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-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem15_label24_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 09:06:39,201 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 09:06:39,203 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 09:06:39,216 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 09:06:39,217 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 09:06:39,218 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 09:06:39,219 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 09:06:39,221 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 09:06:39,222 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 09:06:39,223 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 09:06:39,224 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 09:06:39,225 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 09:06:39,225 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 09:06:39,226 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 09:06:39,228 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 09:06:39,228 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 09:06:39,229 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 09:06:39,231 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 09:06:39,233 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 09:06:39,235 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 09:06:39,236 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 09:06:39,237 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 09:06:39,239 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 09:06:39,240 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 09:06:39,240 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 09:06:39,241 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 09:06:39,242 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 09:06:39,242 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 09:06:39,243 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 09:06:39,244 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 09:06:39,245 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 09:06:39,245 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 09:06:39,245 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 09:06:39,246 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 09:06:39,247 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 09:06:39,247 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 09:06:39,248 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-11-07 09:06:39,264 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 09:06:39,264 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 09:06:39,265 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 09:06:39,266 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 09:06:39,266 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 09:06:39,266 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 09:06:39,266 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-07 09:06:39,266 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 09:06:39,267 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 09:06:39,267 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 09:06:39,267 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 09:06:39,267 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 09:06:39,267 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 09:06:39,268 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 09:06:39,268 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 09:06:39,269 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 09:06:39,269 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 09:06:39,269 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 09:06:39,269 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 09:06:39,269 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 09:06:39,270 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 09:06:39,270 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 09:06:39,270 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 09:06:39,270 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 09:06:39,271 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 09:06:39,271 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 09:06:39,271 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 09:06:39,271 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 09:06:39,271 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 09:06:39,272 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 09:06:39,272 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 09:06:39,272 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 09:06:39,272 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 09:06:39,272 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 09:06:39,273 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 09:06:39,273 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 09:06:39,322 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 09:06:39,342 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 09:06:39,346 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 09:06:39,348 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 09:06:39,349 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 09:06:39,350 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label24_true-unreach-call.c [2018-11-07 09:06:39,423 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d9a99909/425bd8a42e834440a6b5ff794d59f577/FLAG29afacb2c [2018-11-07 09:06:40,168 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 09:06:40,170 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label24_true-unreach-call.c [2018-11-07 09:06:40,189 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d9a99909/425bd8a42e834440a6b5ff794d59f577/FLAG29afacb2c [2018-11-07 09:06:40,204 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d9a99909/425bd8a42e834440a6b5ff794d59f577 [2018-11-07 09:06:40,216 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 09:06:40,217 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 09:06:40,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 09:06:40,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 09:06:40,225 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 09:06:40,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:06:40" (1/1) ... [2018-11-07 09:06:40,230 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 09:06:40, skipping insertion in model container [2018-11-07 09:06:40,230 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:06:40" (1/1) ... [2018-11-07 09:06:40,241 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 09:06:40,355 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 09:06:41,260 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 09:06:41,265 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 09:06:41,617 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 09:06:41,637 INFO L193 MainTranslator]: Completed translation [2018-11-07 09:06:41,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:06:41 WrapperNode [2018-11-07 09:06:41,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 09:06:41,639 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 09:06:41,639 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 09:06:41,640 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 09:06:41,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:06:41" (1/1) ... [2018-11-07 09:06:41,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:06:41" (1/1) ... [2018-11-07 09:06:41,852 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 09:06:41,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 09:06:41,853 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 09:06:41,853 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 09:06:41,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:06:41" (1/1) ... [2018-11-07 09:06:41,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:06:41" (1/1) ... [2018-11-07 09:06:41,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:06:41" (1/1) ... [2018-11-07 09:06:41,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:06:41" (1/1) ... [2018-11-07 09:06:41,948 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:06:41" (1/1) ... [2018-11-07 09:06:41,964 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:06:41" (1/1) ... [2018-11-07 09:06:41,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:06:41" (1/1) ... [2018-11-07 09:06:42,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 09:06:42,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 09:06:42,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 09:06:42,016 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 09:06:42,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:06:41" (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 09:06:42,082 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 09:06:42,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 09:06:42,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 09:06:42,083 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 09:06:42,083 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 09:06:42,083 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 09:06:42,083 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 09:06:42,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 09:06:42,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 09:06:42,084 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 09:06:42,084 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 09:06:48,361 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 09:06:48,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:06:48 BoogieIcfgContainer [2018-11-07 09:06:48,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 09:06:48,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 09:06:48,363 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 09:06:48,367 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 09:06:48,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:06:40" (1/3) ... [2018-11-07 09:06:48,368 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 09:06:48, skipping insertion in model container [2018-11-07 09:06:48,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:06:41" (2/3) ... [2018-11-07 09:06:48,368 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 09:06:48, skipping insertion in model container [2018-11-07 09:06:48,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:06:48" (3/3) ... [2018-11-07 09:06:48,370 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label24_true-unreach-call.c [2018-11-07 09:06:48,381 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 09:06:48,392 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 09:06:48,411 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 09:06:48,453 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 09:06:48,453 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 09:06:48,453 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 09:06:48,453 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 09:06:48,454 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 09:06:48,454 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 09:06:48,454 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 09:06:48,454 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 09:06:48,487 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-11-07 09:06:48,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-07 09:06:48,497 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:06:48,498 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] [2018-11-07 09:06:48,501 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:06:48,506 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:06:48,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1425761551, now seen corresponding path program 1 times [2018-11-07 09:06:48,509 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:06:48,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:06:48,563 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:06:48,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:06:48,563 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:06:48,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:06:48,991 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 09:06:48,994 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:06:48,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 09:06:48,995 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:06:49,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 09:06:49,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 09:06:49,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 09:06:49,024 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 3 states. [2018-11-07 09:06:52,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:06:52,703 INFO L93 Difference]: Finished difference Result 1198 states and 2158 transitions. [2018-11-07 09:06:52,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 09:06:52,705 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2018-11-07 09:06:52,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:06:52,728 INFO L225 Difference]: With dead ends: 1198 [2018-11-07 09:06:52,729 INFO L226 Difference]: Without dead ends: 758 [2018-11-07 09:06:52,740 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 09:06:52,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2018-11-07 09:06:52,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 754. [2018-11-07 09:06:52,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 754 states. [2018-11-07 09:06:52,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1328 transitions. [2018-11-07 09:06:52,874 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1328 transitions. Word has length 45 [2018-11-07 09:06:52,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:06:52,875 INFO L480 AbstractCegarLoop]: Abstraction has 754 states and 1328 transitions. [2018-11-07 09:06:52,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 09:06:52,875 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1328 transitions. [2018-11-07 09:06:52,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2018-11-07 09:06:52,888 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:06:52,888 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:06:52,889 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:06:52,889 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:06:52,889 INFO L82 PathProgramCache]: Analyzing trace with hash 146607380, now seen corresponding path program 1 times [2018-11-07 09:06:52,890 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:06:52,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:06:52,891 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:06:52,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:06:52,891 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:06:52,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:06:53,289 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:06:53,290 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:06:53,290 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 09:06:53,290 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:06:53,295 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 09:06:53,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 09:06:53,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 09:06:53,296 INFO L87 Difference]: Start difference. First operand 754 states and 1328 transitions. Second operand 5 states. [2018-11-07 09:06:59,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:06:59,187 INFO L93 Difference]: Finished difference Result 2231 states and 3964 transitions. [2018-11-07 09:06:59,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 09:06:59,188 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 119 [2018-11-07 09:06:59,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:06:59,201 INFO L225 Difference]: With dead ends: 2231 [2018-11-07 09:06:59,201 INFO L226 Difference]: Without dead ends: 1483 [2018-11-07 09:06:59,206 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 09:06:59,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2018-11-07 09:06:59,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1449. [2018-11-07 09:06:59,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1449 states. [2018-11-07 09:06:59,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1449 states to 1449 states and 2254 transitions. [2018-11-07 09:06:59,290 INFO L78 Accepts]: Start accepts. Automaton has 1449 states and 2254 transitions. Word has length 119 [2018-11-07 09:06:59,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:06:59,290 INFO L480 AbstractCegarLoop]: Abstraction has 1449 states and 2254 transitions. [2018-11-07 09:06:59,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 09:06:59,291 INFO L276 IsEmpty]: Start isEmpty. Operand 1449 states and 2254 transitions. [2018-11-07 09:06:59,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2018-11-07 09:06:59,303 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:06:59,304 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:06:59,304 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:06:59,304 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:06:59,305 INFO L82 PathProgramCache]: Analyzing trace with hash -762150644, now seen corresponding path program 1 times [2018-11-07 09:06:59,305 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:06:59,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:06:59,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:06:59,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:06:59,306 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:06:59,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:06:59,619 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:06:59,620 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:06:59,620 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 09:06:59,620 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:06:59,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:06:59,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:06:59,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:06:59,623 INFO L87 Difference]: Start difference. First operand 1449 states and 2254 transitions. Second operand 6 states. [2018-11-07 09:07:05,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:07:05,875 INFO L93 Difference]: Finished difference Result 4188 states and 6605 transitions. [2018-11-07 09:07:05,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 09:07:05,876 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2018-11-07 09:07:05,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:07:05,897 INFO L225 Difference]: With dead ends: 4188 [2018-11-07 09:07:05,898 INFO L226 Difference]: Without dead ends: 2745 [2018-11-07 09:07:05,907 INFO L604 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 [2018-11-07 09:07:05,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2745 states. [2018-11-07 09:07:05,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2745 to 2711. [2018-11-07 09:07:05,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2711 states. [2018-11-07 09:07:06,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2711 states to 2711 states and 3819 transitions. [2018-11-07 09:07:06,007 INFO L78 Accepts]: Start accepts. Automaton has 2711 states and 3819 transitions. Word has length 131 [2018-11-07 09:07:06,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:07:06,008 INFO L480 AbstractCegarLoop]: Abstraction has 2711 states and 3819 transitions. [2018-11-07 09:07:06,008 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:07:06,008 INFO L276 IsEmpty]: Start isEmpty. Operand 2711 states and 3819 transitions. [2018-11-07 09:07:06,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2018-11-07 09:07:06,012 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:07:06,012 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:07:06,013 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:07:06,013 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:07:06,013 INFO L82 PathProgramCache]: Analyzing trace with hash -131413768, now seen corresponding path program 1 times [2018-11-07 09:07:06,013 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:07:06,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:07:06,015 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:07:06,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:07:06,015 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:07:06,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:07:06,449 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:07:06,450 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:07:06,450 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 09:07:06,450 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:07:06,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:07:06,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:07:06,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:07:06,451 INFO L87 Difference]: Start difference. First operand 2711 states and 3819 transitions. Second operand 6 states. [2018-11-07 09:07:10,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:07:10,758 INFO L93 Difference]: Finished difference Result 6682 states and 9546 transitions. [2018-11-07 09:07:10,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 09:07:10,759 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2018-11-07 09:07:10,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:07:10,780 INFO L225 Difference]: With dead ends: 6682 [2018-11-07 09:07:10,781 INFO L226 Difference]: Without dead ends: 3977 [2018-11-07 09:07:10,794 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 09:07:10,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3977 states. [2018-11-07 09:07:10,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3977 to 3953. [2018-11-07 09:07:10,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3953 states. [2018-11-07 09:07:10,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3953 states to 3953 states and 5247 transitions. [2018-11-07 09:07:10,897 INFO L78 Accepts]: Start accepts. Automaton has 3953 states and 5247 transitions. Word has length 132 [2018-11-07 09:07:10,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:07:10,898 INFO L480 AbstractCegarLoop]: Abstraction has 3953 states and 5247 transitions. [2018-11-07 09:07:10,898 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:07:10,898 INFO L276 IsEmpty]: Start isEmpty. Operand 3953 states and 5247 transitions. [2018-11-07 09:07:10,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-11-07 09:07:10,901 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:07:10,901 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:07:10,902 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:07:10,902 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:07:10,902 INFO L82 PathProgramCache]: Analyzing trace with hash 61536093, now seen corresponding path program 1 times [2018-11-07 09:07:10,902 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:07:10,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:07:10,903 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:07:10,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:07:10,903 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:07:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:07:11,175 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:07:11,175 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:07:11,175 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 09:07:11,175 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:07:11,176 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:07:11,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:07:11,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:07:11,177 INFO L87 Difference]: Start difference. First operand 3953 states and 5247 transitions. Second operand 6 states. [2018-11-07 09:07:19,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:07:19,118 INFO L93 Difference]: Finished difference Result 14055 states and 18983 transitions. [2018-11-07 09:07:19,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 09:07:19,120 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2018-11-07 09:07:19,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:07:19,170 INFO L225 Difference]: With dead ends: 14055 [2018-11-07 09:07:19,171 INFO L226 Difference]: Without dead ends: 10108 [2018-11-07 09:07:19,195 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 09:07:19,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10108 states. [2018-11-07 09:07:19,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10108 to 9903. [2018-11-07 09:07:19,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9903 states. [2018-11-07 09:07:19,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9903 states to 9903 states and 12523 transitions. [2018-11-07 09:07:19,447 INFO L78 Accepts]: Start accepts. Automaton has 9903 states and 12523 transitions. Word has length 172 [2018-11-07 09:07:19,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:07:19,448 INFO L480 AbstractCegarLoop]: Abstraction has 9903 states and 12523 transitions. [2018-11-07 09:07:19,448 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:07:19,448 INFO L276 IsEmpty]: Start isEmpty. Operand 9903 states and 12523 transitions. [2018-11-07 09:07:19,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2018-11-07 09:07:19,455 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:07:19,456 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:07:19,456 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:07:19,456 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:07:19,456 INFO L82 PathProgramCache]: Analyzing trace with hash 183841615, now seen corresponding path program 1 times [2018-11-07 09:07:19,457 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:07:19,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:07:19,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:07:19,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:07:19,458 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:07:19,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:07:19,771 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2018-11-07 09:07:19,772 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:07:19,772 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 09:07:19,772 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:07:19,773 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 09:07:19,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 09:07:19,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 09:07:19,773 INFO L87 Difference]: Start difference. First operand 9903 states and 12523 transitions. Second operand 4 states. [2018-11-07 09:07:24,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:07:24,243 INFO L93 Difference]: Finished difference Result 32954 states and 43877 transitions. [2018-11-07 09:07:24,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 09:07:24,254 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 200 [2018-11-07 09:07:24,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:07:24,346 INFO L225 Difference]: With dead ends: 32954 [2018-11-07 09:07:24,347 INFO L226 Difference]: Without dead ends: 23057 [2018-11-07 09:07:24,423 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 09:07:24,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23057 states. [2018-11-07 09:07:24,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23057 to 22425. [2018-11-07 09:07:24,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22425 states. [2018-11-07 09:07:24,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22425 states to 22425 states and 27436 transitions. [2018-11-07 09:07:24,915 INFO L78 Accepts]: Start accepts. Automaton has 22425 states and 27436 transitions. Word has length 200 [2018-11-07 09:07:24,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:07:24,915 INFO L480 AbstractCegarLoop]: Abstraction has 22425 states and 27436 transitions. [2018-11-07 09:07:24,915 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 09:07:24,915 INFO L276 IsEmpty]: Start isEmpty. Operand 22425 states and 27436 transitions. [2018-11-07 09:07:24,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2018-11-07 09:07:24,929 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:07:24,929 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:07:24,929 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:07:24,930 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:07:24,930 INFO L82 PathProgramCache]: Analyzing trace with hash 1258150557, now seen corresponding path program 1 times [2018-11-07 09:07:24,930 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:07:24,934 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:07:24,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:07:24,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:07:24,935 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:07:24,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:07:25,174 WARN L179 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 3 [2018-11-07 09:07:25,203 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-11-07 09:07:25,204 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 09:07:25,204 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 09:07:25,204 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:07:25,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 09:07:25,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 09:07:25,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 09:07:25,205 INFO L87 Difference]: Start difference. First operand 22425 states and 27436 transitions. Second operand 3 states. [2018-11-07 09:07:28,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:07:28,614 INFO L93 Difference]: Finished difference Result 50641 states and 63873 transitions. [2018-11-07 09:07:28,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 09:07:28,615 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 213 [2018-11-07 09:07:28,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:07:28,754 INFO L225 Difference]: With dead ends: 50641 [2018-11-07 09:07:28,754 INFO L226 Difference]: Without dead ends: 28222 [2018-11-07 09:07:28,826 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 09:07:28,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28222 states. [2018-11-07 09:07:29,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28222 to 28123. [2018-11-07 09:07:29,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28123 states. [2018-11-07 09:07:29,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28123 states to 28123 states and 35307 transitions. [2018-11-07 09:07:29,547 INFO L78 Accepts]: Start accepts. Automaton has 28123 states and 35307 transitions. Word has length 213 [2018-11-07 09:07:29,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:07:29,548 INFO L480 AbstractCegarLoop]: Abstraction has 28123 states and 35307 transitions. [2018-11-07 09:07:29,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 09:07:29,548 INFO L276 IsEmpty]: Start isEmpty. Operand 28123 states and 35307 transitions. [2018-11-07 09:07:29,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2018-11-07 09:07:29,567 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:07:29,567 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 09:07:29,567 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:07:29,568 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:07:29,568 INFO L82 PathProgramCache]: Analyzing trace with hash -79355213, now seen corresponding path program 1 times [2018-11-07 09:07:29,568 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:07:29,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:07:29,570 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:07:29,570 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:07:29,570 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:07:29,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:07:30,341 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 155 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:07:30,342 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:07:30,342 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:07:30,343 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 219 with the following transitions: [2018-11-07 09:07:30,352 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], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [660], [663], [667], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 09:07:30,402 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:07:30,403 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:07:30,873 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 09:07:30,877 INFO L272 AbstractInterpreter]: Visited 95 different actions 95 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 09:07:30,889 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:07:30,889 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 09:07:31,379 INFO L227 lantSequenceWeakener]: Weakened 207 states. On average, predicates are now at 77.9% of their original sizes. [2018-11-07 09:07:31,379 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 09:07:31,631 INFO L415 sIntCurrentIteration]: We unified 217 AI predicates to 217 [2018-11-07 09:07:31,631 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 09:07:31,635 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 09:07:31,636 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 10 [2018-11-07 09:07:31,636 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:07:31,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 09:07:31,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 09:07:31,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 09:07:31,637 INFO L87 Difference]: Start difference. First operand 28123 states and 35307 transitions. Second operand 6 states. [2018-11-07 09:08:03,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:08:03,651 INFO L93 Difference]: Finished difference Result 56550 states and 70970 transitions. [2018-11-07 09:08:03,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 09:08:03,652 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 218 [2018-11-07 09:08:03,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:08:03,753 INFO L225 Difference]: With dead ends: 56550 [2018-11-07 09:08:03,754 INFO L226 Difference]: Without dead ends: 28433 [2018-11-07 09:08:03,839 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 218 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-07 09:08:03,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28433 states. [2018-11-07 09:08:04,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28433 to 28431. [2018-11-07 09:08:04,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28431 states. [2018-11-07 09:08:04,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28431 states to 28431 states and 35624 transitions. [2018-11-07 09:08:04,419 INFO L78 Accepts]: Start accepts. Automaton has 28431 states and 35624 transitions. Word has length 218 [2018-11-07 09:08:04,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:08:04,420 INFO L480 AbstractCegarLoop]: Abstraction has 28431 states and 35624 transitions. [2018-11-07 09:08:04,420 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 09:08:04,420 INFO L276 IsEmpty]: Start isEmpty. Operand 28431 states and 35624 transitions. [2018-11-07 09:08:04,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2018-11-07 09:08:04,445 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:08:04,446 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 09:08:04,446 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:08:04,446 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:08:04,447 INFO L82 PathProgramCache]: Analyzing trace with hash -174466883, now seen corresponding path program 1 times [2018-11-07 09:08:04,447 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:08:04,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:08:04,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:08:04,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:08:04,448 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:08:04,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:08:04,856 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 286 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-11-07 09:08:04,857 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:08:04,857 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:08:04,857 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 315 with the following transitions: [2018-11-07 09:08:04,858 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], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [617], [618], [622], [626], [630], [641], [645], [649], [653], [657], [660], [663], [667], [668], [672], [676], [680], [684], [688], [691], [1635], [1639], [1643], [1649], [1653], [1655], [1662], [1663], [1664], [1666], [1667] [2018-11-07 09:08:04,863 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:08:04,863 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:08:05,044 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 09:08:05,045 INFO L272 AbstractInterpreter]: Visited 105 different actions 302 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 09:08:05,083 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:08:05,084 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 09:08:05,373 INFO L227 lantSequenceWeakener]: Weakened 309 states. On average, predicates are now at 83.78% of their original sizes. [2018-11-07 09:08:05,373 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 09:08:05,538 INFO L415 sIntCurrentIteration]: We unified 313 AI predicates to 313 [2018-11-07 09:08:05,538 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 09:08:05,538 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 09:08:05,539 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2018-11-07 09:08:05,539 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:08:05,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-07 09:08:05,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-07 09:08:05,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-07 09:08:05,540 INFO L87 Difference]: Start difference. First operand 28431 states and 35624 transitions. Second operand 9 states. [2018-11-07 09:09:44,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 09:09:44,237 INFO L93 Difference]: Finished difference Result 57801 states and 72428 transitions. [2018-11-07 09:09:44,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-07 09:09:44,237 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 314 [2018-11-07 09:09:44,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 09:09:44,345 INFO L225 Difference]: With dead ends: 57801 [2018-11-07 09:09:44,346 INFO L226 Difference]: Without dead ends: 29684 [2018-11-07 09:09:44,410 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 319 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2018-11-07 09:09:44,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29684 states. [2018-11-07 09:09:44,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29684 to 29680. [2018-11-07 09:09:44,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29680 states. [2018-11-07 09:09:44,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29680 states to 29680 states and 36972 transitions. [2018-11-07 09:09:44,969 INFO L78 Accepts]: Start accepts. Automaton has 29680 states and 36972 transitions. Word has length 314 [2018-11-07 09:09:44,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 09:09:44,970 INFO L480 AbstractCegarLoop]: Abstraction has 29680 states and 36972 transitions. [2018-11-07 09:09:44,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-07 09:09:44,970 INFO L276 IsEmpty]: Start isEmpty. Operand 29680 states and 36972 transitions. [2018-11-07 09:09:44,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 460 [2018-11-07 09:09:44,995 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 09:09:44,996 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-07 09:09:44,996 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 09:09:44,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:09:44,997 INFO L82 PathProgramCache]: Analyzing trace with hash -26978702, now seen corresponding path program 1 times [2018-11-07 09:09:44,997 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 09:09:44,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:09:44,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 09:09:44,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 09:09:44,998 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 09:09:45,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 09:09:45,432 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 199 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 09:09:45,432 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 09:09:45,432 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 09:09:45,433 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 460 with the following transitions: [2018-11-07 09:09:45,433 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], [333], [335], [338], [346], [354], [362], [370], [378], [386], [394], [402], [410], [418], [426], [434], [442], [450], [458], [466], [474], [482], [490], [498], [506], [514], [522], [530], [538], [546], [554], [562], [567], [571], [582], [586], [590], [594], [598], [602], [606], [610], [614], [618], [622], [626], [630], [641], [645], [649], [653], [657], [668], [672], [676], [680], [684], [688], [692], [696], [707], [711], [715], [719], [723], [727], [731], [735], [739], [743], [747], [751], [755], [759], [763], [767], [771], [775], [779], [783], [787], [798], [809], [813], [824], [835], [839], [842], [845], [849], [850], [854], [865], [869], [873], [877], [881], [885], [896], [900], [904], [908], [912], [916], [920], [924], [935], [939], [943], [947], [951], [955], [959], [963], [967], [971], [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 09:09:45,443 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-07 09:09:45,443 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 09:09:45,771 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 09:09:45,772 INFO L272 AbstractInterpreter]: Visited 296 different actions 585 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 09:09:45,780 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 09:09:45,780 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 09:09:46,230 INFO L227 lantSequenceWeakener]: Weakened 455 states. On average, predicates are now at 80.29% of their original sizes. [2018-11-07 09:09:46,231 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 09:09:46,453 INFO L415 sIntCurrentIteration]: We unified 458 AI predicates to 458 [2018-11-07 09:09:46,454 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 09:09:46,454 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 09:09:46,454 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-11-07 09:09:46,454 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 09:09:46,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-07 09:09:46,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-07 09:09:46,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-11-07 09:09:46,456 INFO L87 Difference]: Start difference. First operand 29680 states and 36972 transitions. Second operand 11 states. Received shutdown request... [2018-11-07 09:10:32,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-07 09:10:32,365 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 09:10:32,371 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 09:10:32,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 09:10:32 BoogieIcfgContainer [2018-11-07 09:10:32,371 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 09:10:32,372 INFO L168 Benchmark]: Toolchain (without parser) took 232155.48 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -703.1 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2018-11-07 09:10:32,373 INFO L168 Benchmark]: CDTParser took 0.26 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 09:10:32,373 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1420.22 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: 108.5 MB). Peak memory consumption was 108.5 MB. Max. memory is 7.1 GB. [2018-11-07 09:10:32,374 INFO L168 Benchmark]: Boogie Procedure Inliner took 212.87 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 705.7 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -851.2 MB). Peak memory consumption was 31.3 MB. Max. memory is 7.1 GB. [2018-11-07 09:10:32,375 INFO L168 Benchmark]: Boogie Preprocessor took 163.24 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. [2018-11-07 09:10:32,376 INFO L168 Benchmark]: RCFGBuilder took 6346.07 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 288.5 MB). Peak memory consumption was 288.5 MB. Max. memory is 7.1 GB. [2018-11-07 09:10:32,377 INFO L168 Benchmark]: TraceAbstraction took 224008.03 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.8 GB in the beginning and 2.1 GB in the end (delta: -263.0 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-11-07 09:10:32,381 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 1420.22 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: 108.5 MB). Peak memory consumption was 108.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 212.87 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 705.7 MB). Free memory was 1.3 GB in the beginning and 2.1 GB in the end (delta: -851.2 MB). Peak memory consumption was 31.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 163.24 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 14.1 MB). Peak memory consumption was 14.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6346.07 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 1.8 GB in the end (delta: 288.5 MB). Peak memory consumption was 288.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 224008.03 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.8 GB in the beginning and 2.1 GB in the end (delta: -263.0 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 121]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 121). Cancelled while BasicCegarLoop was constructing difference of abstraction (29680states) and FLOYD_HOARE automaton (currently 20 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (33963 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 223.9s OverallTime, 10 OverallIterations, 4 TraceHistogramMax, 213.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2888 SDtfs, 12259 SDslu, 2645 SDs, 0 SdLazy, 19910 SolverSat, 3575 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 167.2s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 1059 GetRequests, 986 SyntacticMatches, 4 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29680occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.1s AbstIntTime, 3 AbstIntIterations, 3 AbstIntStrong, 0.9976520541902656 AbsIntWeakeningRatio, 0.08704453441295547 AbsIntAvgWeakeningVarsNumRemoved, 15.396761133603238 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.9s AutomataMinimizationTime, 9 MinimizatonAttempts, 1038 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 2003 NumberOfCodeBlocks, 2003 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1993 ConstructedInterpolants, 0 QuantifiedInterpolants, 1456676 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 7 PerfectInterpolantSequences, 1177/1183 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown