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/Problem17_label37_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 23:46:53,051 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 23:46:53,054 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 23:46:53,069 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 23:46:53,070 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 23:46:53,071 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 23:46:53,072 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 23:46:53,074 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 23:46:53,076 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 23:46:53,077 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 23:46:53,078 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 23:46:53,079 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 23:46:53,080 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 23:46:53,081 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 23:46:53,082 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 23:46:53,083 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 23:46:53,084 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 23:46:53,086 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 23:46:53,088 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 23:46:53,090 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 23:46:53,091 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 23:46:53,092 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 23:46:53,095 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 23:46:53,096 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 23:46:53,096 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 23:46:53,097 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 23:46:53,098 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 23:46:53,099 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 23:46:53,100 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 23:46:53,102 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 23:46:53,102 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 23:46:53,103 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 23:46:53,103 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 23:46:53,103 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 23:46:53,104 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 23:46:53,105 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 23:46:53,105 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 23:46:53,122 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 23:46:53,122 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 23:46:53,123 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 23:46:53,123 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 23:46:53,124 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 23:46:53,124 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 23:46:53,124 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-24 23:46:53,124 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 23:46:53,124 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-24 23:46:53,125 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 23:46:53,125 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 23:46:53,125 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 23:46:53,125 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 23:46:53,125 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 23:46:53,126 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 23:46:53,126 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 23:46:53,127 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 23:46:53,127 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 23:46:53,127 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 23:46:53,127 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 23:46:53,127 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 23:46:53,128 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 23:46:53,128 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 23:46:53,128 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 23:46:53,128 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 23:46:53,128 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 23:46:53,129 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 23:46:53,129 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 23:46:53,129 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 23:46:53,129 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 23:46:53,130 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 23:46:53,130 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 23:46:53,130 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 23:46:53,130 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 23:46:53,130 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 23:46:53,131 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 23:46:53,176 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 23:46:53,190 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 23:46:53,194 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 23:46:53,196 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 23:46:53,196 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 23:46:53,197 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label37_false-unreach-call.c [2018-10-24 23:46:53,258 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6da12d41a/a5f3a2026ad144148b9fe2d690b3c7b0/FLAGbe81f9339 [2018-10-24 23:46:53,992 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 23:46:53,994 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label37_false-unreach-call.c [2018-10-24 23:46:54,021 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6da12d41a/a5f3a2026ad144148b9fe2d690b3c7b0/FLAGbe81f9339 [2018-10-24 23:46:54,042 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/6da12d41a/a5f3a2026ad144148b9fe2d690b3c7b0 [2018-10-24 23:46:54,055 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 23:46:54,057 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 23:46:54,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 23:46:54,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 23:46:54,067 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 23:46:54,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:46:54" (1/1) ... [2018-10-24 23:46:54,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46764b1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:46:54, skipping insertion in model container [2018-10-24 23:46:54,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:46:54" (1/1) ... [2018-10-24 23:46:54,085 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 23:46:54,214 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 23:46:55,205 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:46:55,210 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 23:46:55,581 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 23:46:55,604 INFO L193 MainTranslator]: Completed translation [2018-10-24 23:46:55,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:46:55 WrapperNode [2018-10-24 23:46:55,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 23:46:55,605 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 23:46:55,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 23:46:55,606 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 23:46:55,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:46:55" (1/1) ... [2018-10-24 23:46:55,664 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:46:55" (1/1) ... [2018-10-24 23:46:56,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 23:46:56,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 23:46:56,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 23:46:56,039 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 23:46:56,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:46:55" (1/1) ... [2018-10-24 23:46:56,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:46:55" (1/1) ... [2018-10-24 23:46:56,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:46:55" (1/1) ... [2018-10-24 23:46:56,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:46:55" (1/1) ... [2018-10-24 23:46:56,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:46:55" (1/1) ... [2018-10-24 23:46:56,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:46:55" (1/1) ... [2018-10-24 23:46:56,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:46:55" (1/1) ... [2018-10-24 23:46:56,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 23:46:56,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 23:46:56,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 23:46:56,297 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 23:46:56,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:46:55" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 23:46:56,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 23:46:56,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 23:46:56,369 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 23:46:56,369 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 23:46:56,370 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 23:46:56,370 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 23:46:56,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 23:46:56,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 23:46:56,370 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 23:46:56,371 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 23:47:08,024 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 23:47:08,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:47:08 BoogieIcfgContainer [2018-10-24 23:47:08,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 23:47:08,027 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 23:47:08,027 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 23:47:08,031 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 23:47:08,031 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:46:54" (1/3) ... [2018-10-24 23:47:08,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20d91924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:47:08, skipping insertion in model container [2018-10-24 23:47:08,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:46:55" (2/3) ... [2018-10-24 23:47:08,032 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20d91924 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:47:08, skipping insertion in model container [2018-10-24 23:47:08,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:47:08" (3/3) ... [2018-10-24 23:47:08,034 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label37_false-unreach-call.c [2018-10-24 23:47:08,046 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 23:47:08,057 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 23:47:08,075 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 23:47:08,125 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 23:47:08,125 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 23:47:08,126 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 23:47:08,126 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 23:47:08,126 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 23:47:08,126 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 23:47:08,126 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 23:47:08,126 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 23:47:08,181 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-24 23:47:08,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-24 23:47:08,187 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:47:08,188 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] [2018-10-24 23:47:08,190 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:47:08,196 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:47:08,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1359404802, now seen corresponding path program 1 times [2018-10-24 23:47:08,199 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:47:08,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:47:08,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:47:08,241 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:47:08,241 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:47:08,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:47:08,648 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-10-24 23:47:08,657 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 23:47:08,659 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:47:08,660 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 23:47:08,660 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:47:08,666 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 23:47:08,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 23:47:08,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 23:47:08,686 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-24 23:47:20,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:47:20,057 INFO L93 Difference]: Finished difference Result 2137 states and 3966 transitions. [2018-10-24 23:47:20,058 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 23:47:20,059 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 25 [2018-10-24 23:47:20,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:47:20,093 INFO L225 Difference]: With dead ends: 2137 [2018-10-24 23:47:20,094 INFO L226 Difference]: Without dead ends: 1527 [2018-10-24 23:47:20,106 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 23:47:20,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1527 states. [2018-10-24 23:47:20,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1527 to 1513. [2018-10-24 23:47:20,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1513 states. [2018-10-24 23:47:20,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1513 states to 1513 states and 2344 transitions. [2018-10-24 23:47:20,274 INFO L78 Accepts]: Start accepts. Automaton has 1513 states and 2344 transitions. Word has length 25 [2018-10-24 23:47:20,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:47:20,274 INFO L481 AbstractCegarLoop]: Abstraction has 1513 states and 2344 transitions. [2018-10-24 23:47:20,275 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 23:47:20,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1513 states and 2344 transitions. [2018-10-24 23:47:20,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-10-24 23:47:20,282 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:47:20,283 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 23:47:20,284 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:47:20,284 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:47:20,284 INFO L82 PathProgramCache]: Analyzing trace with hash -72391217, now seen corresponding path program 1 times [2018-10-24 23:47:20,285 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:47:20,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:47:20,286 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:47:20,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:47:20,287 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:47:20,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:47:20,698 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 23:47:20,761 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:47:20,761 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:47:20,761 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-24 23:47:20,761 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:47:20,763 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-24 23:47:20,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-24 23:47:20,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-24 23:47:20,764 INFO L87 Difference]: Start difference. First operand 1513 states and 2344 transitions. Second operand 5 states. [2018-10-24 23:47:30,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:47:30,738 INFO L93 Difference]: Finished difference Result 4413 states and 7007 transitions. [2018-10-24 23:47:30,739 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 23:47:30,739 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 97 [2018-10-24 23:47:30,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:47:30,760 INFO L225 Difference]: With dead ends: 4413 [2018-10-24 23:47:30,760 INFO L226 Difference]: Without dead ends: 2906 [2018-10-24 23:47:30,766 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-24 23:47:30,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2906 states. [2018-10-24 23:47:30,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2906 to 2873. [2018-10-24 23:47:30,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2873 states. [2018-10-24 23:47:30,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2873 states to 2873 states and 4204 transitions. [2018-10-24 23:47:30,851 INFO L78 Accepts]: Start accepts. Automaton has 2873 states and 4204 transitions. Word has length 97 [2018-10-24 23:47:30,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:47:30,852 INFO L481 AbstractCegarLoop]: Abstraction has 2873 states and 4204 transitions. [2018-10-24 23:47:30,852 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-24 23:47:30,852 INFO L276 IsEmpty]: Start isEmpty. Operand 2873 states and 4204 transitions. [2018-10-24 23:47:30,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2018-10-24 23:47:30,856 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:47:30,856 INFO L375 BasicCegarLoop]: trace histogram [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 23:47:30,857 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:47:30,857 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:47:30,857 INFO L82 PathProgramCache]: Analyzing trace with hash 902926633, now seen corresponding path program 1 times [2018-10-24 23:47:30,857 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:47:30,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:47:30,858 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:47:30,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:47:30,859 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:47:30,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:47:31,136 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:47:31,136 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:47:31,137 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 23:47:31,138 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 101 with the following transitions: [2018-10-24 23:47:31,140 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [810], [812], [815], [823], [831], [839], [847], [855], [863], [871], [879], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 23:47:31,192 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 23:47:31,192 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 23:47:32,928 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 23:47:32,929 INFO L272 AbstractInterpreter]: Visited 83 different actions 235 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-24 23:47:32,974 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:47:32,975 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 23:47:32,976 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:47:32,976 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 23:47:32,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:47:32,991 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 23:47:33,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:47:33,067 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 23:48:01,739 WARN L179 SmtUtils]: Spent 24.28 s on a formula simplification. DAG size of input: 135 DAG size of output: 98 [2018-10-24 23:48:21,981 WARN L179 SmtUtils]: Spent 16.09 s on a formula simplification. DAG size of input: 98 DAG size of output: 73 [2018-10-24 23:48:22,369 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:48:22,370 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 23:48:26,968 WARN L179 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 133 DAG size of output: 16 [2018-10-24 23:48:27,176 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 28 [2018-10-24 23:48:29,895 WARN L179 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 26 [2018-10-24 23:48:30,196 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:48:30,218 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-10-24 23:48:30,219 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 15 [2018-10-24 23:48:30,219 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:48:30,219 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 23:48:30,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 23:48:30,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=159, Unknown=5, NotChecked=0, Total=210 [2018-10-24 23:48:30,221 INFO L87 Difference]: Start difference. First operand 2873 states and 4204 transitions. Second operand 6 states. [2018-10-24 23:49:21,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:49:21,218 INFO L93 Difference]: Finished difference Result 11151 states and 17026 transitions. [2018-10-24 23:49:21,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 23:49:21,219 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 100 [2018-10-24 23:49:21,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:49:21,280 INFO L225 Difference]: With dead ends: 11151 [2018-10-24 23:49:21,281 INFO L226 Difference]: Without dead ends: 8284 [2018-10-24 23:49:21,303 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 56.2s TimeCoverageRelationStatistics Valid=54, Invalid=181, Unknown=5, NotChecked=0, Total=240 [2018-10-24 23:49:21,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8284 states. [2018-10-24 23:49:21,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8284 to 8245. [2018-10-24 23:49:21,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8245 states. [2018-10-24 23:49:21,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8245 states to 8245 states and 12235 transitions. [2018-10-24 23:49:21,555 INFO L78 Accepts]: Start accepts. Automaton has 8245 states and 12235 transitions. Word has length 100 [2018-10-24 23:49:21,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:49:21,556 INFO L481 AbstractCegarLoop]: Abstraction has 8245 states and 12235 transitions. [2018-10-24 23:49:21,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 23:49:21,556 INFO L276 IsEmpty]: Start isEmpty. Operand 8245 states and 12235 transitions. [2018-10-24 23:49:21,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-10-24 23:49:21,571 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:49:21,571 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-10-24 23:49:21,571 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:49:21,571 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:49:21,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1080098981, now seen corresponding path program 1 times [2018-10-24 23:49:21,575 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:49:21,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:49:21,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:49:21,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:49:21,577 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:49:21,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:49:21,872 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:49:21,872 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:49:21,872 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 23:49:21,872 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:49:21,873 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 23:49:21,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 23:49:21,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 23:49:21,873 INFO L87 Difference]: Start difference. First operand 8245 states and 12235 transitions. Second operand 6 states. [2018-10-24 23:49:26,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:49:26,924 INFO L93 Difference]: Finished difference Result 20160 states and 30667 transitions. [2018-10-24 23:49:26,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 23:49:26,930 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 175 [2018-10-24 23:49:26,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:49:27,015 INFO L225 Difference]: With dead ends: 20160 [2018-10-24 23:49:27,015 INFO L226 Difference]: Without dead ends: 11921 [2018-10-24 23:49:27,071 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 23:49:27,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11921 states. [2018-10-24 23:49:27,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11921 to 11815. [2018-10-24 23:49:27,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11815 states. [2018-10-24 23:49:27,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11815 states to 11815 states and 15419 transitions. [2018-10-24 23:49:27,407 INFO L78 Accepts]: Start accepts. Automaton has 11815 states and 15419 transitions. Word has length 175 [2018-10-24 23:49:27,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:49:27,408 INFO L481 AbstractCegarLoop]: Abstraction has 11815 states and 15419 transitions. [2018-10-24 23:49:27,408 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 23:49:27,408 INFO L276 IsEmpty]: Start isEmpty. Operand 11815 states and 15419 transitions. [2018-10-24 23:49:27,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-10-24 23:49:27,412 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:49:27,412 INFO L375 BasicCegarLoop]: trace histogram [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, 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 23:49:27,412 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:49:27,412 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:49:27,413 INFO L82 PathProgramCache]: Analyzing trace with hash 109060680, now seen corresponding path program 1 times [2018-10-24 23:49:27,413 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:49:27,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:49:27,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:49:27,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:49:27,414 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:49:27,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:49:27,660 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-24 23:49:27,660 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:49:27,660 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 23:49:27,661 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:49:27,661 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 23:49:27,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 23:49:27,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 23:49:27,662 INFO L87 Difference]: Start difference. First operand 11815 states and 15419 transitions. Second operand 3 states. [2018-10-24 23:49:33,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:49:33,094 INFO L93 Difference]: Finished difference Result 31091 states and 41430 transitions. [2018-10-24 23:49:33,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 23:49:33,098 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2018-10-24 23:49:33,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:49:33,191 INFO L225 Difference]: With dead ends: 31091 [2018-10-24 23:49:33,191 INFO L226 Difference]: Without dead ends: 19282 [2018-10-24 23:49:33,251 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 23:49:33,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19282 states. [2018-10-24 23:49:33,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19282 to 19281. [2018-10-24 23:49:33,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19281 states. [2018-10-24 23:49:33,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19281 states to 19281 states and 24038 transitions. [2018-10-24 23:49:33,695 INFO L78 Accepts]: Start accepts. Automaton has 19281 states and 24038 transitions. Word has length 189 [2018-10-24 23:49:33,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:49:33,696 INFO L481 AbstractCegarLoop]: Abstraction has 19281 states and 24038 transitions. [2018-10-24 23:49:33,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 23:49:33,696 INFO L276 IsEmpty]: Start isEmpty. Operand 19281 states and 24038 transitions. [2018-10-24 23:49:33,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-10-24 23:49:33,704 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:49:33,705 INFO L375 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 23:49:33,705 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:49:33,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:49:33,705 INFO L82 PathProgramCache]: Analyzing trace with hash -596999475, now seen corresponding path program 1 times [2018-10-24 23:49:33,705 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:49:33,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:49:33,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:49:33,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:49:33,707 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:49:33,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:49:34,062 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 23:49:34,868 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 31 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 23:49:34,868 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:49:34,868 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 23:49:34,869 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 211 with the following transitions: [2018-10-24 23:49:34,869 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [810], [812], [815], [823], [831], [839], [847], [855], [863], [871], [879], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 23:49:34,876 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 23:49:34,876 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 23:49:36,597 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 23:49:36,598 INFO L272 AbstractInterpreter]: Visited 119 different actions 343 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-24 23:49:36,625 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:49:36,625 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 23:49:36,625 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:49:36,625 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 23:49:36,642 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:49:36,643 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 23:49:36,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:49:36,737 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 23:49:36,966 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-10-24 23:49:36,966 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 23:49:37,484 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-10-24 23:49:37,516 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-10-24 23:49:37,516 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2018-10-24 23:49:37,516 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:49:37,517 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 23:49:37,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 23:49:37,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-10-24 23:49:37,518 INFO L87 Difference]: Start difference. First operand 19281 states and 24038 transitions. Second operand 3 states. [2018-10-24 23:49:41,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:49:41,383 INFO L93 Difference]: Finished difference Result 38556 states and 48185 transitions. [2018-10-24 23:49:41,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 23:49:41,385 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 210 [2018-10-24 23:49:41,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:49:41,452 INFO L225 Difference]: With dead ends: 38556 [2018-10-24 23:49:41,452 INFO L226 Difference]: Without dead ends: 19281 [2018-10-24 23:49:41,550 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 420 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-10-24 23:49:41,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19281 states. [2018-10-24 23:49:41,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19281 to 18413. [2018-10-24 23:49:41,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18413 states. [2018-10-24 23:49:41,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18413 states to 18413 states and 22110 transitions. [2018-10-24 23:49:41,913 INFO L78 Accepts]: Start accepts. Automaton has 18413 states and 22110 transitions. Word has length 210 [2018-10-24 23:49:41,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:49:41,914 INFO L481 AbstractCegarLoop]: Abstraction has 18413 states and 22110 transitions. [2018-10-24 23:49:41,914 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 23:49:41,915 INFO L276 IsEmpty]: Start isEmpty. Operand 18413 states and 22110 transitions. [2018-10-24 23:49:41,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2018-10-24 23:49:41,927 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:49:41,927 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-24 23:49:41,927 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:49:41,928 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:49:41,928 INFO L82 PathProgramCache]: Analyzing trace with hash 337738264, now seen corresponding path program 1 times [2018-10-24 23:49:41,928 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:49:41,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:49:41,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:49:41,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:49:41,929 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:49:41,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:49:42,203 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 243 trivial. 0 not checked. [2018-10-24 23:49:42,204 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:49:42,204 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-24 23:49:42,204 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:49:42,205 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-24 23:49:42,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-24 23:49:42,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-24 23:49:42,205 INFO L87 Difference]: Start difference. First operand 18413 states and 22110 transitions. Second operand 3 states. [2018-10-24 23:49:49,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:49:49,248 INFO L93 Difference]: Finished difference Result 42990 states and 52580 transitions. [2018-10-24 23:49:49,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-24 23:49:49,251 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 309 [2018-10-24 23:49:49,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:49:49,324 INFO L225 Difference]: With dead ends: 42990 [2018-10-24 23:49:49,324 INFO L226 Difference]: Without dead ends: 24583 [2018-10-24 23:49:49,367 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 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 23:49:49,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24583 states. [2018-10-24 23:49:49,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24583 to 24581. [2018-10-24 23:49:49,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24581 states. [2018-10-24 23:49:49,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24581 states to 24581 states and 29288 transitions. [2018-10-24 23:49:49,773 INFO L78 Accepts]: Start accepts. Automaton has 24581 states and 29288 transitions. Word has length 309 [2018-10-24 23:49:49,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:49:49,774 INFO L481 AbstractCegarLoop]: Abstraction has 24581 states and 29288 transitions. [2018-10-24 23:49:49,774 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-24 23:49:49,774 INFO L276 IsEmpty]: Start isEmpty. Operand 24581 states and 29288 transitions. [2018-10-24 23:49:49,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2018-10-24 23:49:49,791 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:49:49,791 INFO L375 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 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 23:49:49,792 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:49:49,792 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:49:49,792 INFO L82 PathProgramCache]: Analyzing trace with hash 948292860, now seen corresponding path program 1 times [2018-10-24 23:49:49,792 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:49:49,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:49:49,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:49:49,793 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:49:49,794 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:49:49,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:49:50,211 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2018-10-24 23:49:50,211 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 23:49:50,211 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 23:49:50,212 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 23:49:50,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 23:49:50,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 23:49:50,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 23:49:50,213 INFO L87 Difference]: Start difference. First operand 24581 states and 29288 transitions. Second operand 4 states. [2018-10-24 23:50:00,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:50:00,460 INFO L93 Difference]: Finished difference Result 74199 states and 91595 transitions. [2018-10-24 23:50:00,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 23:50:00,461 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 350 [2018-10-24 23:50:00,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:50:00,626 INFO L225 Difference]: With dead ends: 74199 [2018-10-24 23:50:00,626 INFO L226 Difference]: Without dead ends: 49624 [2018-10-24 23:50:00,703 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 23:50:00,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49624 states. [2018-10-24 23:50:01,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49624 to 48313. [2018-10-24 23:50:01,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48313 states. [2018-10-24 23:50:01,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48313 states to 48313 states and 56825 transitions. [2018-10-24 23:50:01,524 INFO L78 Accepts]: Start accepts. Automaton has 48313 states and 56825 transitions. Word has length 350 [2018-10-24 23:50:01,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:50:01,525 INFO L481 AbstractCegarLoop]: Abstraction has 48313 states and 56825 transitions. [2018-10-24 23:50:01,525 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 23:50:01,525 INFO L276 IsEmpty]: Start isEmpty. Operand 48313 states and 56825 transitions. [2018-10-24 23:50:01,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 453 [2018-10-24 23:50:01,574 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:50:01,574 INFO L375 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 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] [2018-10-24 23:50:01,575 INFO L424 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:50:01,575 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:50:01,576 INFO L82 PathProgramCache]: Analyzing trace with hash -445500387, now seen corresponding path program 1 times [2018-10-24 23:50:01,576 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:50:01,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:50:01,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:50:01,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:50:01,577 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:50:01,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:50:02,223 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 230 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-10-24 23:50:02,223 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:50:02,223 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 23:50:02,223 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 453 with the following transitions: [2018-10-24 23:50:02,224 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [810], [812], [815], [823], [831], [839], [847], [855], [863], [871], [879], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1278], [1279], [1282], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1428], [1432], [1436], [1440], [1451], [1455], [1459], [1463], [1467], [1471], [1475], [1479], [1490], [1501], [1505], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1559], [1563], [1567], [1578], [1582], [1593], [1597], [1601], [1612], [1623], [1627], [1631], [1635], [1639], [1643], [1647], [1651], [1655], [1659], [1663], [1667], [1678], [1689], [1693], [1697], [1701], [1705], [1709], [1713], [1717], [1728], [1732], [1736], [1747], [1751], [1755], [1759], [1763], [1767], [1771], [1775], [1779], [1783], [1787], [1791], [1795], [1799], [1803], [1807], [1818], [1822], [1826], [1830], [1834], [1838], [1842], [1846], [1850], [1854], [1858], [1862], [1866], [1870], [1874], [1878], [1882], [1886], [1890], [1894], [1898], [1902], [1906], [1910], [1914], [1918], [1922], [1933], [1937], [1941], [1945], [1949], [1960], [1964], [1968], [1972], [1976], [1980], [1984], [1988], [1992], [1996], [2000], [2004], [2008], [2012], [2016], [2020], [2024], [2028], [2039], [2043], [2047], [2051], [2055], [2066], [2070], [2074], [2078], [2089], [2092], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 23:50:02,233 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 23:50:02,233 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 23:50:03,729 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 23:50:03,730 INFO L272 AbstractInterpreter]: Visited 262 different actions 526 times. Merged at 8 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 26 variables. [2018-10-24 23:50:03,766 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:50:03,766 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 23:50:03,766 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:50:03,767 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 23:50:03,778 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:50:03,778 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 23:50:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:50:03,920 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 23:50:04,126 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 230 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-10-24 23:50:04,126 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 23:50:04,605 INFO L134 CoverageAnalysis]: Checked inductivity of 316 backedges. 230 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-10-24 23:50:04,627 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-24 23:50:04,627 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 8 [2018-10-24 23:50:04,627 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-24 23:50:04,628 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-24 23:50:04,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-24 23:50:04,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2018-10-24 23:50:04,629 INFO L87 Difference]: Start difference. First operand 48313 states and 56825 transitions. Second operand 7 states. [2018-10-24 23:50:17,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:50:17,808 INFO L93 Difference]: Finished difference Result 125034 states and 153834 transitions. [2018-10-24 23:50:17,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-24 23:50:17,808 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 452 [2018-10-24 23:50:17,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:50:18,132 INFO L225 Difference]: With dead ends: 125034 [2018-10-24 23:50:18,132 INFO L226 Difference]: Without dead ends: 76727 [2018-10-24 23:50:18,292 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 917 GetRequests, 905 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2018-10-24 23:50:18,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76727 states. [2018-10-24 23:50:19,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76727 to 73912. [2018-10-24 23:50:19,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73912 states. [2018-10-24 23:50:19,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73912 states to 73912 states and 84620 transitions. [2018-10-24 23:50:19,825 INFO L78 Accepts]: Start accepts. Automaton has 73912 states and 84620 transitions. Word has length 452 [2018-10-24 23:50:19,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:50:19,826 INFO L481 AbstractCegarLoop]: Abstraction has 73912 states and 84620 transitions. [2018-10-24 23:50:19,826 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-24 23:50:19,826 INFO L276 IsEmpty]: Start isEmpty. Operand 73912 states and 84620 transitions. [2018-10-24 23:50:19,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 463 [2018-10-24 23:50:19,895 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:50:19,895 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-24 23:50:19,896 INFO L424 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:50:19,896 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:50:19,896 INFO L82 PathProgramCache]: Analyzing trace with hash 258739091, now seen corresponding path program 1 times [2018-10-24 23:50:19,896 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:50:19,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:50:19,897 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:50:19,897 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:50:19,897 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:50:19,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:50:20,528 WARN L179 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 11 [2018-10-24 23:50:20,901 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-10-24 23:50:21,865 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 60 proven. 247 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-24 23:50:21,865 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:50:21,865 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 23:50:21,865 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 463 with the following transitions: [2018-10-24 23:50:21,866 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [810], [812], [815], [823], [831], [839], [847], [855], [863], [871], [879], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1428], [1432], [1436], [1440], [1451], [1455], [1459], [1463], [1467], [1471], [1475], [1479], [1490], [1501], [1505], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1559], [1563], [1567], [1578], [1582], [1593], [1597], [1601], [1612], [1623], [1627], [1631], [1635], [1639], [1643], [1647], [1651], [1655], [1659], [1663], [1667], [1678], [1689], [1693], [1697], [1701], [1705], [1709], [1713], [1717], [1728], [1732], [1736], [1747], [1751], [1755], [1759], [1763], [1767], [1771], [1775], [1779], [1783], [1787], [1791], [1795], [1799], [1803], [1807], [1818], [1822], [1826], [1830], [1834], [1838], [1842], [1846], [1850], [1854], [1858], [1862], [1866], [1870], [1874], [1878], [1882], [1886], [1890], [1894], [1898], [1902], [1906], [1910], [1914], [1918], [1922], [1933], [1937], [1941], [1945], [1949], [1960], [1964], [1968], [1972], [1976], [1980], [1984], [1988], [1992], [1996], [2000], [2004], [2008], [2012], [2016], [2020], [2024], [2028], [2039], [2043], [2047], [2051], [2055], [2066], [2070], [2074], [2078], [2089], [2092], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 23:50:21,873 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 23:50:21,873 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 23:50:24,582 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-24 23:50:24,583 INFO L272 AbstractInterpreter]: Visited 262 different actions 772 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-24 23:50:24,620 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:50:24,620 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-24 23:50:24,621 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:50:24,621 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 23:50:24,631 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:50:24,631 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 23:50:24,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:50:24,777 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 23:50:25,132 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 293 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-10-24 23:50:25,132 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-24 23:50:25,652 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 132 proven. 109 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-24 23:50:25,672 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-24 23:50:25,673 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5] total 14 [2018-10-24 23:50:25,673 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-24 23:50:25,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-24 23:50:25,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-24 23:50:25,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2018-10-24 23:50:25,675 INFO L87 Difference]: Start difference. First operand 73912 states and 84620 transitions. Second operand 13 states. [2018-10-24 23:50:47,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 23:50:47,997 INFO L93 Difference]: Finished difference Result 170790 states and 195793 transitions. [2018-10-24 23:50:47,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2018-10-24 23:50:47,997 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 462 [2018-10-24 23:50:47,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 23:50:48,168 INFO L225 Difference]: With dead ends: 170790 [2018-10-24 23:50:48,169 INFO L226 Difference]: Without dead ends: 55337 [2018-10-24 23:50:48,376 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1014 GetRequests, 959 SyntacticMatches, 3 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 769 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=537, Invalid=2325, Unknown=0, NotChecked=0, Total=2862 [2018-10-24 23:50:48,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55337 states. [2018-10-24 23:50:49,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55337 to 51350. [2018-10-24 23:50:49,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51350 states. [2018-10-24 23:50:49,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51350 states to 51350 states and 57678 transitions. [2018-10-24 23:50:49,312 INFO L78 Accepts]: Start accepts. Automaton has 51350 states and 57678 transitions. Word has length 462 [2018-10-24 23:50:49,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 23:50:49,313 INFO L481 AbstractCegarLoop]: Abstraction has 51350 states and 57678 transitions. [2018-10-24 23:50:49,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-24 23:50:49,313 INFO L276 IsEmpty]: Start isEmpty. Operand 51350 states and 57678 transitions. [2018-10-24 23:50:49,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2018-10-24 23:50:49,362 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 23:50:49,362 INFO L375 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:50:49,363 INFO L424 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 23:50:49,363 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 23:50:49,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1262653227, now seen corresponding path program 1 times [2018-10-24 23:50:49,363 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 23:50:49,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:50:49,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:50:49,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 23:50:49,364 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 23:50:49,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:50:49,867 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-24 23:50:50,276 WARN L179 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-10-24 23:50:50,569 WARN L179 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-10-24 23:50:50,845 WARN L179 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 10 [2018-10-24 23:50:51,129 WARN L179 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-10-24 23:50:51,443 WARN L179 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-24 23:50:52,292 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 60 proven. 316 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-24 23:50:52,293 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:50:52,293 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 23:50:52,293 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 519 with the following transitions: [2018-10-24 23:50:52,294 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [810], [812], [815], [823], [831], [839], [847], [855], [863], [871], [879], [887], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1224], [1228], [1232], [1236], [1240], [1244], [1255], [1259], [1263], [1267], [1271], [1275], [1279], [1282], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1318], [1322], [1326], [1330], [1334], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1428], [1432], [1436], [1440], [1451], [1455], [1459], [1463], [1467], [1471], [1475], [1479], [1490], [1501], [1505], [1516], [1520], [1524], [1528], [1532], [1536], [1540], [1544], [1548], [1559], [1563], [1567], [1578], [1582], [1593], [1597], [1601], [1612], [1623], [1626], [1627], [1631], [1635], [1639], [1643], [1647], [1651], [1655], [1659], [1663], [1667], [1678], [1689], [1693], [1697], [1701], [1705], [1709], [1713], [1717], [1728], [1732], [1736], [1747], [1751], [1755], [1759], [1763], [1767], [1771], [1775], [1779], [1783], [1787], [1791], [1795], [1799], [1803], [1807], [1818], [1822], [1826], [1830], [1834], [1838], [1842], [1846], [1850], [1854], [1858], [1862], [1866], [1870], [1874], [1878], [1882], [1886], [1890], [1894], [1898], [1902], [1906], [1910], [1914], [1918], [1922], [1933], [1937], [1941], [1945], [1949], [1960], [1964], [1968], [1972], [1976], [1980], [1984], [1988], [1992], [1996], [2000], [2004], [2008], [2012], [2016], [2020], [2024], [2028], [2039], [2043], [2047], [2051], [2055], [2066], [2070], [2074], [2078], [2089], [2092], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 23:50:52,302 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-24 23:50:52,302 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-10-24 23:50:53,465 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-10-24 23:50:53,466 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-10-24 23:50:53,467 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-24 23:50:53,467 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 23:50:53,467 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 23:50:53,484 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 23:50:53,484 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-24 23:50:53,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 23:50:53,646 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-24 23:50:53,654 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-24 23:50:53,857 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-24 23:50:53,857 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 23:50:53,861 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 23:50:53,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:50:53 BoogieIcfgContainer [2018-10-24 23:50:53,861 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 23:50:53,862 INFO L168 Benchmark]: Toolchain (without parser) took 239806.33 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 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 606.2 MB. Max. memory is 7.1 GB. [2018-10-24 23:50:53,863 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 23:50:53,864 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1546.42 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 23:50:53,864 INFO L168 Benchmark]: Boogie Procedure Inliner took 433.17 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 789.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -942.9 MB). Peak memory consumption was 56.2 MB. Max. memory is 7.1 GB. [2018-10-24 23:50:53,865 INFO L168 Benchmark]: Boogie Preprocessor took 257.92 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: 41.5 MB). Peak memory consumption was 41.5 MB. Max. memory is 7.1 GB. [2018-10-24 23:50:53,866 INFO L168 Benchmark]: RCFGBuilder took 11728.93 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: 458.0 MB). Peak memory consumption was 458.0 MB. Max. memory is 7.1 GB. [2018-10-24 23:50:53,866 INFO L168 Benchmark]: TraceAbstraction took 225834.46 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 1.7 GB in the beginning and 3.3 GB in the end (delta: -1.6 GB). Peak memory consumption was 122.7 MB. Max. memory is 7.1 GB. [2018-10-24 23:50:53,871 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1546.42 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 433.17 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 789.6 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -942.9 MB). Peak memory consumption was 56.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 257.92 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: 41.5 MB). Peak memory consumption was 41.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11728.93 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: 458.0 MB). Peak memory consumption was 458.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 225834.46 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 1.7 GB in the beginning and 3.3 GB in the end (delta: -1.6 GB). Peak memory consumption was 122.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 62]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 62). Cancelled while BasicCegarLoop was analyzing trace of length 519 with TraceHistMax 4,while TraceCheckSpWp was constructing forward predicates,while XnfDer was eliminating 1 quantified variables from 1 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 225.7s OverallTime, 11 OverallIterations, 4 TraceHistogramMax, 141.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4755 SDtfs, 19983 SDslu, 2939 SDs, 0 SdLazy, 30082 SolverSat, 9160 SolverUnsat, 18 SolverUnknown, 0 SolverNotchecked, 125.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2611 GetRequests, 2496 SyntacticMatches, 13 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 825 ImplicationChecksByTransitivity, 61.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73912occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 9.0s AbstIntTime, 5 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 5.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 9176 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 63.8s InterpolantComputationTime, 3593 NumberOfCodeBlocks, 3593 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 4799 ConstructedInterpolants, 99 QuantifiedInterpolants, 6808203 SizeOfPredicates, 8 NumberOfNonLiveVariables, 2036 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 18 InterpolantComputations, 9 PerfectInterpolantSequences, 2398/2874 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown