/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 --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=HIGHLEXORDER --traceabstraction.additional.smt.options log-additional-information=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 0.1.25-177f698 [2020-08-21 19:05:08,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 19:05:08,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 19:05:08,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 19:05:08,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 19:05:08,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 19:05:08,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 19:05:08,369 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 19:05:08,370 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 19:05:08,371 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 19:05:08,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 19:05:08,374 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 19:05:08,374 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 19:05:08,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 19:05:08,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 19:05:08,377 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 19:05:08,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 19:05:08,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 19:05:08,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 19:05:08,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 19:05:08,384 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 19:05:08,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 19:05:08,386 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 19:05:08,387 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 19:05:08,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-21 19:05:08,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-21 19:05:08,390 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-21 19:05:08,391 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-21 19:05:08,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-21 19:05:08,392 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-08-21 19:05:08,397 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 19:05:08,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 19:05:08,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 19:05:08,400 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 [2020-08-21 19:05:08,431 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 19:05:08,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 19:05:08,435 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 19:05:08,435 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 19:05:08,435 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 19:05:08,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 19:05:08,436 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 19:05:08,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 19:05:08,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 19:05:08,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 19:05:08,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 19:05:08,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 19:05:08,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 19:05:08,439 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 19:05:08,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 19:05:08,439 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 19:05:08,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 19:05:08,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 19:05:08,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 19:05:08,440 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 19:05:08,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 19:05:08,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 19:05:08,442 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 19:05:08,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 19:05:08,442 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 19:05:08,443 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 19:05:08,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 19:05:08,443 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 19:05:08,443 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 19:05:08,443 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 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5000;interpolation-heuristic=HIGHLEXORDER;log-additional-information=true; [2020-08-21 19:05:08,759 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 19:05:08,772 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 19:05:08,778 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 19:05:08,780 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 19:05:08,780 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 19:05:08,781 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gsv2008.c.i.v+lhb-reducer.c [2020-08-21 19:05:08,853 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5d6de744b/d2d1a8d1d4c84e7dbde5822d12cc1417/FLAG42e98aa62 [2020-08-21 19:05:09,324 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 19:05:09,324 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-lit/gsv2008.c.i.v+lhb-reducer.c [2020-08-21 19:05:09,332 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5d6de744b/d2d1a8d1d4c84e7dbde5822d12cc1417/FLAG42e98aa62 [2020-08-21 19:05:09,735 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5d6de744b/d2d1a8d1d4c84e7dbde5822d12cc1417 [2020-08-21 19:05:09,744 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 19:05:09,746 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 19:05:09,747 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 19:05:09,747 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 19:05:09,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 19:05:09,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 07:05:09" (1/1) ... [2020-08-21 19:05:09,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4576fe6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:05:09, skipping insertion in model container [2020-08-21 19:05:09,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 07:05:09" (1/1) ... [2020-08-21 19:05:09,764 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 19:05:09,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 19:05:09,956 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 19:05:09,960 INFO L203 MainTranslator]: Completed pre-run [2020-08-21 19:05:09,978 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-21 19:05:09,991 INFO L208 MainTranslator]: Completed translation [2020-08-21 19:05:09,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:05:09 WrapperNode [2020-08-21 19:05:09,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 19:05:09,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-21 19:05:09,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-21 19:05:09,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-21 19:05:10,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:05:09" (1/1) ... [2020-08-21 19:05:10,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:05:09" (1/1) ... [2020-08-21 19:05:10,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:05:09" (1/1) ... [2020-08-21 19:05:10,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:05:09" (1/1) ... [2020-08-21 19:05:10,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:05:09" (1/1) ... [2020-08-21 19:05:10,108 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:05:09" (1/1) ... [2020-08-21 19:05:10,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:05:09" (1/1) ... [2020-08-21 19:05:10,111 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-21 19:05:10,111 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-21 19:05:10,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-21 19:05:10,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-21 19:05:10,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:05:09" (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 [2020-08-21 19:05:10,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-21 19:05:10,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-21 19:05:10,176 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-21 19:05:10,177 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-21 19:05:10,177 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-21 19:05:10,177 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-21 19:05:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-21 19:05:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-21 19:05:10,178 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-21 19:05:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-21 19:05:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-21 19:05:10,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-21 19:05:10,387 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-21 19:05:10,387 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-21 19:05:10,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:05:10 BoogieIcfgContainer [2020-08-21 19:05:10,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-21 19:05:10,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-21 19:05:10,393 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-21 19:05:10,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-21 19:05:10,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.08 07:05:09" (1/3) ... [2020-08-21 19:05:10,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d5b9c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 07:05:10, skipping insertion in model container [2020-08-21 19:05:10,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 07:05:09" (2/3) ... [2020-08-21 19:05:10,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d5b9c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 07:05:10, skipping insertion in model container [2020-08-21 19:05:10,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:05:10" (3/3) ... [2020-08-21 19:05:10,400 INFO L109 eAbstractionObserver]: Analyzing ICFG gsv2008.c.i.v+lhb-reducer.c [2020-08-21 19:05:10,411 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-21 19:05:10,417 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-21 19:05:10,429 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-21 19:05:10,453 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-21 19:05:10,453 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-21 19:05:10,453 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-21 19:05:10,453 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-21 19:05:10,453 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-21 19:05:10,454 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-21 19:05:10,454 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-21 19:05:10,454 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-21 19:05:10,470 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-08-21 19:05:10,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-08-21 19:05:10,475 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:05:10,476 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:05:10,476 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:05:10,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:05:10,483 INFO L82 PathProgramCache]: Analyzing trace with hash 489049782, now seen corresponding path program 1 times [2020-08-21 19:05:10,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:05:10,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1821395831] [2020-08-21 19:05:10,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:05:10,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:05:10,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:05:10,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:05:10,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:05:10,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1821395831] [2020-08-21 19:05:10,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:05:10,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-08-21 19:05:10,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509460489] [2020-08-21 19:05:10,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-21 19:05:10,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:05:10,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-21 19:05:10,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-08-21 19:05:10,828 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 6 states. [2020-08-21 19:05:11,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:05:11,018 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2020-08-21 19:05:11,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-21 19:05:11,020 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-08-21 19:05:11,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:05:11,030 INFO L225 Difference]: With dead ends: 33 [2020-08-21 19:05:11,031 INFO L226 Difference]: Without dead ends: 16 [2020-08-21 19:05:11,034 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 [2020-08-21 19:05:11,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-08-21 19:05:11,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-08-21 19:05:11,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-08-21 19:05:11,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-08-21 19:05:11,068 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2020-08-21 19:05:11,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:05:11,068 INFO L479 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-08-21 19:05:11,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-21 19:05:11,069 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-08-21 19:05:11,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-08-21 19:05:11,069 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:05:11,069 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:05:11,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-21 19:05:11,070 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:05:11,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:05:11,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1823317113, now seen corresponding path program 1 times [2020-08-21 19:05:11,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:05:11,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [418146982] [2020-08-21 19:05:11,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:05:11,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:05:11,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:05:11,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:05:11,200 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-21 19:05:11,201 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [418146982] [2020-08-21 19:05:11,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-21 19:05:11,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-21 19:05:11,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980915991] [2020-08-21 19:05:11,204 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-21 19:05:11,204 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:05:11,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-21 19:05:11,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-21 19:05:11,205 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 7 states. [2020-08-21 19:05:11,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:05:11,286 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2020-08-21 19:05:11,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-21 19:05:11,286 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2020-08-21 19:05:11,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:05:11,287 INFO L225 Difference]: With dead ends: 21 [2020-08-21 19:05:11,288 INFO L226 Difference]: Without dead ends: 18 [2020-08-21 19:05:11,289 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-21 19:05:11,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-08-21 19:05:11,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-08-21 19:05:11,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-08-21 19:05:11,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-08-21 19:05:11,295 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 15 [2020-08-21 19:05:11,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:05:11,295 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-08-21 19:05:11,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-21 19:05:11,296 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-08-21 19:05:11,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-08-21 19:05:11,297 INFO L414 BasicCegarLoop]: Found error trace [2020-08-21 19:05:11,297 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-21 19:05:11,297 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-21 19:05:11,297 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-21 19:05:11,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-21 19:05:11,298 INFO L82 PathProgramCache]: Analyzing trace with hash -140999300, now seen corresponding path program 2 times [2020-08-21 19:05:11,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-21 19:05:11,299 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [430877660] [2020-08-21 19:05:11,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-21 19:05:11,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:05:11,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-21 19:05:11,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-21 19:05:11,380 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-08-21 19:05:11,381 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [430877660] [2020-08-21 19:05:11,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-21 19:05:11,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-21 19:05:11,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860800567] [2020-08-21 19:05:11,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-21 19:05:11,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-21 19:05:11,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-21 19:05:11,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-21 19:05:11,384 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 5 states. [2020-08-21 19:05:11,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-21 19:05:11,422 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-08-21 19:05:11,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-21 19:05:11,422 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-08-21 19:05:11,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-21 19:05:11,423 INFO L225 Difference]: With dead ends: 18 [2020-08-21 19:05:11,423 INFO L226 Difference]: Without dead ends: 0 [2020-08-21 19:05:11,424 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 [2020-08-21 19:05:11,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-21 19:05:11,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-21 19:05:11,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-21 19:05:11,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-21 19:05:11,426 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-08-21 19:05:11,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-21 19:05:11,426 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-21 19:05:11,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-21 19:05:11,426 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-21 19:05:11,427 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-21 19:05:11,427 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-21 19:05:11,430 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-21 19:05:11,474 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-21 19:05:11,474 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)|)) [2020-08-21 19:05:11,474 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-21 19:05:11,475 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-21 19:05:11,475 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-21 19:05:11,475 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-21 19:05:11,475 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-21 19:05:11,476 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-08-21 19:05:11,476 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-08-21 19:05:11,476 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 6) no Hoare annotation was computed. [2020-08-21 19:05:11,476 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-08-21 19:05:11,476 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 55) no Hoare annotation was computed. [2020-08-21 19:05:11,477 INFO L268 CegarLoopResult]: For program point L30(lines 30 69) no Hoare annotation was computed. [2020-08-21 19:05:11,477 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)) [2020-08-21 19:05:11,477 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 12 72) no Hoare annotation was computed. [2020-08-21 19:05:11,477 INFO L268 CegarLoopResult]: For program point L24(lines 24 70) no Hoare annotation was computed. [2020-08-21 19:05:11,478 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-08-21 19:05:11,478 INFO L268 CegarLoopResult]: For program point L53(lines 53 62) no Hoare annotation was computed. [2020-08-21 19:05:11,478 INFO L268 CegarLoopResult]: For program point L18(lines 18 71) no Hoare annotation was computed. [2020-08-21 19:05:11,478 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 12 72) no Hoare annotation was computed. [2020-08-21 19:05:11,479 INFO L264 CegarLoopResult]: At program point L44(lines 31 65) the Hoare annotation is: (<= (+ main_~main__x~0 2) main_~main__y~0) [2020-08-21 19:05:11,479 INFO L268 CegarLoopResult]: For program point L38(lines 38 64) no Hoare annotation was computed. [2020-08-21 19:05:11,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 07:05:11 BoogieIcfgContainer [2020-08-21 19:05:11,498 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-21 19:05:11,501 INFO L168 Benchmark]: Toolchain (without parser) took 1753.89 ms. Allocated memory was 145.2 MB in the beginning and 199.8 MB in the end (delta: 54.5 MB). Free memory was 101.1 MB in the beginning and 92.6 MB in the end (delta: 8.5 MB). Peak memory consumption was 63.0 MB. Max. memory is 7.1 GB. [2020-08-21 19:05:11,502 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-21 19:05:11,503 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.22 ms. Allocated memory is still 145.2 MB. Free memory was 100.9 MB in the beginning and 91.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-08-21 19:05:11,504 INFO L168 Benchmark]: Boogie Preprocessor took 118.29 ms. Allocated memory was 145.2 MB in the beginning and 199.8 MB in the end (delta: 54.5 MB). Free memory was 91.0 MB in the beginning and 177.8 MB in the end (delta: -86.8 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2020-08-21 19:05:11,505 INFO L168 Benchmark]: RCFGBuilder took 280.37 ms. Allocated memory is still 199.8 MB. Free memory was 177.8 MB in the beginning and 164.5 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2020-08-21 19:05:11,506 INFO L168 Benchmark]: TraceAbstraction took 1105.08 ms. Allocated memory is still 199.8 MB. Free memory was 164.5 MB in the beginning and 92.6 MB in the end (delta: 71.9 MB). Peak memory consumption was 71.9 MB. Max. memory is 7.1 GB. [2020-08-21 19:05:11,510 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 245.22 ms. Allocated memory is still 145.2 MB. Free memory was 100.9 MB in the beginning and 91.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.29 ms. Allocated memory was 145.2 MB in the beginning and 199.8 MB in the end (delta: 54.5 MB). Free memory was 91.0 MB in the beginning and 177.8 MB in the end (delta: -86.8 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 280.37 ms. Allocated memory is still 199.8 MB. Free memory was 177.8 MB in the beginning and 164.5 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1105.08 ms. Allocated memory is still 199.8 MB. Free memory was 164.5 MB in the beginning and 92.6 MB in the end (delta: 71.9 MB). Peak memory consumption was 71.9 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: 0.9s, 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...