java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label37_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 22:20:00,986 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 22:20:00,988 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 22:20:01,004 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 22:20:01,004 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 22:20:01,005 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 22:20:01,007 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 22:20:01,008 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 22:20:01,010 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 22:20:01,011 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 22:20:01,012 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 22:20:01,012 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 22:20:01,013 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 22:20:01,014 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 22:20:01,015 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 22:20:01,016 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 22:20:01,016 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 22:20:01,018 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 22:20:01,020 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 22:20:01,022 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 22:20:01,023 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 22:20:01,024 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 22:20:01,026 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 22:20:01,033 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 22:20:01,033 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 22:20:01,034 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 22:20:01,035 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 22:20:01,035 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 22:20:01,058 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 22:20:01,060 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 22:20:01,060 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 22:20:01,064 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 22:20:01,064 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 22:20:01,065 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 22:20:01,065 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 22:20:01,065 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 22:20:01,065 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 22:20:01,065 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 22:20:01,066 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 22:20:01,066 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 22:20:01,067 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 22:20:01,067 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 22:20:01,067 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 22:20:01,068 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 22:20:01,069 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 22:20:01,069 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 22:20:01,069 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 22:20:01,069 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 22:20:01,069 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 22:20:01,070 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 22:20:01,070 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 22:20:01,070 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 22:20:01,070 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 22:20:01,071 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 22:20:01,071 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 22:20:01,071 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 22:20:01,071 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 22:20:01,071 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 22:20:01,072 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 22:20:01,072 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 22:20:01,072 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 22:20:01,072 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 22:20:01,120 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 22:20:01,141 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 22:20:01,145 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 22:20:01,147 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 22:20:01,147 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 22:20:01,148 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label37_true-unreach-call.c [2018-10-24 22:20:01,220 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d47f4d997/7f2793bd30814992ad35c6111265e19d/FLAGbe4fdec58 [2018-10-24 22:20:02,048 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 22:20:02,049 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label37_true-unreach-call.c [2018-10-24 22:20:02,085 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d47f4d997/7f2793bd30814992ad35c6111265e19d/FLAGbe4fdec58 [2018-10-24 22:20:02,108 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/d47f4d997/7f2793bd30814992ad35c6111265e19d [2018-10-24 22:20:02,122 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 22:20:02,124 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 22:20:02,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 22:20:02,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 22:20:02,131 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 22:20:02,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:20:02" (1/1) ... [2018-10-24 22:20:02,136 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b1086b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:02, skipping insertion in model container [2018-10-24 22:20:02,136 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 10:20:02" (1/1) ... [2018-10-24 22:20:02,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 22:20:02,308 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 22:20:03,389 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:20:03,394 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 22:20:03,846 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 22:20:03,877 INFO L193 MainTranslator]: Completed translation [2018-10-24 22:20:03,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:03 WrapperNode [2018-10-24 22:20:03,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 22:20:03,879 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 22:20:03,880 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 22:20:03,880 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 22:20:03,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:03" (1/1) ... [2018-10-24 22:20:03,960 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:03" (1/1) ... [2018-10-24 22:20:04,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 22:20:04,327 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 22:20:04,327 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 22:20:04,327 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 22:20:04,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:03" (1/1) ... [2018-10-24 22:20:04,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:03" (1/1) ... [2018-10-24 22:20:04,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:03" (1/1) ... [2018-10-24 22:20:04,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:03" (1/1) ... [2018-10-24 22:20:04,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:03" (1/1) ... [2018-10-24 22:20:04,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:03" (1/1) ... [2018-10-24 22:20:04,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:03" (1/1) ... [2018-10-24 22:20:04,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 22:20:04,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 22:20:04,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 22:20:04,521 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 22:20:04,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:03" (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 22:20:04,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 22:20:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 22:20:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-24 22:20:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-24 22:20:04,595 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 22:20:04,595 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 22:20:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 22:20:04,596 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 22:20:04,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 22:20:04,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 22:20:04,597 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 22:20:04,598 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 22:20:12,206 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 22:20:12,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:20:12 BoogieIcfgContainer [2018-10-24 22:20:12,209 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 22:20:12,210 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 22:20:12,210 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 22:20:12,214 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 22:20:12,214 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 10:20:02" (1/3) ... [2018-10-24 22:20:12,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba2b955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:20:12, skipping insertion in model container [2018-10-24 22:20:12,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 10:20:03" (2/3) ... [2018-10-24 22:20:12,216 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ba2b955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 10:20:12, skipping insertion in model container [2018-10-24 22:20:12,216 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 10:20:12" (3/3) ... [2018-10-24 22:20:12,218 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label37_true-unreach-call.c [2018-10-24 22:20:12,228 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 22:20:12,238 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 22:20:12,257 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 22:20:12,305 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 22:20:12,306 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 22:20:12,306 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 22:20:12,306 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 22:20:12,306 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 22:20:12,306 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 22:20:12,307 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 22:20:12,307 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 22:20:12,347 INFO L276 IsEmpty]: Start isEmpty. Operand 775 states. [2018-10-24 22:20:12,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2018-10-24 22:20:12,358 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:20:12,359 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 22:20:12,362 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:20:12,368 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:20:12,369 INFO L82 PathProgramCache]: Analyzing trace with hash -986034585, now seen corresponding path program 1 times [2018-10-24 22:20:12,371 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:20:12,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:20:12,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:20:12,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:20:12,426 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:20:12,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:20:12,924 WARN L179 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 22:20:13,028 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 22:20:13,031 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:20:13,031 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 22:20:13,031 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:20:13,038 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 22:20:13,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 22:20:13,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 22:20:13,059 INFO L87 Difference]: Start difference. First operand 775 states. Second operand 3 states. [2018-10-24 22:20:19,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:20:19,816 INFO L93 Difference]: Finished difference Result 2251 states and 4322 transitions. [2018-10-24 22:20:19,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 22:20:19,819 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2018-10-24 22:20:19,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:20:19,856 INFO L225 Difference]: With dead ends: 2251 [2018-10-24 22:20:19,856 INFO L226 Difference]: Without dead ends: 1474 [2018-10-24 22:20:19,869 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 22:20:19,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1474 states. [2018-10-24 22:20:20,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1474 to 1474. [2018-10-24 22:20:20,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2018-10-24 22:20:20,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 2721 transitions. [2018-10-24 22:20:20,044 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 2721 transitions. Word has length 63 [2018-10-24 22:20:20,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:20:20,045 INFO L481 AbstractCegarLoop]: Abstraction has 1474 states and 2721 transitions. [2018-10-24 22:20:20,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 22:20:20,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 2721 transitions. [2018-10-24 22:20:20,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-10-24 22:20:20,059 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:20:20,059 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 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 22:20:20,060 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:20:20,060 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:20:20,060 INFO L82 PathProgramCache]: Analyzing trace with hash 149408540, now seen corresponding path program 1 times [2018-10-24 22:20:20,060 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:20:20,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:20:20,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:20:20,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:20:20,063 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:20:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:20:20,336 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:20:20,336 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:20:20,337 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 22:20:20,337 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:20:20,339 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 22:20:20,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 22:20:20,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 22:20:20,340 INFO L87 Difference]: Start difference. First operand 1474 states and 2721 transitions. Second operand 5 states. [2018-10-24 22:20:28,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:20:28,058 INFO L93 Difference]: Finished difference Result 3698 states and 6787 transitions. [2018-10-24 22:20:28,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:20:28,059 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 135 [2018-10-24 22:20:28,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:20:28,075 INFO L225 Difference]: With dead ends: 3698 [2018-10-24 22:20:28,075 INFO L226 Difference]: Without dead ends: 2230 [2018-10-24 22:20:28,081 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 22:20:28,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2230 states. [2018-10-24 22:20:28,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2230 to 2209. [2018-10-24 22:20:28,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2209 states. [2018-10-24 22:20:28,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2209 states to 2209 states and 3833 transitions. [2018-10-24 22:20:28,151 INFO L78 Accepts]: Start accepts. Automaton has 2209 states and 3833 transitions. Word has length 135 [2018-10-24 22:20:28,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:20:28,152 INFO L481 AbstractCegarLoop]: Abstraction has 2209 states and 3833 transitions. [2018-10-24 22:20:28,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 22:20:28,152 INFO L276 IsEmpty]: Start isEmpty. Operand 2209 states and 3833 transitions. [2018-10-24 22:20:28,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2018-10-24 22:20:28,158 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:20:28,158 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:20:28,158 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:20:28,159 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:20:28,159 INFO L82 PathProgramCache]: Analyzing trace with hash -81887667, now seen corresponding path program 1 times [2018-10-24 22:20:28,159 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:20:28,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:20:28,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:20:28,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:20:28,161 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:20:28,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:20:28,467 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:20:28,468 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:20:28,468 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 22:20:28,468 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:20:28,469 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 22:20:28,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 22:20:28,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 22:20:28,470 INFO L87 Difference]: Start difference. First operand 2209 states and 3833 transitions. Second operand 6 states. [2018-10-24 22:20:36,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:20:36,648 INFO L93 Difference]: Finished difference Result 5866 states and 10122 transitions. [2018-10-24 22:20:36,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:20:36,651 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 158 [2018-10-24 22:20:36,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:20:36,677 INFO L225 Difference]: With dead ends: 5866 [2018-10-24 22:20:36,677 INFO L226 Difference]: Without dead ends: 3663 [2018-10-24 22:20:36,688 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 22:20:36,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3663 states. [2018-10-24 22:20:36,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3663 to 3639. [2018-10-24 22:20:36,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3639 states. [2018-10-24 22:20:36,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3639 states to 3639 states and 5517 transitions. [2018-10-24 22:20:36,806 INFO L78 Accepts]: Start accepts. Automaton has 3639 states and 5517 transitions. Word has length 158 [2018-10-24 22:20:36,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:20:36,807 INFO L481 AbstractCegarLoop]: Abstraction has 3639 states and 5517 transitions. [2018-10-24 22:20:36,807 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 22:20:36,807 INFO L276 IsEmpty]: Start isEmpty. Operand 3639 states and 5517 transitions. [2018-10-24 22:20:36,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2018-10-24 22:20:36,814 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:20:36,815 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:20:36,815 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:20:36,815 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:20:36,816 INFO L82 PathProgramCache]: Analyzing trace with hash -2044577259, now seen corresponding path program 1 times [2018-10-24 22:20:36,816 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:20:36,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:20:36,817 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:20:36,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:20:36,817 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:20:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:20:37,161 WARN L179 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 22:20:37,485 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:20:37,486 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:20:37,486 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 22:20:37,486 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:20:37,487 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 22:20:37,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 22:20:37,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 22:20:37,488 INFO L87 Difference]: Start difference. First operand 3639 states and 5517 transitions. Second operand 6 states. [2018-10-24 22:20:45,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:20:45,895 INFO L93 Difference]: Finished difference Result 8735 states and 13271 transitions. [2018-10-24 22:20:45,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:20:45,898 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 162 [2018-10-24 22:20:45,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:20:45,922 INFO L225 Difference]: With dead ends: 8735 [2018-10-24 22:20:45,922 INFO L226 Difference]: Without dead ends: 5102 [2018-10-24 22:20:45,934 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 22:20:45,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5102 states. [2018-10-24 22:20:46,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5102 to 5084. [2018-10-24 22:20:46,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5084 states. [2018-10-24 22:20:46,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5084 states to 5084 states and 6940 transitions. [2018-10-24 22:20:46,062 INFO L78 Accepts]: Start accepts. Automaton has 5084 states and 6940 transitions. Word has length 162 [2018-10-24 22:20:46,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:20:46,063 INFO L481 AbstractCegarLoop]: Abstraction has 5084 states and 6940 transitions. [2018-10-24 22:20:46,063 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 22:20:46,063 INFO L276 IsEmpty]: Start isEmpty. Operand 5084 states and 6940 transitions. [2018-10-24 22:20:46,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-10-24 22:20:46,067 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:20:46,068 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:20:46,068 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:20:46,068 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:20:46,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1457890224, now seen corresponding path program 1 times [2018-10-24 22:20:46,068 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:20:46,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:20:46,069 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:20:46,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:20:46,070 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:20:46,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:20:46,378 WARN L179 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 22:20:46,768 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 22:20:46,769 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 22:20:46,769 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 22:20:46,769 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:20:46,770 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 22:20:46,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 22:20:46,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 22:20:46,771 INFO L87 Difference]: Start difference. First operand 5084 states and 6940 transitions. Second operand 6 states. [2018-10-24 22:20:52,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:20:52,589 INFO L93 Difference]: Finished difference Result 13307 states and 18750 transitions. [2018-10-24 22:20:52,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:20:52,597 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 193 [2018-10-24 22:20:52,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:20:52,633 INFO L225 Difference]: With dead ends: 13307 [2018-10-24 22:20:52,633 INFO L226 Difference]: Without dead ends: 8229 [2018-10-24 22:20:52,648 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 22:20:52,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8229 states. [2018-10-24 22:20:52,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8229 to 8128. [2018-10-24 22:20:52,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8128 states. [2018-10-24 22:20:52,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8128 states to 8128 states and 10817 transitions. [2018-10-24 22:20:52,852 INFO L78 Accepts]: Start accepts. Automaton has 8128 states and 10817 transitions. Word has length 193 [2018-10-24 22:20:52,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:20:52,853 INFO L481 AbstractCegarLoop]: Abstraction has 8128 states and 10817 transitions. [2018-10-24 22:20:52,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 22:20:52,853 INFO L276 IsEmpty]: Start isEmpty. Operand 8128 states and 10817 transitions. [2018-10-24 22:20:52,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2018-10-24 22:20:52,860 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:20:52,860 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 22:20:52,860 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:20:52,861 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:20:52,861 INFO L82 PathProgramCache]: Analyzing trace with hash 765440314, now seen corresponding path program 1 times [2018-10-24 22:20:52,861 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:20:52,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:20:52,862 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:20:52,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:20:52,862 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:20:52,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:20:53,261 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 112 proven. 67 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 22:20:53,262 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 22:20:53,262 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 22:20:53,263 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 227 with the following transitions: [2018-10-24 22:20:53,265 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2015], [2023], [2027], [2029], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2124], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2200], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-24 22:20:53,348 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 22:20:53,348 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 22:20:55,398 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 22:20:55,400 INFO L272 AbstractInterpreter]: Visited 96 different actions 96 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-24 22:20:55,432 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:20:55,433 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 22:20:57,295 INFO L232 lantSequenceWeakener]: Weakened 218 states. On average, predicates are now at 78.3% of their original sizes. [2018-10-24 22:20:57,296 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 22:20:57,738 INFO L413 sIntCurrentIteration]: We have 225 unified AI predicates [2018-10-24 22:20:57,738 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 22:20:57,739 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 22:20:57,739 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 11 [2018-10-24 22:20:57,739 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 22:20:57,740 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 22:20:57,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 22:20:57,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-10-24 22:20:57,741 INFO L87 Difference]: Start difference. First operand 8128 states and 10817 transitions. Second operand 7 states. [2018-10-24 22:21:00,928 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 22:22:43,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 22:22:43,548 INFO L93 Difference]: Finished difference Result 16955 states and 22499 transitions. [2018-10-24 22:22:43,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 22:22:43,549 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 226 [2018-10-24 22:22:43,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 22:22:43,578 INFO L225 Difference]: With dead ends: 16955 [2018-10-24 22:22:43,578 INFO L226 Difference]: Without dead ends: 8833 [2018-10-24 22:22:43,594 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 226 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 22:22:43,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8833 states. [2018-10-24 22:22:43,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8833 to 8831. [2018-10-24 22:22:43,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8831 states. [2018-10-24 22:22:43,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8831 states to 8831 states and 11532 transitions. [2018-10-24 22:22:43,774 INFO L78 Accepts]: Start accepts. Automaton has 8831 states and 11532 transitions. Word has length 226 [2018-10-24 22:22:43,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 22:22:43,775 INFO L481 AbstractCegarLoop]: Abstraction has 8831 states and 11532 transitions. [2018-10-24 22:22:43,775 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 22:22:43,775 INFO L276 IsEmpty]: Start isEmpty. Operand 8831 states and 11532 transitions. [2018-10-24 22:22:43,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2018-10-24 22:22:43,787 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 22:22:43,787 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, 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, 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] [2018-10-24 22:22:43,788 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 22:22:43,788 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:22:43,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1582089628, now seen corresponding path program 1 times [2018-10-24 22:22:43,788 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 22:22:43,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:22:43,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 22:22:43,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 22:22:43,791 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 22:22:43,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 22:22:44,542 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 227 proven. 171 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-24 22:22:44,542 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 22:22:44,542 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 22:22:44,543 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 414 with the following transitions: [2018-10-24 22:22:44,544 INFO L202 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2015], [2023], [2027], [2029], [2032], [2040], [2048], [2056], [2064], [2072], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2124], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2197], [2200], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2584], [2996], [3000], [3004], [3010], [3014], [3016], [3025], [3026], [3027], [3029], [3030] [2018-10-24 22:22:44,557 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 22:22:44,557 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 22:22:57,421 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 22:22:57,422 INFO L272 AbstractInterpreter]: Visited 196 different actions 385 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-24 22:22:57,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 22:22:57,431 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 22:23:01,302 INFO L232 lantSequenceWeakener]: Weakened 55 states. On average, predicates are now at 77.93% of their original sizes. [2018-10-24 22:23:01,302 INFO L411 sIntCurrentIteration]: Unifying AI predicates Received shutdown request... [2018-10-24 22:23:52,369 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 22:23:52,374 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 22:23:52,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 10:23:52 BoogieIcfgContainer [2018-10-24 22:23:52,374 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 22:23:52,375 INFO L168 Benchmark]: Toolchain (without parser) took 230252.89 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 658.6 MB. Max. memory is 7.1 GB. [2018-10-24 22:23:52,377 INFO L168 Benchmark]: CDTParser took 0.19 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 22:23:52,377 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1753.49 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-10-24 22:23:52,378 INFO L168 Benchmark]: Boogie Procedure Inliner took 446.85 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 763.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -937.5 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. [2018-10-24 22:23:52,379 INFO L168 Benchmark]: Boogie Preprocessor took 193.65 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2018-10-24 22:23:52,380 INFO L168 Benchmark]: RCFGBuilder took 7688.51 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 509.0 MB). Peak memory consumption was 509.0 MB. Max. memory is 7.1 GB. [2018-10-24 22:23:52,381 INFO L168 Benchmark]: TraceAbstraction took 220164.40 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 3.3 GB in the end (delta: -1.7 GB). Peak memory consumption was 172.0 MB. Max. memory is 7.1 GB. [2018-10-24 22:23:52,389 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1753.49 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 446.85 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 763.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -937.5 MB). Peak memory consumption was 45.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 193.65 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7688.51 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.7 GB in the end (delta: 509.0 MB). Peak memory consumption was 509.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 220164.40 ms. Allocated memory was 2.3 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.7 GB in the beginning and 3.3 GB in the end (delta: -1.7 GB). Peak memory consumption was 172.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 177]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 177). Cancelled while BasicCegarLoop was analyzing trace of length 414 with TraceHistMax 4,while AbsIntCurrentIteration was generating AI predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 13 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 775 locations, 1 error locations. TIMEOUT Result, 220.0s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 142.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1419 SDtfs, 13523 SDslu, 912 SDs, 0 SdLazy, 24318 SolverSat, 5595 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 98.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 270 GetRequests, 230 SyntacticMatches, 6 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8831occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 15.0s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9961635155734533 AbsIntWeakeningRatio, 0.09105180533751962 AbsIntAvgWeakeningVarsNumRemoved, 491.1020408163265 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 6 MinimizatonAttempts, 166 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 937 NumberOfCodeBlocks, 937 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 931 ConstructedInterpolants, 0 QuantifiedInterpolants, 616229 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 341/408 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown