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.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem19_label24_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-0fd1304 [2018-10-24 02:23:50,735 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 02:23:50,743 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 02:23:50,762 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 02:23:50,763 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 02:23:50,764 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 02:23:50,766 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 02:23:50,768 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 02:23:50,771 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 02:23:50,773 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 02:23:50,774 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 02:23:50,774 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 02:23:50,778 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 02:23:50,779 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 02:23:50,780 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 02:23:50,787 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 02:23:50,788 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 02:23:50,793 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 02:23:50,797 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 02:23:50,799 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 02:23:50,802 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 02:23:50,805 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 02:23:50,808 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 02:23:50,826 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 02:23:50,853 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 02:23:50,853 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 02:23:50,855 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 02:23:50,855 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 02:23:50,855 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 02:23:50,856 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 02:23:50,856 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 02:23:50,856 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 02:23:50,856 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 02:23:50,856 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 02:23:50,857 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 02:23:50,857 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 02:23:50,858 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 02:23:50,859 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 02:23:50,859 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 02:23:50,859 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 02:23:50,859 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 02:23:50,859 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 02:23:50,860 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 02:23:50,862 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 02:23:50,862 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 02:23:50,862 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 02:23:50,863 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 02:23:50,863 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 02:23:50,864 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 02:23:50,864 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 02:23:50,864 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 02:23:50,864 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 02:23:50,865 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 02:23:50,865 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 02:23:50,865 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 02:23:50,865 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 02:23:50,866 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 02:23:50,866 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 02:23:50,924 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 02:23:50,937 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 02:23:50,941 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 02:23:50,943 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 02:23:50,943 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 02:23:50,944 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label24_true-unreach-call.c [2018-10-24 02:23:51,010 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ed7dde115/01a6fa18fc1b4bacb0915870780f45da/FLAGd1e72f3ca [2018-10-24 02:23:51,922 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 02:23:51,923 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label24_true-unreach-call.c [2018-10-24 02:23:51,973 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ed7dde115/01a6fa18fc1b4bacb0915870780f45da/FLAGd1e72f3ca [2018-10-24 02:23:51,988 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ed7dde115/01a6fa18fc1b4bacb0915870780f45da [2018-10-24 02:23:52,000 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 02:23:52,002 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 02:23:52,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 02:23:52,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 02:23:52,007 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 02:23:52,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:23:51" (1/1) ... [2018-10-24 02:23:52,012 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@432fea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:52, skipping insertion in model container [2018-10-24 02:23:52,012 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:23:51" (1/1) ... [2018-10-24 02:23:52,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 02:23:52,269 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 02:23:54,199 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 02:23:54,204 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 02:23:55,369 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 02:23:55,429 INFO L193 MainTranslator]: Completed translation [2018-10-24 02:23:55,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:55 WrapperNode [2018-10-24 02:23:55,430 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 02:23:55,431 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 02:23:55,431 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 02:23:55,431 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 02:23:55,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:55" (1/1) ... [2018-10-24 02:23:55,541 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:55" (1/1) ... [2018-10-24 02:23:56,232 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 02:23:56,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 02:23:56,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 02:23:56,233 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 02:23:56,245 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:55" (1/1) ... [2018-10-24 02:23:56,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:55" (1/1) ... [2018-10-24 02:23:56,353 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:55" (1/1) ... [2018-10-24 02:23:56,354 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:55" (1/1) ... [2018-10-24 02:23:56,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:55" (1/1) ... [2018-10-24 02:23:56,679 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:55" (1/1) ... [2018-10-24 02:23:56,815 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:55" (1/1) ... [2018-10-24 02:23:56,997 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 02:23:56,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 02:23:56,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 02:23:56,998 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 02:23:56,999 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:55" (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 02:23:57,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 02:23:57,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 02:23:57,070 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-10-24 02:23:57,070 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-10-24 02:23:57,071 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-10-24 02:23:57,071 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-10-24 02:23:57,071 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-24 02:23:57,071 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-24 02:23:57,071 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 02:23:57,072 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 02:23:57,072 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 02:23:57,072 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 02:23:57,072 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 02:23:57,073 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 02:23:57,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 02:23:57,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 02:23:57,074 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 02:23:57,074 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 02:24:15,758 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 02:24:15,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:24:15 BoogieIcfgContainer [2018-10-24 02:24:15,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 02:24:15,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 02:24:15,760 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 02:24:15,764 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 02:24:15,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:23:51" (1/3) ... [2018-10-24 02:24:15,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df30305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:24:15, skipping insertion in model container [2018-10-24 02:24:15,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:55" (2/3) ... [2018-10-24 02:24:15,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df30305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:24:15, skipping insertion in model container [2018-10-24 02:24:15,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:24:15" (3/3) ... [2018-10-24 02:24:15,768 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label24_true-unreach-call.c [2018-10-24 02:24:15,778 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 02:24:15,789 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 02:24:15,807 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 02:24:15,865 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 02:24:15,866 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 02:24:15,866 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 02:24:15,866 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 02:24:15,866 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 02:24:15,866 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 02:24:15,867 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 02:24:15,867 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 02:24:15,925 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-10-24 02:24:15,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-10-24 02:24:15,935 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:24:15,936 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, 1, 1, 1, 1, 1, 1, 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 02:24:15,939 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:24:15,945 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:24:15,946 INFO L82 PathProgramCache]: Analyzing trace with hash -667594212, now seen corresponding path program 1 times [2018-10-24 02:24:15,948 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:24:16,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:24:16,005 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:24:16,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:24:16,005 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:24:16,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:24:16,497 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 02:24:16,500 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:24:16,501 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 02:24:16,501 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:24:16,508 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 02:24:16,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 02:24:16,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 02:24:16,531 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-10-24 02:24:34,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:24:34,403 INFO L93 Difference]: Finished difference Result 5049 states and 9513 transitions. [2018-10-24 02:24:34,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 02:24:34,405 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2018-10-24 02:24:34,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:24:34,456 INFO L225 Difference]: With dead ends: 5049 [2018-10-24 02:24:34,456 INFO L226 Difference]: Without dead ends: 3269 [2018-10-24 02:24:34,469 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 02:24:34,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3269 states. [2018-10-24 02:24:34,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3269 to 3218. [2018-10-24 02:24:34,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3218 states. [2018-10-24 02:24:34,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3218 states to 3218 states and 5997 transitions. [2018-10-24 02:24:34,677 INFO L78 Accepts]: Start accepts. Automaton has 3218 states and 5997 transitions. Word has length 52 [2018-10-24 02:24:34,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:24:34,678 INFO L481 AbstractCegarLoop]: Abstraction has 3218 states and 5997 transitions. [2018-10-24 02:24:34,679 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 02:24:34,679 INFO L276 IsEmpty]: Start isEmpty. Operand 3218 states and 5997 transitions. [2018-10-24 02:24:34,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-10-24 02:24:34,690 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:24:34,690 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:24:34,691 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:24:34,691 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:24:34,691 INFO L82 PathProgramCache]: Analyzing trace with hash -1067454159, now seen corresponding path program 1 times [2018-10-24 02:24:34,691 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:24:34,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:24:34,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:24:34,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:24:34,694 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:24:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:24:35,062 WARN L179 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 02:24:35,453 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:24:35,453 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:24:35,454 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 02:24:35,454 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:24:35,456 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 02:24:35,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 02:24:35,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 02:24:35,457 INFO L87 Difference]: Start difference. First operand 3218 states and 5997 transitions. Second operand 6 states. [2018-10-24 02:25:05,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:25:05,655 INFO L93 Difference]: Finished difference Result 12137 states and 23144 transitions. [2018-10-24 02:25:05,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 02:25:05,655 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2018-10-24 02:25:05,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:25:05,729 INFO L225 Difference]: With dead ends: 12137 [2018-10-24 02:25:05,730 INFO L226 Difference]: Without dead ends: 8925 [2018-10-24 02:25:05,745 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 02:25:05,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8925 states. [2018-10-24 02:25:05,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8925 to 8862. [2018-10-24 02:25:05,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8862 states. [2018-10-24 02:25:05,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8862 states to 8862 states and 14404 transitions. [2018-10-24 02:25:05,981 INFO L78 Accepts]: Start accepts. Automaton has 8862 states and 14404 transitions. Word has length 124 [2018-10-24 02:25:05,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:25:05,982 INFO L481 AbstractCegarLoop]: Abstraction has 8862 states and 14404 transitions. [2018-10-24 02:25:05,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 02:25:05,982 INFO L276 IsEmpty]: Start isEmpty. Operand 8862 states and 14404 transitions. [2018-10-24 02:25:05,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-10-24 02:25:05,987 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:25:05,988 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:25:05,988 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:25:05,988 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:25:05,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1956611073, now seen corresponding path program 1 times [2018-10-24 02:25:05,989 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:25:05,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:25:05,990 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:25:05,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:25:05,990 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:25:06,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:25:06,377 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:25:06,378 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:25:06,378 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 02:25:06,378 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:25:06,379 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 02:25:06,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 02:25:06,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 02:25:06,379 INFO L87 Difference]: Start difference. First operand 8862 states and 14404 transitions. Second operand 5 states. [2018-10-24 02:25:43,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:25:43,757 INFO L93 Difference]: Finished difference Result 32229 states and 52865 transitions. [2018-10-24 02:25:43,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 02:25:43,759 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 126 [2018-10-24 02:25:43,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:25:43,857 INFO L225 Difference]: With dead ends: 32229 [2018-10-24 02:25:43,857 INFO L226 Difference]: Without dead ends: 23373 [2018-10-24 02:25:43,893 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 02:25:43,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23373 states. [2018-10-24 02:25:44,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23373 to 23191. [2018-10-24 02:25:44,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23191 states. [2018-10-24 02:25:44,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23191 states to 23191 states and 32181 transitions. [2018-10-24 02:25:44,409 INFO L78 Accepts]: Start accepts. Automaton has 23191 states and 32181 transitions. Word has length 126 [2018-10-24 02:25:44,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:25:44,409 INFO L481 AbstractCegarLoop]: Abstraction has 23191 states and 32181 transitions. [2018-10-24 02:25:44,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 02:25:44,409 INFO L276 IsEmpty]: Start isEmpty. Operand 23191 states and 32181 transitions. [2018-10-24 02:25:44,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-10-24 02:25:44,414 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:25:44,414 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:25:44,414 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:25:44,414 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:25:44,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1540904621, now seen corresponding path program 1 times [2018-10-24 02:25:44,415 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:25:44,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:25:44,416 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:25:44,416 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:25:44,416 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:25:44,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:25:44,725 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 02:25:44,725 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 02:25:44,725 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 02:25:44,726 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:25:44,726 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 02:25:44,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 02:25:44,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 02:25:44,727 INFO L87 Difference]: Start difference. First operand 23191 states and 32181 transitions. Second operand 5 states. [2018-10-24 02:26:11,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 02:26:11,339 INFO L93 Difference]: Finished difference Result 70920 states and 102553 transitions. [2018-10-24 02:26:11,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 02:26:11,342 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 157 [2018-10-24 02:26:11,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 02:26:11,535 INFO L225 Difference]: With dead ends: 70920 [2018-10-24 02:26:11,536 INFO L226 Difference]: Without dead ends: 47735 [2018-10-24 02:26:11,605 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 02:26:11,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47735 states. [2018-10-24 02:26:12,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47735 to 46960. [2018-10-24 02:26:12,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46960 states. [2018-10-24 02:26:12,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46960 states to 46960 states and 61431 transitions. [2018-10-24 02:26:12,515 INFO L78 Accepts]: Start accepts. Automaton has 46960 states and 61431 transitions. Word has length 157 [2018-10-24 02:26:12,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 02:26:12,515 INFO L481 AbstractCegarLoop]: Abstraction has 46960 states and 61431 transitions. [2018-10-24 02:26:12,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 02:26:12,516 INFO L276 IsEmpty]: Start isEmpty. Operand 46960 states and 61431 transitions. [2018-10-24 02:26:12,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2018-10-24 02:26:12,524 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 02:26:12,526 INFO L375 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, 2, 2, 2, 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] [2018-10-24 02:26:12,526 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 02:26:12,526 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:26:12,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1193629279, now seen corresponding path program 1 times [2018-10-24 02:26:12,528 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 02:26:12,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:26:12,529 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 02:26:12,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 02:26:12,529 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 02:26:12,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 02:26:12,825 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 02:26:13,148 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 90 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 02:26:13,149 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 02:26:13,149 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 02:26:13,150 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 206 with the following transitions: [2018-10-24 02:26:13,152 INFO L202 CegarAbsIntRunner]: [0], [1], [5227], [5234], [5242], [5250], [5258], [5266], [5274], [5282], [5290], [5298], [5306], [5314], [5322], [5330], [5338], [5346], [5354], [5362], [5370], [5378], [5386], [5394], [5402], [5410], [5418], [5426], [5434], [5442], [5450], [5458], [5466], [5474], [5482], [5490], [5498], [5506], [5514], [5522], [5530], [5538], [5542], [5544], [5547], [5555], [5563], [5571], [5579], [5587], [5595], [5603], [5611], [5619], [5627], [5635], [5643], [5651], [5659], [5667], [5675], [5683], [5691], [5699], [5707], [5715], [5727], [5731], [5734], [5739], [5741], [5742], [5746], [5750], [5754], [5758], [5762], [5766], [5769], [6802], [6806], [6810], [6816], [6820], [6822], [6837], [6838], [6839], [6841], [6842] [2018-10-24 02:26:13,250 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 02:26:13,250 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 02:26:16,228 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 02:26:16,230 INFO L272 AbstractInterpreter]: Visited 84 different actions 84 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-24 02:26:16,242 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 02:26:16,242 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 02:26:18,264 INFO L232 lantSequenceWeakener]: Weakened 195 states. On average, predicates are now at 75.76% of their original sizes. [2018-10-24 02:26:18,265 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 02:26:18,731 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 02:26:18,732 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 02:26:18,732 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 02:26:18,732 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 02:26:18,733 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 02:26:18,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 02:26:18,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 02:26:18,734 INFO L87 Difference]: Start difference. First operand 46960 states and 61431 transitions. Second operand 7 states. [2018-10-24 02:26:22,807 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-10-24 02:27:27,672 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 02:27:27,673 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 02:27:27,679 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 02:27:27,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:27:27 BoogieIcfgContainer [2018-10-24 02:27:27,679 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 02:27:27,680 INFO L168 Benchmark]: Toolchain (without parser) took 215679.51 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: -22.1 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-10-24 02:27:27,682 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-10-24 02:27:27,682 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3426.99 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. [2018-10-24 02:27:27,683 INFO L168 Benchmark]: Boogie Procedure Inliner took 802.09 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 854.1 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. [2018-10-24 02:27:27,684 INFO L168 Benchmark]: Boogie Preprocessor took 763.88 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 53.2 MB). Peak memory consumption was 53.2 MB. Max. memory is 7.1 GB. [2018-10-24 02:27:27,685 INFO L168 Benchmark]: RCFGBuilder took 18761.89 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 179.8 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 482.1 MB). Peak memory consumption was 669.3 MB. Max. memory is 7.1 GB. [2018-10-24 02:27:27,686 INFO L168 Benchmark]: TraceAbstraction took 191919.46 ms. Allocated memory was 2.6 GB in the beginning and 4.1 GB in the end (delta: 1.5 GB). Free memory was 1.7 GB in the beginning and 1.4 GB in the end (delta: 307.4 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-10-24 02:27:27,692 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 3426.99 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 392.7 MB). Peak memory consumption was 392.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 802.09 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 854.1 MB). Free memory was 1.0 GB in the beginning and 2.3 GB in the end (delta: -1.3 GB). Peak memory consumption was 117.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 763.88 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 53.2 MB). Peak memory consumption was 53.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 18761.89 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 179.8 MB). Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 482.1 MB). Peak memory consumption was 669.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 191919.46 ms. Allocated memory was 2.6 GB in the beginning and 4.1 GB in the end (delta: 1.5 GB). Free memory was 1.7 GB in the beginning and 1.4 GB in the end (delta: 307.4 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 151]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 151). Cancelled while BasicCegarLoop was constructing difference of abstraction (46960states) and FLOYD_HOARE automaton (currently 7 states, 7 states before enhancement),while ReachableStatesComputation was computing reachable states (19289 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 191.8s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 181.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2476 SDtfs, 25587 SDslu, 3039 SDs, 0 SdLazy, 39230 SolverSat, 9734 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 135.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 239 GetRequests, 210 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46960occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 3.0s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9954449472096529 AbsIntWeakeningRatio, 0.13725490196078433 AbsIntAvgWeakeningVarsNumRemoved, 1031.2401960784314 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 4 MinimizatonAttempts, 1071 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 664 NumberOfCodeBlocks, 664 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 659 ConstructedInterpolants, 0 QuantifiedInterpolants, 257708 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 230/297 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown