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/Problem17_label51_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 12:18:05,814 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 12:18:05,816 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 12:18:05,829 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 12:18:05,829 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 12:18:05,830 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 12:18:05,832 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 12:18:05,834 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 12:18:05,836 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 12:18:05,837 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 12:18:05,838 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 12:18:05,839 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 12:18:05,840 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 12:18:05,841 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 12:18:05,842 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 12:18:05,843 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 12:18:05,844 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 12:18:05,846 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 12:18:05,851 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 12:18:05,852 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 12:18:05,854 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 12:18:05,857 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 12:18:05,863 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 12:18:05,863 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 12:18:05,863 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 12:18:05,865 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 12:18:05,866 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 12:18:05,867 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 12:18:05,868 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 12:18:05,869 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 12:18:05,872 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 12:18:05,873 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-18 12:18:05,879 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 12:18:05,908 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 12:18:05,908 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 12:18:05,909 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 12:18:05,909 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 12:18:05,910 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 12:18:05,910 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 12:18:05,911 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 12:18:05,911 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 12:18:05,911 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 12:18:05,911 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 12:18:05,911 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 12:18:05,912 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 12:18:05,912 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 12:18:05,913 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 12:18:05,913 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 12:18:05,913 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 12:18:05,913 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 12:18:05,913 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 12:18:05,914 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 12:18:05,914 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 12:18:05,914 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 12:18:05,914 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 12:18:05,915 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 12:18:05,915 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 12:18:05,915 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 12:18:05,915 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 12:18:05,916 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 12:18:05,916 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 12:18:05,916 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 12:18:05,916 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 12:18:05,917 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 12:18:05,917 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 12:18:05,917 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 12:18:05,917 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 12:18:05,981 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 12:18:05,997 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 12:18:06,002 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 12:18:06,003 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 12:18:06,005 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 12:18:06,006 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label51_true-unreach-call.c [2018-09-18 12:18:06,357 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48e9c1f33/e0b2a4980c0340c9b33272aea267dc3c/FLAG065b9b42b [2018-09-18 12:18:06,854 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 12:18:06,855 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label51_true-unreach-call.c [2018-09-18 12:18:06,884 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48e9c1f33/e0b2a4980c0340c9b33272aea267dc3c/FLAG065b9b42b [2018-09-18 12:18:06,906 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48e9c1f33/e0b2a4980c0340c9b33272aea267dc3c [2018-09-18 12:18:06,915 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 12:18:06,919 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 12:18:06,920 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 12:18:06,920 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 12:18:06,927 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 12:18:06,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:18:06" (1/1) ... [2018-09-18 12:18:06,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38dc6aa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:18:06, skipping insertion in model container [2018-09-18 12:18:06,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:18:06" (1/1) ... [2018-09-18 12:18:06,943 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 12:18:07,959 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 12:18:07,979 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 12:18:08,527 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 12:18:08,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:18:08 WrapperNode [2018-09-18 12:18:08,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 12:18:08,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 12:18:08,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 12:18:08,736 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 12:18:08,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:18:08" (1/1) ... [2018-09-18 12:18:08,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:18:08" (1/1) ... [2018-09-18 12:18:09,507 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 12:18:09,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 12:18:09,508 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 12:18:09,508 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 12:18:09,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:18:08" (1/1) ... [2018-09-18 12:18:09,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:18:08" (1/1) ... [2018-09-18 12:18:09,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:18:08" (1/1) ... [2018-09-18 12:18:09,550 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:18:08" (1/1) ... [2018-09-18 12:18:09,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:18:08" (1/1) ... [2018-09-18 12:18:09,703 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:18:08" (1/1) ... [2018-09-18 12:18:09,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:18:08" (1/1) ... [2018-09-18 12:18:09,812 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 12:18:09,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 12:18:09,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 12:18:09,813 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 12:18:09,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:18:08" (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 12:18:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 12:18:09,889 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 12:18:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 12:18:09,889 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 12:18:09,889 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 12:18:09,890 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 12:18:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 12:18:09,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 12:18:09,890 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 12:18:09,890 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 12:18:23,513 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 12:18:23,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:18:23 BoogieIcfgContainer [2018-09-18 12:18:23,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 12:18:23,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 12:18:23,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 12:18:23,519 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 12:18:23,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 12:18:06" (1/3) ... [2018-09-18 12:18:23,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63fe8b56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:18:23, skipping insertion in model container [2018-09-18 12:18:23,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:18:08" (2/3) ... [2018-09-18 12:18:23,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63fe8b56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:18:23, skipping insertion in model container [2018-09-18 12:18:23,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:18:23" (3/3) ... [2018-09-18 12:18:23,522 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label51_true-unreach-call.c [2018-09-18 12:18:23,530 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 12:18:23,538 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 12:18:23,601 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 12:18:23,602 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 12:18:23,602 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 12:18:23,602 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 12:18:23,603 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 12:18:23,603 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 12:18:23,603 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 12:18:23,603 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 12:18:23,603 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 12:18:23,657 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-09-18 12:18:23,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-18 12:18:23,669 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:18:23,670 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] [2018-09-18 12:18:23,672 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:18:23,677 INFO L82 PathProgramCache]: Analyzing trace with hash -2022037956, now seen corresponding path program 1 times [2018-09-18 12:18:23,679 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:18:23,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:18:23,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:18:23,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:18:23,735 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:18:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:18:24,249 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 12:18:24,254 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:18:24,254 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 12:18:24,254 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:18:24,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 12:18:24,278 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 12:18:24,279 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 12:18:24,282 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-09-18 12:18:35,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:18:35,057 INFO L93 Difference]: Finished difference Result 2164 states and 4009 transitions. [2018-09-18 12:18:35,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 12:18:35,059 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2018-09-18 12:18:35,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:18:35,096 INFO L225 Difference]: With dead ends: 2164 [2018-09-18 12:18:35,097 INFO L226 Difference]: Without dead ends: 1554 [2018-09-18 12:18:35,106 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 12:18:35,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1554 states. [2018-09-18 12:18:35,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1554 to 1052. [2018-09-18 12:18:35,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1052 states. [2018-09-18 12:18:35,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1882 transitions. [2018-09-18 12:18:35,281 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1882 transitions. Word has length 44 [2018-09-18 12:18:35,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:18:35,282 INFO L480 AbstractCegarLoop]: Abstraction has 1052 states and 1882 transitions. [2018-09-18 12:18:35,282 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 12:18:35,283 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1882 transitions. [2018-09-18 12:18:35,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2018-09-18 12:18:35,295 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:18:35,295 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:18:35,296 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:18:35,296 INFO L82 PathProgramCache]: Analyzing trace with hash 760811562, now seen corresponding path program 1 times [2018-09-18 12:18:35,296 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:18:35,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:18:35,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:18:35,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:18:35,300 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:18:35,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:18:35,681 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:18:35,681 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:18:35,682 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 12:18:35,682 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:18:35,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 12:18:35,684 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 12:18:35,684 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 12:18:35,685 INFO L87 Difference]: Start difference. First operand 1052 states and 1882 transitions. Second operand 5 states. [2018-09-18 12:18:44,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:18:44,737 INFO L93 Difference]: Finished difference Result 3031 states and 5537 transitions. [2018-09-18 12:18:44,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 12:18:44,737 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 116 [2018-09-18 12:18:44,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:18:44,751 INFO L225 Difference]: With dead ends: 3031 [2018-09-18 12:18:44,752 INFO L226 Difference]: Without dead ends: 1985 [2018-09-18 12:18:44,756 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-18 12:18:44,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1985 states. [2018-09-18 12:18:44,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1985 to 1959. [2018-09-18 12:18:44,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1959 states. [2018-09-18 12:18:44,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 3239 transitions. [2018-09-18 12:18:44,830 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 3239 transitions. Word has length 116 [2018-09-18 12:18:44,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:18:44,830 INFO L480 AbstractCegarLoop]: Abstraction has 1959 states and 3239 transitions. [2018-09-18 12:18:44,830 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 12:18:44,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 3239 transitions. [2018-09-18 12:18:44,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-09-18 12:18:44,835 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:18:44,835 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:18:44,836 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:18:44,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1743388018, now seen corresponding path program 1 times [2018-09-18 12:18:44,836 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:18:44,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:18:44,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:18:44,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:18:44,837 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:18:44,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:18:45,126 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:18:45,127 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:18:45,127 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 12:18:45,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:18:45,144 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:18:45,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:18:45,264 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:18:49,909 WARN L178 SmtUtils]: Spent 4.12 s on a formula simplification that was a NOOP. DAG size: 42 [2018-09-18 12:18:54,066 WARN L178 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 42 DAG size of output: 21 [2018-09-18 12:18:54,238 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:18:54,238 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:18:55,254 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 13 [2018-09-18 12:18:56,169 WARN L178 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 22 [2018-09-18 12:18:56,567 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:18:56,596 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 12:18:56,597 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 15 [2018-09-18 12:18:56,597 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:18:56,598 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:18:56,598 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:18:56,598 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=164, Unknown=1, NotChecked=0, Total=210 [2018-09-18 12:18:56,599 INFO L87 Difference]: Start difference. First operand 1959 states and 3239 transitions. Second operand 6 states. [2018-09-18 12:19:25,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:19:25,862 INFO L93 Difference]: Finished difference Result 7528 states and 12935 transitions. [2018-09-18 12:19:25,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-18 12:19:25,864 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 119 [2018-09-18 12:19:25,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:19:25,904 INFO L225 Difference]: With dead ends: 7528 [2018-09-18 12:19:25,905 INFO L226 Difference]: Without dead ends: 5575 [2018-09-18 12:19:25,920 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 232 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=45, Invalid=164, Unknown=1, NotChecked=0, Total=210 [2018-09-18 12:19:25,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5575 states. [2018-09-18 12:19:26,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5575 to 5565. [2018-09-18 12:19:26,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5565 states. [2018-09-18 12:19:26,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5565 states to 5565 states and 9386 transitions. [2018-09-18 12:19:26,122 INFO L78 Accepts]: Start accepts. Automaton has 5565 states and 9386 transitions. Word has length 119 [2018-09-18 12:19:26,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:19:26,123 INFO L480 AbstractCegarLoop]: Abstraction has 5565 states and 9386 transitions. [2018-09-18 12:19:26,123 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:19:26,123 INFO L276 IsEmpty]: Start isEmpty. Operand 5565 states and 9386 transitions. [2018-09-18 12:19:26,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-09-18 12:19:26,133 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:19:26,133 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:19:26,133 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:19:26,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1915585398, now seen corresponding path program 1 times [2018-09-18 12:19:26,134 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:19:26,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:19:26,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:19:26,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:19:26,135 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:19:26,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:19:26,482 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:19:27,164 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:19:27,164 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:19:27,164 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) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:19:27,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:19:27,186 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:19:27,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:19:27,262 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:19:27,433 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:19:27,434 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:19:27,595 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:19:27,628 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 12:19:27,628 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-09-18 12:19:27,628 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:19:27,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 12:19:27,629 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 12:19:27,629 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-09-18 12:19:27,630 INFO L87 Difference]: Start difference. First operand 5565 states and 9386 transitions. Second operand 3 states. [2018-09-18 12:19:34,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:19:34,121 INFO L93 Difference]: Finished difference Result 13748 states and 23072 transitions. [2018-09-18 12:19:34,122 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 12:19:34,122 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2018-09-18 12:19:34,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:19:34,163 INFO L225 Difference]: With dead ends: 13748 [2018-09-18 12:19:34,163 INFO L226 Difference]: Without dead ends: 8189 [2018-09-18 12:19:34,200 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 263 SyntacticMatches, 4 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-09-18 12:19:34,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8189 states. [2018-09-18 12:19:34,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8189 to 8188. [2018-09-18 12:19:34,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8188 states. [2018-09-18 12:19:34,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8188 states to 8188 states and 12809 transitions. [2018-09-18 12:19:34,399 INFO L78 Accepts]: Start accepts. Automaton has 8188 states and 12809 transitions. Word has length 132 [2018-09-18 12:19:34,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:19:34,400 INFO L480 AbstractCegarLoop]: Abstraction has 8188 states and 12809 transitions. [2018-09-18 12:19:34,400 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 12:19:34,400 INFO L276 IsEmpty]: Start isEmpty. Operand 8188 states and 12809 transitions. [2018-09-18 12:19:34,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2018-09-18 12:19:34,408 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:19:34,408 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 12:19:34,409 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:19:34,409 INFO L82 PathProgramCache]: Analyzing trace with hash 806945292, now seen corresponding path program 1 times [2018-09-18 12:19:34,409 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:19:34,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:19:34,410 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:19:34,410 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:19:34,411 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:19:34,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:19:34,708 WARN L178 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:19:34,895 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 75 proven. 7 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-09-18 12:19:34,896 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:19:34,896 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 12:19:34,903 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:19:34,904 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:19:34,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:19:34,986 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:19:35,362 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 147 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:19:35,362 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:19:35,600 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 147 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:19:35,621 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:19:35,621 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 12:19:35,637 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:19:35,637 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:19:35,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:19:35,796 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:19:36,034 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 75 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-09-18 12:19:36,034 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:19:36,290 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-09-18 12:19:36,292 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-09-18 12:19:36,292 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5, 5, 5] total 12 [2018-09-18 12:19:36,292 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:19:36,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 12:19:36,295 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 12:19:36,295 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-18 12:19:36,296 INFO L87 Difference]: Start difference. First operand 8188 states and 12809 transitions. Second operand 5 states. [2018-09-18 12:19:43,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:19:43,791 INFO L93 Difference]: Finished difference Result 16431 states and 25770 transitions. [2018-09-18 12:19:43,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-18 12:19:43,791 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 217 [2018-09-18 12:19:43,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:19:43,827 INFO L225 Difference]: With dead ends: 16431 [2018-09-18 12:19:43,827 INFO L226 Difference]: Without dead ends: 8249 [2018-09-18 12:19:43,849 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 876 GetRequests, 858 SyntacticMatches, 7 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-09-18 12:19:43,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8249 states. [2018-09-18 12:19:44,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8249 to 8247. [2018-09-18 12:19:44,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8247 states. [2018-09-18 12:19:44,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8247 states to 8247 states and 10762 transitions. [2018-09-18 12:19:44,048 INFO L78 Accepts]: Start accepts. Automaton has 8247 states and 10762 transitions. Word has length 217 [2018-09-18 12:19:44,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:19:44,049 INFO L480 AbstractCegarLoop]: Abstraction has 8247 states and 10762 transitions. [2018-09-18 12:19:44,049 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 12:19:44,049 INFO L276 IsEmpty]: Start isEmpty. Operand 8247 states and 10762 transitions. [2018-09-18 12:19:44,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2018-09-18 12:19:44,062 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:19:44,063 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:19:44,063 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:19:44,065 INFO L82 PathProgramCache]: Analyzing trace with hash 559446539, now seen corresponding path program 1 times [2018-09-18 12:19:44,065 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:19:44,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:19:44,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:19:44,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:19:44,067 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:19:44,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:19:44,383 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-09-18 12:19:44,383 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:19:44,383 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 12:19:44,383 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:19:44,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 12:19:44,384 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 12:19:44,385 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 12:19:44,386 INFO L87 Difference]: Start difference. First operand 8247 states and 10762 transitions. Second operand 3 states. [2018-09-18 12:19:49,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:19:49,815 INFO L93 Difference]: Finished difference Result 23565 states and 31446 transitions. [2018-09-18 12:19:49,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 12:19:49,819 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 298 [2018-09-18 12:19:49,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:19:49,865 INFO L225 Difference]: With dead ends: 23565 [2018-09-18 12:19:49,865 INFO L226 Difference]: Without dead ends: 15324 [2018-09-18 12:19:49,892 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 12:19:49,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15324 states. [2018-09-18 12:19:50,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15324 to 15321. [2018-09-18 12:19:50,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15321 states. [2018-09-18 12:19:50,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15321 states to 15321 states and 19062 transitions. [2018-09-18 12:19:50,204 INFO L78 Accepts]: Start accepts. Automaton has 15321 states and 19062 transitions. Word has length 298 [2018-09-18 12:19:50,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:19:50,205 INFO L480 AbstractCegarLoop]: Abstraction has 15321 states and 19062 transitions. [2018-09-18 12:19:50,205 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 12:19:50,205 INFO L276 IsEmpty]: Start isEmpty. Operand 15321 states and 19062 transitions. [2018-09-18 12:19:50,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2018-09-18 12:19:50,229 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:19:50,230 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:19:50,230 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:19:50,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1770846151, now seen corresponding path program 1 times [2018-09-18 12:19:50,231 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:19:50,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:19:50,232 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:19:50,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:19:50,232 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:19:50,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:19:50,817 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:19:50,817 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:19:50,817 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 12:19:50,827 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:19:50,827 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:19:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:19:50,947 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:19:51,154 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 4 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:19:51,154 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:19:51,819 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:19:51,839 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 12:19:51,840 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 11 [2018-09-18 12:19:51,840 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:19:51,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:19:51,841 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:19:51,841 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-09-18 12:19:51,843 INFO L87 Difference]: Start difference. First operand 15321 states and 19062 transitions. Second operand 6 states. [2018-09-18 12:20:01,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:20:01,578 INFO L93 Difference]: Finished difference Result 36338 states and 45460 transitions. [2018-09-18 12:20:01,579 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-18 12:20:01,579 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 392 [2018-09-18 12:20:01,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:20:01,646 INFO L225 Difference]: With dead ends: 36338 [2018-09-18 12:20:01,646 INFO L226 Difference]: Without dead ends: 21023 [2018-09-18 12:20:01,691 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 794 GetRequests, 783 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2018-09-18 12:20:01,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21023 states. [2018-09-18 12:20:02,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21023 to 19711. [2018-09-18 12:20:02,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19711 states. [2018-09-18 12:20:02,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19711 states to 19711 states and 24464 transitions. [2018-09-18 12:20:02,130 INFO L78 Accepts]: Start accepts. Automaton has 19711 states and 24464 transitions. Word has length 392 [2018-09-18 12:20:02,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:20:02,132 INFO L480 AbstractCegarLoop]: Abstraction has 19711 states and 24464 transitions. [2018-09-18 12:20:02,133 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:20:02,133 INFO L276 IsEmpty]: Start isEmpty. Operand 19711 states and 24464 transitions. [2018-09-18 12:20:02,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2018-09-18 12:20:02,167 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:20:02,167 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:20:02,167 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:20:02,168 INFO L82 PathProgramCache]: Analyzing trace with hash -440656335, now seen corresponding path program 1 times [2018-09-18 12:20:02,168 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:20:02,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:20:02,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:20:02,169 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:20:02,170 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:20:02,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:20:03,004 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 308 proven. 2 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-09-18 12:20:03,004 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:20:03,005 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 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 12:20:03,018 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:20:03,019 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:20:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:20:03,157 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:20:03,393 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 308 proven. 2 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-09-18 12:20:03,393 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:20:03,791 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 308 proven. 2 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-09-18 12:20:03,813 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:20:03,813 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 8 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 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 12:20:03,830 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:20:03,831 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:20:04,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:20:04,095 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:20:04,186 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 308 proven. 2 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-09-18 12:20:04,186 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:20:04,351 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 308 proven. 2 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-09-18 12:20:04,354 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 12:20:04,355 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5] total 8 [2018-09-18 12:20:04,356 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 12:20:04,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:20:04,357 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:20:04,358 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-09-18 12:20:04,358 INFO L87 Difference]: Start difference. First operand 19711 states and 24464 transitions. Second operand 6 states. [2018-09-18 12:20:14,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:20:14,907 INFO L93 Difference]: Finished difference Result 52614 states and 68937 transitions. [2018-09-18 12:20:14,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-18 12:20:14,914 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 427 [2018-09-18 12:20:14,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:20:15,055 INFO L225 Difference]: With dead ends: 52614 [2018-09-18 12:20:15,055 INFO L226 Difference]: Without dead ends: 32909 [2018-09-18 12:20:15,124 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1721 GetRequests, 1708 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2018-09-18 12:20:15,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32909 states. [2018-09-18 12:20:15,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32909 to 29363. [2018-09-18 12:20:15,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29363 states. [2018-09-18 12:20:15,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29363 states to 29363 states and 35323 transitions. [2018-09-18 12:20:15,806 INFO L78 Accepts]: Start accepts. Automaton has 29363 states and 35323 transitions. Word has length 427 [2018-09-18 12:20:15,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:20:15,807 INFO L480 AbstractCegarLoop]: Abstraction has 29363 states and 35323 transitions. [2018-09-18 12:20:15,807 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:20:15,808 INFO L276 IsEmpty]: Start isEmpty. Operand 29363 states and 35323 transitions. [2018-09-18 12:20:15,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2018-09-18 12:20:15,886 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:20:15,887 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:20:15,887 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:20:15,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1817005450, now seen corresponding path program 1 times [2018-09-18 12:20:15,887 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:20:15,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:20:15,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:20:15,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:20:15,889 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:20:15,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:20:16,510 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 121 proven. 159 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2018-09-18 12:20:16,510 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:20:16,510 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:20:16,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:20:16,518 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:20:16,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:20:16,667 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:20:17,073 WARN L178 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 17 [2018-09-18 12:20:17,458 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 245 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2018-09-18 12:20:17,458 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:20:28,232 WARN L178 SmtUtils]: Spent 8.38 s on a formula simplification. DAG size of input: 37 DAG size of output: 25 [2018-09-18 12:20:28,776 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 121 proven. 231 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 12:20:28,798 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:20:28,798 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 10 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 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 12:20:28,817 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:20:28,817 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:20:29,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:20:29,135 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:20:29,399 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 245 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2018-09-18 12:20:29,399 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:20:32,486 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 121 proven. 231 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 12:20:32,488 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 12:20:32,488 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8, 7, 8] total 14 [2018-09-18 12:20:32,488 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 12:20:32,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 12:20:32,490 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 12:20:32,491 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=126, Unknown=1, NotChecked=0, Total=182 [2018-09-18 12:20:32,491 INFO L87 Difference]: Start difference. First operand 29363 states and 35323 transitions. Second operand 9 states. [2018-09-18 12:20:53,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:20:53,968 INFO L93 Difference]: Finished difference Result 82688 states and 104012 transitions. [2018-09-18 12:20:53,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-18 12:20:53,968 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 500 [2018-09-18 12:20:53,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:20:54,168 INFO L225 Difference]: With dead ends: 82688 [2018-09-18 12:20:54,169 INFO L226 Difference]: Without dead ends: 53391 [2018-09-18 12:20:54,270 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2028 GetRequests, 1998 SyntacticMatches, 7 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=181, Invalid=418, Unknown=1, NotChecked=0, Total=600 [2018-09-18 12:20:54,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53391 states. [2018-09-18 12:20:55,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53391 to 43402. [2018-09-18 12:20:55,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43402 states. [2018-09-18 12:20:55,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43402 states to 43402 states and 51765 transitions. [2018-09-18 12:20:55,241 INFO L78 Accepts]: Start accepts. Automaton has 43402 states and 51765 transitions. Word has length 500 [2018-09-18 12:20:55,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:20:55,242 INFO L480 AbstractCegarLoop]: Abstraction has 43402 states and 51765 transitions. [2018-09-18 12:20:55,242 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 12:20:55,242 INFO L276 IsEmpty]: Start isEmpty. Operand 43402 states and 51765 transitions. [2018-09-18 12:20:55,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2018-09-18 12:20:55,287 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:20:55,287 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:20:55,287 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:20:55,288 INFO L82 PathProgramCache]: Analyzing trace with hash -1152984987, now seen corresponding path program 1 times [2018-09-18 12:20:55,288 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:20:55,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:20:55,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:20:55,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:20:55,289 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:20:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:20:56,063 WARN L178 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 15 [2018-09-18 12:20:56,506 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 119 proven. 188 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-09-18 12:20:56,507 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:20:56,507 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 12:20:56,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:20:56,515 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:20:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:20:56,673 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:20:56,930 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2018-09-18 12:20:56,930 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:20:57,162 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2018-09-18 12:20:58,182 INFO L134 CoverageAnalysis]: Checked inductivity of 389 backedges. 111 proven. 184 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-09-18 12:20:58,202 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 12:20:58,203 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 5] total 12 [2018-09-18 12:20:58,203 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:20:58,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 12:20:58,205 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 12:20:58,205 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2018-09-18 12:20:58,205 INFO L87 Difference]: Start difference. First operand 43402 states and 51765 transitions. Second operand 5 states. [2018-09-18 12:21:07,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:21:07,057 INFO L93 Difference]: Finished difference Result 96395 states and 115240 transitions. [2018-09-18 12:21:07,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 12:21:07,058 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 527 [2018-09-18 12:21:07,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:21:07,198 INFO L225 Difference]: With dead ends: 96395 [2018-09-18 12:21:07,198 INFO L226 Difference]: Without dead ends: 51349 [2018-09-18 12:21:07,275 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1065 GetRequests, 1051 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2018-09-18 12:21:07,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51349 states. [2018-09-18 12:21:07,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51349 to 47384. [2018-09-18 12:21:07,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47384 states. [2018-09-18 12:21:08,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47384 states to 47384 states and 56038 transitions. [2018-09-18 12:21:08,037 INFO L78 Accepts]: Start accepts. Automaton has 47384 states and 56038 transitions. Word has length 527 [2018-09-18 12:21:08,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:21:08,037 INFO L480 AbstractCegarLoop]: Abstraction has 47384 states and 56038 transitions. [2018-09-18 12:21:08,037 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 12:21:08,038 INFO L276 IsEmpty]: Start isEmpty. Operand 47384 states and 56038 transitions. [2018-09-18 12:21:08,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2018-09-18 12:21:08,078 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:21:08,079 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:21:08,079 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:21:08,080 INFO L82 PathProgramCache]: Analyzing trace with hash -576170641, now seen corresponding path program 1 times [2018-09-18 12:21:08,080 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:21:08,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:21:08,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:21:08,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:21:08,081 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:21:08,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:21:08,903 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2018-09-18 12:21:08,903 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:21:08,903 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 12:21:08,903 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:21:08,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 12:21:08,904 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 12:21:08,904 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 12:21:08,904 INFO L87 Difference]: Start difference. First operand 47384 states and 56038 transitions. Second operand 4 states. [2018-09-18 12:21:18,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:21:18,903 INFO L93 Difference]: Finished difference Result 129029 states and 155601 transitions. [2018-09-18 12:21:18,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 12:21:18,903 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 602 [2018-09-18 12:21:18,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:21:19,095 INFO L225 Difference]: With dead ends: 129029 [2018-09-18 12:21:19,095 INFO L226 Difference]: Without dead ends: 81651 [2018-09-18 12:21:19,211 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 12:21:19,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81651 states. [2018-09-18 12:21:20,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81651 to 76567. [2018-09-18 12:21:20,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76567 states. [2018-09-18 12:21:20,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76567 states to 76567 states and 89779 transitions. [2018-09-18 12:21:20,540 INFO L78 Accepts]: Start accepts. Automaton has 76567 states and 89779 transitions. Word has length 602 [2018-09-18 12:21:20,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:21:20,542 INFO L480 AbstractCegarLoop]: Abstraction has 76567 states and 89779 transitions. [2018-09-18 12:21:20,542 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 12:21:20,542 INFO L276 IsEmpty]: Start isEmpty. Operand 76567 states and 89779 transitions. [2018-09-18 12:21:20,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 683 [2018-09-18 12:21:20,645 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:21:20,646 INFO L376 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 12:21:20,646 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:21:20,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1974119900, now seen corresponding path program 1 times [2018-09-18 12:21:20,648 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:21:20,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:21:20,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:21:20,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:21:20,649 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:21:20,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:21:21,552 INFO L134 CoverageAnalysis]: Checked inductivity of 1121 backedges. 209 proven. 2 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2018-09-18 12:21:21,553 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:21:21,553 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 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:21:21,564 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:21:21,564 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:21:21,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:21:21,757 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:21:22,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1121 backedges. 587 proven. 0 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2018-09-18 12:21:22,076 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:21:22,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1121 backedges. 209 proven. 2 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2018-09-18 12:21:22,640 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 12:21:22,640 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 4 [2018-09-18 12:21:22,640 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:21:22,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 12:21:22,641 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 12:21:22,641 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 12:21:22,642 INFO L87 Difference]: Start difference. First operand 76567 states and 89779 transitions. Second operand 3 states. [2018-09-18 12:21:28,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:21:28,708 INFO L93 Difference]: Finished difference Result 194808 states and 231738 transitions. [2018-09-18 12:21:28,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 12:21:28,710 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 682 [2018-09-18 12:21:28,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:21:29,040 INFO L225 Difference]: With dead ends: 194808 [2018-09-18 12:21:29,041 INFO L226 Difference]: Without dead ends: 118696 [2018-09-18 12:21:29,206 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1366 GetRequests, 1364 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 12:21:29,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118696 states. [2018-09-18 12:21:30,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118696 to 117351. [2018-09-18 12:21:30,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117351 states. [2018-09-18 12:21:30,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117351 states to 117351 states and 136983 transitions. [2018-09-18 12:21:30,930 INFO L78 Accepts]: Start accepts. Automaton has 117351 states and 136983 transitions. Word has length 682 [2018-09-18 12:21:30,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:21:30,931 INFO L480 AbstractCegarLoop]: Abstraction has 117351 states and 136983 transitions. [2018-09-18 12:21:30,931 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 12:21:30,931 INFO L276 IsEmpty]: Start isEmpty. Operand 117351 states and 136983 transitions. [2018-09-18 12:21:31,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 790 [2018-09-18 12:21:31,145 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:21:31,145 INFO L376 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-09-18 12:21:31,146 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:21:31,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1850424770, now seen corresponding path program 1 times [2018-09-18 12:21:31,146 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:21:31,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:21:31,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:21:31,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:21:31,147 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:21:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:21:32,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1067 backedges. 211 proven. 4 refuted. 0 times theorem prover too weak. 852 trivial. 0 not checked. [2018-09-18 12:21:32,376 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:21:32,377 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 12:21:32,386 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:21:32,386 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:21:32,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:21:32,619 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:21:32,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1067 backedges. 801 proven. 0 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2018-09-18 12:21:32,919 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:21:33,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1067 backedges. 217 proven. 12 refuted. 0 times theorem prover too weak. 838 trivial. 0 not checked. [2018-09-18 12:21:33,428 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 12:21:33,428 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 6 [2018-09-18 12:21:33,428 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:21:33,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 12:21:33,429 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 12:21:33,430 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 12:21:33,430 INFO L87 Difference]: Start difference. First operand 117351 states and 136983 transitions. Second operand 3 states. [2018-09-18 12:21:36,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:21:36,964 INFO L93 Difference]: Finished difference Result 218494 states and 254906 transitions. [2018-09-18 12:21:36,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 12:21:36,964 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 789 [2018-09-18 12:21:36,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:21:37,796 INFO L225 Difference]: With dead ends: 218494 [2018-09-18 12:21:37,796 INFO L226 Difference]: Without dead ends: 101598 [2018-09-18 12:21:37,932 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1581 GetRequests, 1574 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 12:21:38,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101598 states. [2018-09-18 12:21:39,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101598 to 101162. [2018-09-18 12:21:39,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101162 states. [2018-09-18 12:21:39,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101162 states to 101162 states and 117636 transitions. [2018-09-18 12:21:39,432 INFO L78 Accepts]: Start accepts. Automaton has 101162 states and 117636 transitions. Word has length 789 [2018-09-18 12:21:39,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:21:39,432 INFO L480 AbstractCegarLoop]: Abstraction has 101162 states and 117636 transitions. [2018-09-18 12:21:39,433 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 12:21:39,433 INFO L276 IsEmpty]: Start isEmpty. Operand 101162 states and 117636 transitions. [2018-09-18 12:21:39,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 831 [2018-09-18 12:21:39,592 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:21:39,593 INFO L376 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 12:21:39,593 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:21:39,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1727731546, now seen corresponding path program 1 times [2018-09-18 12:21:39,594 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:21:39,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:21:39,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:21:39,594 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:21:39,594 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:21:39,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:21:40,749 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 10 DAG size of output: 5 [2018-09-18 12:21:41,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 631 proven. 35 refuted. 0 times theorem prover too weak. 494 trivial. 0 not checked. [2018-09-18 12:21:41,054 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:21:41,054 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:21:41,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:21:41,063 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:21:41,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:21:41,793 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:21:42,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 673 proven. 2 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2018-09-18 12:21:42,354 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:21:43,075 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 273 proven. 297 refuted. 0 times theorem prover too weak. 590 trivial. 0 not checked. [2018-09-18 12:21:43,097 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:21:43,097 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 15 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 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 12:21:43,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:21:43,113 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:21:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:21:43,640 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:21:44,512 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 601 proven. 2 refuted. 0 times theorem prover too weak. 557 trivial. 0 not checked. [2018-09-18 12:21:44,512 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:21:44,732 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 34 [2018-09-18 12:21:45,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1160 backedges. 203 proven. 499 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked. [2018-09-18 12:21:45,472 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 12:21:45,472 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5, 5, 5] total 16 [2018-09-18 12:21:45,472 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 12:21:45,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-18 12:21:45,474 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-18 12:21:45,474 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2018-09-18 12:21:45,475 INFO L87 Difference]: Start difference. First operand 101162 states and 117636 transitions. Second operand 10 states. Received shutdown request... [2018-09-18 12:22:01,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-09-18 12:22:01,877 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 12:22:01,882 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 12:22:01,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 12:22:01 BoogieIcfgContainer [2018-09-18 12:22:01,883 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 12:22:01,884 INFO L168 Benchmark]: Toolchain (without parser) took 234968.01 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 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-09-18 12:22:01,885 INFO L168 Benchmark]: CDTParser took 0.42 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 12:22:01,886 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1815.53 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: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. [2018-09-18 12:22:01,886 INFO L168 Benchmark]: Boogie Procedure Inliner took 771.20 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 878.2 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 109.2 MB. Max. memory is 7.1 GB. [2018-09-18 12:22:01,887 INFO L168 Benchmark]: Boogie Preprocessor took 304.47 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 7.1 GB. [2018-09-18 12:22:01,888 INFO L168 Benchmark]: RCFGBuilder took 13702.04 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 451.6 MB). Peak memory consumption was 451.6 MB. Max. memory is 7.1 GB. [2018-09-18 12:22:01,889 INFO L168 Benchmark]: TraceAbstraction took 218368.18 ms. Allocated memory was 2.4 GB in the beginning and 3.9 GB in the end (delta: 1.5 GB). Free memory was 1.8 GB in the beginning and 2.5 GB in the end (delta: -726.6 MB). Peak memory consumption was 767.6 MB. Max. memory is 7.1 GB. [2018-09-18 12:22:01,893 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 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 1815.53 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: 190.3 MB). Peak memory consumption was 190.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 771.20 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 878.2 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 109.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 304.47 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13702.04 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 451.6 MB). Peak memory consumption was 451.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 218368.18 ms. Allocated memory was 2.4 GB in the beginning and 3.9 GB in the end (delta: 1.5 GB). Free memory was 1.8 GB in the beginning and 2.5 GB in the end (delta: -726.6 MB). Peak memory consumption was 767.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 119]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 119). Cancelled while BasicCegarLoop was constructing difference of abstraction (101162states) and FLOYD_HOARE automaton (currently 32 states, 10 states before enhancement), while ReachableStatesComputation was computing reachable states (55861 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 218.2s OverallTime, 14 OverallIterations, 6 TraceHistogramMax, 158.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4728 SDtfs, 24411 SDslu, 3255 SDs, 0 SdLazy, 43681 SolverSat, 10930 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 135.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13351 GetRequests, 13178 SyntacticMatches, 30 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 30.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=117351occurred in iteration=12, 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: 8.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 26221 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.5s SsaConstructionTime, 3.5s SatisfiabilityAnalysisTime, 43.4s InterpolantComputationTime, 12264 NumberOfCodeBlocks, 12264 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 18811 ConstructedInterpolants, 304 QuantifiedInterpolants, 25534625 SizeOfPredicates, 28 NumberOfNonLiveVariables, 9920 ConjunctsInSsa, 106 ConjunctsInUnsatCore, 42 InterpolantComputations, 12 PerfectInterpolantSequences, 17312/19329 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/Problem17_label51_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_12-22-01-909.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label51_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_12-22-01-909.csv Completed graceful shutdown