states and 3334 transitions. Word has length 300 [2018-09-18 11:59:52,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:59:52,289 INFO L480 AbstractCegarLoop]: Abstraction has 2296 states and 3334 transitions. [2018-09-18 11:59:52,289 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:59:52,289 INFO L276 IsEmpty]: Start isEmpty. Operand 2296 states and 3334 transitions. [2018-09-18 11:59:52,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2018-09-18 11:59:52,297 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:59:52,298 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, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:59:52,298 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:59:52,298 INFO L82 PathProgramCache]: Analyzing trace with hash -1000144207, now seen corresponding path program 1 times [2018-09-18 11:59:52,298 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:59:52,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:59:52,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:59:52,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:59:52,300 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:59:52,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:59:53,035 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 125 proven. 222 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2018-09-18 11:59:53,036 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:59:53,036 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 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-09-18 11:59:53,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:59:53,055 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:59:53,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:59:53,156 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:59:53,329 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 243 proven. 2 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2018-09-18 11:59:53,329 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:59:53,851 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 127 proven. 226 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:59:53,884 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:59:53,885 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 4 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 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:59:53,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:59:53,915 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:59:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:59:54,116 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:59:54,320 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 243 proven. 2 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2018-09-18 11:59:54,320 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:59:55,218 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 127 proven. 226 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:59:55,222 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:59:55,223 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 8, 7, 8] total 16 [2018-09-18 11:59:55,223 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:59:55,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-18 11:59:55,224 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-18 11:59:55,225 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2018-09-18 11:59:55,225 INFO L87 Difference]: Start difference. First operand 2296 states and 3334 transitions. Second operand 11 states. [2018-09-18 12:00:07,700 WARN L178 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2018-09-18 12:00:31,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:00:31,429 INFO L93 Difference]: Finished difference Result 15858 states and 23840 transitions. [2018-09-18 12:00:31,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-09-18 12:00:31,429 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 303 [2018-09-18 12:00:31,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:00:31,511 INFO L225 Difference]: With dead ends: 15858 [2018-09-18 12:00:31,512 INFO L226 Difference]: Without dead ends: 13568 [2018-09-18 12:00:31,548 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1318 GetRequests, 1251 SyntacticMatches, 3 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1299 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=932, Invalid=3358, Unknown=0, NotChecked=0, Total=4290 [2018-09-18 12:00:31,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13568 states. [2018-09-18 12:00:31,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13568 to 13385. [2018-09-18 12:00:31,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13385 states. [2018-09-18 12:00:31,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13385 states to 13385 states and 17224 transitions. [2018-09-18 12:00:31,911 INFO L78 Accepts]: Start accepts. Automaton has 13385 states and 17224 transitions. Word has length 303 [2018-09-18 12:00:31,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:00:31,912 INFO L480 AbstractCegarLoop]: Abstraction has 13385 states and 17224 transitions. [2018-09-18 12:00:31,912 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-18 12:00:31,912 INFO L276 IsEmpty]: Start isEmpty. Operand 13385 states and 17224 transitions. [2018-09-18 12:00:31,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2018-09-18 12:00:31,922 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:00:31,923 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:00:31,923 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:00:31,923 INFO L82 PathProgramCache]: Analyzing trace with hash 1885866291, now seen corresponding path program 1 times [2018-09-18 12:00:31,924 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:00:31,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:00:31,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:00:31,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:00:31,925 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:00:31,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:00:33,005 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 141 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 12:00:33,005 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:00:33,005 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:00:33,013 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:00:33,013 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:00:33,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:00:33,114 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:00:33,560 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-09-18 12:00:33,560 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:00:34,644 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 78 proven. 76 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 12:00:34,666 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 12:00:34,666 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [10, 5] total 15 [2018-09-18 12:00:34,666 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:00:34,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 12:00:34,667 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 12:00:34,667 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2018-09-18 12:00:34,668 INFO L87 Difference]: Start difference. First operand 13385 states and 17224 transitions. Second operand 5 states. [2018-09-18 12:00:47,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:00:47,245 INFO L93 Difference]: Finished difference Result 31694 states and 41254 transitions. [2018-09-18 12:00:47,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 12:00:47,246 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 328 [2018-09-18 12:00:47,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:00:47,325 INFO L225 Difference]: With dead ends: 31694 [2018-09-18 12:00:47,325 INFO L226 Difference]: Without dead ends: 18315 [2018-09-18 12:00:47,382 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 672 GetRequests, 651 SyntacticMatches, 6 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2018-09-18 12:00:47,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18315 states. [2018-09-18 12:00:47,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18315 to 18161. [2018-09-18 12:00:47,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18161 states. [2018-09-18 12:00:47,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18161 states to 18161 states and 23236 transitions. [2018-09-18 12:00:47,768 INFO L78 Accepts]: Start accepts. Automaton has 18161 states and 23236 transitions. Word has length 328 [2018-09-18 12:00:47,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:00:47,768 INFO L480 AbstractCegarLoop]: Abstraction has 18161 states and 23236 transitions. [2018-09-18 12:00:47,768 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 12:00:47,769 INFO L276 IsEmpty]: Start isEmpty. Operand 18161 states and 23236 transitions. [2018-09-18 12:00:47,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2018-09-18 12:00:47,783 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:00:47,784 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:00:47,784 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:00:47,784 INFO L82 PathProgramCache]: Analyzing trace with hash 1006797980, now seen corresponding path program 1 times [2018-09-18 12:00:47,784 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:00:47,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:00:47,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:00:47,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:00:47,786 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:00:47,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:00:48,918 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 9 proven. 72 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-09-18 12:00:48,918 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:00:48,918 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 12:00:48,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:00:48,927 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:00:49,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:00:49,042 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:00:49,180 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 157 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:00:49,181 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:00:49,527 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 157 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:00:49,549 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:00:49,549 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 7 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 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 12:00:49,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:00:49,567 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:00:49,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:00:49,821 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:00:51,071 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 84 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:00:51,072 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:00:51,411 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 157 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:00:51,413 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 12:00:51,414 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5, 7, 5] total 19 [2018-09-18 12:00:51,414 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 12:00:51,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-18 12:00:51,418 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-18 12:00:51,418 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2018-09-18 12:00:51,418 INFO L87 Difference]: Start difference. First operand 18161 states and 23236 transitions. Second operand 10 states. [2018-09-18 12:01:32,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:01:32,067 INFO L93 Difference]: Finished difference Result 83915 states and 114101 transitions. [2018-09-18 12:01:32,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-09-18 12:01:32,067 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 402 [2018-09-18 12:01:32,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:01:32,285 INFO L225 Difference]: With dead ends: 83915 [2018-09-18 12:01:32,285 INFO L226 Difference]: Without dead ends: 66068 [2018-09-18 12:01:32,385 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1675 GetRequests, 1615 SyntacticMatches, 2 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 960 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=694, Invalid=2846, Unknown=0, NotChecked=0, Total=3540 [2018-09-18 12:01:32,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66068 states. [2018-09-18 12:01:33,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66068 to 64989. [2018-09-18 12:01:33,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64989 states. [2018-09-18 12:01:34,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64989 states to 64989 states and 83030 transitions. [2018-09-18 12:01:34,166 INFO L78 Accepts]: Start accepts. Automaton has 64989 states and 83030 transitions. Word has length 402 [2018-09-18 12:01:34,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:01:34,167 INFO L480 AbstractCegarLoop]: Abstraction has 64989 states and 83030 transitions. [2018-09-18 12:01:34,167 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-18 12:01:34,167 INFO L276 IsEmpty]: Start isEmpty. Operand 64989 states and 83030 transitions. [2018-09-18 12:01:34,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 524 [2018-09-18 12:01:34,207 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:01:34,207 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:01:34,208 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:01:34,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1857135591, now seen corresponding path program 1 times [2018-09-18 12:01:34,208 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:01:34,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:01:34,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:01:34,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:01:34,209 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:01:34,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:01:35,662 WARN L178 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 22 [2018-09-18 12:01:35,918 WARN L178 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2018-09-18 12:01:36,369 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 512 proven. 61 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2018-09-18 12:01:36,370 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:01:36,370 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 12:01:36,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:01:36,378 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:01:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:01:36,523 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:01:37,195 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 488 proven. 41 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2018-09-18 12:01:37,195 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:01:37,586 WARN L178 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-09-18 12:01:38,359 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 171 proven. 428 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-09-18 12:01:38,381 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:01:38,381 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 12:01:38,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:01:38,400 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:01:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:01:38,744 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:01:39,420 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 438 proven. 41 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2018-09-18 12:01:39,421 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:01:39,910 WARN L178 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-09-18 12:01:40,503 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 171 proven. 428 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2018-09-18 12:01:40,505 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 12:01:40,506 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9, 8, 9] total 27 [2018-09-18 12:01:40,506 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 12:01:40,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-09-18 12:01:40,508 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-09-18 12:01:40,508 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702 [2018-09-18 12:01:40,508 INFO L87 Difference]: Start difference. First operand 64989 states and 83030 transitions. Second operand 17 states. [2018-09-18 12:01:40,651 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2018-09-18 12:01:49,216 WARN L178 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 33 [2018-09-18 12:01:50,768 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 35 [2018-09-18 12:02:10,270 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2018-09-18 12:02:16,527 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2018-09-18 12:02:17,686 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2018-09-18 12:02:25,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:02:25,358 INFO L93 Difference]: Finished difference Result 156251 states and 219937 transitions. [2018-09-18 12:02:25,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2018-09-18 12:02:25,358 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 523 [2018-09-18 12:02:25,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:02:25,808 INFO L225 Difference]: With dead ends: 156251 [2018-09-18 12:02:25,808 INFO L226 Difference]: Without dead ends: 83806 [2018-09-18 12:02:26,117 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2291 GetRequests, 2162 SyntacticMatches, 7 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5589 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=2707, Invalid=12545, Unknown=0, NotChecked=0, Total=15252 [2018-09-18 12:02:26,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83806 states. [2018-09-18 12:02:28,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83806 to 76152. [2018-09-18 12:02:28,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76152 states. [2018-09-18 12:02:28,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76152 states to 76152 states and 97857 transitions. [2018-09-18 12:02:28,366 INFO L78 Accepts]: Start accepts. Automaton has 76152 states and 97857 transitions. Word has length 523 [2018-09-18 12:02:28,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:02:28,367 INFO L480 AbstractCegarLoop]: Abstraction has 76152 states and 97857 transitions. [2018-09-18 12:02:28,367 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-09-18 12:02:28,367 INFO L276 IsEmpty]: Start isEmpty. Operand 76152 states and 97857 transitions. [2018-09-18 12:02:28,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 589 [2018-09-18 12:02:28,400 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:02:28,401 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, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 12:02:28,401 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:02:28,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1451620469, now seen corresponding path program 1 times [2018-09-18 12:02:28,402 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:02:28,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:02:28,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:02:28,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:02:28,404 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:02:28,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:02:29,250 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-09-18 12:02:30,385 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 125 proven. 366 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 12:02:30,385 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:02:30,385 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 12:02:30,393 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:02:30,393 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:02:30,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:02:30,558 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:02:46,051 WARN L178 SmtUtils]: Spent 15.22 s on a formula simplification. DAG size of input: 116 DAG size of output: 50 [2018-09-18 12:02:47,182 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 380 proven. 116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:02:47,182 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:02:47,518 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 31 [2018-09-18 12:02:48,148 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 380 proven. 116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:02:48,169 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:02:48,169 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 11 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 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 12:02:48,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:02:48,188 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:02:48,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:02:48,569 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:03:12,900 WARN L178 SmtUtils]: Spent 24.11 s on a formula simplification that was a NOOP. DAG size: 59 [2018-09-18 12:03:21,432 WARN L178 SmtUtils]: Spent 6.45 s on a formula simplification. DAG size of input: 60 DAG size of output: 31 [2018-09-18 12:03:21,906 INFO L134 CoverageAnalysis]: Checked inductivity of 496 backedges. 345 proven. 111 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-09-18 12:03:21,907 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:03:22,488 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 30 Received shutdown request... [2018-09-18 12:03:24,741 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-09-18 12:03:24,942 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 12:03:24,943 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 12:03:24,948 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 12:03:24,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 12:03:24 BoogieIcfgContainer [2018-09-18 12:03:24,948 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 12:03:24,949 INFO L168 Benchmark]: Toolchain (without parser) took 247986.23 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 1.7 GB in the end (delta: -324.5 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-09-18 12:03:24,950 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-18 12:03:24,951 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1297.72 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. [2018-09-18 12:03:24,952 INFO L168 Benchmark]: Boogie Procedure Inliner took 271.31 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-18 12:03:24,952 INFO L168 Benchmark]: Boogie Preprocessor took 710.54 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 899.7 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. [2018-09-18 12:03:24,953 INFO L168 Benchmark]: RCFGBuilder took 7144.53 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 297.8 MB). Peak memory consumption was 297.8 MB. Max. memory is 7.1 GB. [2018-09-18 12:03:24,954 INFO L168 Benchmark]: TraceAbstraction took 238556.26 ms. Allocated memory was 2.4 GB in the beginning and 3.9 GB in the end (delta: 1.5 GB). Free memory was 2.0 GB in the beginning and 1.7 GB in the end (delta: 292.4 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-09-18 12:03:24,959 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1297.72 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 271.31 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 710.54 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 899.7 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7144.53 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 297.8 MB). Peak memory consumption was 297.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 238556.26 ms. Allocated memory was 2.4 GB in the beginning and 3.9 GB in the end (delta: 1.5 GB). Free memory was 2.0 GB in the beginning and 1.7 GB in the end (delta: 292.4 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 124]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 124). Cancelled while BasicCegarLoop was analyzing trace of length 589 with TraceHistMax 4, while TraceCheckSpWp was constructing backward predicates, while PredicateComparison was comparing new predicate (quantified with 1quantifier alternations) to 30 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 238.4s OverallTime, 8 OverallIterations, 5 TraceHistogramMax, 158.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1800 SDtfs, 24586 SDslu, 4750 SDs, 0 SdLazy, 52152 SolverSat, 10746 SolverUnsat, 9 SolverUnknown, 0 SolverNotchecked, 132.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6575 GetRequests, 6288 SyntacticMatches, 19 SemanticMatches, 268 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7922 ImplicationChecksByTransitivity, 14.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76152occurred in iteration=7, 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: 5.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 9385 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 14.4s InterpolantComputationTime, 5102 NumberOfCodeBlocks, 5102 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 8163 ConstructedInterpolants, 0 QuantifiedInterpolants, 19733771 SizeOfPredicates, 25 NumberOfNonLiveVariables, 4758 ConjunctsInSsa, 97 ConjunctsInUnsatCore, 23 InterpolantComputations, 5 PerfectInterpolantSequences, 5067/7073 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/Problem15_label52_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_12-03-24-974.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label52_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_12-03-24-974.csv Completed graceful shutdown