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_label25_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 23:39:44,138 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 23:39:44,140 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 23:39:44,157 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 23:39:44,158 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 23:39:44,159 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 23:39:44,160 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 23:39:44,163 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 23:39:44,165 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 23:39:44,167 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 23:39:44,170 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 23:39:44,171 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 23:39:44,172 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 23:39:44,175 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 23:39:44,176 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 23:39:44,177 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 23:39:44,179 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 23:39:44,182 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 23:39:44,190 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 23:39:44,194 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 23:39:44,198 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 23:39:44,199 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 23:39:44,201 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 23:39:44,208 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-24 23:39:44,232 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 23:39:44,234 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 23:39:44,235 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 23:39:44,236 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 23:39:44,236 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 23:39:44,236 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 23:39:44,236 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-24 23:39:44,236 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 23:39:44,237 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-24 23:39:44,237 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 23:39:44,237 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 23:39:44,237 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 23:39:44,237 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 23:39:44,238 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 23:39:44,238 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 23:39:44,239 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 23:39:44,239 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 23:39:44,239 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 23:39:44,239 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 23:39:44,239 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 23:39:44,240 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 23:39:44,240 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 23:39:44,240 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 23:39:44,240 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 23:39:44,240 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 23:39:44,240 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 23:39:44,241 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 23:39:44,241 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 23:39:44,241 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 23:39:44,241 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 23:39:44,242 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 23:39:44,242 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 23:39:44,242 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 23:39:44,242 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 23:39:44,242 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 23:39:44,243 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 23:39:44,309 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 23:39:44,324 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 23:39:44,330 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 23:39:44,332 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 23:39:44,332 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 23:39:44,333 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label25_false-unreach-call.c [2018-10-24 23:39:44,400 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d19cd7979/d3583e96d1e2402490bb6369898187b5/FLAGe3378c5f3 [2018-10-24 23:39:45,098 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 23:39:45,099 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label25_false-unreach-call.c [2018-10-24 23:39:45,125 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d19cd7979/d3583e96d1e2402490bb6369898187b5/FLAGe3378c5f3 [2018-10-24 23:39:45,145 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d19cd7979/d3583e96d1e2402490bb6369898187b5 [2018-10-24 23:39:45,157 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 23:39:45,158 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 23:39:45,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 23:39:45,160 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 23:39:45,163 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 23:39:45,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:39:45" (1/1) ... [2018-10-24 23:39:45,169 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f32220e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:45, skipping insertion in model container [2018-10-24 23:39:45,169 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:39:45" (1/1) ... [2018-10-24 23:39:45,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 23:39:45,274 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 23:39:46,022 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:39:46,027 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 23:39:46,342 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:39:46,364 INFO L193 MainTranslator]: Completed translation [2018-10-24 23:39:46,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:46 WrapperNode [2018-10-24 23:39:46,365 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 23:39:46,367 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 23:39:46,367 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 23:39:46,367 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 23:39:46,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:46" (1/1) ... [2018-10-24 23:39:46,428 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:46" (1/1) ... [2018-10-24 23:39:46,794 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 23:39:46,795 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 23:39:46,795 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 23:39:46,795 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 23:39:46,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:46" (1/1) ... [2018-10-24 23:39:46,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:46" (1/1) ... [2018-10-24 23:39:46,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:46" (1/1) ... [2018-10-24 23:39:46,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:46" (1/1) ... [2018-10-24 23:39:46,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:46" (1/1) ... [2018-10-24 23:39:46,918 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:46" (1/1) ... [2018-10-24 23:39:46,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:46" (1/1) ... [2018-10-24 23:39:47,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 23:39:47,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 23:39:47,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 23:39:47,003 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 23:39:47,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 23:39:47,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 23:39:47,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 23:39:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 23:39:47,074 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 23:39:47,074 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 23:39:47,075 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 23:39:47,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 23:39:47,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 23:39:47,076 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 23:39:47,076 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 23:39:54,010 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 23:39:54,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:39:54 BoogieIcfgContainer [2018-10-24 23:39:54,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 23:39:54,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 23:39:54,013 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 23:39:54,016 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 23:39:54,017 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:39:45" (1/3) ... [2018-10-24 23:39:54,017 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72afb927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:39:54, skipping insertion in model container [2018-10-24 23:39:54,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:39:46" (2/3) ... [2018-10-24 23:39:54,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72afb927 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:39:54, skipping insertion in model container [2018-10-24 23:39:54,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:39:54" (3/3) ... [2018-10-24 23:39:54,020 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label25_false-unreach-call.c [2018-10-24 23:39:54,029 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 23:39:54,038 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 23:39:54,056 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 23:39:54,098 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 23:39:54,099 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 23:39:54,099 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 23:39:54,099 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 23:39:54,099 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 23:39:54,099 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 23:39:54,100 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 23:39:54,100 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 23:39:54,142 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-10-24 23:39:54,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-10-24 23:39:54,150 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:39:54,152 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] [2018-10-24 23:39:54,154 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:39:54,161 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:39:54,161 INFO L82 PathProgramCache]: Analyzing trace with hash 480203289, now seen corresponding path program 1 times [2018-10-24 23:39:54,164 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:39:54,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:39:54,217 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:39:54,217 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:39:54,217 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:39:54,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:39:54,632 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-10-24 23:39:54,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:39:54,643 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:39:54,644 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 23:39:54,644 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:39:54,650 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 23:39:54,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 23:39:54,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 23:39:54,668 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-10-24 23:40:04,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:40:04,597 INFO L93 Difference]: Finished difference Result 1550 states and 2835 transitions. [2018-10-24 23:40:04,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 23:40:04,600 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2018-10-24 23:40:04,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:40:04,643 INFO L225 Difference]: With dead ends: 1550 [2018-10-24 23:40:04,643 INFO L226 Difference]: Without dead ends: 1106 [2018-10-24 23:40:04,659 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 [2018-10-24 23:40:04,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2018-10-24 23:40:04,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 762. [2018-10-24 23:40:04,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 762 states. [2018-10-24 23:40:04,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 1263 transitions. [2018-10-24 23:40:04,778 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 1263 transitions. Word has length 31 [2018-10-24 23:40:04,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:40:04,779 INFO L481 AbstractCegarLoop]: Abstraction has 762 states and 1263 transitions. [2018-10-24 23:40:04,779 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 23:40:04,779 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 1263 transitions. [2018-10-24 23:40:04,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2018-10-24 23:40:04,785 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:40:04,786 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 23:40:04,786 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:40:04,786 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:40:04,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1889968228, now seen corresponding path program 1 times [2018-10-24 23:40:04,787 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:40:04,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:40:04,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:40:04,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:40:04,788 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:40:04,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:40:05,168 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:40:05,169 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:40:05,169 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 23:40:05,169 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:40:05,171 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 23:40:05,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 23:40:05,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 23:40:05,172 INFO L87 Difference]: Start difference. First operand 762 states and 1263 transitions. Second operand 5 states. [2018-10-24 23:40:14,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:40:14,884 INFO L93 Difference]: Finished difference Result 2245 states and 3758 transitions. [2018-10-24 23:40:14,885 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-24 23:40:14,885 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2018-10-24 23:40:14,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:40:14,900 INFO L225 Difference]: With dead ends: 2245 [2018-10-24 23:40:14,900 INFO L226 Difference]: Without dead ends: 1489 [2018-10-24 23:40:14,905 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 23:40:14,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2018-10-24 23:40:14,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1457. [2018-10-24 23:40:14,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1457 states. [2018-10-24 23:40:14,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 2152 transitions. [2018-10-24 23:40:14,997 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 2152 transitions. Word has length 104 [2018-10-24 23:40:14,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:40:14,998 INFO L481 AbstractCegarLoop]: Abstraction has 1457 states and 2152 transitions. [2018-10-24 23:40:14,998 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 23:40:14,998 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 2152 transitions. [2018-10-24 23:40:15,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2018-10-24 23:40:15,005 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:40:15,005 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 23:40:15,006 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:40:15,007 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:40:15,008 INFO L82 PathProgramCache]: Analyzing trace with hash -1891777420, now seen corresponding path program 1 times [2018-10-24 23:40:15,008 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:40:15,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:40:15,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:40:15,010 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:40:15,010 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:40:15,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:40:15,223 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:40:15,223 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:40:15,223 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 23:40:15,224 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:40:15,224 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 23:40:15,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 23:40:15,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 23:40:15,225 INFO L87 Difference]: Start difference. First operand 1457 states and 2152 transitions. Second operand 4 states. [2018-10-24 23:40:21,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:40:21,767 INFO L93 Difference]: Finished difference Result 5409 states and 8320 transitions. [2018-10-24 23:40:21,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 23:40:21,769 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 112 [2018-10-24 23:40:21,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:40:21,797 INFO L225 Difference]: With dead ends: 5409 [2018-10-24 23:40:21,797 INFO L226 Difference]: Without dead ends: 3958 [2018-10-24 23:40:21,811 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 [2018-10-24 23:40:21,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3958 states. [2018-10-24 23:40:21,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3958 to 3953. [2018-10-24 23:40:21,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3953 states. [2018-10-24 23:40:21,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3953 states to 3953 states and 5489 transitions. [2018-10-24 23:40:21,929 INFO L78 Accepts]: Start accepts. Automaton has 3953 states and 5489 transitions. Word has length 112 [2018-10-24 23:40:21,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:40:21,930 INFO L481 AbstractCegarLoop]: Abstraction has 3953 states and 5489 transitions. [2018-10-24 23:40:21,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 23:40:21,930 INFO L276 IsEmpty]: Start isEmpty. Operand 3953 states and 5489 transitions. [2018-10-24 23:40:21,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-10-24 23:40:21,934 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:40:21,935 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 23:40:21,935 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:40:21,935 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:40:21,935 INFO L82 PathProgramCache]: Analyzing trace with hash -105933602, now seen corresponding path program 1 times [2018-10-24 23:40:21,935 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:40:21,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:40:21,937 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:40:21,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:40:21,940 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:40:21,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:40:22,168 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:40:22,169 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:40:22,169 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 23:40:22,169 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:40:22,170 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 23:40:22,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 23:40:22,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 23:40:22,171 INFO L87 Difference]: Start difference. First operand 3953 states and 5489 transitions. Second operand 6 states. [2018-10-24 23:40:28,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:40:28,830 INFO L93 Difference]: Finished difference Result 9154 states and 12480 transitions. [2018-10-24 23:40:28,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 23:40:28,832 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2018-10-24 23:40:28,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:40:28,862 INFO L225 Difference]: With dead ends: 9154 [2018-10-24 23:40:28,862 INFO L226 Difference]: Without dead ends: 5207 [2018-10-24 23:40:28,886 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 23:40:28,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5207 states. [2018-10-24 23:40:29,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5207 to 5153. [2018-10-24 23:40:29,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5153 states. [2018-10-24 23:40:29,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 5153 states and 6640 transitions. [2018-10-24 23:40:29,039 INFO L78 Accepts]: Start accepts. Automaton has 5153 states and 6640 transitions. Word has length 131 [2018-10-24 23:40:29,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:40:29,039 INFO L481 AbstractCegarLoop]: Abstraction has 5153 states and 6640 transitions. [2018-10-24 23:40:29,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 23:40:29,040 INFO L276 IsEmpty]: Start isEmpty. Operand 5153 states and 6640 transitions. [2018-10-24 23:40:29,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2018-10-24 23:40:29,044 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:40:29,044 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 23:40:29,044 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:40:29,044 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:40:29,048 INFO L82 PathProgramCache]: Analyzing trace with hash 1626579703, now seen corresponding path program 1 times [2018-10-24 23:40:29,048 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:40:29,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:40:29,050 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:40:29,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:40:29,050 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:40:29,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:40:29,364 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-10-24 23:40:29,364 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:40:29,364 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 23:40:29,364 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:40:29,365 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 23:40:29,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 23:40:29,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 23:40:29,366 INFO L87 Difference]: Start difference. First operand 5153 states and 6640 transitions. Second operand 4 states. [2018-10-24 23:40:34,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:40:34,444 INFO L93 Difference]: Finished difference Result 16904 states and 22307 transitions. [2018-10-24 23:40:34,445 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 23:40:34,445 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 186 [2018-10-24 23:40:34,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:40:34,498 INFO L225 Difference]: With dead ends: 16904 [2018-10-24 23:40:34,498 INFO L226 Difference]: Without dead ends: 11757 [2018-10-24 23:40:34,532 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 23:40:34,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11757 states. [2018-10-24 23:40:34,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11757 to 11397. [2018-10-24 23:40:34,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11397 states. [2018-10-24 23:40:34,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11397 states to 11397 states and 14032 transitions. [2018-10-24 23:40:34,813 INFO L78 Accepts]: Start accepts. Automaton has 11397 states and 14032 transitions. Word has length 186 [2018-10-24 23:40:34,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:40:34,814 INFO L481 AbstractCegarLoop]: Abstraction has 11397 states and 14032 transitions. [2018-10-24 23:40:34,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 23:40:34,814 INFO L276 IsEmpty]: Start isEmpty. Operand 11397 states and 14032 transitions. [2018-10-24 23:40:34,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-10-24 23:40:34,819 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:40:34,820 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 23:40:34,820 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:40:34,820 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:40:34,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1918161605, now seen corresponding path program 1 times [2018-10-24 23:40:34,821 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:40:34,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:40:34,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:40:34,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:40:34,822 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:40:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:40:35,057 WARN L179 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 3 [2018-10-24 23:40:35,081 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-10-24 23:40:35,081 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:40:35,081 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 23:40:35,081 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:40:35,082 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 23:40:35,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 23:40:35,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 23:40:35,083 INFO L87 Difference]: Start difference. First operand 11397 states and 14032 transitions. Second operand 3 states. [2018-10-24 23:40:39,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:40:39,802 INFO L93 Difference]: Finished difference Result 27800 states and 35316 transitions. [2018-10-24 23:40:39,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 23:40:39,804 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 199 [2018-10-24 23:40:39,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:40:39,887 INFO L225 Difference]: With dead ends: 27800 [2018-10-24 23:40:39,887 INFO L226 Difference]: Without dead ends: 16409 [2018-10-24 23:40:39,943 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 23:40:39,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16409 states. [2018-10-24 23:40:40,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16409 to 16395. [2018-10-24 23:40:40,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16395 states. [2018-10-24 23:40:40,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16395 states to 16395 states and 20523 transitions. [2018-10-24 23:40:40,301 INFO L78 Accepts]: Start accepts. Automaton has 16395 states and 20523 transitions. Word has length 199 [2018-10-24 23:40:40,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:40:40,302 INFO L481 AbstractCegarLoop]: Abstraction has 16395 states and 20523 transitions. [2018-10-24 23:40:40,302 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 23:40:40,302 INFO L276 IsEmpty]: Start isEmpty. Operand 16395 states and 20523 transitions. [2018-10-24 23:40:40,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-10-24 23:40:40,310 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:40:40,311 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 23:40:40,311 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:40:40,311 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:40:40,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1276060231, now seen corresponding path program 1 times [2018-10-24 23:40:40,312 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:40:40,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:40:40,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:40:40,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:40:40,313 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:40:40,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:40:40,930 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-10-24 23:40:40,930 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:40:40,931 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 23:40:40,932 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 213 with the following transitions: [2018-10-24 23:40:40,934 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [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], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [714], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-24 23:40:40,983 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 23:40:40,983 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 23:40:41,720 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 23:40:41,721 INFO L272 AbstractInterpreter]: Visited 105 different actions 105 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 23:40:41,766 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:40:41,766 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 23:40:42,524 INFO L232 lantSequenceWeakener]: Weakened 203 states. On average, predicates are now at 77.6% of their original sizes. [2018-10-24 23:40:42,524 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 23:40:42,761 INFO L413 sIntCurrentIteration]: We have 211 unified AI predicates [2018-10-24 23:40:42,761 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 23:40:42,762 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 23:40:42,763 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2018-10-24 23:40:42,763 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:40:42,763 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 23:40:42,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 23:40:42,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 23:40:42,767 INFO L87 Difference]: Start difference. First operand 16395 states and 20523 transitions. Second operand 6 states. [2018-10-24 23:42:00,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:42:00,239 INFO L93 Difference]: Finished difference Result 33094 states and 41402 transitions. [2018-10-24 23:42:00,239 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-24 23:42:00,239 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 212 [2018-10-24 23:42:00,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:42:00,298 INFO L225 Difference]: With dead ends: 33094 [2018-10-24 23:42:00,298 INFO L226 Difference]: Without dead ends: 16705 [2018-10-24 23:42:00,344 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 212 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-24 23:42:00,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16705 states. [2018-10-24 23:42:00,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16705 to 16703. [2018-10-24 23:42:00,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16703 states. [2018-10-24 23:42:00,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16703 states to 16703 states and 20840 transitions. [2018-10-24 23:42:00,665 INFO L78 Accepts]: Start accepts. Automaton has 16703 states and 20840 transitions. Word has length 212 [2018-10-24 23:42:00,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:42:00,665 INFO L481 AbstractCegarLoop]: Abstraction has 16703 states and 20840 transitions. [2018-10-24 23:42:00,665 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 23:42:00,666 INFO L276 IsEmpty]: Start isEmpty. Operand 16703 states and 20840 transitions. [2018-10-24 23:42:00,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2018-10-24 23:42:00,675 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:42:00,676 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 23:42:00,676 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:42:00,676 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:42:00,677 INFO L82 PathProgramCache]: Analyzing trace with hash 725845603, now seen corresponding path program 1 times [2018-10-24 23:42:00,677 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:42:00,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:42:00,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:42:00,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:42:00,678 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:42:00,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:42:01,723 WARN L179 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-24 23:42:02,142 WARN L179 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-10-24 23:42:02,289 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 156 proven. 169 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 23:42:02,289 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:42:02,290 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 23:42:02,290 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 309 with the following transitions: [2018-10-24 23:42:02,290 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [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], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [714], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-24 23:42:02,296 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 23:42:02,296 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 23:42:02,700 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 23:42:02,700 INFO L272 AbstractInterpreter]: Visited 109 different actions 314 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 23:42:02,739 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:42:02,739 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 23:42:03,591 INFO L232 lantSequenceWeakener]: Weakened 305 states. On average, predicates are now at 78.05% of their original sizes. [2018-10-24 23:42:03,591 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 23:42:03,873 INFO L413 sIntCurrentIteration]: We have 307 unified AI predicates [2018-10-24 23:42:03,874 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 23:42:03,874 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 23:42:03,875 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [11] total 18 [2018-10-24 23:42:03,875 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:42:03,876 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-24 23:42:03,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-24 23:42:03,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-10-24 23:42:03,877 INFO L87 Difference]: Start difference. First operand 16703 states and 20840 transitions. Second operand 9 states. [2018-10-24 23:42:44,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:42:44,329 INFO L93 Difference]: Finished difference Result 33722 states and 42108 transitions. [2018-10-24 23:42:44,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-24 23:42:44,330 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 308 [2018-10-24 23:42:44,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:42:44,387 INFO L225 Difference]: With dead ends: 33722 [2018-10-24 23:42:44,387 INFO L226 Difference]: Without dead ends: 17333 [2018-10-24 23:42:44,423 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 313 GetRequests, 281 SyntacticMatches, 19 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2018-10-24 23:42:44,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17333 states. [2018-10-24 23:42:44,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17333 to 17330. [2018-10-24 23:42:44,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17330 states. [2018-10-24 23:42:44,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17330 states to 17330 states and 21512 transitions. [2018-10-24 23:42:44,742 INFO L78 Accepts]: Start accepts. Automaton has 17330 states and 21512 transitions. Word has length 308 [2018-10-24 23:42:44,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:42:44,742 INFO L481 AbstractCegarLoop]: Abstraction has 17330 states and 21512 transitions. [2018-10-24 23:42:44,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-24 23:42:44,743 INFO L276 IsEmpty]: Start isEmpty. Operand 17330 states and 21512 transitions. [2018-10-24 23:42:44,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2018-10-24 23:42:44,754 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:42:44,755 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 23:42:44,756 INFO L424 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:42:44,756 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:42:44,756 INFO L82 PathProgramCache]: Analyzing trace with hash -454445057, now seen corresponding path program 1 times [2018-10-24 23:42:44,756 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:42:44,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:42:44,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:42:44,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:42:44,757 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:42:44,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:42:45,553 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:42:45,553 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:42:45,553 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 23:42:45,554 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 405 with the following transitions: [2018-10-24 23:42:45,554 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [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], [644], [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], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-24 23:42:45,575 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 23:42:45,576 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 23:42:47,649 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 23:42:47,649 INFO L272 AbstractInterpreter]: Visited 296 different actions 1173 times. Merged at 7 different actions 24 times. Never widened. Found 4 fixpoints after 2 different actions. Largest state had 24 variables. [2018-10-24 23:42:47,659 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:42:47,660 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 23:42:47,660 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:42:47,660 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 23:42:47,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:42:47,670 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 23:42:47,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:42:47,835 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 23:42:48,165 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:42:48,165 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 23:42:48,825 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:42:48,864 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-24 23:42:48,865 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-10-24 23:42:48,865 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-24 23:42:48,866 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-24 23:42:48,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-24 23:42:48,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-10-24 23:42:48,869 INFO L87 Difference]: Start difference. First operand 17330 states and 21512 transitions. Second operand 9 states. [2018-10-24 23:42:59,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:42:59,769 INFO L93 Difference]: Finished difference Result 42756 states and 60389 transitions. [2018-10-24 23:42:59,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-24 23:42:59,770 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 404 [2018-10-24 23:42:59,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:42:59,946 INFO L225 Difference]: With dead ends: 42756 [2018-10-24 23:42:59,946 INFO L226 Difference]: Without dead ends: 26367 [2018-10-24 23:43:00,067 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 829 GetRequests, 810 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=128, Invalid=252, Unknown=0, NotChecked=0, Total=380 [2018-10-24 23:43:00,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26367 states. [2018-10-24 23:43:00,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26367 to 26229. [2018-10-24 23:43:00,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26229 states. [2018-10-24 23:43:01,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26229 states to 26229 states and 33318 transitions. [2018-10-24 23:43:01,081 INFO L78 Accepts]: Start accepts. Automaton has 26229 states and 33318 transitions. Word has length 404 [2018-10-24 23:43:01,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:43:01,081 INFO L481 AbstractCegarLoop]: Abstraction has 26229 states and 33318 transitions. [2018-10-24 23:43:01,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-24 23:43:01,082 INFO L276 IsEmpty]: Start isEmpty. Operand 26229 states and 33318 transitions. [2018-10-24 23:43:01,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2018-10-24 23:43:01,093 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:43:01,094 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 23:43:01,094 INFO L424 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:43:01,095 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:43:01,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1671723896, now seen corresponding path program 1 times [2018-10-24 23:43:01,095 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:43:01,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:43:01,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:43:01,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:43:01,097 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:43:01,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:43:02,086 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 245 proven. 2 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-10-24 23:43:02,087 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:43:02,087 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 23:43:02,087 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 415 with the following transitions: [2018-10-24 23:43:02,088 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [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], [644], [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] [2018-10-24 23:43:02,095 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 23:43:02,097 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 23:43:04,296 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 23:43:04,296 INFO L272 AbstractInterpreter]: Visited 211 different actions 1047 times. Merged at 8 different actions 39 times. Widened at 1 different actions 3 times. Found 7 fixpoints after 3 different actions. Largest state had 24 variables. [2018-10-24 23:43:04,303 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:43:04,303 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 23:43:04,303 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:43:04,303 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 23:43:04,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:43:04,311 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 23:43:04,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:43:04,435 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 23:43:04,650 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 245 proven. 2 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-10-24 23:43:04,650 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 23:43:04,807 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-10-24 23:43:05,228 INFO L134 CoverageAnalysis]: Checked inductivity of 340 backedges. 245 proven. 2 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-10-24 23:43:05,260 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-24 23:43:05,261 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-10-24 23:43:05,261 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-24 23:43:05,262 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-24 23:43:05,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-24 23:43:05,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-10-24 23:43:05,263 INFO L87 Difference]: Start difference. First operand 26229 states and 33318 transitions. Second operand 9 states. [2018-10-24 23:43:15,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:43:15,097 INFO L93 Difference]: Finished difference Result 54696 states and 69981 transitions. [2018-10-24 23:43:15,097 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-24 23:43:15,098 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 414 [2018-10-24 23:43:15,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:43:15,212 INFO L225 Difference]: With dead ends: 54696 [2018-10-24 23:43:15,213 INFO L226 Difference]: Without dead ends: 29408 [2018-10-24 23:43:15,362 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 851 GetRequests, 832 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=128, Invalid=252, Unknown=0, NotChecked=0, Total=380 [2018-10-24 23:43:15,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29408 states. [2018-10-24 23:43:15,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29408 to 29186. [2018-10-24 23:43:15,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29186 states. [2018-10-24 23:43:15,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29186 states to 29186 states and 34262 transitions. [2018-10-24 23:43:15,870 INFO L78 Accepts]: Start accepts. Automaton has 29186 states and 34262 transitions. Word has length 414 [2018-10-24 23:43:15,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:43:15,870 INFO L481 AbstractCegarLoop]: Abstraction has 29186 states and 34262 transitions. [2018-10-24 23:43:15,870 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-24 23:43:15,870 INFO L276 IsEmpty]: Start isEmpty. Operand 29186 states and 34262 transitions. [2018-10-24 23:43:15,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2018-10-24 23:43:15,891 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:43:15,892 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 23:43:15,892 INFO L424 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:43:15,892 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:43:15,893 INFO L82 PathProgramCache]: Analyzing trace with hash -1572610096, now seen corresponding path program 1 times [2018-10-24 23:43:15,893 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:43:15,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:43:15,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:43:15,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:43:15,894 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:43:15,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:43:16,400 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2018-10-24 23:43:16,400 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:43:16,400 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 23:43:16,400 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:43:16,401 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 23:43:16,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 23:43:16,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 23:43:16,402 INFO L87 Difference]: Start difference. First operand 29186 states and 34262 transitions. Second operand 3 states. [2018-10-24 23:43:21,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:43:21,783 INFO L93 Difference]: Finished difference Result 62725 states and 75431 transitions. [2018-10-24 23:43:21,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 23:43:21,784 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 510 [2018-10-24 23:43:21,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:43:21,903 INFO L225 Difference]: With dead ends: 62725 [2018-10-24 23:43:21,903 INFO L226 Difference]: Without dead ends: 34480 [2018-10-24 23:43:21,982 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 23:43:22,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34480 states. [2018-10-24 23:43:22,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34480 to 34474. [2018-10-24 23:43:22,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34474 states. [2018-10-24 23:43:22,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34474 states to 34474 states and 40527 transitions. [2018-10-24 23:43:22,555 INFO L78 Accepts]: Start accepts. Automaton has 34474 states and 40527 transitions. Word has length 510 [2018-10-24 23:43:22,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:43:22,556 INFO L481 AbstractCegarLoop]: Abstraction has 34474 states and 40527 transitions. [2018-10-24 23:43:22,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 23:43:22,557 INFO L276 IsEmpty]: Start isEmpty. Operand 34474 states and 40527 transitions. [2018-10-24 23:43:22,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 658 [2018-10-24 23:43:22,607 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:43:22,608 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 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] [2018-10-24 23:43:22,608 INFO L424 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:43:22,608 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:43:22,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1977945066, now seen corresponding path program 1 times [2018-10-24 23:43:22,609 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:43:22,609 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:43:22,612 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:43:22,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:43:22,612 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:43:22,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:43:24,386 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 200 proven. 450 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2018-10-24 23:43:24,387 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:43:24,387 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 23:43:24,387 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 658 with the following transitions: [2018-10-24 23:43:24,387 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [221], [223], [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], [824], [835], [839], [842], [847], [849], [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], [974], [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], [1455], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-10-24 23:43:24,392 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 23:43:24,392 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 23:43:25,706 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 23:43:25,706 INFO L272 AbstractInterpreter]: Visited 265 different actions 1582 times. Merged at 9 different actions 56 times. Widened at 1 different actions 2 times. Found 11 fixpoints after 3 different actions. Largest state had 24 variables. [2018-10-24 23:43:25,715 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:43:25,715 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 23:43:25,715 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:43:25,715 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 23:43:25,724 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:43:25,724 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 23:43:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:43:25,922 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 23:43:27,049 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 569 proven. 41 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2018-10-24 23:43:27,050 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 23:43:28,417 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 111 proven. 539 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2018-10-24 23:43:28,439 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-24 23:43:28,440 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 18 [2018-10-24 23:43:28,440 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-24 23:43:28,442 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-24 23:43:28,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-24 23:43:28,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2018-10-24 23:43:28,443 INFO L87 Difference]: Start difference. First operand 34474 states and 40527 transitions. Second operand 13 states. Received shutdown request... [2018-10-24 23:43:33,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-10-24 23:43:33,503 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 23:43:33,509 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 23:43:33,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:43:33 BoogieIcfgContainer [2018-10-24 23:43:33,509 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 23:43:33,510 INFO L168 Benchmark]: Toolchain (without parser) took 228352.32 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.5 GB). Free memory was 1.4 GB in the beginning and 2.8 GB in the end (delta: -1.4 GB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-10-24 23:43:33,511 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 23:43:33,511 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1206.73 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-10-24 23:43:33,512 INFO L168 Benchmark]: Boogie Procedure Inliner took 427.80 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 730.3 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -844.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. [2018-10-24 23:43:33,513 INFO L168 Benchmark]: Boogie Preprocessor took 207.33 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. [2018-10-24 23:43:33,514 INFO L168 Benchmark]: RCFGBuilder took 7009.15 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 302.5 MB). Peak memory consumption was 302.5 MB. Max. memory is 7.1 GB. [2018-10-24 23:43:33,514 INFO L168 Benchmark]: TraceAbstraction took 219496.48 ms. Allocated memory was 2.2 GB in the beginning and 4.0 GB in the end (delta: 1.8 GB). Free memory was 1.8 GB in the beginning and 2.8 GB in the end (delta: -987.4 MB). Peak memory consumption was 802.0 MB. Max. memory is 7.1 GB. [2018-10-24 23:43:33,519 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 1206.73 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: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 427.80 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 730.3 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -844.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 207.33 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 28.9 MB). Peak memory consumption was 28.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7009.15 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 302.5 MB). Peak memory consumption was 302.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 219496.48 ms. Allocated memory was 2.2 GB in the beginning and 4.0 GB in the end (delta: 1.8 GB). Free memory was 1.8 GB in the beginning and 2.8 GB in the end (delta: -987.4 MB). Peak memory consumption was 802.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 79]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 79). Cancelled while BasicCegarLoop was constructing difference of abstraction (34474states) and FLOYD_HOARE automaton (currently 16 states, 13 states before enhancement),while ReachableStatesComputation was computing reachable states (4809 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 219.4s OverallTime, 12 OverallIterations, 5 TraceHistogramMax, 193.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3601 SDtfs, 17677 SDslu, 2756 SDs, 0 SdLazy, 27961 SolverSat, 5109 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 158.2s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 3593 GetRequests, 3467 SyntacticMatches, 24 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34474occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 6.9s AbstIntTime, 5 AbstIntIterations, 2 AbstIntStrong, 0.9968666400997229 AbsIntWeakeningRatio, 0.11196911196911197 AbsIntAvgWeakeningVarsNumRemoved, 7.086872586872587 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.8s AutomataMinimizationTime, 11 MinimizatonAttempts, 1180 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 9.5s InterpolantComputationTime, 4743 NumberOfCodeBlocks, 4743 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 6200 ConstructedInterpolants, 0 QuantifiedInterpolants, 15623174 SizeOfPredicates, 8 NumberOfNonLiveVariables, 2136 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 18 InterpolantComputations, 7 PerfectInterpolantSequences, 3710/4923 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown