java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label05_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-25 01:26:13,656 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-25 01:26:13,662 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-25 01:26:13,684 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-25 01:26:13,685 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-25 01:26:13,688 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-25 01:26:13,690 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-25 01:26:13,693 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-25 01:26:13,696 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-25 01:26:13,703 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-25 01:26:13,704 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-25 01:26:13,708 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-25 01:26:13,709 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-25 01:26:13,713 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-25 01:26:13,715 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-25 01:26:13,716 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-25 01:26:13,717 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-25 01:26:13,721 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-25 01:26:13,727 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-25 01:26:13,731 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-25 01:26:13,733 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-25 01:26:13,736 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-25 01:26:13,739 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-25 01:26:13,750 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-25 01:26:13,779 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-25 01:26:13,780 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-25 01:26:13,780 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-25 01:26:13,781 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-25 01:26:13,781 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-25 01:26:13,781 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-25 01:26:13,781 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-25 01:26:13,781 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-25 01:26:13,782 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-25 01:26:13,782 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-25 01:26:13,782 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-25 01:26:13,782 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-25 01:26:13,782 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-25 01:26:13,783 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-25 01:26:13,784 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-25 01:26:13,784 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-25 01:26:13,784 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-25 01:26:13,785 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-25 01:26:13,785 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-25 01:26:13,785 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-25 01:26:13,785 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-25 01:26:13,785 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-25 01:26:13,786 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-25 01:26:13,788 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-25 01:26:13,788 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-25 01:26:13,788 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-25 01:26:13,788 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 01:26:13,788 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-25 01:26:13,789 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-25 01:26:13,789 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-25 01:26:13,789 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-25 01:26:13,789 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-25 01:26:13,789 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-25 01:26:13,789 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-25 01:26:13,790 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-25 01:26:13,790 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-25 01:26:13,835 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-25 01:26:13,851 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-25 01:26:13,854 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-25 01:26:13,856 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-25 01:26:13,857 INFO L276 PluginConnector]: CDTParser initialized [2018-10-25 01:26:13,857 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label05_true-unreach-call.c [2018-10-25 01:26:13,920 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/16584afb3/4c93948de16a40a19393ff84af6ef1b9/FLAGf5a36972a [2018-10-25 01:26:14,604 INFO L298 CDTParser]: Found 1 translation units. [2018-10-25 01:26:14,604 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label05_true-unreach-call.c [2018-10-25 01:26:14,639 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/16584afb3/4c93948de16a40a19393ff84af6ef1b9/FLAGf5a36972a [2018-10-25 01:26:14,659 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/16584afb3/4c93948de16a40a19393ff84af6ef1b9 [2018-10-25 01:26:14,671 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-25 01:26:14,672 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-25 01:26:14,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-25 01:26:14,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-25 01:26:14,678 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-25 01:26:14,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 01:26:14" (1/1) ... [2018-10-25 01:26:14,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28a8effd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:26:14, skipping insertion in model container [2018-10-25 01:26:14,682 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 01:26:14" (1/1) ... [2018-10-25 01:26:14,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-25 01:26:14,786 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-25 01:26:15,368 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 01:26:15,376 INFO L189 MainTranslator]: Completed pre-run [2018-10-25 01:26:15,563 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 01:26:15,583 INFO L193 MainTranslator]: Completed translation [2018-10-25 01:26:15,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:26:15 WrapperNode [2018-10-25 01:26:15,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-25 01:26:15,585 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-25 01:26:15,585 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-25 01:26:15,585 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-25 01:26:15,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:26:15" (1/1) ... [2018-10-25 01:26:15,631 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:26:15" (1/1) ... [2018-10-25 01:26:15,901 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-25 01:26:15,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-25 01:26:15,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-25 01:26:15,902 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-25 01:26:15,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:26:15" (1/1) ... [2018-10-25 01:26:15,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:26:15" (1/1) ... [2018-10-25 01:26:15,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:26:15" (1/1) ... [2018-10-25 01:26:15,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:26:15" (1/1) ... [2018-10-25 01:26:15,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:26:15" (1/1) ... [2018-10-25 01:26:15,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:26:15" (1/1) ... [2018-10-25 01:26:16,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:26:15" (1/1) ... [2018-10-25 01:26:16,041 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-25 01:26:16,042 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-25 01:26:16,042 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-25 01:26:16,042 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-25 01:26:16,043 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:26:15" (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 [2018-10-25 01:26:16,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-25 01:26:16,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-25 01:26:16,118 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-25 01:26:16,119 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-25 01:26:16,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-25 01:26:16,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-25 01:26:16,120 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-25 01:26:16,120 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-25 01:26:21,726 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-25 01:26:21,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:26:21 BoogieIcfgContainer [2018-10-25 01:26:21,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-25 01:26:21,729 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-25 01:26:21,730 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-25 01:26:21,736 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-25 01:26:21,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 01:26:14" (1/3) ... [2018-10-25 01:26:21,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ccfbf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 01:26:21, skipping insertion in model container [2018-10-25 01:26:21,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:26:15" (2/3) ... [2018-10-25 01:26:21,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ccfbf2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 01:26:21, skipping insertion in model container [2018-10-25 01:26:21,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:26:21" (3/3) ... [2018-10-25 01:26:21,741 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label05_true-unreach-call.c [2018-10-25 01:26:21,749 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-25 01:26:21,759 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-25 01:26:21,781 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-25 01:26:21,824 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-25 01:26:21,825 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-25 01:26:21,825 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-25 01:26:21,825 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-25 01:26:21,825 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-25 01:26:21,825 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-25 01:26:21,826 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-25 01:26:21,826 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-25 01:26:21,856 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-10-25 01:26:21,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2018-10-25 01:26:21,868 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:26:21,869 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:26:21,872 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:26:21,878 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:26:21,878 INFO L82 PathProgramCache]: Analyzing trace with hash 620538673, now seen corresponding path program 1 times [2018-10-25 01:26:21,880 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:26:21,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:26:21,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:26:21,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:26:21,936 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:26:22,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:26:22,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:26:22,540 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:26:22,540 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-25 01:26:22,541 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:26:22,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-25 01:26:22,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-25 01:26:22,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 01:26:22,568 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-10-25 01:26:26,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:26:26,117 INFO L93 Difference]: Finished difference Result 985 states and 1761 transitions. [2018-10-25 01:26:26,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-25 01:26:26,120 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 71 [2018-10-25 01:26:26,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:26:26,143 INFO L225 Difference]: With dead ends: 985 [2018-10-25 01:26:26,144 INFO L226 Difference]: Without dead ends: 686 [2018-10-25 01:26:26,153 INFO L605 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 [2018-10-25 01:26:26,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2018-10-25 01:26:26,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 686. [2018-10-25 01:26:26,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 686 states. [2018-10-25 01:26:26,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 1046 transitions. [2018-10-25 01:26:26,259 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 1046 transitions. Word has length 71 [2018-10-25 01:26:26,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:26:26,260 INFO L481 AbstractCegarLoop]: Abstraction has 686 states and 1046 transitions. [2018-10-25 01:26:26,260 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-25 01:26:26,260 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 1046 transitions. [2018-10-25 01:26:26,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-10-25 01:26:26,274 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:26:26,274 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, 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] [2018-10-25 01:26:26,274 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:26:26,278 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:26:26,278 INFO L82 PathProgramCache]: Analyzing trace with hash -2040216429, now seen corresponding path program 1 times [2018-10-25 01:26:26,278 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:26:26,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:26:26,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:26:26,280 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:26:26,280 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:26:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:26:26,705 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:26:26,706 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:26:26,706 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 01:26:26,706 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:26:26,709 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 01:26:26,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 01:26:26,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-25 01:26:26,710 INFO L87 Difference]: Start difference. First operand 686 states and 1046 transitions. Second operand 6 states. [2018-10-25 01:26:32,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:26:32,287 INFO L93 Difference]: Finished difference Result 2339 states and 3736 transitions. [2018-10-25 01:26:32,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-25 01:26:32,290 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 152 [2018-10-25 01:26:32,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:26:32,308 INFO L225 Difference]: With dead ends: 2339 [2018-10-25 01:26:32,308 INFO L226 Difference]: Without dead ends: 1659 [2018-10-25 01:26:32,314 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-25 01:26:32,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2018-10-25 01:26:32,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1642. [2018-10-25 01:26:32,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1642 states. [2018-10-25 01:26:32,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 2356 transitions. [2018-10-25 01:26:32,423 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 2356 transitions. Word has length 152 [2018-10-25 01:26:32,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:26:32,423 INFO L481 AbstractCegarLoop]: Abstraction has 1642 states and 2356 transitions. [2018-10-25 01:26:32,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 01:26:32,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 2356 transitions. [2018-10-25 01:26:32,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2018-10-25 01:26:32,439 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:26:32,439 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, 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] [2018-10-25 01:26:32,440 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:26:32,440 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:26:32,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1556450923, now seen corresponding path program 1 times [2018-10-25 01:26:32,441 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:26:32,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:26:32,442 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:26:32,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:26:32,442 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:26:32,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:26:33,258 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 58 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:26:33,258 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:26:33,259 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:26:33,260 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 204 with the following transitions: [2018-10-25 01:26:33,262 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [762], [766], [769], [772], [776], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-25 01:26:33,320 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:26:33,320 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:26:34,696 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 01:26:34,697 INFO L272 AbstractInterpreter]: Visited 140 different actions 406 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 28 variables. [2018-10-25 01:26:34,744 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:26:34,746 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 01:26:34,747 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:26:34,747 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 01:26:34,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:26:34,762 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 01:26:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:26:34,900 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 01:26:35,151 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:26:35,152 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 01:26:35,537 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:26:35,569 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-10-25 01:26:35,570 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 10 [2018-10-25 01:26:35,570 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:26:35,571 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 01:26:35,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 01:26:35,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-10-25 01:26:35,572 INFO L87 Difference]: Start difference. First operand 1642 states and 2356 transitions. Second operand 3 states. [2018-10-25 01:26:39,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:26:39,196 INFO L93 Difference]: Finished difference Result 4776 states and 7052 transitions. [2018-10-25 01:26:39,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 01:26:39,201 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 203 [2018-10-25 01:26:39,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:26:39,227 INFO L225 Difference]: With dead ends: 4776 [2018-10-25 01:26:39,228 INFO L226 Difference]: Without dead ends: 3140 [2018-10-25 01:26:39,239 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 407 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2018-10-25 01:26:39,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3140 states. [2018-10-25 01:26:39,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3140 to 3127. [2018-10-25 01:26:39,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3127 states. [2018-10-25 01:26:39,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 4357 transitions. [2018-10-25 01:26:39,350 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 4357 transitions. Word has length 203 [2018-10-25 01:26:39,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:26:39,351 INFO L481 AbstractCegarLoop]: Abstraction has 3127 states and 4357 transitions. [2018-10-25 01:26:39,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 01:26:39,351 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 4357 transitions. [2018-10-25 01:26:39,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2018-10-25 01:26:39,362 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:26:39,362 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:26:39,363 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:26:39,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:26:39,364 INFO L82 PathProgramCache]: Analyzing trace with hash -937553027, now seen corresponding path program 1 times [2018-10-25 01:26:39,364 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:26:39,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:26:39,365 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:26:39,366 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:26:39,366 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:26:39,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:26:39,702 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 01:26:40,128 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 128 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-25 01:26:40,129 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:26:40,129 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:26:40,129 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 240 with the following transitions: [2018-10-25 01:26:40,130 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [495], [499], [503], [506], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [594], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-25 01:26:40,135 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:26:40,135 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:26:40,636 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 01:26:40,637 INFO L272 AbstractInterpreter]: Visited 100 different actions 100 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-10-25 01:26:40,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:26:40,659 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 01:26:41,486 INFO L232 lantSequenceWeakener]: Weakened 230 states. On average, predicates are now at 73.87% of their original sizes. [2018-10-25 01:26:41,486 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 01:26:41,759 INFO L413 sIntCurrentIteration]: We have 238 unified AI predicates [2018-10-25 01:26:41,760 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 01:26:41,761 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 01:26:41,761 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-10-25 01:26:41,761 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:26:41,762 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 01:26:41,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 01:26:41,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 01:26:41,763 INFO L87 Difference]: Start difference. First operand 3127 states and 4357 transitions. Second operand 6 states. [2018-10-25 01:27:19,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:27:19,683 INFO L93 Difference]: Finished difference Result 6250 states and 8716 transitions. [2018-10-25 01:27:19,683 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-25 01:27:19,683 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 239 [2018-10-25 01:27:19,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:27:19,699 INFO L225 Difference]: With dead ends: 6250 [2018-10-25 01:27:19,700 INFO L226 Difference]: Without dead ends: 3129 [2018-10-25 01:27:19,710 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 239 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-25 01:27:19,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3129 states. [2018-10-25 01:27:19,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3129 to 3127. [2018-10-25 01:27:19,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3127 states. [2018-10-25 01:27:19,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 4342 transitions. [2018-10-25 01:27:19,787 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 4342 transitions. Word has length 239 [2018-10-25 01:27:19,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:27:19,788 INFO L481 AbstractCegarLoop]: Abstraction has 3127 states and 4342 transitions. [2018-10-25 01:27:19,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 01:27:19,788 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 4342 transitions. [2018-10-25 01:27:19,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2018-10-25 01:27:19,797 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:27:19,798 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:27:19,798 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:27:19,798 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:27:19,799 INFO L82 PathProgramCache]: Analyzing trace with hash 22969815, now seen corresponding path program 1 times [2018-10-25 01:27:19,799 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:27:19,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:27:19,800 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:27:19,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:27:19,800 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:27:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:27:20,331 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-25 01:27:21,006 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 4 proven. 131 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2018-10-25 01:27:21,007 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:27:21,007 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:27:21,007 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 284 with the following transitions: [2018-10-25 01:27:21,007 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [9], [17], [25], [33], [41], [49], [57], [65], [73], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [469], [471], [474], [482], [490], [495], [499], [503], [507], [511], [515], [519], [523], [527], [531], [535], [539], [543], [547], [551], [555], [559], [563], [567], [571], [575], [579], [583], [587], [591], [594], [595], [599], [603], [607], [611], [615], [626], [630], [634], [638], [642], [646], [650], [654], [658], [662], [666], [677], [688], [692], [696], [707], [710], [1084], [1088], [1092], [1098], [1102], [1104], [1109], [1110], [1111], [1113], [1114] [2018-10-25 01:27:21,013 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:27:21,013 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:27:22,240 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 01:27:22,241 INFO L272 AbstractInterpreter]: Visited 126 different actions 374 times. Merged at 7 different actions 20 times. Never widened. Found 3 fixpoints after 3 different actions. Largest state had 28 variables. [2018-10-25 01:27:22,246 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:27:22,246 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 01:27:22,246 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:27:22,246 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 01:27:22,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:27:22,256 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 01:27:22,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:27:22,359 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 01:27:49,300 WARN L179 SmtUtils]: Spent 26.59 s on a formula simplification. DAG size of input: 152 DAG size of output: 46 [2018-10-25 01:28:06,332 WARN L179 SmtUtils]: Spent 16.52 s on a formula simplification. DAG size of input: 125 DAG size of output: 55 [2018-10-25 01:28:06,557 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 129 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:28:06,557 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 01:28:06,964 WARN L179 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2018-10-25 01:28:07,554 WARN L179 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 19 [2018-10-25 01:28:07,646 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 27 [2018-10-25 01:28:08,402 WARN L179 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 41 [2018-10-25 01:28:08,407 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:08,807 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:08,917 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:08,998 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:09,350 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:09,398 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:09,457 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:09,544 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:09,681 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:10,043 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:10,179 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:10,237 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:10,326 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:10,395 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:10,439 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:10,486 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:10,531 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:10,628 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:10,672 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:10,717 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:11,114 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:11,270 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:11,317 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:11,465 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:11,511 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:11,566 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:11,618 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:11,666 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:11,877 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:11,925 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:11,975 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:12,319 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:12,383 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:12,452 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:12,518 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:12,605 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:12,698 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:12,746 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:12,796 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:12,861 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:12,918 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:12,973 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:13,024 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:13,071 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:13,118 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:13,166 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:13,212 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:13,266 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:13,318 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:13,363 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:13,410 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:13,461 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:13,546 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:13,596 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:13,651 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:13,705 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:13,759 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:13,812 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:13,879 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:14,304 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:14,583 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:14,633 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:14,747 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:14,817 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:14,897 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:14,978 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:15,061 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:15,107 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:15,482 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:15,526 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:15,620 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:15,665 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:15,709 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:15,757 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:15,800 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:15,848 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:15,897 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:15,942 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:15,985 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:16,029 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:16,079 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:16,124 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:16,170 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:16,217 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:16,261 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:16,308 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:16,354 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 01:28:17,353 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 221 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:28:17,376 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-25 01:28:17,377 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 6] total 18 [2018-10-25 01:28:17,377 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-25 01:28:17,378 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-10-25 01:28:17,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-10-25 01:28:17,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2018-10-25 01:28:17,379 INFO L87 Difference]: Start difference. First operand 3127 states and 4342 transitions. Second operand 15 states. [2018-10-25 01:28:17,668 WARN L179 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 19 [2018-10-25 01:28:23,422 WARN L179 SmtUtils]: Spent 4.57 s on a formula simplification. DAG size of input: 58 DAG size of output: 16 [2018-10-25 01:28:24,999 WARN L179 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 62 DAG size of output: 19 [2018-10-25 01:28:26,998 WARN L179 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 18 [2018-10-25 01:28:35,904 WARN L179 SmtUtils]: Spent 1.38 s on a formula simplification that was a NOOP. DAG size: 59 [2018-10-25 01:28:41,299 WARN L179 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2018-10-25 01:28:49,570 WARN L179 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 51 DAG size of output: 15 [2018-10-25 01:29:00,495 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 18 [2018-10-25 01:29:27,509 WARN L179 SmtUtils]: Spent 16.10 s on a formula simplification. DAG size of input: 68 DAG size of output: 46 [2018-10-25 01:29:44,130 WARN L179 SmtUtils]: Spent 10.09 s on a formula simplification. DAG size of input: 61 DAG size of output: 18 [2018-10-25 01:30:09,212 WARN L179 SmtUtils]: Spent 20.19 s on a formula simplification. DAG size of input: 65 DAG size of output: 52 Received shutdown request... [2018-10-25 01:30:21,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2018-10-25 01:30:21,027 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-25 01:30:21,031 WARN L205 ceAbstractionStarter]: Timeout [2018-10-25 01:30:21,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 01:30:21 BoogieIcfgContainer [2018-10-25 01:30:21,031 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-25 01:30:21,032 INFO L168 Benchmark]: Toolchain (without parser) took 246360.86 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 2.4 GB in the end (delta: -1.0 GB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-10-25 01:30:21,033 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-25 01:30:21,034 INFO L168 Benchmark]: CACSL2BoogieTranslator took 911.20 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: 55.5 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. [2018-10-25 01:30:21,035 INFO L168 Benchmark]: Boogie Procedure Inliner took 316.45 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 723.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -805.4 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2018-10-25 01:30:21,036 INFO L168 Benchmark]: Boogie Preprocessor took 139.79 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-25 01:30:21,036 INFO L168 Benchmark]: RCFGBuilder took 5686.58 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 189.6 MB). Peak memory consumption was 189.6 MB. Max. memory is 7.1 GB. [2018-10-25 01:30:21,037 INFO L168 Benchmark]: TraceAbstraction took 239301.91 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -474.2 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-10-25 01:30:21,043 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 911.20 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: 55.5 MB). Peak memory consumption was 55.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 316.45 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 723.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -805.4 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 139.79 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 5686.58 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 189.6 MB). Peak memory consumption was 189.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 239301.91 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -474.2 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 198]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 198). Cancelled while BasicCegarLoop was constructing difference of abstraction (3127states) and FLOYD_HOARE automaton (currently 74 states, 15 states before enhancement),while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 82 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 239.2s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 174.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1275 SDtfs, 8635 SDslu, 1751 SDs, 0 SdLazy, 13163 SolverSat, 2070 SolverUnsat, 14 SolverUnknown, 0 SolverNotchecked, 94.9s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 1312 GetRequests, 1119 SyntacticMatches, 92 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2469 ImplicationChecksByTransitivity, 121.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3127occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 3.2s AbstIntTime, 3 AbstIntIterations, 1 AbstIntStrong, 0.9980085110967465 AbsIntWeakeningRatio, 0.11764705882352941 AbsIntAvgWeakeningVarsNumRemoved, 18.428571428571427 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 4 MinimizatonAttempts, 32 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 58.7s InterpolantComputationTime, 1434 NumberOfCodeBlocks, 1434 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1911 ConstructedInterpolants, 106 QuantifiedInterpolants, 4539879 SizeOfPredicates, 5 NumberOfNonLiveVariables, 855 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 825/1126 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown