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_label58_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-25 02:03:00,113 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-25 02:03:00,115 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-25 02:03:00,132 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-25 02:03:00,133 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-25 02:03:00,134 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-25 02:03:00,136 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-25 02:03:00,138 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-25 02:03:00,142 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-25 02:03:00,143 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-25 02:03:00,152 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-25 02:03:00,152 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-25 02:03:00,154 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-25 02:03:00,155 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-25 02:03:00,161 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-25 02:03:00,162 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-25 02:03:00,163 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-25 02:03:00,166 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-25 02:03:00,169 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-25 02:03:00,173 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-25 02:03:00,174 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-25 02:03:00,175 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-25 02:03:00,178 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-25 02:03:00,178 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-25 02:03:00,178 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-25 02:03:00,179 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-25 02:03:00,180 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-25 02:03:00,181 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-25 02:03:00,182 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-25 02:03:00,184 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-25 02:03:00,185 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-25 02:03:00,186 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-25 02:03:00,186 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-25 02:03:00,186 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-25 02:03:00,187 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-25 02:03:00,189 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-25 02:03:00,190 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-25 02:03:00,217 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-25 02:03:00,218 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-25 02:03:00,219 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-25 02:03:00,219 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-25 02:03:00,219 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-25 02:03:00,220 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-25 02:03:00,220 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-25 02:03:00,220 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-25 02:03:00,220 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-25 02:03:00,220 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-25 02:03:00,220 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-25 02:03:00,221 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-25 02:03:00,221 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-25 02:03:00,221 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-25 02:03:00,222 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-25 02:03:00,222 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-25 02:03:00,223 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-25 02:03:00,223 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-25 02:03:00,223 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-25 02:03:00,223 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-25 02:03:00,223 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-25 02:03:00,224 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-25 02:03:00,224 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-25 02:03:00,224 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-25 02:03:00,224 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-25 02:03:00,225 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-25 02:03:00,226 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 02:03:00,227 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-25 02:03:00,227 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-25 02:03:00,227 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-25 02:03:00,227 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-25 02:03:00,227 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-25 02:03:00,228 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-25 02:03:00,228 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-25 02:03:00,228 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-25 02:03:00,228 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-25 02:03:00,305 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-25 02:03:00,326 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-25 02:03:00,331 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-25 02:03:00,333 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-25 02:03:00,333 INFO L276 PluginConnector]: CDTParser initialized [2018-10-25 02:03:00,334 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label58_true-unreach-call.c [2018-10-25 02:03:00,412 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/52389a7dd/75697ce72b704dc8adb3d3d73691a74b/FLAG07370f3ff [2018-10-25 02:03:01,153 INFO L298 CDTParser]: Found 1 translation units. [2018-10-25 02:03:01,154 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label58_true-unreach-call.c [2018-10-25 02:03:01,184 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/52389a7dd/75697ce72b704dc8adb3d3d73691a74b/FLAG07370f3ff [2018-10-25 02:03:01,202 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/52389a7dd/75697ce72b704dc8adb3d3d73691a74b [2018-10-25 02:03:01,214 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-25 02:03:01,216 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-25 02:03:01,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-25 02:03:01,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-25 02:03:01,221 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-25 02:03:01,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 02:03:01" (1/1) ... [2018-10-25 02:03:01,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36832d81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:03:01, skipping insertion in model container [2018-10-25 02:03:01,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 02:03:01" (1/1) ... [2018-10-25 02:03:01,237 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-25 02:03:01,355 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-25 02:03:02,403 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 02:03:02,407 INFO L189 MainTranslator]: Completed pre-run [2018-10-25 02:03:02,807 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 02:03:02,830 INFO L193 MainTranslator]: Completed translation [2018-10-25 02:03:02,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:03:02 WrapperNode [2018-10-25 02:03:02,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-25 02:03:02,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-25 02:03:02,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-25 02:03:02,832 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-25 02:03:02,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:03:02" (1/1) ... [2018-10-25 02:03:02,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:03:02" (1/1) ... [2018-10-25 02:03:03,241 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-25 02:03:03,241 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-25 02:03:03,241 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-25 02:03:03,242 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-25 02:03:03,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:03:02" (1/1) ... [2018-10-25 02:03:03,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:03:02" (1/1) ... [2018-10-25 02:03:03,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:03:02" (1/1) ... [2018-10-25 02:03:03,291 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:03:02" (1/1) ... [2018-10-25 02:03:03,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:03:02" (1/1) ... [2018-10-25 02:03:03,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:03:02" (1/1) ... [2018-10-25 02:03:03,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:03:02" (1/1) ... [2018-10-25 02:03:03,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-25 02:03:03,481 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-25 02:03:03,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-25 02:03:03,481 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-25 02:03:03,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:03:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 02:03:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-25 02:03:03,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-25 02:03:03,546 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-25 02:03:03,546 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-25 02:03:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-25 02:03:03,547 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-25 02:03:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-25 02:03:03,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-25 02:03:03,547 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-25 02:03:03,547 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-25 02:03:17,153 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-25 02:03:17,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 02:03:17 BoogieIcfgContainer [2018-10-25 02:03:17,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-25 02:03:17,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-25 02:03:17,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-25 02:03:17,160 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-25 02:03:17,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 02:03:01" (1/3) ... [2018-10-25 02:03:17,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ce13da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 02:03:17, skipping insertion in model container [2018-10-25 02:03:17,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 02:03:02" (2/3) ... [2018-10-25 02:03:17,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15ce13da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 02:03:17, skipping insertion in model container [2018-10-25 02:03:17,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 02:03:17" (3/3) ... [2018-10-25 02:03:17,164 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label58_true-unreach-call.c [2018-10-25 02:03:17,174 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-25 02:03:17,183 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-25 02:03:17,202 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-25 02:03:17,246 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-25 02:03:17,246 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-25 02:03:17,246 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-25 02:03:17,246 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-25 02:03:17,247 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-25 02:03:17,247 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-25 02:03:17,247 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-25 02:03:17,247 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-25 02:03:17,288 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-25 02:03:17,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-10-25 02:03:17,302 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:03:17,303 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 02:03:17,306 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:03:17,313 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:03:17,313 INFO L82 PathProgramCache]: Analyzing trace with hash -567488676, now seen corresponding path program 1 times [2018-10-25 02:03:17,315 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:03:17,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:03:17,365 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:03:17,365 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:03:17,366 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:03:17,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:03:17,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:03:17,841 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:03:17,841 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-25 02:03:17,841 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:03:17,848 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-25 02:03:17,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-25 02:03:17,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 02:03:17,869 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-25 02:03:28,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:03:28,594 INFO L93 Difference]: Finished difference Result 2162 states and 4007 transitions. [2018-10-25 02:03:28,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-25 02:03:28,596 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2018-10-25 02:03:28,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:03:28,635 INFO L225 Difference]: With dead ends: 2162 [2018-10-25 02:03:28,635 INFO L226 Difference]: Without dead ends: 1552 [2018-10-25 02:03:28,648 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 02:03:28,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2018-10-25 02:03:28,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1525. [2018-10-25 02:03:28,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1525 states. [2018-10-25 02:03:28,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 2696 transitions. [2018-10-25 02:03:28,813 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 2696 transitions. Word has length 52 [2018-10-25 02:03:28,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:03:28,814 INFO L481 AbstractCegarLoop]: Abstraction has 1525 states and 2696 transitions. [2018-10-25 02:03:28,814 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-25 02:03:28,814 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 2696 transitions. [2018-10-25 02:03:28,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-10-25 02:03:28,824 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:03:28,825 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 02:03:28,825 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:03:28,825 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:03:28,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1938169354, now seen corresponding path program 1 times [2018-10-25 02:03:28,826 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:03:28,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:03:28,827 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:03:28,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:03:28,827 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:03:28,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:03:29,104 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:03:29,104 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:03:29,104 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 02:03:29,104 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:03:29,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 02:03:29,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 02:03:29,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-25 02:03:29,107 INFO L87 Difference]: Start difference. First operand 1525 states and 2696 transitions. Second operand 6 states. [2018-10-25 02:03:48,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:03:48,159 INFO L93 Difference]: Finished difference Result 5786 states and 10682 transitions. [2018-10-25 02:03:48,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-25 02:03:48,160 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2018-10-25 02:03:48,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:03:48,202 INFO L225 Difference]: With dead ends: 5786 [2018-10-25 02:03:48,202 INFO L226 Difference]: Without dead ends: 4267 [2018-10-25 02:03:48,223 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-25 02:03:48,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4267 states. [2018-10-25 02:03:48,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4267 to 4243. [2018-10-25 02:03:48,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4243 states. [2018-10-25 02:03:48,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4243 states to 4243 states and 6361 transitions. [2018-10-25 02:03:48,394 INFO L78 Accepts]: Start accepts. Automaton has 4243 states and 6361 transitions. Word has length 131 [2018-10-25 02:03:48,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:03:48,395 INFO L481 AbstractCegarLoop]: Abstraction has 4243 states and 6361 transitions. [2018-10-25 02:03:48,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 02:03:48,395 INFO L276 IsEmpty]: Start isEmpty. Operand 4243 states and 6361 transitions. [2018-10-25 02:03:48,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-10-25 02:03:48,401 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:03:48,401 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 02:03:48,402 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:03:48,402 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:03:48,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1881840966, now seen corresponding path program 1 times [2018-10-25 02:03:48,402 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:03:48,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:03:48,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:03:48,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:03:48,404 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:03:48,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:03:48,667 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:03:48,668 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:03:48,668 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 02:03:48,668 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:03:48,670 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 02:03:48,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 02:03:48,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 02:03:48,671 INFO L87 Difference]: Start difference. First operand 4243 states and 6361 transitions. Second operand 6 states. [2018-10-25 02:03:58,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:03:58,184 INFO L93 Difference]: Finished difference Result 12712 states and 20720 transitions. [2018-10-25 02:03:58,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-25 02:03:58,186 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2018-10-25 02:03:58,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:03:58,251 INFO L225 Difference]: With dead ends: 12712 [2018-10-25 02:03:58,251 INFO L226 Difference]: Without dead ends: 8475 [2018-10-25 02:03:58,279 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 [2018-10-25 02:03:58,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8475 states. [2018-10-25 02:03:58,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8475 to 8390. [2018-10-25 02:03:58,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8390 states. [2018-10-25 02:03:58,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8390 states to 8390 states and 12594 transitions. [2018-10-25 02:03:58,590 INFO L78 Accepts]: Start accepts. Automaton has 8390 states and 12594 transitions. Word has length 132 [2018-10-25 02:03:58,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:03:58,591 INFO L481 AbstractCegarLoop]: Abstraction has 8390 states and 12594 transitions. [2018-10-25 02:03:58,591 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 02:03:58,591 INFO L276 IsEmpty]: Start isEmpty. Operand 8390 states and 12594 transitions. [2018-10-25 02:03:58,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2018-10-25 02:03:58,601 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:03:58,602 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2018-10-25 02:03:58,603 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:03:58,603 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:03:58,603 INFO L82 PathProgramCache]: Analyzing trace with hash -502912620, now seen corresponding path program 1 times [2018-10-25 02:03:58,603 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:03:58,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:03:58,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:03:58,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:03:58,605 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:03:58,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:03:59,189 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 91 proven. 5 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-10-25 02:03:59,189 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 02:03:59,189 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 02:03:59,190 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 207 with the following transitions: [2018-10-25 02:03:59,192 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1026], [1028], [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], [1239], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-25 02:03:59,241 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 02:03:59,241 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 02:04:01,161 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 02:04:01,164 INFO L272 AbstractInterpreter]: Visited 88 different actions 250 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-25 02:04:01,215 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:04:01,217 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 02:04:01,217 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 02:04:01,217 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 02:04:01,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:04:01,230 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 02:04:01,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:04:01,340 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 02:04:01,849 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 163 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:04:01,850 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 02:04:02,299 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 163 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:04:02,331 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-25 02:04:02,332 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-10-25 02:04:02,332 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-25 02:04:02,333 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-25 02:04:02,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-25 02:04:02,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-10-25 02:04:02,334 INFO L87 Difference]: Start difference. First operand 8390 states and 12594 transitions. Second operand 9 states. [2018-10-25 02:04:15,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:04:15,932 INFO L93 Difference]: Finished difference Result 21313 states and 32727 transitions. [2018-10-25 02:04:15,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-25 02:04:15,933 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 206 [2018-10-25 02:04:15,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:04:16,042 INFO L225 Difference]: With dead ends: 21313 [2018-10-25 02:04:16,043 INFO L226 Difference]: Without dead ends: 12894 [2018-10-25 02:04:16,110 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 410 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2018-10-25 02:04:16,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12894 states. [2018-10-25 02:04:16,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12894 to 12874. [2018-10-25 02:04:16,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12874 states. [2018-10-25 02:04:16,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12874 states to 12874 states and 16970 transitions. [2018-10-25 02:04:16,656 INFO L78 Accepts]: Start accepts. Automaton has 12874 states and 16970 transitions. Word has length 206 [2018-10-25 02:04:16,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:04:16,656 INFO L481 AbstractCegarLoop]: Abstraction has 12874 states and 16970 transitions. [2018-10-25 02:04:16,656 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-25 02:04:16,657 INFO L276 IsEmpty]: Start isEmpty. Operand 12874 states and 16970 transitions. [2018-10-25 02:04:16,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2018-10-25 02:04:16,663 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:04:16,663 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-25 02:04:16,664 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:04:16,664 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:04:16,664 INFO L82 PathProgramCache]: Analyzing trace with hash -1533263748, now seen corresponding path program 1 times [2018-10-25 02:04:16,664 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:04:16,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:04:16,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:04:16,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:04:16,666 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:04:16,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:04:17,039 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-10-25 02:04:17,039 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:04:17,040 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-25 02:04:17,040 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:04:17,040 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-25 02:04:17,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-25 02:04:17,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 02:04:17,041 INFO L87 Difference]: Start difference. First operand 12874 states and 16970 transitions. Second operand 4 states. [2018-10-25 02:04:24,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:04:24,334 INFO L93 Difference]: Finished difference Result 33766 states and 47468 transitions. [2018-10-25 02:04:24,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-25 02:04:24,335 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 219 [2018-10-25 02:04:24,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:04:24,403 INFO L225 Difference]: With dead ends: 33766 [2018-10-25 02:04:24,404 INFO L226 Difference]: Without dead ends: 16840 [2018-10-25 02:04:24,504 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 [2018-10-25 02:04:24,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16840 states. [2018-10-25 02:04:24,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16840 to 14136. [2018-10-25 02:04:24,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14136 states. [2018-10-25 02:04:24,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14136 states to 14136 states and 17392 transitions. [2018-10-25 02:04:24,842 INFO L78 Accepts]: Start accepts. Automaton has 14136 states and 17392 transitions. Word has length 219 [2018-10-25 02:04:24,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:04:24,843 INFO L481 AbstractCegarLoop]: Abstraction has 14136 states and 17392 transitions. [2018-10-25 02:04:24,843 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-25 02:04:24,843 INFO L276 IsEmpty]: Start isEmpty. Operand 14136 states and 17392 transitions. [2018-10-25 02:04:24,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2018-10-25 02:04:24,856 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:04:24,856 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-25 02:04:24,857 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:04:24,857 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:04:24,857 INFO L82 PathProgramCache]: Analyzing trace with hash -562860899, now seen corresponding path program 1 times [2018-10-25 02:04:24,857 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:04:24,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:04:24,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:04:24,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:04:24,860 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:04:24,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:04:25,582 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 118 proven. 53 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-25 02:04:25,582 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 02:04:25,582 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 02:04:25,583 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 332 with the following transitions: [2018-10-25 02:04:25,584 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1026], [1028], [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], [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], [1806], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-25 02:04:25,594 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 02:04:25,594 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 02:04:26,333 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 02:04:26,334 INFO L272 AbstractInterpreter]: Visited 200 different actions 399 times. Merged at 7 different actions 11 times. Never widened. Found 2 fixpoints after 2 different actions. Largest state had 26 variables. [2018-10-25 02:04:26,373 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:04:26,373 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 02:04:26,373 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 02:04:26,374 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 02:04:26,387 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:04:26,387 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 02:04:26,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:04:26,523 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 02:04:26,767 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-10-25 02:04:26,767 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 02:04:27,108 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-10-25 02:04:27,134 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-10-25 02:04:27,135 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-10-25 02:04:27,135 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:04:27,136 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 02:04:27,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 02:04:27,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-25 02:04:27,136 INFO L87 Difference]: Start difference. First operand 14136 states and 17392 transitions. Second operand 3 states. [2018-10-25 02:04:32,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:04:32,401 INFO L93 Difference]: Finished difference Result 28266 states and 34778 transitions. [2018-10-25 02:04:32,401 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 02:04:32,401 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 331 [2018-10-25 02:04:32,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:04:32,447 INFO L225 Difference]: With dead ends: 28266 [2018-10-25 02:04:32,447 INFO L226 Difference]: Without dead ends: 14136 [2018-10-25 02:04:32,476 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 673 GetRequests, 662 SyntacticMatches, 5 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-10-25 02:04:32,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14136 states. [2018-10-25 02:04:32,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14136 to 14136. [2018-10-25 02:04:32,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14136 states. [2018-10-25 02:04:32,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14136 states to 14136 states and 17060 transitions. [2018-10-25 02:04:32,742 INFO L78 Accepts]: Start accepts. Automaton has 14136 states and 17060 transitions. Word has length 331 [2018-10-25 02:04:32,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:04:32,743 INFO L481 AbstractCegarLoop]: Abstraction has 14136 states and 17060 transitions. [2018-10-25 02:04:32,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 02:04:32,743 INFO L276 IsEmpty]: Start isEmpty. Operand 14136 states and 17060 transitions. [2018-10-25 02:04:32,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2018-10-25 02:04:32,753 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:04:32,754 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-25 02:04:32,754 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:04:32,754 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:04:32,755 INFO L82 PathProgramCache]: Analyzing trace with hash 897107937, now seen corresponding path program 1 times [2018-10-25 02:04:32,755 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:04:32,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:04:32,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:04:32,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:04:32,756 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:04:32,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:04:33,651 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 311 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-10-25 02:04:33,651 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 02:04:33,651 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 02:04:33,652 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 357 with the following transitions: [2018-10-25 02:04:33,652 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1026], [1028], [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], [1474], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-25 02:04:33,661 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 02:04:33,662 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 02:04:34,199 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 02:04:34,199 INFO L272 AbstractInterpreter]: Visited 139 different actions 280 times. Merged at 8 different actions 14 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 26 variables. [2018-10-25 02:04:34,236 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:04:34,236 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 02:04:34,236 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 02:04:34,236 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 [2018-10-25 02:04:34,248 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:04:34,248 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 02:04:34,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:04:34,358 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 02:04:34,506 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 311 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-10-25 02:04:34,506 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 02:04:34,753 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-10-25 02:04:35,060 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 311 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-10-25 02:04:35,081 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-25 02:04:35,081 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2018-10-25 02:04:35,081 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-25 02:04:35,082 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-25 02:04:35,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-25 02:04:35,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-10-25 02:04:35,083 INFO L87 Difference]: Start difference. First operand 14136 states and 17060 transitions. Second operand 7 states. [2018-10-25 02:04:49,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:04:49,748 INFO L93 Difference]: Finished difference Result 49344 states and 63413 transitions. [2018-10-25 02:04:49,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-10-25 02:04:49,749 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 356 [2018-10-25 02:04:49,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:04:49,853 INFO L225 Difference]: With dead ends: 49344 [2018-10-25 02:04:49,853 INFO L226 Difference]: Without dead ends: 32533 [2018-10-25 02:04:49,898 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 729 GetRequests, 715 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2018-10-25 02:04:49,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32533 states. [2018-10-25 02:04:50,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32533 to 29322. [2018-10-25 02:04:50,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29322 states. [2018-10-25 02:04:50,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29322 states to 29322 states and 35344 transitions. [2018-10-25 02:04:50,490 INFO L78 Accepts]: Start accepts. Automaton has 29322 states and 35344 transitions. Word has length 356 [2018-10-25 02:04:50,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:04:50,491 INFO L481 AbstractCegarLoop]: Abstraction has 29322 states and 35344 transitions. [2018-10-25 02:04:50,491 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-25 02:04:50,491 INFO L276 IsEmpty]: Start isEmpty. Operand 29322 states and 35344 transitions. [2018-10-25 02:04:50,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2018-10-25 02:04:50,510 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:04:50,511 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 02:04:50,511 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:04:50,511 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:04:50,512 INFO L82 PathProgramCache]: Analyzing trace with hash -337293599, now seen corresponding path program 1 times [2018-10-25 02:04:50,512 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:04:50,512 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:04:50,513 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:04:50,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:04:50,514 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:04:50,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:04:51,005 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2018-10-25 02:04:51,005 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 02:04:51,006 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-25 02:04:51,006 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:04:51,006 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-25 02:04:51,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-25 02:04:51,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 02:04:51,007 INFO L87 Difference]: Start difference. First operand 29322 states and 35344 transitions. Second operand 4 states. [2018-10-25 02:04:59,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:04:59,958 INFO L93 Difference]: Finished difference Result 78289 states and 95278 transitions. [2018-10-25 02:04:59,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-25 02:04:59,959 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 379 [2018-10-25 02:04:59,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:05:00,084 INFO L225 Difference]: With dead ends: 78289 [2018-10-25 02:05:00,084 INFO L226 Difference]: Without dead ends: 40912 [2018-10-25 02:05:00,174 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 [2018-10-25 02:05:00,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40912 states. [2018-10-25 02:05:01,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40912 to 37405. [2018-10-25 02:05:01,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37405 states. [2018-10-25 02:05:01,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37405 states to 37405 states and 44362 transitions. [2018-10-25 02:05:01,236 INFO L78 Accepts]: Start accepts. Automaton has 37405 states and 44362 transitions. Word has length 379 [2018-10-25 02:05:01,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:05:01,237 INFO L481 AbstractCegarLoop]: Abstraction has 37405 states and 44362 transitions. [2018-10-25 02:05:01,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-25 02:05:01,237 INFO L276 IsEmpty]: Start isEmpty. Operand 37405 states and 44362 transitions. [2018-10-25 02:05:01,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2018-10-25 02:05:01,281 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:05:01,282 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 02:05:01,282 INFO L424 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:05:01,283 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:05:01,283 INFO L82 PathProgramCache]: Analyzing trace with hash 464321774, now seen corresponding path program 1 times [2018-10-25 02:05:01,283 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:05:01,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:05:01,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:05:01,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:05:01,284 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:05:01,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:05:02,935 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 22 proven. 134 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2018-10-25 02:05:02,935 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 02:05:02,935 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 02:05:02,935 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 546 with the following transitions: [2018-10-25 02:05:02,936 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [37], [41], [45], [56], [60], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [115], [119], [123], [127], [138], [142], [146], [150], [153], [710], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1026], [1028], [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], [1243], [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], [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], [2093], [2104], [2108], [2119], [2123], [2127], [2131], [2135], [2139], [2143], [2147], [2151], [2155], [2159], [2163], [2167], [2171], [2175], [2179], [2183], [2187], [2191], [2202], [2206], [2210], [2214], [2218], [2229], [2233], [2237], [2241], [2252], [2256], [2260], [2264], [2268], [2272], [2276], [2278], [2279], [2283], [2287], [2293], [2297], [2299], [2304], [2305], [2306], [2307], [2308], [2310], [2311] [2018-10-25 02:05:02,946 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 02:05:02,946 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 02:05:03,983 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 02:05:03,984 INFO L272 AbstractInterpreter]: Visited 335 different actions 668 times. Merged at 8 different actions 13 times. Never widened. Found 3 fixpoints after 3 different actions. Largest state had 26 variables. [2018-10-25 02:05:04,024 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:05:04,024 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 02:05:04,025 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 02:05:04,025 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) [2018-10-25 02:05:04,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 02:05:04,037 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 02:05:04,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:05:04,223 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 02:05:10,806 WARN L179 SmtUtils]: Spent 6.27 s on a formula simplification. DAG size of input: 48 DAG size of output: 21 [2018-10-25 02:05:12,293 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 176 proven. 134 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2018-10-25 02:05:12,293 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 02:05:14,972 WARN L179 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 26 DAG size of output: 15 [2018-10-25 02:05:15,353 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 9 [2018-10-25 02:05:16,793 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 92 proven. 291 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 02:05:16,814 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-25 02:05:16,815 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 13] total 30 [2018-10-25 02:05:16,815 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-25 02:05:16,816 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-25 02:05:16,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-25 02:05:16,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=655, Unknown=0, NotChecked=0, Total=870 [2018-10-25 02:05:16,817 INFO L87 Difference]: Start difference. First operand 37405 states and 44362 transitions. Second operand 20 states. [2018-10-25 02:05:24,061 WARN L179 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-10-25 02:05:58,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:05:58,052 INFO L93 Difference]: Finished difference Result 130904 states and 165392 transitions. [2018-10-25 02:05:58,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2018-10-25 02:05:58,053 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 545 [2018-10-25 02:05:58,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:05:58,440 INFO L225 Difference]: With dead ends: 130904 [2018-10-25 02:05:58,440 INFO L226 Difference]: Without dead ends: 93015 [2018-10-25 02:05:58,523 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1149 GetRequests, 1075 SyntacticMatches, 3 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1592 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=1263, Invalid=3993, Unknown=0, NotChecked=0, Total=5256 [2018-10-25 02:05:58,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93015 states. [2018-10-25 02:06:00,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93015 to 84116. [2018-10-25 02:06:00,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84116 states. [2018-10-25 02:06:00,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84116 states to 84116 states and 107341 transitions. [2018-10-25 02:06:00,491 INFO L78 Accepts]: Start accepts. Automaton has 84116 states and 107341 transitions. Word has length 545 [2018-10-25 02:06:00,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:06:00,492 INFO L481 AbstractCegarLoop]: Abstraction has 84116 states and 107341 transitions. [2018-10-25 02:06:00,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-10-25 02:06:00,492 INFO L276 IsEmpty]: Start isEmpty. Operand 84116 states and 107341 transitions. [2018-10-25 02:06:00,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 621 [2018-10-25 02:06:00,551 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:06:00,551 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 02:06:00,552 INFO L424 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:06:00,552 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:06:00,552 INFO L82 PathProgramCache]: Analyzing trace with hash -861656546, now seen corresponding path program 1 times [2018-10-25 02:06:00,552 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:06:00,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:06:00,553 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:06:00,553 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:06:00,554 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:06:00,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:06:02,222 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 299 proven. 16 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-10-25 02:06:02,222 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 02:06:02,222 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 02:06:02,222 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 621 with the following transitions: [2018-10-25 02:06:02,223 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [37], [41], [45], [56], [60], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [115], [119], [123], [127], [138], [142], [146], [150], [154], [158], [169], [173], [177], [181], [185], [189], [193], [204], [208], [212], [216], [227], [231], [235], [239], [250], [254], [258], [262], [266], [270], [274], [278], [282], [286], [297], [301], [305], [309], [313], [317], [321], [325], [336], [340], [344], [348], [352], [363], [367], [371], [375], [379], [383], [387], [391], [395], [399], [403], [407], [411], [415], [426], [430], [434], [445], [449], [453], [464], [475], [479], [483], [487], [491], [495], [499], [503], [507], [511], [515], [519], [530], [534], [537], [710], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1026], [1028], [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], [1243], [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], [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], [2093], [2104], [2108], [2119], [2123], [2127], [2131], [2135], [2139], [2143], [2147], [2151], [2155], [2159], [2163], [2167], [2171], [2175], [2179], [2183], [2187], [2191], [2202], [2206], [2210], [2214], [2218], [2229], [2233], [2237], [2241], [2252], [2256], [2260], [2264], [2268], [2272], [2276], [2278], [2279], [2283], [2287], [2293], [2297], [2299], [2304], [2305], [2306], [2307], [2308], [2310], [2311] [2018-10-25 02:06:02,232 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 02:06:02,232 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 02:06:04,422 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 02:06:04,422 INFO L272 AbstractInterpreter]: Visited 410 different actions 818 times. Merged at 8 different actions 13 times. Never widened. Found 3 fixpoints after 3 different actions. Largest state had 26 variables. [2018-10-25 02:06:04,459 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:06:04,459 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 02:06:04,459 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 02:06:04,460 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 [2018-10-25 02:06:04,470 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:06:04,471 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 02:06:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:06:04,674 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 02:06:04,874 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 296 proven. 2 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-10-25 02:06:04,875 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 02:06:05,763 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 296 proven. 2 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-10-25 02:06:05,785 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-25 02:06:05,786 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-10-25 02:06:05,786 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-25 02:06:05,787 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-25 02:06:05,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-25 02:06:05,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-10-25 02:06:05,788 INFO L87 Difference]: Start difference. First operand 84116 states and 107341 transitions. Second operand 9 states. [2018-10-25 02:06:12,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:06:12,569 INFO L93 Difference]: Finished difference Result 166493 states and 212761 transitions. [2018-10-25 02:06:12,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-25 02:06:12,570 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 620 [2018-10-25 02:06:12,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:06:12,909 INFO L225 Difference]: With dead ends: 166493 [2018-10-25 02:06:12,909 INFO L226 Difference]: Without dead ends: 84137 [2018-10-25 02:06:13,070 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1263 GetRequests, 1246 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2018-10-25 02:06:13,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84137 states. [2018-10-25 02:06:15,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84137 to 84131. [2018-10-25 02:06:15,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84131 states. [2018-10-25 02:06:15,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84131 states to 84131 states and 107254 transitions. [2018-10-25 02:06:15,627 INFO L78 Accepts]: Start accepts. Automaton has 84131 states and 107254 transitions. Word has length 620 [2018-10-25 02:06:15,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:06:15,629 INFO L481 AbstractCegarLoop]: Abstraction has 84131 states and 107254 transitions. [2018-10-25 02:06:15,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-25 02:06:15,629 INFO L276 IsEmpty]: Start isEmpty. Operand 84131 states and 107254 transitions. [2018-10-25 02:06:15,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 693 [2018-10-25 02:06:15,684 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:06:15,685 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 02:06:15,685 INFO L424 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:06:15,685 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:06:15,686 INFO L82 PathProgramCache]: Analyzing trace with hash 852935569, now seen corresponding path program 1 times [2018-10-25 02:06:15,686 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:06:15,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:06:15,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:06:15,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:06:15,688 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:06:15,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:06:16,235 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 196 proven. 2 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2018-10-25 02:06:16,236 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 02:06:16,236 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 02:06:16,236 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 693 with the following transitions: [2018-10-25 02:06:16,237 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [37], [41], [45], [56], [60], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [115], [119], [123], [127], [138], [142], [146], [150], [154], [158], [169], [173], [177], [181], [185], [189], [193], [204], [208], [212], [216], [227], [231], [235], [239], [250], [254], [258], [262], [266], [270], [274], [278], [282], [286], [297], [301], [305], [309], [313], [317], [321], [325], [328], [331], [335], [710], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1026], [1028], [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], [1243], [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], [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], [2093], [2104], [2108], [2119], [2123], [2127], [2131], [2135], [2139], [2143], [2147], [2151], [2155], [2159], [2163], [2167], [2171], [2175], [2179], [2183], [2187], [2191], [2202], [2206], [2210], [2214], [2218], [2229], [2233], [2237], [2241], [2252], [2256], [2260], [2264], [2268], [2272], [2276], [2278], [2279], [2283], [2287], [2293], [2297], [2299], [2304], [2305], [2306], [2307], [2308], [2310], [2311] [2018-10-25 02:06:16,243 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 02:06:16,243 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 02:06:21,288 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 02:06:21,288 INFO L272 AbstractInterpreter]: Visited 373 different actions 1124 times. Merged at 9 different actions 33 times. Widened at 1 different actions 1 times. Found 7 fixpoints after 4 different actions. Largest state had 26 variables. [2018-10-25 02:06:21,294 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:06:21,294 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 02:06:21,294 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 02:06:21,294 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 02:06:21,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:06:21,303 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 02:06:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:06:21,517 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 02:06:21,765 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 378 proven. 0 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2018-10-25 02:06:21,765 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 02:06:22,462 INFO L134 CoverageAnalysis]: Checked inductivity of 706 backedges. 196 proven. 2 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2018-10-25 02:06:22,484 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-10-25 02:06:22,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 3 [2018-10-25 02:06:22,485 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 02:06:22,485 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 02:06:22,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 02:06:22,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 02:06:22,486 INFO L87 Difference]: Start difference. First operand 84131 states and 107254 transitions. Second operand 3 states. [2018-10-25 02:06:27,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 02:06:27,901 INFO L93 Difference]: Finished difference Result 172539 states and 221454 transitions. [2018-10-25 02:06:27,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 02:06:27,901 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 692 [2018-10-25 02:06:27,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 02:06:28,214 INFO L225 Difference]: With dead ends: 172539 [2018-10-25 02:06:28,214 INFO L226 Difference]: Without dead ends: 90168 [2018-10-25 02:06:28,350 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1386 GetRequests, 1385 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 02:06:28,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90168 states. [2018-10-25 02:06:30,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90168 to 90158. [2018-10-25 02:06:30,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90158 states. [2018-10-25 02:06:31,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90158 states to 90158 states and 113665 transitions. [2018-10-25 02:06:31,169 INFO L78 Accepts]: Start accepts. Automaton has 90158 states and 113665 transitions. Word has length 692 [2018-10-25 02:06:31,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 02:06:31,170 INFO L481 AbstractCegarLoop]: Abstraction has 90158 states and 113665 transitions. [2018-10-25 02:06:31,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 02:06:31,170 INFO L276 IsEmpty]: Start isEmpty. Operand 90158 states and 113665 transitions. [2018-10-25 02:06:31,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 719 [2018-10-25 02:06:31,249 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 02:06:31,250 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 02:06:31,250 INFO L424 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 02:06:31,251 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:06:31,251 INFO L82 PathProgramCache]: Analyzing trace with hash -234565824, now seen corresponding path program 1 times [2018-10-25 02:06:31,252 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 02:06:31,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:06:31,253 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:06:31,253 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 02:06:31,253 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 02:06:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:06:32,323 WARN L179 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-10-25 02:06:32,511 WARN L179 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-10-25 02:06:33,124 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 192 proven. 349 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2018-10-25 02:06:33,125 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 02:06:33,125 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 02:06:33,125 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 719 with the following transitions: [2018-10-25 02:06:33,125 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [37], [41], [45], [56], [60], [64], [68], [72], [76], [80], [84], [88], [92], [96], [100], [104], [115], [119], [123], [127], [138], [142], [146], [150], [154], [158], [169], [173], [177], [181], [185], [189], [193], [204], [208], [212], [216], [227], [231], [235], [239], [250], [254], [258], [262], [266], [270], [274], [278], [282], [286], [297], [301], [305], [309], [313], [317], [321], [325], [336], [340], [344], [348], [352], [363], [367], [371], [375], [379], [383], [387], [391], [395], [399], [403], [407], [411], [415], [426], [430], [434], [445], [449], [453], [464], [475], [479], [483], [487], [491], [495], [499], [503], [507], [511], [515], [519], [530], [534], [538], [549], [553], [557], [561], [565], [569], [573], [584], [587], [592], [594], [710], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [974], [982], [990], [998], [1006], [1014], [1022], [1026], [1028], [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], [1243], [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], [2093], [2104], [2108], [2119], [2123], [2127], [2131], [2135], [2139], [2143], [2147], [2151], [2155], [2159], [2163], [2167], [2171], [2175], [2179], [2183], [2187], [2191], [2202], [2206], [2210], [2214], [2218], [2229], [2233], [2237], [2241], [2252], [2256], [2260], [2264], [2268], [2272], [2276], [2278], [2279], [2283], [2287], [2293], [2297], [2299], [2304], [2305], [2306], [2307], [2308], [2310], [2311] [2018-10-25 02:06:33,132 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 02:06:33,133 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 02:06:35,367 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 02:06:35,368 INFO L272 AbstractInterpreter]: Visited 422 different actions 1272 times. Merged at 9 different actions 34 times. Widened at 1 different actions 2 times. Found 7 fixpoints after 4 different actions. Largest state had 26 variables. [2018-10-25 02:06:35,375 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 02:06:35,375 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 02:06:35,375 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 02:06:35,375 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 02:06:35,383 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 02:06:35,383 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 02:06:35,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 02:06:35,612 INFO L273 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2018-10-25 02:06:46,696 WARN L187 SmtUtils]: Removed 76 from assertion stack [2018-10-25 02:06:46,697 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-10-25 02:06:46,898 WARN L522 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 02:06:46,899 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-25 02:06:46,905 WARN L205 ceAbstractionStarter]: Timeout [2018-10-25 02:06:46,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 02:06:46 BoogieIcfgContainer [2018-10-25 02:06:46,906 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-25 02:06:46,907 INFO L168 Benchmark]: Toolchain (without parser) took 225692.37 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.3 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -472.2 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-10-25 02:06:46,908 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-10-25 02:06:46,910 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1614.23 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. [2018-10-25 02:06:46,911 INFO L168 Benchmark]: Boogie Procedure Inliner took 409.38 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 787.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -941.3 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. [2018-10-25 02:06:46,912 INFO L168 Benchmark]: Boogie Preprocessor took 239.30 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: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 7.1 GB. [2018-10-25 02:06:46,915 INFO L168 Benchmark]: RCFGBuilder took 13674.37 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: 454.9 MB). Peak memory consumption was 454.9 MB. Max. memory is 7.1 GB. [2018-10-25 02:06:46,916 INFO L168 Benchmark]: TraceAbstraction took 209749.54 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 1.7 GB in the beginning and 1.9 GB in the end (delta: -164.4 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-10-25 02:06:46,924 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 1614.23 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 409.38 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 787.5 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -941.3 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 239.30 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: 41.2 MB). Peak memory consumption was 41.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 13674.37 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: 454.9 MB). Peak memory consumption was 454.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 209749.54 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 1.7 GB in the beginning and 1.9 GB in the end (delta: -164.4 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 143]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 143). Cancelled while BasicCegarLoop was analyzing trace of length 719 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 772. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 209.6s OverallTime, 12 OverallIterations, 5 TraceHistogramMax, 144.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3926 SDtfs, 27585 SDslu, 3132 SDs, 0 SdLazy, 45119 SolverSat, 12281 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 122.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5663 GetRequests, 5508 SyntacticMatches, 15 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1715 ImplicationChecksByTransitivity, 15.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=90158occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 14.0s AbstIntTime, 7 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 10.7s AutomataMinimizationTime, 11 MinimizatonAttempts, 18493 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 21.8s InterpolantComputationTime, 6413 NumberOfCodeBlocks, 6413 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 9140 ConstructedInterpolants, 143 QuantifiedInterpolants, 13716466 SizeOfPredicates, 16 NumberOfNonLiveVariables, 4172 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 23 InterpolantComputations, 8 PerfectInterpolantSequences, 6665/7316 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown