/usr/bin/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/gsv2008.c.i.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-18 16:24:46,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-18 16:24:46,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-18 16:24:46,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-18 16:24:46,176 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-18 16:24:46,178 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-18 16:24:46,179 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-18 16:24:46,181 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-18 16:24:46,183 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-18 16:24:46,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-18 16:24:46,185 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-18 16:24:46,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-18 16:24:46,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 16:24:46,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 16:24:46,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 16:24:46,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 16:24:46,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 16:24:46,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 16:24:46,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 16:24:46,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 16:24:46,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 16:24:46,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 16:24:46,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 16:24:46,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 16:24:46,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-18 16:24:46,202 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-18 16:24:46,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-18 16:24:46,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-18 16:24:46,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-18 16:24:46,204 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-18 16:24:46,204 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-18 16:24:46,205 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-18 16:24:46,206 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-18 16:24:46,207 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-18 16:24:46,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-18 16:24:46,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-18 16:24:46,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-18 16:24:46,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-18 16:24:46,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-18 16:24:46,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-18 16:24:46,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-18 16:24:46,212 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-18 16:24:46,233 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 16:24:46,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 16:24:46,235 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 16:24:46,235 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 16:24:46,235 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 16:24:46,236 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 16:24:46,236 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 16:24:46,236 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 16:24:46,236 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 16:24:46,236 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 16:24:46,237 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 16:24:46,237 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 16:24:46,237 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 16:24:46,237 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 16:24:46,237 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 16:24:46,238 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 16:24:46,238 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 16:24:46,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 16:24:46,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 16:24:46,238 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 16:24:46,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 16:24:46,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 16:24:46,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 16:24:46,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 16:24:46,240 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 16:24:46,240 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 16:24:46,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 16:24:46,240 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 16:24:46,240 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 16:24:46,241 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true [2020-08-18 16:24:46,572 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 16:24:46,595 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 16:24:46,600 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 16:24:46,603 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 16:24:46,603 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 16:24:46,605 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gsv2008.c.i.v+lhb-reducer.c [2020-08-18 16:24:46,682 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f059c83a1/9afaa4201c334e0f8257c87ae5a57d33/FLAG90c813c7b [2020-08-18 16:24:47,164 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 16:24:47,165 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-lit/gsv2008.c.i.v+lhb-reducer.c [2020-08-18 16:24:47,172 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f059c83a1/9afaa4201c334e0f8257c87ae5a57d33/FLAG90c813c7b [2020-08-18 16:24:47,648 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/f059c83a1/9afaa4201c334e0f8257c87ae5a57d33 [2020-08-18 16:24:47,659 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 16:24:47,661 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 16:24:47,662 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 16:24:47,662 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 16:24:47,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 16:24:47,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 04:24:47" (1/1) ... [2020-08-18 16:24:47,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dfcebea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:24:47, skipping insertion in model container [2020-08-18 16:24:47,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 04:24:47" (1/1) ... [2020-08-18 16:24:47,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 16:24:47,699 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 16:24:47,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 16:24:47,878 INFO L203 MainTranslator]: Completed pre-run [2020-08-18 16:24:47,898 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-18 16:24:47,913 INFO L208 MainTranslator]: Completed translation [2020-08-18 16:24:47,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:24:47 WrapperNode [2020-08-18 16:24:47,914 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 16:24:47,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-18 16:24:47,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-18 16:24:47,915 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-18 16:24:47,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:24:47" (1/1) ... [2020-08-18 16:24:47,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:24:47" (1/1) ... [2020-08-18 16:24:48,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:24:47" (1/1) ... [2020-08-18 16:24:48,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:24:47" (1/1) ... [2020-08-18 16:24:48,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:24:47" (1/1) ... [2020-08-18 16:24:48,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:24:47" (1/1) ... [2020-08-18 16:24:48,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:24:47" (1/1) ... [2020-08-18 16:24:48,046 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-18 16:24:48,046 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-18 16:24:48,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-18 16:24:48,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-18 16:24:48,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:24:47" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-08-18 16:24:48,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-18 16:24:48,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-18 16:24:48,123 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-18 16:24:48,123 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-18 16:24:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-18 16:24:48,123 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-18 16:24:48,124 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-18 16:24:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-18 16:24:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-18 16:24:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-18 16:24:48,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-18 16:24:48,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-18 16:24:48,328 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-18 16:24:48,328 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-18 16:24:48,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 04:24:48 BoogieIcfgContainer [2020-08-18 16:24:48,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-18 16:24:48,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-18 16:24:48,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-18 16:24:48,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-18 16:24:48,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.08 04:24:47" (1/3) ... [2020-08-18 16:24:48,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c72c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 04:24:48, skipping insertion in model container [2020-08-18 16:24:48,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 04:24:47" (2/3) ... [2020-08-18 16:24:48,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8c72c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.08 04:24:48, skipping insertion in model container [2020-08-18 16:24:48,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 04:24:48" (3/3) ... [2020-08-18 16:24:48,353 INFO L109 eAbstractionObserver]: Analyzing ICFG gsv2008.c.i.v+lhb-reducer.c [2020-08-18 16:24:48,386 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-18 16:24:48,408 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-18 16:24:48,442 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-18 16:24:48,488 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-18 16:24:48,488 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-18 16:24:48,488 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-18 16:24:48,489 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-18 16:24:48,489 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-18 16:24:48,489 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-18 16:24:48,489 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-18 16:24:48,489 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-18 16:24:48,505 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-08-18 16:24:48,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-08-18 16:24:48,511 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:24:48,512 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 16:24:48,513 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:24:48,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:24:48,520 INFO L82 PathProgramCache]: Analyzing trace with hash 489049782, now seen corresponding path program 1 times [2020-08-18 16:24:48,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:24:48,530 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [798448841] [2020-08-18 16:24:48,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:24:48,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:24:48,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:24:48,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:24:48,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 16:24:48,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [798448841] [2020-08-18 16:24:48,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 16:24:48,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-18 16:24:48,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421260764] [2020-08-18 16:24:48,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-18 16:24:48,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:24:48,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-18 16:24:48,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-18 16:24:48,823 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 6 states. [2020-08-18 16:24:49,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 16:24:49,005 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2020-08-18 16:24:49,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-18 16:24:49,007 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-08-18 16:24:49,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 16:24:49,018 INFO L225 Difference]: With dead ends: 33 [2020-08-18 16:24:49,018 INFO L226 Difference]: Without dead ends: 16 [2020-08-18 16:24:49,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-08-18 16:24:49,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-08-18 16:24:49,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-08-18 16:24:49,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-08-18 16:24:49,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-08-18 16:24:49,065 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2020-08-18 16:24:49,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 16:24:49,066 INFO L479 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-08-18 16:24:49,066 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-18 16:24:49,066 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-08-18 16:24:49,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-08-18 16:24:49,067 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:24:49,067 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 16:24:49,068 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-18 16:24:49,068 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:24:49,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:24:49,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1823317113, now seen corresponding path program 1 times [2020-08-18 16:24:49,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:24:49,069 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2084651286] [2020-08-18 16:24:49,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:24:49,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:24:49,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:24:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:24:49,236 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-18 16:24:49,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2084651286] [2020-08-18 16:24:49,237 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-18 16:24:49,237 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-18 16:24:49,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076000692] [2020-08-18 16:24:49,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-18 16:24:49,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:24:49,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-18 16:24:49,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-18 16:24:49,241 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 7 states. [2020-08-18 16:24:49,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 16:24:49,338 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2020-08-18 16:24:49,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-18 16:24:49,339 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-08-18 16:24:49,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 16:24:49,340 INFO L225 Difference]: With dead ends: 21 [2020-08-18 16:24:49,340 INFO L226 Difference]: Without dead ends: 18 [2020-08-18 16:24:49,341 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-18 16:24:49,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-08-18 16:24:49,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-08-18 16:24:49,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-08-18 16:24:49,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-08-18 16:24:49,347 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2020-08-18 16:24:49,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 16:24:49,347 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-08-18 16:24:49,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-18 16:24:49,348 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-08-18 16:24:49,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-08-18 16:24:49,348 INFO L414 BasicCegarLoop]: Found error trace [2020-08-18 16:24:49,348 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-18 16:24:49,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-18 16:24:49,349 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-18 16:24:49,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-18 16:24:49,350 INFO L82 PathProgramCache]: Analyzing trace with hash -140999300, now seen corresponding path program 2 times [2020-08-18 16:24:49,350 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-18 16:24:49,350 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1504777874] [2020-08-18 16:24:49,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-18 16:24:49,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:24:49,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-18 16:24:49,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-18 16:24:49,442 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-08-18 16:24:49,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1504777874] [2020-08-18 16:24:49,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-18 16:24:49,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-18 16:24:49,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137560177] [2020-08-18 16:24:49,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-18 16:24:49,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-18 16:24:49,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-18 16:24:49,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-18 16:24:49,445 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 5 states. [2020-08-18 16:24:49,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-18 16:24:49,500 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-08-18 16:24:49,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-18 16:24:49,500 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-08-18 16:24:49,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-18 16:24:49,501 INFO L225 Difference]: With dead ends: 18 [2020-08-18 16:24:49,501 INFO L226 Difference]: Without dead ends: 0 [2020-08-18 16:24:49,503 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-18 16:24:49,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-18 16:24:49,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-18 16:24:49,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-18 16:24:49,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-18 16:24:49,505 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-08-18 16:24:49,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-18 16:24:49,505 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-18 16:24:49,506 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-18 16:24:49,507 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-18 16:24:49,507 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-18 16:24:49,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-18 16:24:49,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-18 16:24:49,576 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-18 16:24:49,577 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__tmp_55_0~0 |old(~__tmp_55_0~0)|) (= ~__return_main~0 |old(~__return_main~0)|) (= ~__return_65~0 |old(~__return_65~0)|)) [2020-08-18 16:24:49,577 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-18 16:24:49,577 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-18 16:24:49,577 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-18 16:24:49,577 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-18 16:24:49,578 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-18 16:24:49,578 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-08-18 16:24:49,578 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-08-18 16:24:49,578 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 6) no Hoare annotation was computed. [2020-08-18 16:24:49,578 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-08-18 16:24:49,579 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 55) no Hoare annotation was computed. [2020-08-18 16:24:49,579 INFO L268 CegarLoopResult]: For program point L30(lines 30 69) no Hoare annotation was computed. [2020-08-18 16:24:49,579 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 12 72) the Hoare annotation is: (and (= ~__tmp_55_0~0 |old(~__tmp_55_0~0)|) (= |old(~__return_65~0)| ~__return_65~0)) [2020-08-18 16:24:49,579 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 12 72) no Hoare annotation was computed. [2020-08-18 16:24:49,579 INFO L268 CegarLoopResult]: For program point L24(lines 24 70) no Hoare annotation was computed. [2020-08-18 16:24:49,580 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-08-18 16:24:49,580 INFO L268 CegarLoopResult]: For program point L53(lines 53 62) no Hoare annotation was computed. [2020-08-18 16:24:49,580 INFO L268 CegarLoopResult]: For program point L18(lines 18 71) no Hoare annotation was computed. [2020-08-18 16:24:49,580 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 12 72) no Hoare annotation was computed. [2020-08-18 16:24:49,580 INFO L264 CegarLoopResult]: At program point L44(lines 31 65) the Hoare annotation is: (<= (+ main_~main__x~0 2) main_~main__y~0) [2020-08-18 16:24:49,581 INFO L268 CegarLoopResult]: For program point L38(lines 38 64) no Hoare annotation was computed. [2020-08-18 16:24:49,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.08 04:24:49 BoogieIcfgContainer [2020-08-18 16:24:49,598 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-18 16:24:49,602 INFO L168 Benchmark]: Toolchain (without parser) took 1939.82 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 101.2 MB in the beginning and 93.8 MB in the end (delta: 7.4 MB). Peak memory consumption was 70.3 MB. Max. memory is 7.1 GB. [2020-08-18 16:24:49,603 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-18 16:24:49,604 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.18 ms. Allocated memory is still 137.9 MB. Free memory was 101.0 MB in the beginning and 91.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-08-18 16:24:49,605 INFO L168 Benchmark]: Boogie Preprocessor took 131.29 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 91.1 MB in the beginning and 178.7 MB in the end (delta: -87.7 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. [2020-08-18 16:24:49,606 INFO L168 Benchmark]: RCFGBuilder took 289.40 ms. Allocated memory is still 200.8 MB. Free memory was 178.7 MB in the beginning and 166.5 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2020-08-18 16:24:49,607 INFO L168 Benchmark]: TraceAbstraction took 1261.62 ms. Allocated memory is still 200.8 MB. Free memory was 165.8 MB in the beginning and 93.8 MB in the end (delta: 72.0 MB). Peak memory consumption was 72.0 MB. Max. memory is 7.1 GB. [2020-08-18 16:24:49,611 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory was 119.4 MB in the beginning and 119.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 252.18 ms. Allocated memory is still 137.9 MB. Free memory was 101.0 MB in the beginning and 91.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 131.29 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 91.1 MB in the beginning and 178.7 MB in the end (delta: -87.7 MB). Peak memory consumption was 12.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 289.40 ms. Allocated memory is still 200.8 MB. Free memory was 178.7 MB in the beginning and 166.5 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1261.62 ms. Allocated memory is still 200.8 MB. Free memory was 165.8 MB in the beginning and 93.8 MB in the end (delta: 72.0 MB). Peak memory consumption was 72.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 55]: 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: 31]: Loop Invariant Derived loop invariant: main__x + 2 <= main__y - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 40 SDtfs, 24 SDslu, 90 SDs, 0 SdLazy, 91 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 7 NumberOfFragments, 24 HoareAnnotationTreeSize, 5 FomulaSimplifications, 25 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 1916 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 6/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...