java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label45_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 14:02:45,701 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 14:02:45,703 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 14:02:45,715 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 14:02:45,715 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 14:02:45,716 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 14:02:45,718 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 14:02:45,719 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 14:02:45,721 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 14:02:45,722 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 14:02:45,722 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 14:02:45,723 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 14:02:45,724 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 14:02:45,724 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 14:02:45,726 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 14:02:45,726 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 14:02:45,727 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 14:02:45,729 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 14:02:45,731 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 14:02:45,733 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 14:02:45,734 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 14:02:45,737 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 14:02:45,743 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 14:02:45,743 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 14:02:45,743 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 14:02:45,744 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 14:02:45,748 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 14:02:45,749 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 14:02:45,750 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 14:02:45,751 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 14:02:45,751 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 14:02:45,752 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 14:02:45,752 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 14:02:45,752 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 14:02:45,753 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 14:02:45,757 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 14:02:45,757 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 [2018-07-24 14:02:45,789 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 14:02:45,789 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 14:02:45,790 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 14:02:45,791 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 14:02:45,791 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 14:02:45,791 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 14:02:45,791 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 14:02:45,792 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 14:02:45,792 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 14:02:45,792 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 14:02:45,792 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 14:02:45,793 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 14:02:45,793 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 14:02:45,793 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 14:02:45,793 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 14:02:45,794 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 14:02:45,794 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 14:02:45,794 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 14:02:45,795 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 14:02:45,795 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 14:02:45,795 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 14:02:45,795 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 14:02:45,796 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 14:02:45,796 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 14:02:45,796 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 14:02:45,796 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 14:02:45,796 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 14:02:45,797 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 14:02:45,797 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 14:02:45,797 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 14:02:45,797 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 14:02:45,798 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 14:02:45,798 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 14:02:45,853 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 14:02:45,868 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 14:02:45,873 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 14:02:45,875 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 14:02:45,875 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 14:02:45,876 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label45_true-unreach-call.c [2018-07-24 14:02:46,234 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6883238b3/0b04fda758a84cf6b983a214dd8bb9a9/FLAGf951daf82 [2018-07-24 14:02:46,568 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 14:02:46,569 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label45_true-unreach-call.c [2018-07-24 14:02:46,592 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6883238b3/0b04fda758a84cf6b983a214dd8bb9a9/FLAGf951daf82 [2018-07-24 14:02:46,608 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6883238b3/0b04fda758a84cf6b983a214dd8bb9a9 [2018-07-24 14:02:46,621 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 14:02:46,622 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 14:02:46,626 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 14:02:46,626 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 14:02:46,635 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 14:02:46,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:02:46" (1/1) ... [2018-07-24 14:02:46,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a4313de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:02:46, skipping insertion in model container [2018-07-24 14:02:46,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 02:02:46" (1/1) ... [2018-07-24 14:02:46,876 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 14:02:47,309 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:02:47,327 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 14:02:47,525 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 14:02:47,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:02:47 WrapperNode [2018-07-24 14:02:47,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 14:02:47,618 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 14:02:47,618 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 14:02:47,618 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 14:02:47,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:02:47" (1/1) ... [2018-07-24 14:02:47,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:02:47" (1/1) ... [2018-07-24 14:02:47,820 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 14:02:47,820 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 14:02:47,821 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 14:02:47,821 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 14:02:47,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:02:47" (1/1) ... [2018-07-24 14:02:47,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:02:47" (1/1) ... [2018-07-24 14:02:47,844 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:02:47" (1/1) ... [2018-07-24 14:02:47,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:02:47" (1/1) ... [2018-07-24 14:02:48,180 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:02:47" (1/1) ... [2018-07-24 14:02:48,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:02:47" (1/1) ... [2018-07-24 14:02:48,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:02:47" (1/1) ... [2018-07-24 14:02:48,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 14:02:48,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 14:02:48,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 14:02:48,237 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 14:02:48,238 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:02:47" (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 [2018-07-24 14:02:48,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 14:02:48,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 14:02:48,309 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-24 14:02:48,309 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-24 14:02:48,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 14:02:48,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 14:02:48,310 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 14:02:48,310 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 14:02:53,837 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 14:02:53,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:02:53 BoogieIcfgContainer [2018-07-24 14:02:53,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 14:02:53,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 14:02:53,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 14:02:53,843 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 14:02:53,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 02:02:46" (1/3) ... [2018-07-24 14:02:53,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@794d56dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:02:53, skipping insertion in model container [2018-07-24 14:02:53,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 02:02:47" (2/3) ... [2018-07-24 14:02:53,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@794d56dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 02:02:53, skipping insertion in model container [2018-07-24 14:02:53,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 02:02:53" (3/3) ... [2018-07-24 14:02:53,846 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label45_true-unreach-call.c [2018-07-24 14:02:53,855 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 14:02:53,864 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 14:02:53,918 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 14:02:53,919 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 14:02:53,920 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 14:02:53,920 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 14:02:53,920 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 14:02:53,920 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 14:02:53,920 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 14:02:53,920 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 14:02:53,921 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 14:02:53,950 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-07-24 14:02:53,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-07-24 14:02:53,958 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:02:53,960 INFO L353 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] [2018-07-24 14:02:53,960 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:02:53,965 INFO L82 PathProgramCache]: Analyzing trace with hash -23841615, now seen corresponding path program 1 times [2018-07-24 14:02:53,967 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:02:54,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:02:54,012 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:02:54,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:02:54,012 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:02:54,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:02:54,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:02:54,493 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:02:54,493 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 14:02:54,493 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:02:54,502 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 14:02:54,517 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 14:02:54,518 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:02:54,521 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-07-24 14:02:57,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:02:57,979 INFO L93 Difference]: Finished difference Result 996 states and 1776 transitions. [2018-07-24 14:02:57,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 14:02:57,980 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2018-07-24 14:02:57,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:02:58,004 INFO L225 Difference]: With dead ends: 996 [2018-07-24 14:02:58,004 INFO L226 Difference]: Without dead ends: 697 [2018-07-24 14:02:58,016 INFO L573 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 [2018-07-24 14:02:58,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2018-07-24 14:02:58,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 481. [2018-07-24 14:02:58,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2018-07-24 14:02:58,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 742 transitions. [2018-07-24 14:02:58,114 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 742 transitions. Word has length 39 [2018-07-24 14:02:58,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:02:58,115 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 742 transitions. [2018-07-24 14:02:58,115 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 14:02:58,115 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 742 transitions. [2018-07-24 14:02:58,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-07-24 14:02:58,121 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:02:58,122 INFO L353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:02:58,122 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:02:58,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1487845251, now seen corresponding path program 1 times [2018-07-24 14:02:58,123 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:02:58,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:02:58,124 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:02:58,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:02:58,124 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:02:58,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:02:58,495 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:02:58,495 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:02:58,495 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 14:02:58,495 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:02:58,499 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:02:58,499 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:02:58,499 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:02:58,500 INFO L87 Difference]: Start difference. First operand 481 states and 742 transitions. Second operand 6 states. [2018-07-24 14:03:02,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:03:02,831 INFO L93 Difference]: Finished difference Result 1725 states and 2777 transitions. [2018-07-24 14:03:02,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:03:02,841 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 112 [2018-07-24 14:03:02,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:03:02,857 INFO L225 Difference]: With dead ends: 1725 [2018-07-24 14:03:02,857 INFO L226 Difference]: Without dead ends: 1250 [2018-07-24 14:03:02,862 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-24 14:03:02,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2018-07-24 14:03:02,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1231. [2018-07-24 14:03:02,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1231 states. [2018-07-24 14:03:02,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 1812 transitions. [2018-07-24 14:03:02,962 INFO L78 Accepts]: Start accepts. Automaton has 1231 states and 1812 transitions. Word has length 112 [2018-07-24 14:03:02,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:03:02,963 INFO L471 AbstractCegarLoop]: Abstraction has 1231 states and 1812 transitions. [2018-07-24 14:03:02,963 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:03:02,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1231 states and 1812 transitions. [2018-07-24 14:03:02,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2018-07-24 14:03:02,971 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:03:02,972 INFO L353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:03:02,972 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:03:02,972 INFO L82 PathProgramCache]: Analyzing trace with hash 84082156, now seen corresponding path program 1 times [2018-07-24 14:03:02,977 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:03:02,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:03:02,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:03:02,979 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:03:02,979 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:03:03,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:03:03,161 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:03:03,162 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:03:03,162 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-24 14:03:03,162 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:03:03,163 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-24 14:03:03,163 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-24 14:03:03,163 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-24 14:03:03,163 INFO L87 Difference]: Start difference. First operand 1231 states and 1812 transitions. Second operand 4 states. [2018-07-24 14:03:06,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:03:06,351 INFO L93 Difference]: Finished difference Result 3240 states and 4918 transitions. [2018-07-24 14:03:06,353 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-24 14:03:06,353 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 113 [2018-07-24 14:03:06,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:03:06,368 INFO L225 Difference]: With dead ends: 3240 [2018-07-24 14:03:06,369 INFO L226 Difference]: Without dead ends: 2015 [2018-07-24 14:03:06,377 INFO L573 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 [2018-07-24 14:03:06,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2015 states. [2018-07-24 14:03:06,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2015 to 2000. [2018-07-24 14:03:06,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2000 states. [2018-07-24 14:03:06,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2000 states to 2000 states and 2897 transitions. [2018-07-24 14:03:06,439 INFO L78 Accepts]: Start accepts. Automaton has 2000 states and 2897 transitions. Word has length 113 [2018-07-24 14:03:06,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:03:06,440 INFO L471 AbstractCegarLoop]: Abstraction has 2000 states and 2897 transitions. [2018-07-24 14:03:06,440 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-24 14:03:06,440 INFO L276 IsEmpty]: Start isEmpty. Operand 2000 states and 2897 transitions. [2018-07-24 14:03:06,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2018-07-24 14:03:06,444 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:03:06,445 INFO L353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:03:06,445 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:03:06,445 INFO L82 PathProgramCache]: Analyzing trace with hash 13633623, now seen corresponding path program 1 times [2018-07-24 14:03:06,445 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:03:06,446 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:03:06,446 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:03:06,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:03:06,447 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:03:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:03:06,708 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:03:06,709 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 14:03:06,709 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-24 14:03:06,709 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:03:06,710 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:03:06,710 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:03:06,711 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-24 14:03:06,711 INFO L87 Difference]: Start difference. First operand 2000 states and 2897 transitions. Second operand 6 states. [2018-07-24 14:03:11,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:03:11,676 INFO L93 Difference]: Finished difference Result 7663 states and 13259 transitions. [2018-07-24 14:03:11,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-07-24 14:03:11,680 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 138 [2018-07-24 14:03:11,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:03:11,740 INFO L225 Difference]: With dead ends: 7663 [2018-07-24 14:03:11,740 INFO L226 Difference]: Without dead ends: 5669 [2018-07-24 14:03:11,800 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-07-24 14:03:11,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5669 states. [2018-07-24 14:03:11,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5669 to 5142. [2018-07-24 14:03:11,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5142 states. [2018-07-24 14:03:12,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5142 states to 5142 states and 7297 transitions. [2018-07-24 14:03:12,019 INFO L78 Accepts]: Start accepts. Automaton has 5142 states and 7297 transitions. Word has length 138 [2018-07-24 14:03:12,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:03:12,020 INFO L471 AbstractCegarLoop]: Abstraction has 5142 states and 7297 transitions. [2018-07-24 14:03:12,021 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:03:12,021 INFO L276 IsEmpty]: Start isEmpty. Operand 5142 states and 7297 transitions. [2018-07-24 14:03:12,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-07-24 14:03:12,030 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:03:12,031 INFO L353 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:03:12,031 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:03:12,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1597740930, now seen corresponding path program 1 times [2018-07-24 14:03:12,031 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:03:12,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:03:12,032 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:03:12,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:03:12,033 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:03:12,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:03:12,576 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 134 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:03:12,576 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:03:12,576 INFO L191 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 [2018-07-24 14:03:12,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:03:12,595 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:03:12,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:03:12,717 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:03:13,059 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-07-24 14:03:13,060 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:03:13,291 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-07-24 14:03:13,325 INFO L309 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-07-24 14:03:13,325 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2018-07-24 14:03:13,325 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:03:13,326 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:03:13,326 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:03:13,326 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-07-24 14:03:13,327 INFO L87 Difference]: Start difference. First operand 5142 states and 7297 transitions. Second operand 3 states. [2018-07-24 14:03:16,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:03:16,235 INFO L93 Difference]: Finished difference Result 12528 states and 19444 transitions. [2018-07-24 14:03:16,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:03:16,242 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2018-07-24 14:03:16,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:03:16,291 INFO L225 Difference]: With dead ends: 12528 [2018-07-24 14:03:16,292 INFO L226 Difference]: Without dead ends: 7392 [2018-07-24 14:03:16,333 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 371 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-07-24 14:03:16,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7392 states. [2018-07-24 14:03:16,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7392 to 7392. [2018-07-24 14:03:16,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7392 states. [2018-07-24 14:03:16,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7392 states to 7392 states and 10710 transitions. [2018-07-24 14:03:16,578 INFO L78 Accepts]: Start accepts. Automaton has 7392 states and 10710 transitions. Word has length 186 [2018-07-24 14:03:16,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:03:16,579 INFO L471 AbstractCegarLoop]: Abstraction has 7392 states and 10710 transitions. [2018-07-24 14:03:16,579 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:03:16,579 INFO L276 IsEmpty]: Start isEmpty. Operand 7392 states and 10710 transitions. [2018-07-24 14:03:16,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-07-24 14:03:16,595 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:03:16,595 INFO L353 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:03:16,595 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:03:16,596 INFO L82 PathProgramCache]: Analyzing trace with hash 187007348, now seen corresponding path program 1 times [2018-07-24 14:03:16,596 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:03:16,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:03:16,597 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:03:16,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:03:16,597 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:03:16,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:03:17,251 WARN L169 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-07-24 14:03:17,494 WARN L169 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 18 DAG size of output: 16 [2018-07-24 14:03:17,582 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 64 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:03:17,582 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:03:17,582 INFO L191 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 [2018-07-24 14:03:17,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:03:17,592 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:03:17,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:03:17,695 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:03:17,832 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-07-24 14:03:17,832 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:03:18,045 WARN L169 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2018-07-24 14:03:18,826 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 64 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:03:18,860 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:03:18,861 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 5] total 11 [2018-07-24 14:03:18,861 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:03:18,862 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-24 14:03:18,862 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-24 14:03:18,862 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-07-24 14:03:18,863 INFO L87 Difference]: Start difference. First operand 7392 states and 10710 transitions. Second operand 5 states. [2018-07-24 14:03:19,119 WARN L169 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-07-24 14:03:24,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:03:24,331 INFO L93 Difference]: Finished difference Result 17333 states and 24894 transitions. [2018-07-24 14:03:24,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:03:24,332 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 208 [2018-07-24 14:03:24,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:03:24,395 INFO L225 Difference]: With dead ends: 17333 [2018-07-24 14:03:24,396 INFO L226 Difference]: Without dead ends: 9752 [2018-07-24 14:03:24,439 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 413 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-07-24 14:03:24,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9752 states. [2018-07-24 14:03:24,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9752 to 9701. [2018-07-24 14:03:24,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9701 states. [2018-07-24 14:03:24,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9701 states to 9701 states and 13744 transitions. [2018-07-24 14:03:24,761 INFO L78 Accepts]: Start accepts. Automaton has 9701 states and 13744 transitions. Word has length 208 [2018-07-24 14:03:24,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:03:24,762 INFO L471 AbstractCegarLoop]: Abstraction has 9701 states and 13744 transitions. [2018-07-24 14:03:24,762 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-24 14:03:24,762 INFO L276 IsEmpty]: Start isEmpty. Operand 9701 states and 13744 transitions. [2018-07-24 14:03:24,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2018-07-24 14:03:24,781 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:03:24,781 INFO L353 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:03:24,781 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:03:24,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1523785897, now seen corresponding path program 1 times [2018-07-24 14:03:24,782 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:03:24,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:03:24,784 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:03:24,784 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:03:24,784 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:03:24,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:03:25,727 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-07-24 14:03:25,728 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:03:25,728 INFO L191 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 [2018-07-24 14:03:25,745 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:03:25,746 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:03:25,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:03:25,869 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:03:26,302 WARN L169 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 32 [2018-07-24 14:03:26,425 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 67 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-07-24 14:03:26,425 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:03:27,274 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-07-24 14:03:27,295 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:03:27,296 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 11 [2018-07-24 14:03:27,296 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:03:27,297 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-24 14:03:27,297 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-24 14:03:27,297 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-07-24 14:03:27,297 INFO L87 Difference]: Start difference. First operand 9701 states and 13744 transitions. Second operand 6 states. [2018-07-24 14:03:30,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:03:30,932 INFO L93 Difference]: Finished difference Result 26220 states and 42443 transitions. [2018-07-24 14:03:30,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-24 14:03:30,932 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 251 [2018-07-24 14:03:30,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:03:31,046 INFO L225 Difference]: With dead ends: 26220 [2018-07-24 14:03:31,046 INFO L226 Difference]: Without dead ends: 16525 [2018-07-24 14:03:31,122 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 497 SyntacticMatches, 6 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-07-24 14:03:31,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16525 states. [2018-07-24 14:03:31,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16525 to 15889. [2018-07-24 14:03:31,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15889 states. [2018-07-24 14:03:31,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15889 states to 15889 states and 24359 transitions. [2018-07-24 14:03:31,672 INFO L78 Accepts]: Start accepts. Automaton has 15889 states and 24359 transitions. Word has length 251 [2018-07-24 14:03:31,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:03:31,673 INFO L471 AbstractCegarLoop]: Abstraction has 15889 states and 24359 transitions. [2018-07-24 14:03:31,673 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-24 14:03:31,673 INFO L276 IsEmpty]: Start isEmpty. Operand 15889 states and 24359 transitions. [2018-07-24 14:03:31,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2018-07-24 14:03:31,751 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:03:31,752 INFO L353 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-24 14:03:31,752 INFO L414 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:03:31,752 INFO L82 PathProgramCache]: Analyzing trace with hash -488047406, now seen corresponding path program 1 times [2018-07-24 14:03:31,752 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:03:31,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:03:31,753 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:03:31,753 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:03:31,754 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:03:31,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:03:33,019 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 0 proven. 71 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2018-07-24 14:03:33,020 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:03:33,020 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:03:33,032 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:03:33,032 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:03:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:03:33,181 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:03:36,149 WARN L169 SmtUtils]: Spent 2.62 s on a formula simplification. DAG size of input: 42 DAG size of output: 32 [2018-07-24 14:03:36,512 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 11 proven. 60 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2018-07-24 14:03:36,512 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:03:37,013 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:37,068 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:37,111 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:37,171 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:37,248 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:37,298 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:37,383 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:37,426 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:37,479 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:37,541 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:37,698 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:37,753 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:37,817 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:37,861 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:37,917 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:37,957 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:38,015 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:38,062 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:38,109 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:38,157 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:38,207 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:38,249 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:38,294 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:38,362 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:38,451 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:38,494 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:38,536 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:38,593 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:38,636 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:38,689 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:38,729 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:38,771 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:38,841 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:38,895 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:38,941 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:38,984 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:39,042 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:39,104 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:39,145 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:39,196 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:39,544 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:39,640 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:39,680 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:39,753 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:39,870 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:39,910 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:39,953 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:39,992 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:40,071 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:40,111 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:40,154 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:40,195 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:40,235 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:40,326 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:40,366 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:40,406 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:40,484 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:40,541 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:40,582 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:40,623 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:40,715 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:40,755 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:40,796 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:40,837 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:40,877 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:40,923 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:40,977 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:41,017 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:41,058 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:41,100 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:41,361 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:41,401 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:41,443 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:41,486 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:41,527 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:41,568 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:41,609 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:41,648 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:41,689 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:41,731 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:41,770 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:41,810 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:41,851 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:41,917 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:41,958 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:42,000 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:42,041 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:42,084 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:42,125 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:42,186 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:42,227 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:42,278 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:42,317 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:42,388 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:42,431 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:42,472 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:42,514 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:42,723 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:42,768 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:42,813 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:43,003 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:43,044 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:43,087 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:43,131 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:43,195 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:43,531 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:43,865 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:44,208 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:44,470 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:44,535 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:44,862 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:44,922 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:44,972 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:45,011 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:45,054 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:45,096 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:45,134 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:45,195 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:45,236 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:45,277 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:45,316 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:45,357 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:45,398 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:45,439 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:45,496 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:45,536 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:45,578 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:45,618 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:45,659 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:45,698 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:45,737 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:45,778 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:45,818 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:45,860 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:45,899 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:45,940 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:45,982 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:46,023 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:46,062 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:46,108 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:46,149 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:46,190 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:46,229 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:46,272 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:46,315 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:46,355 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:46,396 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:46,436 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:46,479 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:46,521 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:46,562 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:46,605 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:46,649 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:46,691 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:46,731 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:46,772 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:46,822 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:46,862 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:46,904 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:46,945 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:46,989 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:47,144 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:47,189 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:47,229 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:47,267 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:47,331 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:47,371 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:03:51,120 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 67 proven. 127 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:03:51,141 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:03:51,142 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 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 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:03:51,159 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:03:51,159 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:03:51,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:03:51,461 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:03:55,541 WARN L169 SmtUtils]: Spent 2.02 s on a formula simplification that was a NOOP. DAG size: 35 [2018-07-24 14:04:03,664 WARN L169 SmtUtils]: Spent 6.03 s on a formula simplification that was a NOOP. DAG size: 38 [2018-07-24 14:04:03,937 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 9 proven. 62 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2018-07-24 14:04:03,937 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:04:04,037 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:04,078 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:04,120 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:04,214 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:04,296 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:04,336 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:04,494 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:04,534 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:04,577 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:04,631 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:04,688 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:04,753 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:04,813 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:04,871 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:04,920 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:04,962 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:05,004 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:05,047 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:05,090 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:05,130 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:05,176 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:05,217 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:05,258 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:05,297 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:05,337 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:05,391 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:05,435 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:05,477 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:05,519 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:05,559 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:05,602 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:05,660 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:05,701 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:05,741 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:05,783 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:05,830 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:05,893 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:05,937 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:05,977 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:06,038 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:06,079 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:06,121 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:06,192 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:06,233 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:06,278 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:06,322 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:06,362 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:06,407 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:06,447 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:06,488 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:06,528 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:06,855 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:06,995 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:07,037 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:07,079 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:07,119 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:07,162 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:07,204 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:07,245 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:07,286 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:07,330 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:07,372 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:07,414 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:07,454 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:07,495 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:07,536 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:07,581 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:07,625 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:07,667 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:07,713 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:07,757 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:07,839 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:07,890 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:07,934 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:07,979 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:08,139 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:08,182 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:08,225 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:08,270 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:08,348 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:08,393 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:08,435 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:08,481 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:08,522 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:08,566 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:08,610 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:08,654 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:08,699 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:08,742 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:08,787 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:08,832 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:08,878 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:08,921 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:08,963 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:09,010 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:09,053 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:09,096 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:09,140 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:09,182 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:09,232 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:09,276 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:09,627 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:09,699 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:09,753 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:09,800 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:09,849 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:09,908 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:09,954 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:09,998 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:10,040 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:10,098 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:10,148 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:10,197 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:10,245 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:10,295 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:10,337 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:10,379 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:10,422 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:10,509 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:10,552 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:10,595 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:10,640 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:10,689 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:10,739 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:10,784 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:10,832 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:10,881 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:10,932 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:10,980 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:11,024 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:11,069 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:11,116 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:11,160 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:11,203 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:11,246 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:11,289 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:11,331 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:11,379 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:11,421 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:11,463 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:11,504 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:11,548 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:11,594 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:11,639 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:11,682 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:11,723 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:11,943 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:12,087 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:12,129 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:12,172 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:12,215 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:12,257 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:12,298 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:12,341 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:12,383 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:12,426 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:12,467 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:12,508 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:12,550 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:12,591 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:12,637 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:12,678 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:12,719 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:12,760 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:12,800 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:12,840 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:12,882 WARN L136 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-07-24 14:04:14,334 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 67 proven. 127 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 14:04:14,336 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:04:14,336 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9, 9, 9] total 24 [2018-07-24 14:04:14,336 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:04:14,337 INFO L450 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-07-24 14:04:14,337 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-07-24 14:04:14,338 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=401, Unknown=3, NotChecked=0, Total=552 [2018-07-24 14:04:14,338 INFO L87 Difference]: Start difference. First operand 15889 states and 24359 transitions. Second operand 16 states. [2018-07-24 14:04:22,337 WARN L169 SmtUtils]: Spent 1.89 s on a formula simplification that was a NOOP. DAG size: 35 [2018-07-24 14:05:59,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:05:59,644 INFO L93 Difference]: Finished difference Result 60845 states and 121359 transitions. [2018-07-24 14:05:59,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-07-24 14:05:59,645 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 347 [2018-07-24 14:05:59,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:06:00,099 INFO L225 Difference]: With dead ends: 60845 [2018-07-24 14:06:00,099 INFO L226 Difference]: Without dead ends: 44962 [2018-07-24 14:06:00,745 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1431 GetRequests, 1038 SyntacticMatches, 339 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5582 ImplicationChecksByTransitivity, 58.8s TimeCoverageRelationStatistics Valid=766, Invalid=2302, Unknown=12, NotChecked=0, Total=3080 [2018-07-24 14:06:00,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44962 states. [2018-07-24 14:06:02,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44962 to 43126. [2018-07-24 14:06:02,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43126 states. [2018-07-24 14:06:02,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43126 states to 43126 states and 62923 transitions. [2018-07-24 14:06:02,360 INFO L78 Accepts]: Start accepts. Automaton has 43126 states and 62923 transitions. Word has length 347 [2018-07-24 14:06:02,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:06:02,361 INFO L471 AbstractCegarLoop]: Abstraction has 43126 states and 62923 transitions. [2018-07-24 14:06:02,361 INFO L472 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-07-24 14:06:02,361 INFO L276 IsEmpty]: Start isEmpty. Operand 43126 states and 62923 transitions. [2018-07-24 14:06:02,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2018-07-24 14:06:02,569 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:06:02,569 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:06:02,569 INFO L414 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:06:02,570 INFO L82 PathProgramCache]: Analyzing trace with hash -75458648, now seen corresponding path program 1 times [2018-07-24 14:06:02,570 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:06:02,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:06:02,571 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:06:02,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:06:02,571 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:06:02,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:06:03,128 WARN L169 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-07-24 14:06:03,320 WARN L169 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-07-24 14:06:03,917 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 188 proven. 88 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2018-07-24 14:06:03,918 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:06:03,918 INFO L191 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 [2018-07-24 14:06:03,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:06:03,925 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:06:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:06:04,084 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:06:05,189 WARN L169 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 31 [2018-07-24 14:06:05,750 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 356 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-07-24 14:06:05,751 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:06:06,389 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 188 proven. 88 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2018-07-24 14:06:06,409 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:06:06,409 INFO L191 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 [2018-07-24 14:06:06,426 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:06:06,426 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:06:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:06:06,779 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:06:07,353 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 352 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2018-07-24 14:06:07,353 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:06:09,235 INFO L134 CoverageAnalysis]: Checked inductivity of 391 backedges. 104 proven. 282 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-24 14:06:09,238 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:06:09,239 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 7, 8, 10, 11] total 39 [2018-07-24 14:06:09,239 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:06:09,240 INFO L450 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-07-24 14:06:09,240 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-07-24 14:06:09,240 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=1267, Unknown=0, NotChecked=0, Total=1482 [2018-07-24 14:06:09,241 INFO L87 Difference]: Start difference. First operand 43126 states and 62923 transitions. Second operand 18 states. [2018-07-24 14:06:11,201 WARN L169 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-07-24 14:06:13,858 WARN L169 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2018-07-24 14:06:15,213 WARN L169 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2018-07-24 14:06:16,765 WARN L169 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2018-07-24 14:06:19,099 WARN L169 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 34 [2018-07-24 14:06:21,817 WARN L169 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 40 [2018-07-24 14:06:22,678 WARN L169 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 35 [2018-07-24 14:06:28,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:06:28,646 INFO L93 Difference]: Finished difference Result 100712 states and 193141 transitions. [2018-07-24 14:06:28,646 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2018-07-24 14:06:28,646 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 421 [2018-07-24 14:06:28,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:06:29,278 INFO L225 Difference]: With dead ends: 100712 [2018-07-24 14:06:29,278 INFO L226 Difference]: Without dead ends: 57972 [2018-07-24 14:06:29,633 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 1804 GetRequests, 1701 SyntacticMatches, 5 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2757 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=2044, Invalid=7856, Unknown=0, NotChecked=0, Total=9900 [2018-07-24 14:06:29,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57972 states. [2018-07-24 14:06:32,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57972 to 54548. [2018-07-24 14:06:32,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54548 states. [2018-07-24 14:06:32,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54548 states to 54548 states and 78206 transitions. [2018-07-24 14:06:32,513 INFO L78 Accepts]: Start accepts. Automaton has 54548 states and 78206 transitions. Word has length 421 [2018-07-24 14:06:32,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:06:32,515 INFO L471 AbstractCegarLoop]: Abstraction has 54548 states and 78206 transitions. [2018-07-24 14:06:32,515 INFO L472 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-07-24 14:06:32,515 INFO L276 IsEmpty]: Start isEmpty. Operand 54548 states and 78206 transitions. [2018-07-24 14:06:32,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 437 [2018-07-24 14:06:32,675 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:06:32,675 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 14:06:32,675 INFO L414 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:06:32,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1209291006, now seen corresponding path program 1 times [2018-07-24 14:06:32,676 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:06:32,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:06:32,677 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:06:32,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:06:32,680 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:06:32,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:06:33,058 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 96 proven. 4 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2018-07-24 14:06:33,058 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:06:33,059 INFO L191 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 [2018-07-24 14:06:33,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:06:33,076 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:06:33,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:06:33,263 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:06:33,432 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 245 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2018-07-24 14:06:33,432 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:06:33,804 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 96 proven. 4 refuted. 0 times theorem prover too weak. 304 trivial. 0 not checked. [2018-07-24 14:06:33,837 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-24 14:06:33,838 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 3 [2018-07-24 14:06:33,838 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 14:06:33,839 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-24 14:06:33,839 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-24 14:06:33,839 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:06:33,840 INFO L87 Difference]: Start difference. First operand 54548 states and 78206 transitions. Second operand 3 states. [2018-07-24 14:06:36,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 14:06:36,592 INFO L93 Difference]: Finished difference Result 107584 states and 154614 transitions. [2018-07-24 14:06:36,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-24 14:06:36,593 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 436 [2018-07-24 14:06:36,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 14:06:36,841 INFO L225 Difference]: With dead ends: 107584 [2018-07-24 14:06:36,842 INFO L226 Difference]: Without dead ends: 53422 [2018-07-24 14:06:37,040 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 874 GetRequests, 871 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-24 14:06:37,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53422 states. [2018-07-24 14:06:38,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53422 to 52951. [2018-07-24 14:06:38,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52951 states. [2018-07-24 14:06:39,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52951 states to 52951 states and 67924 transitions. [2018-07-24 14:06:39,164 INFO L78 Accepts]: Start accepts. Automaton has 52951 states and 67924 transitions. Word has length 436 [2018-07-24 14:06:39,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 14:06:39,164 INFO L471 AbstractCegarLoop]: Abstraction has 52951 states and 67924 transitions. [2018-07-24 14:06:39,164 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-24 14:06:39,165 INFO L276 IsEmpty]: Start isEmpty. Operand 52951 states and 67924 transitions. [2018-07-24 14:06:39,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2018-07-24 14:06:39,295 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 14:06:39,295 INFO L353 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-07-24 14:06:39,295 INFO L414 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 14:06:39,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1315245614, now seen corresponding path program 1 times [2018-07-24 14:06:39,296 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 14:06:39,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:06:39,297 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:06:39,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 14:06:39,297 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 14:06:39,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:06:39,829 WARN L169 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-07-24 14:06:40,010 WARN L169 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-07-24 14:06:40,466 WARN L169 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-07-24 14:06:41,231 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 368 proven. 94 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2018-07-24 14:06:41,232 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:06:41,232 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-24 14:06:41,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:06:41,240 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:06:41,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:06:41,439 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:06:42,320 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 610 proven. 2 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2018-07-24 14:06:42,320 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:06:42,914 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 368 proven. 94 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2018-07-24 14:06:42,935 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-24 14:06:42,935 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-24 14:06:42,955 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 14:06:42,955 INFO L288 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-24 14:06:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 14:06:43,375 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-24 14:06:44,275 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 610 proven. 2 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2018-07-24 14:06:44,275 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-24 14:06:44,769 INFO L134 CoverageAnalysis]: Checked inductivity of 750 backedges. 368 proven. 94 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2018-07-24 14:06:44,772 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-07-24 14:06:44,772 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 8, 5, 5] total 26 [2018-07-24 14:06:44,772 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-07-24 14:06:44,773 INFO L450 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-07-24 14:06:44,774 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-07-24 14:06:44,774 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=519, Unknown=0, NotChecked=0, Total=650 [2018-07-24 14:06:44,774 INFO L87 Difference]: Start difference. First operand 52951 states and 67924 transitions. Second operand 17 states. [2018-07-24 14:06:44,934 WARN L169 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 Received shutdown request... [2018-07-24 14:06:45,628 WARN L169 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2018-07-24 14:06:45,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-24 14:06:45,630 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-24 14:06:45,636 WARN L202 ceAbstractionStarter]: Timeout [2018-07-24 14:06:45,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 02:06:45 BoogieIcfgContainer [2018-07-24 14:06:45,636 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 14:06:45,637 INFO L168 Benchmark]: Toolchain (without parser) took 239015.85 ms. Allocated memory was 1.5 GB in the beginning and 3.7 GB in the end (delta: 2.2 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -562.7 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-07-24 14:06:45,638 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-07-24 14:06:45,639 INFO L168 Benchmark]: CACSL2BoogieTranslator took 990.95 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-07-24 14:06:45,640 INFO L168 Benchmark]: Boogie Procedure Inliner took 202.47 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-24 14:06:45,640 INFO L168 Benchmark]: Boogie Preprocessor took 415.77 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 819.5 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -948.9 MB). Peak memory consumption was 52.2 MB. Max. memory is 7.1 GB. [2018-07-24 14:06:45,641 INFO L168 Benchmark]: RCFGBuilder took 5602.07 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 188.7 MB). Peak memory consumption was 188.7 MB. Max. memory is 7.1 GB. [2018-07-24 14:06:45,642 INFO L168 Benchmark]: TraceAbstraction took 231797.03 ms. Allocated memory was 2.4 GB in the beginning and 3.7 GB in the end (delta: 1.4 GB). Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 102.4 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-07-24 14:06:45,646 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 990.95 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 202.47 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 415.77 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 819.5 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -948.9 MB). Peak memory consumption was 52.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5602.07 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 188.7 MB). Peak memory consumption was 188.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 231797.03 ms. Allocated memory was 2.4 GB in the beginning and 3.7 GB in the end (delta: 1.4 GB). Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 102.4 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 102]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 102). Cancelled while BasicCegarLoop was constructing difference of abstraction (52951states) and interpolant automaton (currently 7 states, 17 states before enhancement), while ReachableStatesComputation was computing reachable states (85 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 231.7s OverallTime, 11 OverallIterations, 5 TraceHistogramMax, 159.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2186 SDtfs, 13294 SDslu, 3188 SDs, 0 SdLazy, 28380 SolverSat, 6575 SolverUnsat, 25 SolverUnknown, 0 SolverNotchecked, 115.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7450 GetRequests, 6869 SyntacticMatches, 357 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8609 ImplicationChecksByTransitivity, 74.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54548occurred in iteration=9, 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: 8.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 7195 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 59.0s InterpolantComputationTime, 6353 NumberOfCodeBlocks, 6353 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 9929 ConstructedInterpolants, 633 QuantifiedInterpolants, 34781466 SizeOfPredicates, 37 NumberOfNonLiveVariables, 5978 ConjunctsInSsa, 142 ConjunctsInUnsatCore, 31 InterpolantComputations, 9 PerfectInterpolantSequences, 7801/9282 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/Problem11_label45_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_14-06-45-660.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem11_label45_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_14-06-45-660.csv Completed graceful shutdown