java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label29_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 23:25:23,930 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 23:25:23,934 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 23:25:23,951 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 23:25:23,952 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 23:25:23,953 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 23:25:23,954 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 23:25:23,957 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 23:25:23,960 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 23:25:23,968 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 23:25:23,969 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 23:25:23,969 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 23:25:23,970 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 23:25:23,971 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 23:25:23,974 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 23:25:23,975 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 23:25:23,976 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 23:25:23,977 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 23:25:23,979 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 23:25:23,981 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 23:25:23,982 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 23:25:23,983 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 23:25:23,985 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 23:25:23,985 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 23:25:23,985 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 23:25:23,986 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 23:25:23,987 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 23:25:23,988 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 23:25:23,988 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 23:25:23,989 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 23:25:23,990 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 23:25:23,990 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-24 23:25:23,992 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-24 23:25:24,008 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 23:25:24,008 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 23:25:24,009 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 23:25:24,009 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 23:25:24,009 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 23:25:24,010 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 23:25:24,010 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-24 23:25:24,010 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 23:25:24,010 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-24 23:25:24,010 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 23:25:24,011 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 23:25:24,011 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 23:25:24,011 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 23:25:24,011 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 23:25:24,012 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 23:25:24,012 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 23:25:24,012 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 23:25:24,012 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 23:25:24,013 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 23:25:24,013 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 23:25:24,013 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 23:25:24,013 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 23:25:24,013 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 23:25:24,014 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 23:25:24,014 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 23:25:24,014 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 23:25:24,014 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 23:25:24,014 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 23:25:24,015 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 23:25:24,015 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 23:25:24,015 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 23:25:24,015 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 23:25:24,015 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 23:25:24,016 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 23:25:24,016 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 23:25:24,016 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 23:25:24,079 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 23:25:24,091 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 23:25:24,095 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 23:25:24,096 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 23:25:24,097 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 23:25:24,098 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label29_false-unreach-call.c [2018-10-24 23:25:24,158 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7534b23c9/55fdf08f9d924ce8920f5d96699be090/FLAGff0fa6754 [2018-10-24 23:25:24,791 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 23:25:24,792 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label29_false-unreach-call.c [2018-10-24 23:25:24,805 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7534b23c9/55fdf08f9d924ce8920f5d96699be090/FLAGff0fa6754 [2018-10-24 23:25:24,821 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/7534b23c9/55fdf08f9d924ce8920f5d96699be090 [2018-10-24 23:25:24,832 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 23:25:24,834 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 23:25:24,835 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 23:25:24,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 23:25:24,840 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 23:25:24,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:25:24" (1/1) ... [2018-10-24 23:25:24,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c3249d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:24, skipping insertion in model container [2018-10-24 23:25:24,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:25:24" (1/1) ... [2018-10-24 23:25:24,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 23:25:24,907 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 23:25:25,338 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:25:25,343 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 23:25:25,485 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:25:25,502 INFO L193 MainTranslator]: Completed translation [2018-10-24 23:25:25,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:25 WrapperNode [2018-10-24 23:25:25,503 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 23:25:25,504 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 23:25:25,504 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 23:25:25,504 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 23:25:25,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:25" (1/1) ... [2018-10-24 23:25:25,531 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:25" (1/1) ... [2018-10-24 23:25:25,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 23:25:25,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 23:25:25,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 23:25:25,697 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 23:25:25,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:25" (1/1) ... [2018-10-24 23:25:25,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:25" (1/1) ... [2018-10-24 23:25:25,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:25" (1/1) ... [2018-10-24 23:25:25,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:25" (1/1) ... [2018-10-24 23:25:25,755 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:25" (1/1) ... [2018-10-24 23:25:25,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:25" (1/1) ... [2018-10-24 23:25:25,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:25" (1/1) ... [2018-10-24 23:25:25,817 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 23:25:25,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 23:25:25,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 23:25:25,818 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 23:25:25,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 23:25:25,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 23:25:25,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 23:25:25,885 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 23:25:25,885 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 23:25:25,885 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 23:25:25,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 23:25:25,885 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 23:25:25,886 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 23:25:29,185 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 23:25:29,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:25:29 BoogieIcfgContainer [2018-10-24 23:25:29,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 23:25:29,187 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 23:25:29,187 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 23:25:29,190 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 23:25:29,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:25:24" (1/3) ... [2018-10-24 23:25:29,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58c07783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:25:29, skipping insertion in model container [2018-10-24 23:25:29,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:25" (2/3) ... [2018-10-24 23:25:29,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58c07783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:25:29, skipping insertion in model container [2018-10-24 23:25:29,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:25:29" (3/3) ... [2018-10-24 23:25:29,194 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label29_false-unreach-call.c [2018-10-24 23:25:29,205 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 23:25:29,214 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 23:25:29,233 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 23:25:29,273 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 23:25:29,273 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 23:25:29,273 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 23:25:29,274 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 23:25:29,274 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 23:25:29,274 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 23:25:29,274 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 23:25:29,275 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 23:25:29,302 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states. [2018-10-24 23:25:29,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-24 23:25:29,310 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:25:29,311 INFO L375 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] [2018-10-24 23:25:29,314 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:25:29,320 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:25:29,321 INFO L82 PathProgramCache]: Analyzing trace with hash -246853596, now seen corresponding path program 1 times [2018-10-24 23:25:29,323 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:25:29,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:25:29,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:25:29,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:25:29,379 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:25:29,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:25:29,734 WARN L179 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 23:25:29,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:25:29,763 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:25:29,763 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 23:25:29,764 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:25:29,770 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 23:25:29,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 23:25:29,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 23:25:29,787 INFO L87 Difference]: Start difference. First operand 216 states. Second operand 3 states. [2018-10-24 23:25:32,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:25:32,070 INFO L93 Difference]: Finished difference Result 574 states and 992 transitions. [2018-10-24 23:25:32,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 23:25:32,072 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2018-10-24 23:25:32,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:25:32,093 INFO L225 Difference]: With dead ends: 574 [2018-10-24 23:25:32,093 INFO L226 Difference]: Without dead ends: 356 [2018-10-24 23:25:32,101 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 23:25:32,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2018-10-24 23:25:32,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 356. [2018-10-24 23:25:32,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2018-10-24 23:25:32,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 609 transitions. [2018-10-24 23:25:32,176 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 609 transitions. Word has length 22 [2018-10-24 23:25:32,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:25:32,177 INFO L481 AbstractCegarLoop]: Abstraction has 356 states and 609 transitions. [2018-10-24 23:25:32,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 23:25:32,177 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 609 transitions. [2018-10-24 23:25:32,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2018-10-24 23:25:32,184 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:25:32,184 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 23:25:32,184 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:25:32,185 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:25:32,185 INFO L82 PathProgramCache]: Analyzing trace with hash -409159749, now seen corresponding path program 1 times [2018-10-24 23:25:32,185 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:25:32,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:25:32,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:25:32,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:25:32,187 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:25:32,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:25:32,535 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:25:32,535 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:25:32,536 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 23:25:32,536 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:25:32,538 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 23:25:32,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 23:25:32,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 23:25:32,539 INFO L87 Difference]: Start difference. First operand 356 states and 609 transitions. Second operand 5 states. [2018-10-24 23:25:35,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:25:35,725 INFO L93 Difference]: Finished difference Result 1289 states and 2315 transitions. [2018-10-24 23:25:35,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 23:25:35,726 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 105 [2018-10-24 23:25:35,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:25:35,734 INFO L225 Difference]: With dead ends: 1289 [2018-10-24 23:25:35,735 INFO L226 Difference]: Without dead ends: 939 [2018-10-24 23:25:35,739 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 23:25:35,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2018-10-24 23:25:35,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 926. [2018-10-24 23:25:35,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 926 states. [2018-10-24 23:25:35,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1444 transitions. [2018-10-24 23:25:35,805 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1444 transitions. Word has length 105 [2018-10-24 23:25:35,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:25:35,805 INFO L481 AbstractCegarLoop]: Abstraction has 926 states and 1444 transitions. [2018-10-24 23:25:35,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 23:25:35,806 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1444 transitions. [2018-10-24 23:25:35,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2018-10-24 23:25:35,811 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:25:35,812 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 23:25:35,812 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:25:35,812 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:25:35,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1170323611, now seen corresponding path program 1 times [2018-10-24 23:25:35,813 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:25:35,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:25:35,814 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:25:35,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:25:35,815 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:25:35,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:25:36,150 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:25:36,150 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:25:36,150 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 23:25:36,151 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:25:36,151 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 23:25:36,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 23:25:36,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 23:25:36,152 INFO L87 Difference]: Start difference. First operand 926 states and 1444 transitions. Second operand 6 states. [2018-10-24 23:25:40,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:25:40,734 INFO L93 Difference]: Finished difference Result 2537 states and 4091 transitions. [2018-10-24 23:25:40,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 23:25:40,734 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 121 [2018-10-24 23:25:40,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:25:40,746 INFO L225 Difference]: With dead ends: 2537 [2018-10-24 23:25:40,747 INFO L226 Difference]: Without dead ends: 1617 [2018-10-24 23:25:40,755 INFO L605 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 [2018-10-24 23:25:40,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2018-10-24 23:25:40,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1586. [2018-10-24 23:25:40,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1586 states. [2018-10-24 23:25:40,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 2321 transitions. [2018-10-24 23:25:40,809 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 2321 transitions. Word has length 121 [2018-10-24 23:25:40,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:25:40,810 INFO L481 AbstractCegarLoop]: Abstraction has 1586 states and 2321 transitions. [2018-10-24 23:25:40,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 23:25:40,810 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 2321 transitions. [2018-10-24 23:25:40,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-10-24 23:25:40,816 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:25:40,816 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 23:25:40,817 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:25:40,817 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:25:40,817 INFO L82 PathProgramCache]: Analyzing trace with hash -367068693, now seen corresponding path program 1 times [2018-10-24 23:25:40,817 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:25:40,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:25:40,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:25:40,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:25:40,819 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:25:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:25:41,041 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:25:41,041 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:25:41,042 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 23:25:41,042 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:25:41,042 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 23:25:41,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 23:25:41,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 23:25:41,043 INFO L87 Difference]: Start difference. First operand 1586 states and 2321 transitions. Second operand 6 states. [2018-10-24 23:25:42,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:25:42,265 INFO L93 Difference]: Finished difference Result 3508 states and 5316 transitions. [2018-10-24 23:25:42,276 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 23:25:42,276 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2018-10-24 23:25:42,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:25:42,290 INFO L225 Difference]: With dead ends: 3508 [2018-10-24 23:25:42,290 INFO L226 Difference]: Without dead ends: 1928 [2018-10-24 23:25:42,297 INFO L605 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 [2018-10-24 23:25:42,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1928 states. [2018-10-24 23:25:42,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1928 to 1889. [2018-10-24 23:25:42,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1889 states. [2018-10-24 23:25:42,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1889 states to 1889 states and 2675 transitions. [2018-10-24 23:25:42,378 INFO L78 Accepts]: Start accepts. Automaton has 1889 states and 2675 transitions. Word has length 145 [2018-10-24 23:25:42,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:25:42,379 INFO L481 AbstractCegarLoop]: Abstraction has 1889 states and 2675 transitions. [2018-10-24 23:25:42,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 23:25:42,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1889 states and 2675 transitions. [2018-10-24 23:25:42,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-10-24 23:25:42,388 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:25:42,388 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 23:25:42,388 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:25:42,388 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:25:42,389 INFO L82 PathProgramCache]: Analyzing trace with hash -531546105, now seen corresponding path program 1 times [2018-10-24 23:25:42,389 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:25:42,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:25:42,390 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:25:42,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:25:42,390 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:25:42,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:25:42,850 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-24 23:25:43,308 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 108 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:25:43,308 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:25:43,308 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 23:25:43,309 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 186 with the following transitions: [2018-10-24 23:25:43,312 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [77], [79], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [534], [535], [539], [543], [546], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 23:25:43,362 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 23:25:43,362 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 23:25:44,334 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 23:25:44,336 INFO L272 AbstractInterpreter]: Visited 92 different actions 182 times. Merged at 7 different actions 10 times. Never widened. Found 2 fixpoints after 2 different actions. Largest state had 24 variables. [2018-10-24 23:25:44,379 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:25:44,381 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 23:25:44,381 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:25:44,381 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 23:25:44,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:25:44,399 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 23:25:44,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:25:44,497 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 23:25:44,743 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 108 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:25:44,743 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 23:25:45,225 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 108 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:25:45,252 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-24 23:25:45,252 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 17 [2018-10-24 23:25:45,252 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-24 23:25:45,253 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-24 23:25:45,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-24 23:25:45,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2018-10-24 23:25:45,254 INFO L87 Difference]: Start difference. First operand 1889 states and 2675 transitions. Second operand 15 states. [2018-10-24 23:25:46,297 WARN L179 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 21 [2018-10-24 23:25:47,532 WARN L179 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 32 [2018-10-24 23:25:53,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:25:53,908 INFO L93 Difference]: Finished difference Result 7130 states and 11136 transitions. [2018-10-24 23:25:53,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-10-24 23:25:53,909 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 185 [2018-10-24 23:25:53,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:25:53,947 INFO L225 Difference]: With dead ends: 7130 [2018-10-24 23:25:53,947 INFO L226 Difference]: Without dead ends: 4783 [2018-10-24 23:25:53,990 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 385 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=567, Invalid=1689, Unknown=0, NotChecked=0, Total=2256 [2018-10-24 23:25:53,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4783 states. [2018-10-24 23:25:54,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4783 to 4359. [2018-10-24 23:25:54,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4359 states. [2018-10-24 23:25:54,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4359 states to 4359 states and 5673 transitions. [2018-10-24 23:25:54,159 INFO L78 Accepts]: Start accepts. Automaton has 4359 states and 5673 transitions. Word has length 185 [2018-10-24 23:25:54,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:25:54,160 INFO L481 AbstractCegarLoop]: Abstraction has 4359 states and 5673 transitions. [2018-10-24 23:25:54,160 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-10-24 23:25:54,160 INFO L276 IsEmpty]: Start isEmpty. Operand 4359 states and 5673 transitions. [2018-10-24 23:25:54,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-10-24 23:25:54,170 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:25:54,170 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 23:25:54,171 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:25:54,171 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:25:54,171 INFO L82 PathProgramCache]: Analyzing trace with hash 1824682179, now seen corresponding path program 1 times [2018-10-24 23:25:54,171 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:25:54,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:25:54,174 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:25:54,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:25:54,174 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:25:54,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:25:54,809 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 30 proven. 73 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 23:25:54,810 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:25:54,810 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 23:25:54,810 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 200 with the following transitions: [2018-10-24 23:25:54,811 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [77], [79], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [526], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [610], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 23:25:54,826 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 23:25:54,826 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 23:25:55,090 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 23:25:55,090 INFO L272 AbstractInterpreter]: Visited 104 different actions 104 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 23:25:55,116 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:25:55,116 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 23:25:55,667 INFO L232 lantSequenceWeakener]: Weakened 190 states. On average, predicates are now at 72.76% of their original sizes. [2018-10-24 23:25:55,668 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 23:25:55,919 INFO L413 sIntCurrentIteration]: We have 198 unified AI predicates [2018-10-24 23:25:55,919 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 23:25:55,920 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 23:25:55,920 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2018-10-24 23:25:55,920 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:25:55,921 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 23:25:55,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 23:25:55,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 23:25:55,921 INFO L87 Difference]: Start difference. First operand 4359 states and 5673 transitions. Second operand 6 states. [2018-10-24 23:26:33,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:26:33,896 INFO L93 Difference]: Finished difference Result 8848 states and 11491 transitions. [2018-10-24 23:26:33,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 23:26:33,897 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 199 [2018-10-24 23:26:33,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:26:33,916 INFO L225 Difference]: With dead ends: 8848 [2018-10-24 23:26:33,916 INFO L226 Difference]: Without dead ends: 4500 [2018-10-24 23:26:33,932 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 199 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-24 23:26:33,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4500 states. [2018-10-24 23:26:34,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4500 to 4498. [2018-10-24 23:26:34,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4498 states. [2018-10-24 23:26:34,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4498 states to 4498 states and 5811 transitions. [2018-10-24 23:26:34,036 INFO L78 Accepts]: Start accepts. Automaton has 4498 states and 5811 transitions. Word has length 199 [2018-10-24 23:26:34,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:26:34,036 INFO L481 AbstractCegarLoop]: Abstraction has 4498 states and 5811 transitions. [2018-10-24 23:26:34,036 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 23:26:34,036 INFO L276 IsEmpty]: Start isEmpty. Operand 4498 states and 5811 transitions. [2018-10-24 23:26:34,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2018-10-24 23:26:34,048 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:26:34,048 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-24 23:26:34,049 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:26:34,049 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:26:34,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1224687180, now seen corresponding path program 1 times [2018-10-24 23:26:34,049 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:26:34,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:26:34,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:26:34,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:26:34,051 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:26:34,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:26:34,324 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 7 DAG size of output: 4 [2018-10-24 23:26:35,473 WARN L179 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 13 [2018-10-24 23:26:35,575 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 111 proven. 145 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-10-24 23:26:35,575 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:26:35,575 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 23:26:35,576 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 271 with the following transitions: [2018-10-24 23:26:35,576 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [77], [79], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [498], [499], [503], [507], [511], [515], [519], [523], [526], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [610], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 23:26:35,581 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 23:26:35,582 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 23:26:36,707 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 23:26:36,707 INFO L272 AbstractInterpreter]: Visited 109 different actions 539 times. Merged at 8 different actions 42 times. Widened at 1 different actions 2 times. Found 7 fixpoints after 3 different actions. Largest state had 24 variables. [2018-10-24 23:26:36,745 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:26:36,745 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 23:26:36,746 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:26:36,746 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 23:26:36,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:26:36,761 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 23:26:36,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:26:36,864 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 23:26:37,317 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 247 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-10-24 23:26:37,317 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 23:26:37,585 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 119 proven. 77 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-10-24 23:26:37,606 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-24 23:26:37,606 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5] total 13 [2018-10-24 23:26:37,606 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-24 23:26:37,607 INFO L460 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-10-24 23:26:37,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-10-24 23:26:37,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2018-10-24 23:26:37,608 INFO L87 Difference]: Start difference. First operand 4498 states and 5811 transitions. Second operand 12 states. [2018-10-24 23:26:41,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:26:41,917 INFO L93 Difference]: Finished difference Result 9466 states and 12693 transitions. [2018-10-24 23:26:41,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-24 23:26:41,918 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 270 [2018-10-24 23:26:41,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:26:41,941 INFO L225 Difference]: With dead ends: 9466 [2018-10-24 23:26:41,942 INFO L226 Difference]: Without dead ends: 5148 [2018-10-24 23:26:41,967 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 574 GetRequests, 548 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=169, Invalid=431, Unknown=0, NotChecked=0, Total=600 [2018-10-24 23:26:41,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5148 states. [2018-10-24 23:26:42,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5148 to 4372. [2018-10-24 23:26:42,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4372 states. [2018-10-24 23:26:42,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4372 states to 4372 states and 5168 transitions. [2018-10-24 23:26:42,096 INFO L78 Accepts]: Start accepts. Automaton has 4372 states and 5168 transitions. Word has length 270 [2018-10-24 23:26:42,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:26:42,096 INFO L481 AbstractCegarLoop]: Abstraction has 4372 states and 5168 transitions. [2018-10-24 23:26:42,096 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-10-24 23:26:42,097 INFO L276 IsEmpty]: Start isEmpty. Operand 4372 states and 5168 transitions. [2018-10-24 23:26:42,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2018-10-24 23:26:42,108 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:26:42,109 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 23:26:42,109 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:26:42,109 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:26:42,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1747302249, now seen corresponding path program 1 times [2018-10-24 23:26:42,110 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:26:42,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:26:42,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:26:42,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:26:42,111 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:26:42,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:26:42,576 WARN L179 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 8 [2018-10-24 23:26:42,835 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 51 proven. 241 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-10-24 23:26:42,835 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:26:42,835 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 23:26:42,835 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 316 with the following transitions: [2018-10-24 23:26:42,836 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [77], [79], [82], [90], [98], [106], [114], [122], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [526], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [610], [611], [615], [619], [623], [627], [631], [635], [639], [643], [647], [651], [655], [659], [663], [667], [671], [675], [678], [792], [796], [800], [806], [810], [812], [817], [818], [819], [821], [822] [2018-10-24 23:26:42,839 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 23:26:42,840 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 23:26:43,607 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 23:26:43,607 INFO L272 AbstractInterpreter]: Visited 126 different actions 381 times. Merged at 8 different actions 27 times. Never widened. Found 5 fixpoints after 3 different actions. Largest state had 24 variables. [2018-10-24 23:26:43,616 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:26:43,616 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 23:26:43,616 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:26:43,617 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 23:26:43,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:26:43,626 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 23:26:43,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:26:43,723 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 23:26:44,741 WARN L179 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 35 [2018-10-24 23:26:45,167 WARN L179 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 22 [2018-10-24 23:26:45,786 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 282 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2018-10-24 23:26:45,787 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 23:26:46,804 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-10-24 23:26:46,808 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:26:47,114 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 304 [2018-10-24 23:27:54,927 WARN L177 XnfTransformerHelper]: Simplifying conjuction of 33089 disjunctions. This might take some time... [2018-10-24 23:27:55,252 INFO L193 XnfTransformerHelper]: Simplified to conjuction of 22 disjunctions. [2018-10-24 23:27:55,530 WARN L179 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 50 [2018-10-24 23:27:55,534 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,537 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,542 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,546 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,550 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,555 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,559 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,563 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,566 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,571 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,575 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,578 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,582 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,586 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,589 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,593 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,597 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,601 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,605 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,608 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,612 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,616 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,619 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,623 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,627 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,630 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,634 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,638 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,641 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,644 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,647 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,651 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,654 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,658 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,661 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,665 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,668 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,672 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,675 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,679 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,682 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,686 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,690 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,694 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,697 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,701 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,705 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,709 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,713 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,717 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,721 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,725 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,729 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,733 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,737 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,740 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,744 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,748 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,752 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,756 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,759 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,763 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,766 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,769 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,772 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,775 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,779 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,782 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,785 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,788 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,791 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,794 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,797 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,801 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,804 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,807 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,810 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,814 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,817 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,821 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,825 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,828 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,832 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,836 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,840 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,843 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,847 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,852 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,856 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,860 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,865 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,869 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,872 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,876 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,880 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,884 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,887 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,891 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,895 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,899 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,902 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,906 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,910 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,914 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,917 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,921 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,925 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:55,928 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-10-24 23:27:57,226 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 51 proven. 244 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 23:27:57,247 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-24 23:27:57,248 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 21 [2018-10-24 23:27:57,248 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-24 23:27:57,248 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-24 23:27:57,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-24 23:27:57,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=337, Unknown=0, NotChecked=0, Total=420 [2018-10-24 23:27:57,249 INFO L87 Difference]: Start difference. First operand 4372 states and 5168 transitions. Second operand 16 states. [2018-10-24 23:27:58,443 WARN L179 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 29 [2018-10-24 23:28:27,652 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 39 [2018-10-24 23:28:50,413 WARN L179 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 49 DAG size of output: 30 Received shutdown request... [2018-10-24 23:29:00,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-10-24 23:29:00,084 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 23:29:00,088 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 23:29:00,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:29:00 BoogieIcfgContainer [2018-10-24 23:29:00,089 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 23:29:00,090 INFO L168 Benchmark]: Toolchain (without parser) took 215257.13 ms. Allocated memory was 1.5 GB in the beginning and 5.9 GB in the end (delta: 4.3 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. [2018-10-24 23:29:00,091 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 23:29:00,091 INFO L168 Benchmark]: CACSL2BoogieTranslator took 668.04 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-10-24 23:29:00,092 INFO L168 Benchmark]: Boogie Procedure Inliner took 192.61 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 724.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -810.6 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. [2018-10-24 23:29:00,093 INFO L168 Benchmark]: Boogie Preprocessor took 120.70 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. [2018-10-24 23:29:00,094 INFO L168 Benchmark]: RCFGBuilder took 3368.31 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 133.1 MB). Peak memory consumption was 133.1 MB. Max. memory is 7.1 GB. [2018-10-24 23:29:00,095 INFO L168 Benchmark]: TraceAbstraction took 210902.23 ms. Allocated memory was 2.2 GB in the beginning and 5.9 GB in the end (delta: 3.6 GB). Free memory was 2.0 GB in the beginning and 2.5 GB in the end (delta: -444.8 MB). Peak memory consumption was 3.2 GB. Max. memory is 7.1 GB. [2018-10-24 23:29:00,101 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 668.04 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 192.61 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 724.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -810.6 MB). Peak memory consumption was 19.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.70 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3368.31 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 133.1 MB). Peak memory consumption was 133.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 210902.23 ms. Allocated memory was 2.2 GB in the beginning and 5.9 GB in the end (delta: 3.6 GB). Free memory was 2.0 GB in the beginning and 2.5 GB in the end (delta: -444.8 MB). Peak memory consumption was 3.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 49]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 49). Cancelled while BasicCegarLoop was constructing difference of abstraction (4372states) and FLOYD_HOARE automaton (currently 38 states, 16 states before enhancement),while ReachableStatesComputation was computing reachable states (6742 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 216 locations, 1 error locations. TIMEOUT Result, 210.8s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 125.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 840 SDtfs, 9777 SDslu, 1616 SDs, 0 SdLazy, 15662 SolverSat, 2985 SolverUnsat, 23 SolverUnknown, 0 SolverNotchecked, 104.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 1940 GetRequests, 1783 SyntacticMatches, 12 SemanticMatches, 145 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1244 ImplicationChecksByTransitivity, 11.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4498occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 3.3s AbstIntTime, 4 AbstIntIterations, 1 AbstIntStrong, 0.9971566312475404 AbsIntWeakeningRatio, 0.13131313131313133 AbsIntAvgWeakeningVarsNumRemoved, 15.217171717171718 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 7 MinimizatonAttempts, 1285 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 79.1s InterpolantComputationTime, 2132 NumberOfCodeBlocks, 2132 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2888 ConstructedInterpolants, 126 QuantifiedInterpolants, 7012931 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1370 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 14 InterpolantComputations, 4 PerfectInterpolantSequences, 1388/2178 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown