java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1a.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 16:18:08,319 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 16:18:08,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 16:18:08,339 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 16:18:08,339 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 16:18:08,340 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 16:18:08,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 16:18:08,350 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 16:18:08,353 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 16:18:08,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 16:18:08,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 16:18:08,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 16:18:08,359 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 16:18:08,360 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 16:18:08,361 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 16:18:08,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 16:18:08,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 16:18:08,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 16:18:08,370 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 16:18:08,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 16:18:08,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 16:18:08,378 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 16:18:08,381 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 16:18:08,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 16:18:08,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-16 16:18:08,390 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 16:18:08,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 16:18:08,393 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 16:18:08,394 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 16:18:08,398 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 16:18:08,398 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 16:18:08,399 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 16:18:08,399 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 16:18:08,399 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 16:18:08,400 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 16:18:08,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 16:18:08,403 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-16 16:18:08,417 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 16:18:08,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 16:18:08,419 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-16 16:18:08,419 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-16 16:18:08,419 INFO L138 SettingsManager]: * Use SBE=true [2019-09-16 16:18:08,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 16:18:08,420 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 16:18:08,420 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-16 16:18:08,420 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 16:18:08,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 16:18:08,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 16:18:08,421 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 16:18:08,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 16:18:08,422 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 16:18:08,422 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 16:18:08,423 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-16 16:18:08,423 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 16:18:08,423 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 16:18:08,423 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 16:18:08,424 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-16 16:18:08,424 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-16 16:18:08,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 16:18:08,424 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 16:18:08,425 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 16:18:08,425 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-16 16:18:08,425 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-16 16:18:08,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 16:18:08,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-16 16:18:08,426 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 16:18:08,470 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 16:18:08,480 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 16:18:08,483 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 16:18:08,484 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 16:18:08,484 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 16:18:08,485 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1a.cil.c [2019-09-16 16:18:08,540 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e095c35fc/a5ea1327e40849ed8229bea0468c45ac/FLAGa049dbd22 [2019-09-16 16:18:08,991 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 16:18:08,993 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ssh-simplified/s3_srvr_1a.cil.c [2019-09-16 16:18:09,003 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e095c35fc/a5ea1327e40849ed8229bea0468c45ac/FLAGa049dbd22 [2019-09-16 16:18:09,365 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e095c35fc/a5ea1327e40849ed8229bea0468c45ac [2019-09-16 16:18:09,373 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 16:18:09,375 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 16:18:09,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 16:18:09,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 16:18:09,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 16:18:09,380 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 04:18:09" (1/1) ... [2019-09-16 16:18:09,382 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@364b8c2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:18:09, skipping insertion in model container [2019-09-16 16:18:09,382 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 04:18:09" (1/1) ... [2019-09-16 16:18:09,388 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 16:18:09,414 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 16:18:09,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 16:18:09,625 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 16:18:09,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 16:18:09,759 INFO L192 MainTranslator]: Completed translation [2019-09-16 16:18:09,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:18:09 WrapperNode [2019-09-16 16:18:09,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 16:18:09,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 16:18:09,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 16:18:09,761 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 16:18:09,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:18:09" (1/1) ... [2019-09-16 16:18:09,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:18:09" (1/1) ... [2019-09-16 16:18:09,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:18:09" (1/1) ... [2019-09-16 16:18:09,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:18:09" (1/1) ... [2019-09-16 16:18:09,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:18:09" (1/1) ... [2019-09-16 16:18:09,789 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:18:09" (1/1) ... [2019-09-16 16:18:09,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:18:09" (1/1) ... [2019-09-16 16:18:09,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 16:18:09,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 16:18:09,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 16:18:09,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 16:18:09,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:18:09" (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 [2019-09-16 16:18:09,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 16:18:09,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 16:18:09,846 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 16:18:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 16:18:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-16 16:18:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 16:18:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2019-09-16 16:18:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_pointer [2019-09-16 16:18:09,846 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 16:18:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 16:18:09,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 16:18:10,171 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 16:18:10,171 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-16 16:18:10,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 04:18:10 BoogieIcfgContainer [2019-09-16 16:18:10,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 16:18:10,180 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 16:18:10,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 16:18:10,189 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 16:18:10,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 04:18:09" (1/3) ... [2019-09-16 16:18:10,190 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69dae53b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 04:18:10, skipping insertion in model container [2019-09-16 16:18:10,190 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:18:09" (2/3) ... [2019-09-16 16:18:10,191 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69dae53b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 04:18:10, skipping insertion in model container [2019-09-16 16:18:10,191 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 04:18:10" (3/3) ... [2019-09-16 16:18:10,195 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a.cil.c [2019-09-16 16:18:10,213 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 16:18:10,227 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 16:18:10,241 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 16:18:10,269 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-16 16:18:10,269 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 16:18:10,269 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-16 16:18:10,270 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 16:18:10,270 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 16:18:10,270 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 16:18:10,270 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 16:18:10,270 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 16:18:10,270 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 16:18:10,286 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2019-09-16 16:18:10,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-09-16 16:18:10,290 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:18:10,290 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:18:10,292 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:18:10,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:18:10,297 INFO L82 PathProgramCache]: Analyzing trace with hash 2008919768, now seen corresponding path program 1 times [2019-09-16 16:18:10,298 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:18:10,299 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:18:10,341 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:18:10,342 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:18:10,342 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:18:10,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:18:10,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 16:18:10,428 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 16:18:10,428 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 16:18:10,431 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 16:18:10,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 16:18:10,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 16:18:10,443 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 3 states. [2019-09-16 16:18:10,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 16:18:10,571 INFO L93 Difference]: Finished difference Result 136 states and 224 transitions. [2019-09-16 16:18:10,572 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 16:18:10,573 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-09-16 16:18:10,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 16:18:10,589 INFO L225 Difference]: With dead ends: 136 [2019-09-16 16:18:10,589 INFO L226 Difference]: Without dead ends: 83 [2019-09-16 16:18:10,595 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 16:18:10,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2019-09-16 16:18:10,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2019-09-16 16:18:10,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2019-09-16 16:18:10,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 126 transitions. [2019-09-16 16:18:10,644 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 126 transitions. Word has length 8 [2019-09-16 16:18:10,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 16:18:10,644 INFO L475 AbstractCegarLoop]: Abstraction has 83 states and 126 transitions. [2019-09-16 16:18:10,644 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 16:18:10,645 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 126 transitions. [2019-09-16 16:18:10,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-16 16:18:10,646 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:18:10,646 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:18:10,647 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:18:10,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:18:10,647 INFO L82 PathProgramCache]: Analyzing trace with hash 2066454160, now seen corresponding path program 1 times [2019-09-16 16:18:10,648 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:18:10,648 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:18:10,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:18:10,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:18:10,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:18:10,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:18:10,686 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 16:18:10,687 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 16:18:10,687 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 16:18:10,688 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 16:18:10,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 16:18:10,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 16:18:10,689 INFO L87 Difference]: Start difference. First operand 83 states and 126 transitions. Second operand 3 states. [2019-09-16 16:18:10,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 16:18:10,794 INFO L93 Difference]: Finished difference Result 161 states and 253 transitions. [2019-09-16 16:18:10,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 16:18:10,797 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-09-16 16:18:10,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 16:18:10,800 INFO L225 Difference]: With dead ends: 161 [2019-09-16 16:18:10,801 INFO L226 Difference]: Without dead ends: 121 [2019-09-16 16:18:10,803 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 16:18:10,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2019-09-16 16:18:10,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2019-09-16 16:18:10,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2019-09-16 16:18:10,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 184 transitions. [2019-09-16 16:18:10,842 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 184 transitions. Word has length 13 [2019-09-16 16:18:10,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 16:18:10,843 INFO L475 AbstractCegarLoop]: Abstraction has 121 states and 184 transitions. [2019-09-16 16:18:10,843 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 16:18:10,843 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 184 transitions. [2019-09-16 16:18:10,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-09-16 16:18:10,844 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:18:10,844 INFO L407 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:18:10,845 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:18:10,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:18:10,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1216248382, now seen corresponding path program 1 times [2019-09-16 16:18:10,846 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:18:10,847 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:18:10,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:18:10,848 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:18:10,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:18:10,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:18:10,915 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-16 16:18:10,915 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 16:18:10,915 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 16:18:10,916 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 16:18:10,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 16:18:10,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 16:18:10,917 INFO L87 Difference]: Start difference. First operand 121 states and 184 transitions. Second operand 3 states. [2019-09-16 16:18:11,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 16:18:11,023 INFO L93 Difference]: Finished difference Result 237 states and 369 transitions. [2019-09-16 16:18:11,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 16:18:11,024 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-09-16 16:18:11,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 16:18:11,026 INFO L225 Difference]: With dead ends: 237 [2019-09-16 16:18:11,026 INFO L226 Difference]: Without dead ends: 159 [2019-09-16 16:18:11,031 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 16:18:11,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2019-09-16 16:18:11,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2019-09-16 16:18:11,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-09-16 16:18:11,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 243 transitions. [2019-09-16 16:18:11,050 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 243 transitions. Word has length 19 [2019-09-16 16:18:11,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 16:18:11,051 INFO L475 AbstractCegarLoop]: Abstraction has 159 states and 243 transitions. [2019-09-16 16:18:11,051 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 16:18:11,051 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 243 transitions. [2019-09-16 16:18:11,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-09-16 16:18:11,053 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:18:11,053 INFO L407 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:18:11,053 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:18:11,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:18:11,054 INFO L82 PathProgramCache]: Analyzing trace with hash -1623728883, now seen corresponding path program 1 times [2019-09-16 16:18:11,054 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:18:11,054 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:18:11,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:18:11,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:18:11,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:18:11,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:18:11,094 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-16 16:18:11,094 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 16:18:11,094 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 16:18:11,095 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 16:18:11,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 16:18:11,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 16:18:11,095 INFO L87 Difference]: Start difference. First operand 159 states and 243 transitions. Second operand 3 states. [2019-09-16 16:18:11,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 16:18:11,245 INFO L93 Difference]: Finished difference Result 371 states and 583 transitions. [2019-09-16 16:18:11,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 16:18:11,247 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2019-09-16 16:18:11,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 16:18:11,249 INFO L225 Difference]: With dead ends: 371 [2019-09-16 16:18:11,249 INFO L226 Difference]: Without dead ends: 217 [2019-09-16 16:18:11,251 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 16:18:11,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2019-09-16 16:18:11,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 211. [2019-09-16 16:18:11,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2019-09-16 16:18:11,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 295 transitions. [2019-09-16 16:18:11,271 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 295 transitions. Word has length 34 [2019-09-16 16:18:11,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 16:18:11,272 INFO L475 AbstractCegarLoop]: Abstraction has 211 states and 295 transitions. [2019-09-16 16:18:11,272 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 16:18:11,272 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 295 transitions. [2019-09-16 16:18:11,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-09-16 16:18:11,275 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:18:11,275 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 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] [2019-09-16 16:18:11,275 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:18:11,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:18:11,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1694730092, now seen corresponding path program 1 times [2019-09-16 16:18:11,276 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:18:11,276 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:18:11,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:18:11,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:18:11,278 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:18:11,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:18:11,359 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-16 16:18:11,360 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 16:18:11,360 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 16:18:11,361 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 16:18:11,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 16:18:11,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 16:18:11,362 INFO L87 Difference]: Start difference. First operand 211 states and 295 transitions. Second operand 3 states. [2019-09-16 16:18:11,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 16:18:11,421 INFO L93 Difference]: Finished difference Result 419 states and 592 transitions. [2019-09-16 16:18:11,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 16:18:11,421 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2019-09-16 16:18:11,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 16:18:11,423 INFO L225 Difference]: With dead ends: 419 [2019-09-16 16:18:11,423 INFO L226 Difference]: Without dead ends: 264 [2019-09-16 16:18:11,424 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 16:18:11,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2019-09-16 16:18:11,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 262. [2019-09-16 16:18:11,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2019-09-16 16:18:11,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 369 transitions. [2019-09-16 16:18:11,442 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 369 transitions. Word has length 48 [2019-09-16 16:18:11,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 16:18:11,442 INFO L475 AbstractCegarLoop]: Abstraction has 262 states and 369 transitions. [2019-09-16 16:18:11,442 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 16:18:11,442 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 369 transitions. [2019-09-16 16:18:11,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-16 16:18:11,445 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:18:11,445 INFO L407 BasicCegarLoop]: trace histogram [5, 4, 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, 1, 1] [2019-09-16 16:18:11,445 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:18:11,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:18:11,446 INFO L82 PathProgramCache]: Analyzing trace with hash 365198397, now seen corresponding path program 1 times [2019-09-16 16:18:11,446 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:18:11,446 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:18:11,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:18:11,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:18:11,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:18:11,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:18:11,494 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-09-16 16:18:11,494 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 16:18:11,494 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 16:18:11,495 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 16:18:11,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 16:18:11,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 16:18:11,495 INFO L87 Difference]: Start difference. First operand 262 states and 369 transitions. Second operand 3 states. [2019-09-16 16:18:11,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 16:18:11,593 INFO L93 Difference]: Finished difference Result 527 states and 756 transitions. [2019-09-16 16:18:11,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 16:18:11,594 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2019-09-16 16:18:11,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 16:18:11,596 INFO L225 Difference]: With dead ends: 527 [2019-09-16 16:18:11,596 INFO L226 Difference]: Without dead ends: 192 [2019-09-16 16:18:11,597 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 16:18:11,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2019-09-16 16:18:11,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 189. [2019-09-16 16:18:11,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2019-09-16 16:18:11,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 248 transitions. [2019-09-16 16:18:11,607 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 248 transitions. Word has length 51 [2019-09-16 16:18:11,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 16:18:11,608 INFO L475 AbstractCegarLoop]: Abstraction has 189 states and 248 transitions. [2019-09-16 16:18:11,608 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 16:18:11,608 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 248 transitions. [2019-09-16 16:18:11,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-09-16 16:18:11,612 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:18:11,612 INFO L407 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:18:11,612 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:18:11,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:18:11,613 INFO L82 PathProgramCache]: Analyzing trace with hash 1939547864, now seen corresponding path program 1 times [2019-09-16 16:18:11,613 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:18:11,613 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:18:11,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:18:11,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:18:11,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:18:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:18:11,671 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-09-16 16:18:11,671 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 16:18:11,672 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 16:18:11,675 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 16:18:11,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 16:18:11,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 16:18:11,676 INFO L87 Difference]: Start difference. First operand 189 states and 248 transitions. Second operand 3 states. [2019-09-16 16:18:11,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 16:18:11,698 INFO L93 Difference]: Finished difference Result 310 states and 379 transitions. [2019-09-16 16:18:11,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 16:18:11,698 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2019-09-16 16:18:11,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 16:18:11,699 INFO L225 Difference]: With dead ends: 310 [2019-09-16 16:18:11,699 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 16:18:11,700 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 16:18:11,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 16:18:11,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 16:18:11,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 16:18:11,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 16:18:11,701 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 79 [2019-09-16 16:18:11,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 16:18:11,701 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 16:18:11,701 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 16:18:11,701 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 16:18:11,701 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 16:18:11,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-16 16:18:11,938 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-09-16 16:18:11,938 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-16 16:18:11,938 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-16 16:18:11,938 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-16 16:18:11,939 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-16 16:18:11,939 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-16 16:18:11,939 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 9 218) no Hoare annotation was computed. [2019-09-16 16:18:11,939 INFO L443 ceAbstractionStarter]: For program point L69(lines 69 186) no Hoare annotation was computed. [2019-09-16 16:18:11,939 INFO L443 ceAbstractionStarter]: For program point L61(lines 61 190) no Hoare annotation was computed. [2019-09-16 16:18:11,939 INFO L443 ceAbstractionStarter]: For program point L152-1(lines 75 184) no Hoare annotation was computed. [2019-09-16 16:18:11,939 INFO L443 ceAbstractionStarter]: For program point L53(lines 53 194) no Hoare annotation was computed. [2019-09-16 16:18:11,939 INFO L443 ceAbstractionStarter]: For program point L86-1(lines 75 184) no Hoare annotation was computed. [2019-09-16 16:18:11,940 INFO L439 ceAbstractionStarter]: At program point L177(lines 23 212) the Hoare annotation is: (let ((.cse0 (<= main_~blastFlag~0 3))) (or (and (<= 8640 main_~s__state~0) .cse0 (not (= 0 main_~s__hit~0))) (<= main_~blastFlag~0 2) (and .cse0 (<= 8672 main_~s__state~0)))) [2019-09-16 16:18:11,940 INFO L443 ceAbstractionStarter]: For program point L45(lines 45 198) no Hoare annotation was computed. [2019-09-16 16:18:11,940 INFO L443 ceAbstractionStarter]: For program point L136(lines 136 140) no Hoare annotation was computed. [2019-09-16 16:18:11,940 INFO L439 ceAbstractionStarter]: At program point L70(lines 69 186) the Hoare annotation is: (let ((.cse0 (<= 8640 main_~s__state~0))) (or (and .cse0 (<= main_~blastFlag~0 3) (not (= 0 main_~s__hit~0))) (and .cse0 (<= main_~blastFlag~0 2)))) [2019-09-16 16:18:11,940 INFO L443 ceAbstractionStarter]: For program point L37(lines 37 202) no Hoare annotation was computed. [2019-09-16 16:18:11,940 INFO L439 ceAbstractionStarter]: At program point L62(lines 61 190) the Hoare annotation is: (<= main_~blastFlag~0 2) [2019-09-16 16:18:11,941 INFO L439 ceAbstractionStarter]: At program point L54(lines 53 194) the Hoare annotation is: (<= main_~blastFlag~0 2) [2019-09-16 16:18:11,941 INFO L439 ceAbstractionStarter]: At program point L46(lines 45 198) the Hoare annotation is: (<= main_~blastFlag~0 2) [2019-09-16 16:18:11,941 INFO L443 ceAbstractionStarter]: For program point L79-1(lines 79 81) no Hoare annotation was computed. [2019-09-16 16:18:11,941 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 9 218) no Hoare annotation was computed. [2019-09-16 16:18:11,941 INFO L443 ceAbstractionStarter]: For program point L170-1(lines 75 184) no Hoare annotation was computed. [2019-09-16 16:18:11,941 INFO L439 ceAbstractionStarter]: At program point L38(lines 37 202) the Hoare annotation is: (<= main_~blastFlag~0 2) [2019-09-16 16:18:11,942 INFO L443 ceAbstractionStarter]: For program point L30(lines 30 205) no Hoare annotation was computed. [2019-09-16 16:18:11,942 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 9 218) the Hoare annotation is: true [2019-09-16 16:18:11,942 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 216) no Hoare annotation was computed. [2019-09-16 16:18:11,942 INFO L439 ceAbstractionStarter]: At program point L121(lines 114 123) the Hoare annotation is: (<= main_~blastFlag~0 2) [2019-09-16 16:18:11,942 INFO L439 ceAbstractionStarter]: At program point L113(lines 106 124) the Hoare annotation is: (<= main_~blastFlag~0 2) [2019-09-16 16:18:11,942 INFO L443 ceAbstractionStarter]: For program point L163-1(lines 163 165) no Hoare annotation was computed. [2019-09-16 16:18:11,943 INFO L439 ceAbstractionStarter]: At program point L31(lines 30 205) the Hoare annotation is: (<= main_~blastFlag~0 2) [2019-09-16 16:18:11,943 INFO L443 ceAbstractionStarter]: For program point L106(lines 106 124) no Hoare annotation was computed. [2019-09-16 16:18:11,943 INFO L443 ceAbstractionStarter]: For program point L73(lines 73 184) no Hoare annotation was computed. [2019-09-16 16:18:11,943 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 188) no Hoare annotation was computed. [2019-09-16 16:18:11,943 INFO L443 ceAbstractionStarter]: For program point L57(lines 57 192) no Hoare annotation was computed. [2019-09-16 16:18:11,943 INFO L443 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2019-09-16 16:18:11,943 INFO L446 ceAbstractionStarter]: At program point L214(lines 9 218) the Hoare annotation is: true [2019-09-16 16:18:11,944 INFO L443 ceAbstractionStarter]: For program point L115(lines 115 119) no Hoare annotation was computed. [2019-09-16 16:18:11,944 INFO L443 ceAbstractionStarter]: For program point L49(lines 49 196) no Hoare annotation was computed. [2019-09-16 16:18:11,944 INFO L443 ceAbstractionStarter]: For program point L173(lines 173 175) no Hoare annotation was computed. [2019-09-16 16:18:11,944 INFO L443 ceAbstractionStarter]: For program point L107(lines 107 111) no Hoare annotation was computed. [2019-09-16 16:18:11,944 INFO L439 ceAbstractionStarter]: At program point L74(lines 73 184) the Hoare annotation is: (and (<= main_~blastFlag~0 3) (<= 8672 main_~s__state~0)) [2019-09-16 16:18:11,944 INFO L443 ceAbstractionStarter]: For program point L41(lines 41 200) no Hoare annotation was computed. [2019-09-16 16:18:11,944 INFO L439 ceAbstractionStarter]: At program point L66(lines 65 188) the Hoare annotation is: (let ((.cse0 (<= 8640 main_~s__state~0))) (or (and .cse0 (<= main_~blastFlag~0 3) (not (= 0 main_~s__hit~0))) (and .cse0 (<= main_~blastFlag~0 2)))) [2019-09-16 16:18:11,945 INFO L443 ceAbstractionStarter]: For program point L33(lines 33 204) no Hoare annotation was computed. [2019-09-16 16:18:11,945 INFO L439 ceAbstractionStarter]: At program point L58(lines 57 192) the Hoare annotation is: (<= main_~blastFlag~0 2) [2019-09-16 16:18:11,945 INFO L439 ceAbstractionStarter]: At program point L50(lines 49 196) the Hoare annotation is: (<= main_~blastFlag~0 2) [2019-09-16 16:18:11,945 INFO L439 ceAbstractionStarter]: At program point L174(lines 9 218) the Hoare annotation is: false [2019-09-16 16:18:11,945 INFO L439 ceAbstractionStarter]: At program point L42(lines 41 200) the Hoare annotation is: (<= main_~blastFlag~0 2) [2019-09-16 16:18:11,945 INFO L439 ceAbstractionStarter]: At program point L34(lines 33 204) the Hoare annotation is: (<= main_~blastFlag~0 2) [2019-09-16 16:18:11,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 04:18:11 BoogieIcfgContainer [2019-09-16 16:18:11,973 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 16:18:11,976 INFO L168 Benchmark]: Toolchain (without parser) took 2599.80 ms. Allocated memory was 132.1 MB in the beginning and 221.2 MB in the end (delta: 89.1 MB). Free memory was 87.6 MB in the beginning and 109.9 MB in the end (delta: -22.3 MB). Peak memory consumption was 66.8 MB. Max. memory is 7.1 GB. [2019-09-16 16:18:11,977 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 132.1 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 16:18:11,980 INFO L168 Benchmark]: CACSL2BoogieTranslator took 384.38 ms. Allocated memory was 132.1 MB in the beginning and 198.2 MB in the end (delta: 66.1 MB). Free memory was 87.4 MB in the beginning and 175.0 MB in the end (delta: -87.6 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2019-09-16 16:18:11,982 INFO L168 Benchmark]: Boogie Preprocessor took 31.81 ms. Allocated memory is still 198.2 MB. Free memory was 175.0 MB in the beginning and 173.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-09-16 16:18:11,983 INFO L168 Benchmark]: RCFGBuilder took 380.23 ms. Allocated memory is still 198.2 MB. Free memory was 172.7 MB in the beginning and 154.3 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. [2019-09-16 16:18:11,984 INFO L168 Benchmark]: TraceAbstraction took 1792.64 ms. Allocated memory was 198.2 MB in the beginning and 221.2 MB in the end (delta: 23.1 MB). Free memory was 153.6 MB in the beginning and 109.9 MB in the end (delta: 43.8 MB). Peak memory consumption was 66.8 MB. Max. memory is 7.1 GB. [2019-09-16 16:18:11,995 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 132.1 MB. Free memory was 106.1 MB in the beginning and 105.9 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 384.38 ms. Allocated memory was 132.1 MB in the beginning and 198.2 MB in the end (delta: 66.1 MB). Free memory was 87.4 MB in the beginning and 175.0 MB in the end (delta: -87.6 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.81 ms. Allocated memory is still 198.2 MB. Free memory was 175.0 MB in the beginning and 173.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 380.23 ms. Allocated memory is still 198.2 MB. Free memory was 172.7 MB in the beginning and 154.3 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1792.64 ms. Allocated memory was 198.2 MB in the beginning and 221.2 MB in the end (delta: 23.1 MB). Free memory was 153.6 MB in the beginning and 109.9 MB in the end (delta: 43.8 MB). Peak memory consumption was 66.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 216]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: ((8640 <= s__state && blastFlag <= 3) && !(0 == s__hit)) || (8640 <= s__state && blastFlag <= 2) - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 114]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: ((8640 <= s__state && blastFlag <= 3) && !(0 == s__hit)) || (8640 <= s__state && blastFlag <= 2) - InvariantResult [Line: 106]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((8640 <= s__state && blastFlag <= 3) && !(0 == s__hit)) || blastFlag <= 2) || (blastFlag <= 3 && 8672 <= s__state) - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: blastFlag <= 3 && 8672 <= s__state - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 50 locations, 1 error locations. SAFE Result, 1.6s OverallTime, 7 OverallIterations, 6 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 457 SDtfs, 250 SDslu, 321 SDs, 0 SdLazy, 196 SolverSat, 51 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=262occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 11 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 21 PreInvPairs, 86 NumberOfFragments, 106 HoareAnnotationTreeSize, 21 FomulaSimplifications, 585 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FomulaSimplificationsInter, 60 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 252 NumberOfCodeBlocks, 252 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 245 ConstructedInterpolants, 0 QuantifiedInterpolants, 25301 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 202/202 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...