java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label26_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 20:43:55,279 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 20:43:55,284 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 20:43:55,300 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 20:43:55,301 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 20:43:55,302 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 20:43:55,303 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 20:43:55,305 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 20:43:55,307 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 20:43:55,308 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 20:43:55,308 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 20:43:55,309 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 20:43:55,310 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 20:43:55,311 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 20:43:55,315 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 20:43:55,316 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 20:43:55,317 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 20:43:55,319 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 20:43:55,327 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 20:43:55,329 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 20:43:55,330 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 20:43:55,335 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 20:43:55,338 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 20:43:55,338 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 20:43:55,341 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 20:43:55,343 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 20:43:55,344 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 20:43:55,345 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 20:43:55,349 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 20:43:55,350 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 20:43:55,351 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 20:43:55,353 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 20:43:55,354 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 20:43:55,354 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 20:43:55,355 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 20:43:55,355 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 20:43:55,358 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-07 20:43:55,386 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 20:43:55,386 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 20:43:55,387 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 20:43:55,388 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 20:43:55,390 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 20:43:55,390 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 20:43:55,390 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 20:43:55,391 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 20:43:55,391 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 20:43:55,391 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 20:43:55,391 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 20:43:55,391 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 20:43:55,392 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 20:43:55,393 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 20:43:55,393 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 20:43:55,394 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 20:43:55,394 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 20:43:55,394 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 20:43:55,394 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 20:43:55,394 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 20:43:55,394 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 20:43:55,396 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 20:43:55,397 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 20:43:55,397 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 20:43:55,397 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 20:43:55,397 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 20:43:55,397 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 20:43:55,398 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 20:43:55,398 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 20:43:55,398 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 20:43:55,399 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 20:43:55,399 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 20:43:55,399 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 20:43:55,399 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 20:43:55,399 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 20:43:55,461 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 20:43:55,474 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 20:43:55,478 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 20:43:55,480 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 20:43:55,480 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 20:43:55,481 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label26_true-unreach-call.c [2018-11-07 20:43:55,541 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4553510bf/830d782b02c04b22a0f65924d94b88b3/FLAGfaa8c4d2c [2018-11-07 20:43:56,272 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 20:43:56,273 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label26_true-unreach-call.c [2018-11-07 20:43:56,294 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4553510bf/830d782b02c04b22a0f65924d94b88b3/FLAGfaa8c4d2c [2018-11-07 20:43:56,312 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4553510bf/830d782b02c04b22a0f65924d94b88b3 [2018-11-07 20:43:56,324 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 20:43:56,325 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 20:43:56,327 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 20:43:56,327 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 20:43:56,331 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 20:43:56,332 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:43:56" (1/1) ... [2018-11-07 20:43:56,336 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ae48c7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:56, skipping insertion in model container [2018-11-07 20:43:56,336 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:43:56" (1/1) ... [2018-11-07 20:43:56,347 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 20:43:56,449 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 20:43:57,361 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:43:57,365 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 20:43:57,651 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:43:57,678 INFO L193 MainTranslator]: Completed translation [2018-11-07 20:43:57,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:57 WrapperNode [2018-11-07 20:43:57,679 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 20:43:57,680 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 20:43:57,680 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 20:43:57,681 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 20:43:57,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:57" (1/1) ... [2018-11-07 20:43:57,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:57" (1/1) ... [2018-11-07 20:43:57,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 20:43:57,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 20:43:57,911 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 20:43:57,911 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 20:43:57,922 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:57" (1/1) ... [2018-11-07 20:43:57,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:57" (1/1) ... [2018-11-07 20:43:57,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:57" (1/1) ... [2018-11-07 20:43:57,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:57" (1/1) ... [2018-11-07 20:43:58,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:57" (1/1) ... [2018-11-07 20:43:58,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:57" (1/1) ... [2018-11-07 20:43:58,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:57" (1/1) ... [2018-11-07 20:43:58,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 20:43:58,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 20:43:58,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 20:43:58,073 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 20:43:58,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-11-07 20:43:58,140 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 20:43:58,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 20:43:58,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 20:43:58,140 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 20:43:58,140 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 20:43:58,141 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 20:43:58,141 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 20:43:58,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 20:43:58,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 20:43:58,141 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 20:43:58,142 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 20:44:04,406 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 20:44:04,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:44:04 BoogieIcfgContainer [2018-11-07 20:44:04,407 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 20:44:04,408 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 20:44:04,408 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 20:44:04,412 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 20:44:04,412 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:43:56" (1/3) ... [2018-11-07 20:44:04,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b111379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:44:04, skipping insertion in model container [2018-11-07 20:44:04,413 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:43:57" (2/3) ... [2018-11-07 20:44:04,413 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b111379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:44:04, skipping insertion in model container [2018-11-07 20:44:04,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:44:04" (3/3) ... [2018-11-07 20:44:04,416 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label26_true-unreach-call.c [2018-11-07 20:44:04,426 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 20:44:04,435 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 20:44:04,450 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 20:44:04,491 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 20:44:04,492 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 20:44:04,492 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 20:44:04,492 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 20:44:04,492 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 20:44:04,492 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 20:44:04,493 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 20:44:04,493 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 20:44:04,526 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-11-07 20:44:04,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-11-07 20:44:04,543 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:44:04,544 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:44:04,547 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:44:04,553 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:44:04,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1626414812, now seen corresponding path program 1 times [2018-11-07 20:44:04,557 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:44:04,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:44:04,606 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:44:04,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:44:04,607 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:44:04,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:44:05,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:44:05,062 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:44:05,062 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 20:44:05,063 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:44:05,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 20:44:05,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 20:44:05,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 20:44:05,090 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-11-07 20:44:12,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:44:12,254 INFO L93 Difference]: Finished difference Result 1558 states and 2849 transitions. [2018-11-07 20:44:12,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 20:44:12,256 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2018-11-07 20:44:12,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:44:12,287 INFO L225 Difference]: With dead ends: 1558 [2018-11-07 20:44:12,287 INFO L226 Difference]: Without dead ends: 1114 [2018-11-07 20:44:12,306 INFO L604 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 [2018-11-07 20:44:12,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2018-11-07 20:44:12,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 1091. [2018-11-07 20:44:12,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1091 states. [2018-11-07 20:44:12,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1091 states to 1091 states and 1853 transitions. [2018-11-07 20:44:12,459 INFO L78 Accepts]: Start accepts. Automaton has 1091 states and 1853 transitions. Word has length 60 [2018-11-07 20:44:12,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:44:12,460 INFO L480 AbstractCegarLoop]: Abstraction has 1091 states and 1853 transitions. [2018-11-07 20:44:12,460 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 20:44:12,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1091 states and 1853 transitions. [2018-11-07 20:44:12,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2018-11-07 20:44:12,470 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:44:12,470 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:44:12,471 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:44:12,471 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:44:12,471 INFO L82 PathProgramCache]: Analyzing trace with hash -30432942, now seen corresponding path program 1 times [2018-11-07 20:44:12,471 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:44:12,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:44:12,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:44:12,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:44:12,473 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:44:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:44:12,850 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:44:12,850 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:44:12,850 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 20:44:12,850 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:44:12,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 20:44:12,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 20:44:12,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 20:44:12,853 INFO L87 Difference]: Start difference. First operand 1091 states and 1853 transitions. Second operand 5 states. [2018-11-07 20:44:18,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:44:18,580 INFO L93 Difference]: Finished difference Result 3243 states and 5585 transitions. [2018-11-07 20:44:18,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 20:44:18,588 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2018-11-07 20:44:18,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:44:18,610 INFO L225 Difference]: With dead ends: 3243 [2018-11-07 20:44:18,611 INFO L226 Difference]: Without dead ends: 2158 [2018-11-07 20:44:18,618 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 20:44:18,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2018-11-07 20:44:18,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 2114. [2018-11-07 20:44:18,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2114 states. [2018-11-07 20:44:18,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2114 states to 2114 states and 3176 transitions. [2018-11-07 20:44:18,714 INFO L78 Accepts]: Start accepts. Automaton has 2114 states and 3176 transitions. Word has length 133 [2018-11-07 20:44:18,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:44:18,715 INFO L480 AbstractCegarLoop]: Abstraction has 2114 states and 3176 transitions. [2018-11-07 20:44:18,715 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 20:44:18,715 INFO L276 IsEmpty]: Start isEmpty. Operand 2114 states and 3176 transitions. [2018-11-07 20:44:18,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-11-07 20:44:18,720 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:44:18,721 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:44:18,721 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:44:18,721 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:44:18,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1329379774, now seen corresponding path program 1 times [2018-11-07 20:44:18,721 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:44:18,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:44:18,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:44:18,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:44:18,723 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:44:18,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:44:18,964 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:44:18,964 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:44:18,964 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 20:44:18,964 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:44:18,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 20:44:18,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 20:44:18,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 20:44:18,966 INFO L87 Difference]: Start difference. First operand 2114 states and 3176 transitions. Second operand 4 states. [2018-11-07 20:44:24,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:44:24,750 INFO L93 Difference]: Finished difference Result 7960 states and 12495 transitions. [2018-11-07 20:44:24,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 20:44:24,750 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 141 [2018-11-07 20:44:24,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:44:24,790 INFO L225 Difference]: With dead ends: 7960 [2018-11-07 20:44:24,791 INFO L226 Difference]: Without dead ends: 5852 [2018-11-07 20:44:24,815 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 20:44:24,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5852 states. [2018-11-07 20:44:24,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5852 to 5847. [2018-11-07 20:44:24,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5847 states. [2018-11-07 20:44:24,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5847 states to 5847 states and 8247 transitions. [2018-11-07 20:44:24,983 INFO L78 Accepts]: Start accepts. Automaton has 5847 states and 8247 transitions. Word has length 141 [2018-11-07 20:44:24,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:44:24,984 INFO L480 AbstractCegarLoop]: Abstraction has 5847 states and 8247 transitions. [2018-11-07 20:44:24,984 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 20:44:24,984 INFO L276 IsEmpty]: Start isEmpty. Operand 5847 states and 8247 transitions. [2018-11-07 20:44:24,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2018-11-07 20:44:24,988 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:44:24,989 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:44:24,989 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:44:24,989 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:44:24,989 INFO L82 PathProgramCache]: Analyzing trace with hash -386539338, now seen corresponding path program 1 times [2018-11-07 20:44:24,990 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:44:24,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:44:24,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:44:24,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:44:24,991 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:44:25,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:44:25,265 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:44:25,361 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:44:25,362 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:44:25,362 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:44:25,362 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:44:25,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:44:25,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:44:25,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:44:25,364 INFO L87 Difference]: Start difference. First operand 5847 states and 8247 transitions. Second operand 6 states. [2018-11-07 20:44:29,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:44:29,130 INFO L93 Difference]: Finished difference Result 13531 states and 18782 transitions. [2018-11-07 20:44:29,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:44:29,131 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 160 [2018-11-07 20:44:29,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:44:29,172 INFO L225 Difference]: With dead ends: 13531 [2018-11-07 20:44:29,172 INFO L226 Difference]: Without dead ends: 7690 [2018-11-07 20:44:29,213 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 20:44:29,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7690 states. [2018-11-07 20:44:29,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7690 to 7626. [2018-11-07 20:44:29,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7626 states. [2018-11-07 20:44:29,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7626 states to 7626 states and 9939 transitions. [2018-11-07 20:44:29,424 INFO L78 Accepts]: Start accepts. Automaton has 7626 states and 9939 transitions. Word has length 160 [2018-11-07 20:44:29,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:44:29,424 INFO L480 AbstractCegarLoop]: Abstraction has 7626 states and 9939 transitions. [2018-11-07 20:44:29,424 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:44:29,425 INFO L276 IsEmpty]: Start isEmpty. Operand 7626 states and 9939 transitions. [2018-11-07 20:44:29,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2018-11-07 20:44:29,431 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:44:29,431 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:44:29,432 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:44:29,432 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:44:29,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1240653666, now seen corresponding path program 1 times [2018-11-07 20:44:29,432 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:44:29,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:44:29,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:44:29,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:44:29,436 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:44:29,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:44:29,934 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-11-07 20:44:29,936 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:44:29,936 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 20:44:29,936 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:44:29,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 20:44:29,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 20:44:29,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 20:44:29,937 INFO L87 Difference]: Start difference. First operand 7626 states and 9939 transitions. Second operand 4 states. [2018-11-07 20:44:34,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:44:34,065 INFO L93 Difference]: Finished difference Result 24545 states and 32869 transitions. [2018-11-07 20:44:34,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 20:44:34,066 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 215 [2018-11-07 20:44:34,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:44:34,140 INFO L225 Difference]: With dead ends: 24545 [2018-11-07 20:44:34,140 INFO L226 Difference]: Without dead ends: 16925 [2018-11-07 20:44:34,184 INFO L604 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 [2018-11-07 20:44:34,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16925 states. [2018-11-07 20:44:34,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16925 to 16303. [2018-11-07 20:44:34,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16303 states. [2018-11-07 20:44:34,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16303 states to 16303 states and 20254 transitions. [2018-11-07 20:44:34,580 INFO L78 Accepts]: Start accepts. Automaton has 16303 states and 20254 transitions. Word has length 215 [2018-11-07 20:44:34,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:44:34,581 INFO L480 AbstractCegarLoop]: Abstraction has 16303 states and 20254 transitions. [2018-11-07 20:44:34,581 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 20:44:34,581 INFO L276 IsEmpty]: Start isEmpty. Operand 16303 states and 20254 transitions. [2018-11-07 20:44:34,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-11-07 20:44:34,594 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:44:34,594 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:44:34,594 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:44:34,595 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:44:34,595 INFO L82 PathProgramCache]: Analyzing trace with hash -624386788, now seen corresponding path program 1 times [2018-11-07 20:44:34,595 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:44:34,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:44:34,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:44:34,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:44:34,596 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:44:34,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:44:35,246 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 111 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-07 20:44:35,246 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:44:35,246 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:44:35,247 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 242 with the following transitions: [2018-11-07 20:44:35,250 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [453], [455], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [714], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 20:44:35,301 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:44:35,302 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:44:35,852 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:44:35,854 INFO L272 AbstractInterpreter]: Visited 105 different actions 105 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 20:44:35,910 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:44:35,910 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:44:36,534 INFO L227 lantSequenceWeakener]: Weakened 232 states. On average, predicates are now at 78.08% of their original sizes. [2018-11-07 20:44:36,534 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:44:36,961 INFO L415 sIntCurrentIteration]: We unified 240 AI predicates to 240 [2018-11-07 20:44:36,961 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:44:36,962 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:44:36,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2018-11-07 20:44:36,966 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:44:36,967 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-07 20:44:36,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-07 20:44:36,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 20:44:36,967 INFO L87 Difference]: Start difference. First operand 16303 states and 20254 transitions. Second operand 8 states. [2018-11-07 20:44:40,402 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:45:12,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:45:12,826 INFO L93 Difference]: Finished difference Result 32910 states and 40864 transitions. [2018-11-07 20:45:12,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 20:45:12,826 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 241 [2018-11-07 20:45:12,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:45:12,892 INFO L225 Difference]: With dead ends: 32910 [2018-11-07 20:45:12,894 INFO L226 Difference]: Without dead ends: 16613 [2018-11-07 20:45:12,937 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 242 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 20:45:12,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16613 states. [2018-11-07 20:45:13,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16613 to 16611. [2018-11-07 20:45:13,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16611 states. [2018-11-07 20:45:13,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16611 states to 16611 states and 20571 transitions. [2018-11-07 20:45:13,331 INFO L78 Accepts]: Start accepts. Automaton has 16611 states and 20571 transitions. Word has length 241 [2018-11-07 20:45:13,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:45:13,331 INFO L480 AbstractCegarLoop]: Abstraction has 16611 states and 20571 transitions. [2018-11-07 20:45:13,331 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-07 20:45:13,331 INFO L276 IsEmpty]: Start isEmpty. Operand 16611 states and 20571 transitions. [2018-11-07 20:45:13,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2018-11-07 20:45:13,352 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:45:13,352 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:45:13,353 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:45:13,353 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:45:13,353 INFO L82 PathProgramCache]: Analyzing trace with hash 675271699, now seen corresponding path program 1 times [2018-11-07 20:45:13,353 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:45:13,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:45:13,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:45:13,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:45:13,354 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:45:13,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:45:14,461 WARN L179 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 14 [2018-11-07 20:45:14,768 WARN L179 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-11-07 20:45:14,934 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 243 proven. 169 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 20:45:14,934 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:45:14,934 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:45:14,934 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 338 with the following transitions: [2018-11-07 20:45:14,935 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [453], [455], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [691], [692], [696], [707], [711], [714], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 20:45:14,940 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:45:14,940 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:45:15,001 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:45:15,471 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:45:15,472 INFO L272 AbstractInterpreter]: Visited 109 different actions 727 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 20:45:15,480 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:45:15,480 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:45:16,080 INFO L227 lantSequenceWeakener]: Weakened 93 states. On average, predicates are now at 77.66% of their original sizes. [2018-11-07 20:45:16,080 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:45:17,016 INFO L415 sIntCurrentIteration]: We unified 336 AI predicates to 336 [2018-11-07 20:45:17,017 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:45:17,017 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:45:17,017 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [11] total 29 [2018-11-07 20:45:17,017 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:45:17,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-07 20:45:17,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-07 20:45:17,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2018-11-07 20:45:17,020 INFO L87 Difference]: Start difference. First operand 16611 states and 20571 transitions. Second operand 20 states. [2018-11-07 20:46:22,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:46:22,285 INFO L93 Difference]: Finished difference Result 35672 states and 44003 transitions. [2018-11-07 20:46:22,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-11-07 20:46:22,285 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 337 [2018-11-07 20:46:22,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:46:22,345 INFO L225 Difference]: With dead ends: 35672 [2018-11-07 20:46:22,346 INFO L226 Difference]: Without dead ends: 19375 [2018-11-07 20:46:22,381 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 357 GetRequests, 314 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=350, Invalid=1290, Unknown=0, NotChecked=0, Total=1640 [2018-11-07 20:46:22,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19375 states. [2018-11-07 20:46:22,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19375 to 18142. [2018-11-07 20:46:22,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18142 states. [2018-11-07 20:46:22,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18142 states to 18142 states and 22169 transitions. [2018-11-07 20:46:22,719 INFO L78 Accepts]: Start accepts. Automaton has 18142 states and 22169 transitions. Word has length 337 [2018-11-07 20:46:22,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:46:22,720 INFO L480 AbstractCegarLoop]: Abstraction has 18142 states and 22169 transitions. [2018-11-07 20:46:22,720 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-07 20:46:22,720 INFO L276 IsEmpty]: Start isEmpty. Operand 18142 states and 22169 transitions. [2018-11-07 20:46:22,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2018-11-07 20:46:22,746 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:46:22,747 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:46:22,747 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:46:22,748 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:46:22,748 INFO L82 PathProgramCache]: Analyzing trace with hash 860033750, now seen corresponding path program 1 times [2018-11-07 20:46:22,748 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:46:22,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:46:22,749 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:46:22,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:46:22,749 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:46:22,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:46:23,505 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 190 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:46:23,506 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:46:23,506 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:46:23,506 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 434 with the following transitions: [2018-11-07 20:46:23,507 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [453], [455], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [644], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1379], [1383], [1394], [1398], [1402], [1406], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1471], [1475], [1486], [1490], [1494], [1498], [1502], [1506], [1510], [1514], [1518], [1522], [1526], [1530], [1534], [1538], [1542], [1546], [1550], [1554], [1558], [1562], [1566], [1570], [1581], [1585], [1589], [1593], [1597], [1601], [1612], [1616], [1620], [1623], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 20:46:23,516 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:46:23,516 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:46:24,044 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:46:24,044 INFO L272 AbstractInterpreter]: Visited 295 different actions 584 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 20:46:24,083 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:46:24,083 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:46:24,705 INFO L227 lantSequenceWeakener]: Weakened 85 states. On average, predicates are now at 82.29% of their original sizes. [2018-11-07 20:46:24,705 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:46:25,130 INFO L415 sIntCurrentIteration]: We unified 432 AI predicates to 432 [2018-11-07 20:46:25,130 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:46:25,131 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:46:25,131 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [6] total 25 [2018-11-07 20:46:25,131 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:46:25,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-11-07 20:46:25,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-11-07 20:46:25,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2018-11-07 20:46:25,133 INFO L87 Difference]: Start difference. First operand 18142 states and 22169 transitions. Second operand 21 states. [2018-11-07 20:46:27,564 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:47:12,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:47:12,631 INFO L93 Difference]: Finished difference Result 35360 states and 43591 transitions. [2018-11-07 20:47:12,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-07 20:47:12,631 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 433 [2018-11-07 20:47:12,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:47:12,684 INFO L225 Difference]: With dead ends: 35360 [2018-11-07 20:47:12,684 INFO L226 Difference]: Without dead ends: 19063 [2018-11-07 20:47:12,718 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 448 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=254, Invalid=1078, Unknown=0, NotChecked=0, Total=1332 [2018-11-07 20:47:12,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19063 states. [2018-11-07 20:47:12,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19063 to 19057. [2018-11-07 20:47:12,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19057 states. [2018-11-07 20:47:13,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19057 states to 19057 states and 23164 transitions. [2018-11-07 20:47:13,022 INFO L78 Accepts]: Start accepts. Automaton has 19057 states and 23164 transitions. Word has length 433 [2018-11-07 20:47:13,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:47:13,023 INFO L480 AbstractCegarLoop]: Abstraction has 19057 states and 23164 transitions. [2018-11-07 20:47:13,023 INFO L481 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-11-07 20:47:13,024 INFO L276 IsEmpty]: Start isEmpty. Operand 19057 states and 23164 transitions. [2018-11-07 20:47:13,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2018-11-07 20:47:13,050 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:47:13,050 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:47:13,051 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:47:13,051 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:47:13,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1728959584, now seen corresponding path program 1 times [2018-11-07 20:47:13,051 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:47:13,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:47:13,052 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:47:13,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:47:13,052 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:47:13,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:47:14,106 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 170 proven. 6 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2018-11-07 20:47:14,106 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:47:14,106 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:47:14,107 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 480 with the following transitions: [2018-11-07 20:47:14,107 INFO L202 CegarAbsIntRunner]: [0], [1], [74], [81], [89], [97], [105], [113], [121], [129], [137], [145], [153], [161], [169], [177], [185], [193], [201], [209], [217], [225], [233], [241], [249], [257], [265], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [453], [455], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [714], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [975], [979], [983], [987], [991], [1002], [1006], [1010], [1014], [1018], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1072], [1076], [1080], [1084], [1088], [1092], [1096], [1100], [1104], [1108], [1112], [1116], [1120], [1124], [1128], [1132], [1136], [1140], [1144], [1148], [1152], [1156], [1160], [1164], [1168], [1172], [1176], [1180], [1191], [1202], [1206], [1210], [1214], [1218], [1229], [1233], [1237], [1241], [1245], [1256], [1260], [1264], [1268], [1272], [1276], [1280], [1284], [1288], [1292], [1296], [1300], [1304], [1308], [1312], [1316], [1320], [1324], [1328], [1332], [1336], [1340], [1344], [1348], [1352], [1356], [1367], [1371], [1375], [1378], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 20:47:14,113 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:47:14,113 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:47:14,379 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:47:14,845 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:47:14,845 INFO L272 AbstractInterpreter]: Visited 247 different actions 728 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 20:47:14,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:47:14,853 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:47:15,429 INFO L227 lantSequenceWeakener]: Weakened 96 states. On average, predicates are now at 77.7% of their original sizes. [2018-11-07 20:47:15,429 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:47:20,354 INFO L415 sIntCurrentIteration]: We unified 478 AI predicates to 478 [2018-11-07 20:47:20,354 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:47:20,355 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:47:20,355 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [7] total 20 [2018-11-07 20:47:20,355 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:47:20,356 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-07 20:47:20,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-07 20:47:20,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2018-11-07 20:47:20,357 INFO L87 Difference]: Start difference. First operand 19057 states and 23164 transitions. Second operand 15 states. Received shutdown request... [2018-11-07 20:47:26,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-07 20:47:26,988 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 20:47:26,995 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 20:47:26,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:47:26 BoogieIcfgContainer [2018-11-07 20:47:26,995 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 20:47:26,996 INFO L168 Benchmark]: Toolchain (without parser) took 210672.07 ms. Allocated memory was 1.5 GB in the beginning and 4.8 GB in the end (delta: 3.3 GB). Free memory was 1.4 GB in the beginning and 4.5 GB in the end (delta: -3.2 GB). Peak memory consumption was 158.3 MB. Max. memory is 7.1 GB. [2018-11-07 20:47:26,997 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 20:47:26,998 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1352.81 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: 95.3 MB). Peak memory consumption was 95.3 MB. Max. memory is 7.1 GB. [2018-11-07 20:47:26,999 INFO L168 Benchmark]: Boogie Procedure Inliner took 230.16 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 729.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -875.9 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. [2018-11-07 20:47:26,999 INFO L168 Benchmark]: Boogie Preprocessor took 161.81 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2018-11-07 20:47:27,000 INFO L168 Benchmark]: RCFGBuilder took 6334.10 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 285.0 MB). Peak memory consumption was 285.0 MB. Max. memory is 7.1 GB. [2018-11-07 20:47:27,001 INFO L168 Benchmark]: TraceAbstraction took 202587.61 ms. Allocated memory was 2.2 GB in the beginning and 4.8 GB in the end (delta: 2.6 GB). Free memory was 1.9 GB in the beginning and 4.5 GB in the end (delta: -2.7 GB). There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 20:47:27,005 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1352.81 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: 95.3 MB). Peak memory consumption was 95.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 230.16 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 729.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -875.9 MB). Peak memory consumption was 31.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 161.81 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6334.10 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 285.0 MB). Peak memory consumption was 285.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 202587.61 ms. Allocated memory was 2.2 GB in the beginning and 4.8 GB in the end (delta: 2.6 GB). Free memory was 1.9 GB in the beginning and 4.5 GB in the end (delta: -2.7 GB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 166]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 166). Cancelled while BasicCegarLoop was constructing difference of abstraction (19057states) and FLOYD_HOARE automaton (currently 9 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (514 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 202.5s OverallTime, 9 OverallIterations, 4 TraceHistogramMax, 182.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2717 SDtfs, 17712 SDslu, 2536 SDs, 0 SdLazy, 27155 SolverSat, 2794 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 73.4s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 1565 GetRequests, 1281 SyntacticMatches, 165 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1691 ImplicationChecksByTransitivity, 9.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19057occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.5s AbstIntTime, 4 AbstIntIterations, 4 AbstIntStrong, 0.9977472414298515 AbsIntWeakeningRatio, 0.07806191117092867 AbsIntAvgWeakeningVarsNumRemoved, 14.420592193808883 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 1999 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 2199 NumberOfCodeBlocks, 2199 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2190 ConstructedInterpolants, 0 QuantifiedInterpolants, 2256232 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 1377/1556 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown