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/Problem15_label50_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 05:38:23,115 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 05:38:23,117 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 05:38:23,129 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 05:38:23,129 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 05:38:23,130 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 05:38:23,132 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 05:38:23,134 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 05:38:23,136 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 05:38:23,136 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 05:38:23,139 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 05:38:23,140 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 05:38:23,141 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 05:38:23,142 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 05:38:23,145 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 05:38:23,146 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 05:38:23,147 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 05:38:23,149 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 05:38:23,154 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 05:38:23,155 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 05:38:23,156 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 05:38:23,163 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 05:38:23,168 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 05:38:23,168 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 05:38:23,168 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 05:38:23,171 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 05:38:23,172 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 05:38:23,173 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 05:38:23,178 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 05:38:23,179 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 05:38:23,179 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 05:38:23,180 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-27 05:38:23,184 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 [2018-10-27 05:38:23,209 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 05:38:23,209 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 05:38:23,210 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 05:38:23,210 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 05:38:23,210 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 05:38:23,211 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 05:38:23,211 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-27 05:38:23,211 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 05:38:23,211 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 05:38:23,212 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 05:38:23,212 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 05:38:23,212 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 05:38:23,212 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 05:38:23,212 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 05:38:23,213 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 05:38:23,213 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 05:38:23,213 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 05:38:23,214 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 05:38:23,214 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 05:38:23,214 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 05:38:23,214 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 05:38:23,214 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 05:38:23,215 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 05:38:23,215 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 05:38:23,215 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 05:38:23,215 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 05:38:23,216 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 05:38:23,216 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 05:38:23,216 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 05:38:23,216 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 05:38:23,216 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 05:38:23,217 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 05:38:23,217 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 05:38:23,217 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 05:38:23,217 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 05:38:23,217 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 05:38:23,265 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 05:38:23,281 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 05:38:23,285 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 05:38:23,286 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 05:38:23,287 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 05:38:23,287 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label50_false-unreach-call.c [2018-10-27 05:38:23,365 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3e9c0cb5d/c2b319e9990d469e89c6899e48f4f986/FLAG795c3b1c2 [2018-10-27 05:38:24,017 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 05:38:24,018 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label50_false-unreach-call.c [2018-10-27 05:38:24,036 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3e9c0cb5d/c2b319e9990d469e89c6899e48f4f986/FLAG795c3b1c2 [2018-10-27 05:38:24,051 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/3e9c0cb5d/c2b319e9990d469e89c6899e48f4f986 [2018-10-27 05:38:24,062 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 05:38:24,064 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 05:38:24,065 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 05:38:24,065 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 05:38:24,069 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 05:38:24,070 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:38:24" (1/1) ... [2018-10-27 05:38:24,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31cb433d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:38:24, skipping insertion in model container [2018-10-27 05:38:24,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:38:24" (1/1) ... [2018-10-27 05:38:24,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 05:38:24,191 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 05:38:25,064 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:38:25,069 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 05:38:25,378 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:38:25,401 INFO L193 MainTranslator]: Completed translation [2018-10-27 05:38:25,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:38:25 WrapperNode [2018-10-27 05:38:25,401 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 05:38:25,402 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 05:38:25,403 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 05:38:25,403 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 05:38:25,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:38:25" (1/1) ... [2018-10-27 05:38:25,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:38:25" (1/1) ... [2018-10-27 05:38:25,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 05:38:25,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 05:38:25,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 05:38:25,796 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 05:38:25,807 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:38:25" (1/1) ... [2018-10-27 05:38:25,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:38:25" (1/1) ... [2018-10-27 05:38:25,825 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:38:25" (1/1) ... [2018-10-27 05:38:25,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:38:25" (1/1) ... [2018-10-27 05:38:25,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:38:25" (1/1) ... [2018-10-27 05:38:25,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:38:25" (1/1) ... [2018-10-27 05:38:25,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:38:25" (1/1) ... [2018-10-27 05:38:25,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 05:38:25,976 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 05:38:25,976 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 05:38:25,976 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 05:38:25,977 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:38:25" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 05:38:26,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 05:38:26,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 05:38:26,040 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 05:38:26,040 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 05:38:26,040 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 05:38:26,040 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 05:38:26,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 05:38:26,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 05:38:26,041 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 05:38:26,041 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 05:38:33,617 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 05:38:33,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:38:33 BoogieIcfgContainer [2018-10-27 05:38:33,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 05:38:33,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 05:38:33,620 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 05:38:33,624 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 05:38:33,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 05:38:24" (1/3) ... [2018-10-27 05:38:33,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3675e8a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:38:33, skipping insertion in model container [2018-10-27 05:38:33,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:38:25" (2/3) ... [2018-10-27 05:38:33,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3675e8a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 05:38:33, skipping insertion in model container [2018-10-27 05:38:33,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:38:33" (3/3) ... [2018-10-27 05:38:33,629 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label50_false-unreach-call.c [2018-10-27 05:38:33,639 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 05:38:33,647 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 05:38:33,666 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 05:38:33,709 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 05:38:33,709 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 05:38:33,709 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 05:38:33,710 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 05:38:33,710 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 05:38:33,710 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 05:38:33,710 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 05:38:33,710 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 05:38:33,744 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-10-27 05:38:33,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-27 05:38:33,752 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:38:33,753 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:38:33,755 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 05:38:33,760 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:38:33,761 INFO L82 PathProgramCache]: Analyzing trace with hash 849169321, now seen corresponding path program 1 times [2018-10-27 05:38:33,763 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:38:33,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:38:33,816 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:38:33,816 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:38:33,817 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:38:33,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:38:34,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:38:34,235 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:38:34,235 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 05:38:34,235 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:38:34,241 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 05:38:34,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 05:38:34,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 05:38:34,262 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-10-27 05:38:42,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:38:42,847 INFO L93 Difference]: Finished difference Result 1501 states and 2761 transitions. [2018-10-27 05:38:42,847 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 05:38:42,848 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2018-10-27 05:38:42,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:38:42,875 INFO L225 Difference]: With dead ends: 1501 [2018-10-27 05:38:42,875 INFO L226 Difference]: Without dead ends: 1057 [2018-10-27 05:38:42,885 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 05:38:42,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1057 states. [2018-10-27 05:38:43,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1057 to 744. [2018-10-27 05:38:43,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-10-27 05:38:43,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1125 transitions. [2018-10-27 05:38:43,039 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1125 transitions. Word has length 19 [2018-10-27 05:38:43,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:38:43,040 INFO L481 AbstractCegarLoop]: Abstraction has 744 states and 1125 transitions. [2018-10-27 05:38:43,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 05:38:43,041 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1125 transitions. [2018-10-27 05:38:43,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2018-10-27 05:38:43,049 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:38:43,049 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-27 05:38:43,049 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 05:38:43,050 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:38:43,050 INFO L82 PathProgramCache]: Analyzing trace with hash -654320835, now seen corresponding path program 1 times [2018-10-27 05:38:43,051 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:38:43,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:38:43,052 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:38:43,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:38:43,053 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:38:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:38:43,331 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:38:43,332 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 05:38:43,332 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 05:38:43,332 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:38:43,335 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 05:38:43,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 05:38:43,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 05:38:43,337 INFO L87 Difference]: Start difference. First operand 744 states and 1125 transitions. Second operand 4 states. [2018-10-27 05:38:50,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:38:50,790 INFO L93 Difference]: Finished difference Result 2731 states and 4243 transitions. [2018-10-27 05:38:50,791 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 05:38:50,791 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2018-10-27 05:38:50,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:38:50,805 INFO L225 Difference]: With dead ends: 2731 [2018-10-27 05:38:50,805 INFO L226 Difference]: Without dead ends: 1993 [2018-10-27 05:38:50,811 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 05:38:50,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1993 states. [2018-10-27 05:38:50,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1993 to 1989. [2018-10-27 05:38:50,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1989 states. [2018-10-27 05:38:50,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1989 states to 1989 states and 2769 transitions. [2018-10-27 05:38:50,908 INFO L78 Accepts]: Start accepts. Automaton has 1989 states and 2769 transitions. Word has length 89 [2018-10-27 05:38:50,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:38:50,908 INFO L481 AbstractCegarLoop]: Abstraction has 1989 states and 2769 transitions. [2018-10-27 05:38:50,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 05:38:50,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1989 states and 2769 transitions. [2018-10-27 05:38:50,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2018-10-27 05:38:50,932 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:38:50,933 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:38:50,933 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 05:38:50,933 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:38:50,934 INFO L82 PathProgramCache]: Analyzing trace with hash 1953806169, now seen corresponding path program 1 times [2018-10-27 05:38:50,934 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:38:50,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:38:50,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:38:50,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:38:50,936 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:38:51,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:38:51,466 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 27 proven. 87 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-27 05:38:51,467 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:38:51,467 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 05:38:51,468 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 240 with the following transitions: [2018-10-27 05:38:51,470 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [125], [127], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [816], [821], [823], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-27 05:38:51,521 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 05:38:51,522 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 05:38:52,601 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 05:38:52,604 INFO L272 AbstractInterpreter]: Visited 130 different actions 377 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-27 05:38:52,643 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:38:52,643 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 05:38:53,224 INFO L227 lantSequenceWeakener]: Weakened 234 states. On average, predicates are now at 83.27% of their original sizes. [2018-10-27 05:38:53,225 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 05:38:53,841 INFO L415 sIntCurrentIteration]: We unified 238 AI predicates to 238 [2018-10-27 05:38:53,841 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 05:38:53,842 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 05:38:53,842 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2018-10-27 05:38:53,843 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:38:53,843 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 05:38:53,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 05:38:53,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-10-27 05:38:53,848 INFO L87 Difference]: Start difference. First operand 1989 states and 2769 transitions. Second operand 9 states. [2018-10-27 05:39:27,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:39:27,467 INFO L93 Difference]: Finished difference Result 4914 states and 6583 transitions. [2018-10-27 05:39:27,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-27 05:39:27,467 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 239 [2018-10-27 05:39:27,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:39:27,483 INFO L225 Difference]: With dead ends: 4914 [2018-10-27 05:39:27,483 INFO L226 Difference]: Without dead ends: 2931 [2018-10-27 05:39:27,490 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 244 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2018-10-27 05:39:27,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2931 states. [2018-10-27 05:39:27,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2931 to 2928. [2018-10-27 05:39:27,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2928 states. [2018-10-27 05:39:27,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2928 states to 2928 states and 3760 transitions. [2018-10-27 05:39:27,566 INFO L78 Accepts]: Start accepts. Automaton has 2928 states and 3760 transitions. Word has length 239 [2018-10-27 05:39:27,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:39:27,567 INFO L481 AbstractCegarLoop]: Abstraction has 2928 states and 3760 transitions. [2018-10-27 05:39:27,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-27 05:39:27,568 INFO L276 IsEmpty]: Start isEmpty. Operand 2928 states and 3760 transitions. [2018-10-27 05:39:27,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2018-10-27 05:39:27,576 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:39:27,577 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:39:27,577 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 05:39:27,578 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:39:27,578 INFO L82 PathProgramCache]: Analyzing trace with hash 860400699, now seen corresponding path program 1 times [2018-10-27 05:39:27,578 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:39:27,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:39:27,579 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:39:27,579 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:39:27,580 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:39:27,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:39:28,205 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 107 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:39:28,205 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:39:28,205 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 05:39:28,206 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 382 with the following transitions: [2018-10-27 05:39:28,207 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [125], [127], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [633], [638], [640], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-27 05:39:28,222 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 05:39:28,223 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 05:39:28,985 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 05:39:28,986 INFO L272 AbstractInterpreter]: Visited 286 different actions 1136 times. Merged at 7 different actions 29 times. Widened at 1 different actions 1 times. Found 4 fixpoints after 3 different actions. Largest state had 24 variables. [2018-10-27 05:39:28,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:39:28,997 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 05:39:28,997 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:39:28,997 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 [2018-10-27 05:39:29,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:39:29,009 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 05:39:29,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:39:29,155 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 05:39:29,585 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 107 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:39:29,585 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 05:39:29,841 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-10-27 05:39:30,567 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 107 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:39:30,590 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 05:39:30,591 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-10-27 05:39:30,591 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 05:39:30,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 05:39:30,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 05:39:30,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-10-27 05:39:30,593 INFO L87 Difference]: Start difference. First operand 2928 states and 3760 transitions. Second operand 9 states. [2018-10-27 05:39:43,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:39:43,014 INFO L93 Difference]: Finished difference Result 6614 states and 9574 transitions. [2018-10-27 05:39:43,014 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-27 05:39:43,014 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 381 [2018-10-27 05:39:43,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:39:43,053 INFO L225 Difference]: With dead ends: 6614 [2018-10-27 05:39:43,053 INFO L226 Difference]: Without dead ends: 4631 [2018-10-27 05:39:43,078 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 789 GetRequests, 765 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=190, Invalid=410, Unknown=0, NotChecked=0, Total=600 [2018-10-27 05:39:43,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4631 states. [2018-10-27 05:39:43,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4631 to 4621. [2018-10-27 05:39:43,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4621 states. [2018-10-27 05:39:43,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4621 states to 4621 states and 6152 transitions. [2018-10-27 05:39:43,222 INFO L78 Accepts]: Start accepts. Automaton has 4621 states and 6152 transitions. Word has length 381 [2018-10-27 05:39:43,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:39:43,224 INFO L481 AbstractCegarLoop]: Abstraction has 4621 states and 6152 transitions. [2018-10-27 05:39:43,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-27 05:39:43,224 INFO L276 IsEmpty]: Start isEmpty. Operand 4621 states and 6152 transitions. [2018-10-27 05:39:43,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2018-10-27 05:39:43,233 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:39:43,233 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:39:43,234 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 05:39:43,234 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:39:43,234 INFO L82 PathProgramCache]: Analyzing trace with hash -431493926, now seen corresponding path program 1 times [2018-10-27 05:39:43,235 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:39:43,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:39:43,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:39:43,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:39:43,236 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:39:43,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:39:43,920 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 207 proven. 2 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-10-27 05:39:43,920 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:39:43,920 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 05:39:43,921 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 404 with the following transitions: [2018-10-27 05:39:43,921 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [125], [127], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [633], [638], [640], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1209], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-27 05:39:43,934 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 05:39:43,934 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 05:39:45,107 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 05:39:45,107 INFO L272 AbstractInterpreter]: Visited 213 different actions 1044 times. Merged at 8 different actions 32 times. Never widened. Found 7 fixpoints after 2 different actions. Largest state had 24 variables. [2018-10-27 05:39:45,148 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:39:45,149 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 05:39:45,149 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:39:45,149 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 [2018-10-27 05:39:45,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:39:45,161 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 05:39:45,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:39:45,284 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 05:39:45,592 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 207 proven. 2 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-10-27 05:39:45,593 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 05:39:46,179 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 207 proven. 2 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-10-27 05:39:46,213 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 05:39:46,214 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-10-27 05:39:46,214 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 05:39:46,215 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 05:39:46,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 05:39:46,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-10-27 05:39:46,217 INFO L87 Difference]: Start difference. First operand 4621 states and 6152 transitions. Second operand 9 states. [2018-10-27 05:39:59,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:39:59,475 INFO L93 Difference]: Finished difference Result 9019 states and 12737 transitions. [2018-10-27 05:39:59,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-10-27 05:39:59,476 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 403 [2018-10-27 05:39:59,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:39:59,517 INFO L225 Difference]: With dead ends: 9019 [2018-10-27 05:39:59,518 INFO L226 Difference]: Without dead ends: 5345 [2018-10-27 05:39:59,564 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 833 GetRequests, 812 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2018-10-27 05:39:59,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5345 states. [2018-10-27 05:39:59,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5345 to 5323. [2018-10-27 05:39:59,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5323 states. [2018-10-27 05:39:59,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5323 states to 5323 states and 6726 transitions. [2018-10-27 05:39:59,742 INFO L78 Accepts]: Start accepts. Automaton has 5323 states and 6726 transitions. Word has length 403 [2018-10-27 05:39:59,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:39:59,743 INFO L481 AbstractCegarLoop]: Abstraction has 5323 states and 6726 transitions. [2018-10-27 05:39:59,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-27 05:39:59,744 INFO L276 IsEmpty]: Start isEmpty. Operand 5323 states and 6726 transitions. [2018-10-27 05:39:59,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2018-10-27 05:39:59,753 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:39:59,753 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:39:59,754 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 05:39:59,754 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:39:59,754 INFO L82 PathProgramCache]: Analyzing trace with hash 420464121, now seen corresponding path program 1 times [2018-10-27 05:39:59,754 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:39:59,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:39:59,755 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:39:59,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:39:59,756 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:39:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:40:00,449 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 15 proven. 115 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-10-27 05:40:00,449 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:40:00,449 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 05:40:00,450 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 407 with the following transitions: [2018-10-27 05:40:00,450 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [125], [127], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-27 05:40:00,457 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 05:40:00,457 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 05:40:04,495 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 05:40:04,496 INFO L272 AbstractInterpreter]: Visited 284 different actions 846 times. Merged at 7 different actions 18 times. Never widened. Found 3 fixpoints after 3 different actions. Largest state had 24 variables. [2018-10-27 05:40:04,504 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:40:04,504 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 05:40:04,504 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:40:04,504 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 05:40:04,514 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:40:04,515 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 05:40:04,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:40:04,633 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 05:40:38,617 WARN L179 SmtUtils]: Spent 26.60 s on a formula simplification. DAG size of input: 17263 DAG size of output: 23 [2018-10-27 05:40:38,768 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-10-27 05:40:38,768 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 05:40:39,033 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-10-27 05:40:39,055 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-10-27 05:40:39,055 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 10 [2018-10-27 05:40:39,055 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 05:40:39,056 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 05:40:39,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 05:40:39,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-10-27 05:40:39,056 INFO L87 Difference]: Start difference. First operand 5323 states and 6726 transitions. Second operand 3 states. [2018-10-27 05:41:05,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 05:41:05,727 INFO L93 Difference]: Finished difference Result 12925 states and 17765 transitions. [2018-10-27 05:41:05,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 05:41:05,728 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 406 [2018-10-27 05:41:05,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 05:41:05,791 INFO L225 Difference]: With dead ends: 12925 [2018-10-27 05:41:05,792 INFO L226 Difference]: Without dead ends: 7596 [2018-10-27 05:41:05,836 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 823 GetRequests, 813 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 31.8s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-10-27 05:41:05,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7596 states. [2018-10-27 05:41:06,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7596 to 7594. [2018-10-27 05:41:06,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7594 states. [2018-10-27 05:41:06,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7594 states to 7594 states and 9981 transitions. [2018-10-27 05:41:06,084 INFO L78 Accepts]: Start accepts. Automaton has 7594 states and 9981 transitions. Word has length 406 [2018-10-27 05:41:06,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 05:41:06,085 INFO L481 AbstractCegarLoop]: Abstraction has 7594 states and 9981 transitions. [2018-10-27 05:41:06,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 05:41:06,086 INFO L276 IsEmpty]: Start isEmpty. Operand 7594 states and 9981 transitions. [2018-10-27 05:41:06,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 557 [2018-10-27 05:41:06,106 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 05:41:06,107 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 05:41:06,107 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 05:41:06,107 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:41:06,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1029722096, now seen corresponding path program 1 times [2018-10-27 05:41:06,109 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 05:41:06,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:41:06,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:41:06,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 05:41:06,112 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 05:41:06,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:41:07,040 WARN L179 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-27 05:41:07,265 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-27 05:41:08,385 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 44 proven. 361 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 05:41:08,386 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:41:08,386 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 05:41:08,386 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 557 with the following transitions: [2018-10-27 05:41:08,387 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [125], [127], [130], [138], [146], [154], [162], [170], [178], [186], [194], [202], [210], [218], [226], [234], [242], [250], [258], [266], [274], [282], [290], [298], [306], [314], [322], [330], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [762], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [970], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1561], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-27 05:41:08,391 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 05:41:08,391 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 05:41:12,773 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 05:41:12,773 INFO L272 AbstractInterpreter]: Visited 285 different actions 851 times. Merged at 8 different actions 20 times. Never widened. Found 4 fixpoints after 3 different actions. Largest state had 24 variables. [2018-10-27 05:41:12,810 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:41:12,811 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 05:41:12,811 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 05:41:12,811 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 05:41:12,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 05:41:12,824 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 05:41:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:41:12,988 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 05:41:31,404 WARN L179 SmtUtils]: Spent 18.16 s on a formula simplification. DAG size of input: 118 DAG size of output: 52 [2018-10-27 05:41:31,974 WARN L179 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 12 [2018-10-27 05:41:32,226 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 294 proven. 116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:41:32,226 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 05:41:32,902 WARN L179 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2018-10-27 05:41:34,871 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 294 proven. 116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:41:34,892 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 05:41:34,893 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 21 [2018-10-27 05:41:34,893 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 05:41:34,894 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-10-27 05:41:34,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-10-27 05:41:34,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=355, Unknown=0, NotChecked=0, Total=420 [2018-10-27 05:41:34,895 INFO L87 Difference]: Start difference. First operand 7594 states and 9981 transitions. Second operand 17 states. [2018-10-27 05:41:39,638 WARN L179 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 36 [2018-10-27 05:41:56,885 WARN L179 SmtUtils]: Spent 14.58 s on a formula simplification. DAG size of input: 75 DAG size of output: 44 [2018-10-27 05:42:13,038 WARN L179 SmtUtils]: Spent 10.95 s on a formula simplification. DAG size of input: 67 DAG size of output: 50 Received shutdown request... [2018-10-27 05:42:21,656 WARN L187 SmtUtils]: Removed 6 from assertion stack [2018-10-27 05:42:21,657 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-10-27 05:42:21,657 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 05:42:21,662 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 05:42:21,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 05:42:21 BoogieIcfgContainer [2018-10-27 05:42:21,662 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 05:42:21,663 INFO L168 Benchmark]: Toolchain (without parser) took 237600.67 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: -983.3 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-10-27 05:42:21,665 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 05:42:21,666 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1337.20 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: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. [2018-10-27 05:42:21,667 INFO L168 Benchmark]: Boogie Procedure Inliner took 392.87 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 753.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -871.0 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. [2018-10-27 05:42:21,668 INFO L168 Benchmark]: Boogie Preprocessor took 179.99 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2018-10-27 05:42:21,669 INFO L168 Benchmark]: RCFGBuilder took 7642.76 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 315.3 MB). Peak memory consumption was 315.3 MB. Max. memory is 7.1 GB. [2018-10-27 05:42:21,670 INFO L168 Benchmark]: TraceAbstraction took 228042.71 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.8 GB in the beginning and 2.4 GB in the end (delta: -547.2 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-10-27 05:42:21,676 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1337.20 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: 105.9 MB). Peak memory consumption was 105.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 392.87 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 753.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -871.0 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 179.99 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7642.76 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 315.3 MB). Peak memory consumption was 315.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 228042.71 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.8 GB in the beginning and 2.4 GB in the end (delta: -547.2 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 43]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 43). Cancelled while BasicCegarLoop was constructing difference of abstraction (7594states) and FLOYD_HOARE automaton (currently 38 states, 17 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 81. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 227.9s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 149.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2204 SDtfs, 15720 SDslu, 2265 SDs, 0 SdLazy, 21291 SolverSat, 4697 SolverUnsat, 14 SolverUnknown, 0 SolverNotchecked, 94.4s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 3889 GetRequests, 3761 SyntacticMatches, 7 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 998 ImplicationChecksByTransitivity, 82.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7594occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 11.6s AbstIntTime, 5 AbstIntIterations, 1 AbstIntStrong, 0.9967693654063559 AbsIntWeakeningRatio, 0.1134453781512605 AbsIntAvgWeakeningVarsNumRemoved, 14.369747899159664 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 6 MinimizatonAttempts, 354 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 62.1s InterpolantComputationTime, 3839 NumberOfCodeBlocks, 3839 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 5570 ConstructedInterpolants, 22 QuantifiedInterpolants, 12488675 SizeOfPredicates, 6 NumberOfNonLiveVariables, 2544 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 15 InterpolantComputations, 4 PerfectInterpolantSequences, 2196/3003 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown