java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label24_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-14 17:12:08,870 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 17:12:08,873 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 17:12:08,890 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 17:12:08,890 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 17:12:08,891 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 17:12:08,894 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 17:12:08,898 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 17:12:08,903 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 17:12:08,903 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 17:12:08,905 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 17:12:08,905 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 17:12:08,906 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 17:12:08,907 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 17:12:08,908 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 17:12:08,909 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 17:12:08,910 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 17:12:08,912 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 17:12:08,914 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 17:12:08,916 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 17:12:08,917 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 17:12:08,918 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 17:12:08,921 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-14 17:12:08,921 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-14 17:12:08,921 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-14 17:12:08,923 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-14 17:12:08,925 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-14 17:12:08,928 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-14 17:12:08,932 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-14 17:12:08,933 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-14 17:12:08,933 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-14 17:12:08,935 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-14 17:12:08,935 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-14 17:12:08,936 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-14 17:12:08,939 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-14 17:12:08,940 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-14 17:12:08,941 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-14 17:12:08,967 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 17:12:08,967 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 17:12:08,968 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 17:12:08,968 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 17:12:08,968 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 17:12:08,972 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 17:12:08,972 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 17:12:08,973 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 17:12:08,973 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 17:12:08,973 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 17:12:08,973 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 17:12:08,974 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 17:12:08,974 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 17:12:08,975 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 17:12:08,976 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 17:12:08,976 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 17:12:08,976 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 17:12:08,976 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 17:12:08,976 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 17:12:08,977 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 17:12:08,977 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 17:12:08,977 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 17:12:08,979 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 17:12:08,979 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 17:12:08,979 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 17:12:08,979 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 17:12:08,980 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 17:12:08,980 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 17:12:08,980 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 17:12:08,980 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 17:12:08,981 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 17:12:08,982 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 17:12:08,982 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 17:12:09,027 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 17:12:09,041 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 17:12:09,045 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 17:12:09,047 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 17:12:09,047 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 17:12:09,048 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label24_true-unreach-call.c [2018-09-14 17:12:09,392 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee686ee04/d67037fcd2e9480f9dc920f0a98b35da/FLAG5a650ca86 [2018-09-14 17:12:09,680 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 17:12:09,681 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label24_true-unreach-call.c [2018-09-14 17:12:09,710 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee686ee04/d67037fcd2e9480f9dc920f0a98b35da/FLAG5a650ca86 [2018-09-14 17:12:09,733 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee686ee04/d67037fcd2e9480f9dc920f0a98b35da [2018-09-14 17:12:09,747 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 17:12:09,750 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 17:12:09,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 17:12:09,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 17:12:09,760 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 17:12:09,761 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:12:09" (1/1) ... [2018-09-14 17:12:09,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@637f3e23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:12:09, skipping insertion in model container [2018-09-14 17:12:09,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 05:12:09" (1/1) ... [2018-09-14 17:12:09,777 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 17:12:10,473 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:12:10,492 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 17:12:10,697 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 17:12:10,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:12:10 WrapperNode [2018-09-14 17:12:10,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 17:12:10,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 17:12:10,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 17:12:10,774 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 17:12:10,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:12:10" (1/1) ... [2018-09-14 17:12:10,837 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:12:10" (1/1) ... [2018-09-14 17:12:10,965 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 17:12:10,966 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 17:12:10,966 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 17:12:10,966 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 17:12:11,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:12:10" (1/1) ... [2018-09-14 17:12:11,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:12:10" (1/1) ... [2018-09-14 17:12:11,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:12:10" (1/1) ... [2018-09-14 17:12:11,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:12:10" (1/1) ... [2018-09-14 17:12:11,293 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:12:10" (1/1) ... [2018-09-14 17:12:11,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:12:10" (1/1) ... [2018-09-14 17:12:11,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:12:10" (1/1) ... [2018-09-14 17:12:11,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 17:12:11,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 17:12:11,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 17:12:11,346 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 17:12:11,347 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:12:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 17:12:11,426 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 17:12:11,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 17:12:11,426 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-14 17:12:11,427 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-14 17:12:11,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 17:12:11,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 17:12:11,427 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 17:12:11,428 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 17:12:15,956 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 17:12:15,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:12:15 BoogieIcfgContainer [2018-09-14 17:12:15,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 17:12:15,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 17:12:15,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 17:12:15,961 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 17:12:15,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 05:12:09" (1/3) ... [2018-09-14 17:12:15,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60cb560f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:12:15, skipping insertion in model container [2018-09-14 17:12:15,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 05:12:10" (2/3) ... [2018-09-14 17:12:15,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60cb560f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 05:12:15, skipping insertion in model container [2018-09-14 17:12:15,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 05:12:15" (3/3) ... [2018-09-14 17:12:15,966 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label24_true-unreach-call.c [2018-09-14 17:12:15,976 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 17:12:15,987 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 17:12:16,042 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 17:12:16,046 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 17:12:16,046 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 17:12:16,046 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 17:12:16,046 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 17:12:16,046 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 17:12:16,046 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 17:12:16,047 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 17:12:16,047 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 17:12:16,077 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-09-14 17:12:16,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2018-09-14 17:12:16,088 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:12:16,089 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:12:16,091 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:12:16,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1684659980, now seen corresponding path program 1 times [2018-09-14 17:12:16,098 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:12:16,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:12:16,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:12:16,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:12:16,148 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:12:16,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:12:16,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:12:16,650 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:12:16,651 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-14 17:12:16,651 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:12:16,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-14 17:12:16,673 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-14 17:12:16,674 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 17:12:16,677 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-09-14 17:12:19,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:12:19,997 INFO L93 Difference]: Finished difference Result 996 states and 1776 transitions. [2018-09-14 17:12:20,000 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-14 17:12:20,001 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 58 [2018-09-14 17:12:20,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:12:20,026 INFO L225 Difference]: With dead ends: 996 [2018-09-14 17:12:20,027 INFO L226 Difference]: Without dead ends: 697 [2018-09-14 17:12:20,042 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 17:12:20,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states. [2018-09-14 17:12:20,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 481. [2018-09-14 17:12:20,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2018-09-14 17:12:20,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 742 transitions. [2018-09-14 17:12:20,175 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 742 transitions. Word has length 58 [2018-09-14 17:12:20,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:12:20,176 INFO L480 AbstractCegarLoop]: Abstraction has 481 states and 742 transitions. [2018-09-14 17:12:20,176 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-14 17:12:20,176 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 742 transitions. [2018-09-14 17:12:20,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-09-14 17:12:20,193 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:12:20,193 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:12:20,194 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:12:20,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1326176867, now seen corresponding path program 1 times [2018-09-14 17:12:20,195 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:12:20,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:12:20,200 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:12:20,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:12:20,201 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:12:20,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:12:20,590 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:12:20,591 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:12:20,591 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 17:12:20,591 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:12:20,593 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 17:12:20,594 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 17:12:20,594 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 17:12:20,594 INFO L87 Difference]: Start difference. First operand 481 states and 742 transitions. Second operand 6 states. [2018-09-14 17:12:24,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:12:24,571 INFO L93 Difference]: Finished difference Result 1725 states and 2777 transitions. [2018-09-14 17:12:24,571 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 17:12:24,571 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2018-09-14 17:12:24,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:12:24,588 INFO L225 Difference]: With dead ends: 1725 [2018-09-14 17:12:24,589 INFO L226 Difference]: Without dead ends: 1250 [2018-09-14 17:12:24,594 INFO L604 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 [2018-09-14 17:12:24,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2018-09-14 17:12:24,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1231. [2018-09-14 17:12:24,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1231 states. [2018-09-14 17:12:24,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1231 states to 1231 states and 1812 transitions. [2018-09-14 17:12:24,671 INFO L78 Accepts]: Start accepts. Automaton has 1231 states and 1812 transitions. Word has length 131 [2018-09-14 17:12:24,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:12:24,672 INFO L480 AbstractCegarLoop]: Abstraction has 1231 states and 1812 transitions. [2018-09-14 17:12:24,672 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 17:12:24,672 INFO L276 IsEmpty]: Start isEmpty. Operand 1231 states and 1812 transitions. [2018-09-14 17:12:24,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-09-14 17:12:24,682 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:12:24,682 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:12:24,683 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:12:24,683 INFO L82 PathProgramCache]: Analyzing trace with hash -704139656, now seen corresponding path program 1 times [2018-09-14 17:12:24,683 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:12:24,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:12:24,684 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:12:24,684 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:12:24,685 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:12:24,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:12:25,237 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:12:25,238 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:12:25,238 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-14 17:12:25,238 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:12:25,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-14 17:12:25,239 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-14 17:12:25,239 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-09-14 17:12:25,240 INFO L87 Difference]: Start difference. First operand 1231 states and 1812 transitions. Second operand 7 states. [2018-09-14 17:12:30,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:12:30,967 INFO L93 Difference]: Finished difference Result 3656 states and 5587 transitions. [2018-09-14 17:12:30,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-14 17:12:30,971 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 132 [2018-09-14 17:12:30,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:12:30,991 INFO L225 Difference]: With dead ends: 3656 [2018-09-14 17:12:30,991 INFO L226 Difference]: Without dead ends: 2431 [2018-09-14 17:12:31,003 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-09-14 17:12:31,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2431 states. [2018-09-14 17:12:31,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2431 to 2145. [2018-09-14 17:12:31,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2145 states. [2018-09-14 17:12:31,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 2931 transitions. [2018-09-14 17:12:31,107 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 2931 transitions. Word has length 132 [2018-09-14 17:12:31,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:12:31,107 INFO L480 AbstractCegarLoop]: Abstraction has 2145 states and 2931 transitions. [2018-09-14 17:12:31,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-14 17:12:31,108 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 2931 transitions. [2018-09-14 17:12:31,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-09-14 17:12:31,112 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:12:31,113 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:12:31,113 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:12:31,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1415755325, now seen corresponding path program 1 times [2018-09-14 17:12:31,114 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:12:31,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:12:31,115 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:12:31,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:12:31,115 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:12:31,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:12:31,540 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-09-14 17:12:31,541 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:12:31,541 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:12:31,549 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:12:31,550 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:12:31,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:12:31,649 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:12:31,757 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:12:31,758 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:12:32,011 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:12:32,045 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-14 17:12:32,045 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 7 [2018-09-14 17:12:32,046 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:12:32,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:12:32,047 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:12:32,047 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-14 17:12:32,047 INFO L87 Difference]: Start difference. First operand 2145 states and 2931 transitions. Second operand 3 states. [2018-09-14 17:12:34,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:12:34,405 INFO L93 Difference]: Finished difference Result 5172 states and 7209 transitions. [2018-09-14 17:12:34,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:12:34,406 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 175 [2018-09-14 17:12:34,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:12:34,426 INFO L225 Difference]: With dead ends: 5172 [2018-09-14 17:12:34,426 INFO L226 Difference]: Without dead ends: 3033 [2018-09-14 17:12:34,438 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-14 17:12:34,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3033 states. [2018-09-14 17:12:34,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3033 to 3023. [2018-09-14 17:12:34,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3023 states. [2018-09-14 17:12:34,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3023 states to 3023 states and 3962 transitions. [2018-09-14 17:12:34,525 INFO L78 Accepts]: Start accepts. Automaton has 3023 states and 3962 transitions. Word has length 175 [2018-09-14 17:12:34,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:12:34,526 INFO L480 AbstractCegarLoop]: Abstraction has 3023 states and 3962 transitions. [2018-09-14 17:12:34,526 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:12:34,526 INFO L276 IsEmpty]: Start isEmpty. Operand 3023 states and 3962 transitions. [2018-09-14 17:12:34,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2018-09-14 17:12:34,530 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:12:34,530 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:12:34,531 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:12:34,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1419186673, now seen corresponding path program 1 times [2018-09-14 17:12:34,531 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:12:34,532 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:12:34,532 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:12:34,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:12:34,533 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:12:34,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:12:34,706 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:12:34,706 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 17:12:34,707 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 17:12:34,707 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:12:34,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 17:12:34,708 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 17:12:34,708 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:12:34,708 INFO L87 Difference]: Start difference. First operand 3023 states and 3962 transitions. Second operand 3 states. [2018-09-14 17:12:36,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:12:36,579 INFO L93 Difference]: Finished difference Result 6980 states and 9511 transitions. [2018-09-14 17:12:36,581 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 17:12:36,581 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 190 [2018-09-14 17:12:36,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:12:36,601 INFO L225 Difference]: With dead ends: 6980 [2018-09-14 17:12:36,602 INFO L226 Difference]: Without dead ends: 3963 [2018-09-14 17:12:36,614 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 17:12:36,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3963 states. [2018-09-14 17:12:36,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3963 to 3958. [2018-09-14 17:12:36,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3958 states. [2018-09-14 17:12:36,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3958 states to 3958 states and 5019 transitions. [2018-09-14 17:12:36,704 INFO L78 Accepts]: Start accepts. Automaton has 3958 states and 5019 transitions. Word has length 190 [2018-09-14 17:12:36,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:12:36,704 INFO L480 AbstractCegarLoop]: Abstraction has 3958 states and 5019 transitions. [2018-09-14 17:12:36,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 17:12:36,705 INFO L276 IsEmpty]: Start isEmpty. Operand 3958 states and 5019 transitions. [2018-09-14 17:12:36,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2018-09-14 17:12:36,708 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:12:36,709 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 17:12:36,709 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:12:36,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1946138246, now seen corresponding path program 1 times [2018-09-14 17:12:36,710 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:12:36,710 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:12:36,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:12:36,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:12:36,711 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:12:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:12:36,999 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-09-14 17:12:36,999 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:12:36,999 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:12:37,007 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:12:37,007 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:12:37,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:12:37,083 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:12:37,152 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-09-14 17:12:37,153 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:12:37,459 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-09-14 17:12:37,491 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 17:12:37,492 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 7 [2018-09-14 17:12:37,492 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 17:12:37,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-14 17:12:37,493 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-14 17:12:37,493 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-09-14 17:12:37,493 INFO L87 Difference]: Start difference. First operand 3958 states and 5019 transitions. Second operand 4 states. [2018-09-14 17:12:39,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 17:12:39,254 INFO L93 Difference]: Finished difference Result 9698 states and 12630 transitions. [2018-09-14 17:12:39,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-14 17:12:39,254 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 206 [2018-09-14 17:12:39,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 17:12:39,285 INFO L225 Difference]: With dead ends: 9698 [2018-09-14 17:12:39,285 INFO L226 Difference]: Without dead ends: 5746 [2018-09-14 17:12:39,316 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 419 GetRequests, 414 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-09-14 17:12:39,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5746 states. [2018-09-14 17:12:39,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5746 to 5741. [2018-09-14 17:12:39,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5741 states. [2018-09-14 17:12:39,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5741 states to 5741 states and 7264 transitions. [2018-09-14 17:12:39,479 INFO L78 Accepts]: Start accepts. Automaton has 5741 states and 7264 transitions. Word has length 206 [2018-09-14 17:12:39,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 17:12:39,480 INFO L480 AbstractCegarLoop]: Abstraction has 5741 states and 7264 transitions. [2018-09-14 17:12:39,480 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-14 17:12:39,480 INFO L276 IsEmpty]: Start isEmpty. Operand 5741 states and 7264 transitions. [2018-09-14 17:12:39,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2018-09-14 17:12:39,489 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 17:12:39,489 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 17:12:39,490 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 17:12:39,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1151323007, now seen corresponding path program 1 times [2018-09-14 17:12:39,490 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 17:12:39,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:12:39,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:12:39,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 17:12:39,492 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 17:12:39,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:12:40,097 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 106 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:12:40,098 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:12:40,098 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 17:12:40,106 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:12:40,106 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:12:40,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:12:40,194 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:15:03,046 WARN L178 SmtUtils]: Spent 2.37 m on a formula simplification. DAG size of input: 1507 DAG size of output: 162 [2018-09-14 17:15:03,441 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 71 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:15:03,441 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:15:03,805 WARN L178 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2018-09-14 17:15:05,496 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:15:05,533 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 17:15:05,533 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 17:15:05,564 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 17:15:05,565 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 17:15:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 17:15:05,775 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 17:15:06,258 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 16 [2018-09-14 17:15:06,504 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 103 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:15:06,504 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 17:15:06,660 WARN L178 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-09-14 17:15:06,814 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2018-09-14 17:15:07,374 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 174 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 17:15:07,376 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 17:15:07,377 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9, 8, 5] total 31 [2018-09-14 17:15:07,377 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 17:15:07,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-09-14 17:15:07,378 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-09-14 17:15:07,378 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=820, Unknown=0, NotChecked=0, Total=930 [2018-09-14 17:15:07,378 INFO L87 Difference]: Start difference. First operand 5741 states and 7264 transitions. Second operand 17 states. [2018-09-14 17:15:13,315 WARN L178 SmtUtils]: Spent 3.32 s on a formula simplification. DAG size of input: 175 DAG size of output: 45 [2018-09-14 17:15:19,796 WARN L178 SmtUtils]: Spent 6.32 s on a formula simplification. DAG size of input: 181 DAG size of output: 72 [2018-09-14 17:15:24,657 WARN L178 SmtUtils]: Spent 3.39 s on a formula simplification. DAG size of input: 179 DAG size of output: 28 [2018-09-14 17:15:35,760 WARN L178 SmtUtils]: Spent 10.47 s on a formula simplification. DAG size of input: 171 DAG size of output: 40 [2018-09-14 17:15:45,249 WARN L178 SmtUtils]: Spent 6.75 s on a formula simplification. DAG size of input: 183 DAG size of output: 74 [2018-09-14 17:15:51,689 WARN L178 SmtUtils]: Spent 6.04 s on a formula simplification. DAG size of input: 173 DAG size of output: 64 [2018-09-14 17:16:07,580 WARN L178 SmtUtils]: Spent 6.39 s on a formula simplification. DAG size of input: 186 DAG size of output: 77 [2018-09-14 17:16:13,490 WARN L178 SmtUtils]: Spent 3.51 s on a formula simplification. DAG size of input: 185 DAG size of output: 76 [2018-09-14 17:16:31,161 WARN L178 SmtUtils]: Spent 13.00 s on a formula simplification. DAG size of input: 179 DAG size of output: 42 [2018-09-14 17:16:40,183 WARN L178 SmtUtils]: Spent 8.82 s on a formula simplification. DAG size of input: 168 DAG size of output: 37 Received shutdown request... [2018-09-14 17:16:42,341 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-09-14 17:16:42,342 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-14 17:16:42,349 WARN L206 ceAbstractionStarter]: Timeout [2018-09-14 17:16:42,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 05:16:42 BoogieIcfgContainer [2018-09-14 17:16:42,349 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-14 17:16:42,350 INFO L168 Benchmark]: Toolchain (without parser) took 272602.65 ms. Allocated memory was 1.5 GB in the beginning and 2.8 GB in the end (delta: 1.2 GB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -190.5 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-09-14 17:16:42,351 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-14 17:16:42,352 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1021.77 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-09-14 17:16:42,353 INFO L168 Benchmark]: Boogie Procedure Inliner took 191.77 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-14 17:16:42,353 INFO L168 Benchmark]: Boogie Preprocessor took 379.35 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 840.4 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -964.8 MB). Peak memory consumption was 49.5 MB. Max. memory is 7.1 GB. [2018-09-14 17:16:42,354 INFO L168 Benchmark]: RCFGBuilder took 4611.19 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: 182.3 MB). Peak memory consumption was 182.3 MB. Max. memory is 7.1 GB. [2018-09-14 17:16:42,355 INFO L168 Benchmark]: TraceAbstraction took 266391.69 ms. Allocated memory was 2.4 GB in the beginning and 2.8 GB in the end (delta: 377.0 MB). Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 496.9 MB). Peak memory consumption was 873.9 MB. Max. memory is 7.1 GB. [2018-09-14 17:16:42,360 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1021.77 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 191.77 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 379.35 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 840.4 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -964.8 MB). Peak memory consumption was 49.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4611.19 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: 182.3 MB). Peak memory consumption was 182.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 266391.69 ms. Allocated memory was 2.4 GB in the beginning and 2.8 GB in the end (delta: 377.0 MB). Free memory was 2.1 GB in the beginning and 1.6 GB in the end (delta: 496.9 MB). Peak memory consumption was 873.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 159]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 159). Cancelled while BasicCegarLoop was constructing difference of abstraction (5741states) and FLOYD_HOARE automaton (currently 42 states, 17 states before enhancement), while ReachableStatesComputation was computing reachable states (1853 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 266.3s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 114.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1260 SDtfs, 7209 SDslu, 1042 SDs, 0 SdLazy, 8836 SolverSat, 2146 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 36.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1851 GetRequests, 1750 SyntacticMatches, 5 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1090 ImplicationChecksByTransitivity, 220.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5741occurred in iteration=6, 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: 0.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 541 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 149.8s InterpolantComputationTime, 2020 NumberOfCodeBlocks, 2020 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 2884 ConstructedInterpolants, 54 QuantifiedInterpolants, 3974260 SizeOfPredicates, 13 NumberOfNonLiveVariables, 1613 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 772/1339 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_label24_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-14_17-16-42-376.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem11_label24_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-14_17-16-42-376.csv Completed graceful shutdown