/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=5 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_o3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 06:48:28,298 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-08-19 06:48:28,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 06:48:28,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 06:48:28,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 06:48:28,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 06:48:28,331 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 06:48:28,332 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 06:48:28,333 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 06:48:28,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 06:48:28,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 06:48:28,336 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 06:48:28,337 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 06:48:28,338 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 06:48:28,339 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 06:48:28,340 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 06:48:28,342 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 06:48:28,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 06:48:28,346 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 06:48:28,347 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 06:48:28,348 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 06:48:28,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 06:48:28,352 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-19 06:48:28,360 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 06:48:28,361 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 06:48:28,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 06:48:28,362 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 [2020-08-19 06:48:28,395 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 06:48:28,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 06:48:28,397 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 06:48:28,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 06:48:28,397 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 06:48:28,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 06:48:28,398 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 06:48:28,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 06:48:28,398 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 06:48:28,398 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 06:48:28,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 06:48:28,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 06:48:28,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 06:48:28,403 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 06:48:28,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 06:48:28,404 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 06:48:28,404 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 06:48:28,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 06:48:28,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 06:48:28,405 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 06:48:28,405 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 06:48:28,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 06:48:28,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 06:48:28,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 06:48:28,406 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 06:48:28,408 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 06:48:28,408 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 06:48:28,408 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 06:48:28,409 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 06:48:28,409 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=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5; [2020-08-19 06:48:28,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 06:48:28,762 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 06:48:28,765 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 06:48:28,767 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 06:48:28,767 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 06:48:28,768 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_o3.c [2020-08-19 06:48:28,853 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cd476f1dd/734b97fbd6744a78893a461be028bd30/FLAGf504eb232 [2020-08-19 06:48:29,338 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 06:48:29,340 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_o3.c [2020-08-19 06:48:29,346 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cd476f1dd/734b97fbd6744a78893a461be028bd30/FLAGf504eb232 [2020-08-19 06:48:29,659 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cd476f1dd/734b97fbd6744a78893a461be028bd30 [2020-08-19 06:48:29,668 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 06:48:29,669 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 06:48:29,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 06:48:29,671 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 06:48:29,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 06:48:29,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 06:48:29" (1/1) ... [2020-08-19 06:48:29,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ab41b77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:48:29, skipping insertion in model container [2020-08-19 06:48:29,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 06:48:29" (1/1) ... [2020-08-19 06:48:29,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 06:48:29,708 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 06:48:29,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 06:48:29,905 INFO L203 MainTranslator]: Completed pre-run [2020-08-19 06:48:29,920 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-19 06:48:29,932 INFO L208 MainTranslator]: Completed translation [2020-08-19 06:48:29,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:48:29 WrapperNode [2020-08-19 06:48:29,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 06:48:29,933 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-19 06:48:29,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-19 06:48:29,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-19 06:48:29,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:48:29" (1/1) ... [2020-08-19 06:48:29,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:48:29" (1/1) ... [2020-08-19 06:48:29,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:48:29" (1/1) ... [2020-08-19 06:48:29,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:48:29" (1/1) ... [2020-08-19 06:48:29,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:48:29" (1/1) ... [2020-08-19 06:48:29,955 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:48:29" (1/1) ... [2020-08-19 06:48:29,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:48:29" (1/1) ... [2020-08-19 06:48:29,957 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-19 06:48:29,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-19 06:48:29,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-19 06:48:29,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-19 06:48:29,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:48:29" (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 [2020-08-19 06:48:30,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-19 06:48:30,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-19 06:48:30,104 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-08-19 06:48:30,104 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-19 06:48:30,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-08-19 06:48:30,105 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-19 06:48:30,105 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-08-19 06:48:30,105 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-19 06:48:30,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-19 06:48:30,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-19 06:48:30,267 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-19 06:48:30,267 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-08-19 06:48:30,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 06:48:30 BoogieIcfgContainer [2020-08-19 06:48:30,270 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-19 06:48:30,271 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-19 06:48:30,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-19 06:48:30,274 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-19 06:48:30,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.08 06:48:29" (1/3) ... [2020-08-19 06:48:30,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@361c2ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 06:48:30, skipping insertion in model container [2020-08-19 06:48:30,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:48:29" (2/3) ... [2020-08-19 06:48:30,276 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@361c2ca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.08 06:48:30, skipping insertion in model container [2020-08-19 06:48:30,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.08 06:48:30" (3/3) ... [2020-08-19 06:48:30,278 INFO L109 eAbstractionObserver]: Analyzing ICFG id_o3.c [2020-08-19 06:48:30,289 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-19 06:48:30,296 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-19 06:48:30,309 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-19 06:48:30,333 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-19 06:48:30,333 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-19 06:48:30,334 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-19 06:48:30,334 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-19 06:48:30,334 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-19 06:48:30,334 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-19 06:48:30,334 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-19 06:48:30,334 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-19 06:48:30,353 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-08-19 06:48:30,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-08-19 06:48:30,360 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:48:30,361 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:48:30,362 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:48:30,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:48:30,369 INFO L82 PathProgramCache]: Analyzing trace with hash -872342019, now seen corresponding path program 1 times [2020-08-19 06:48:30,378 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:48:30,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1441613239] [2020-08-19 06:48:30,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:48:30,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:48:30,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:48:30,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:48:30,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-19 06:48:30,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:48:30,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-19 06:48:30,687 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1441613239] [2020-08-19 06:48:30,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-19 06:48:30,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-19 06:48:30,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087905674] [2020-08-19 06:48:30,696 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-19 06:48:30,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:48:30,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-19 06:48:30,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-19 06:48:30,710 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states. [2020-08-19 06:48:30,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:48:30,777 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2020-08-19 06:48:30,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-19 06:48:30,779 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-08-19 06:48:30,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:48:30,789 INFO L225 Difference]: With dead ends: 32 [2020-08-19 06:48:30,789 INFO L226 Difference]: Without dead ends: 18 [2020-08-19 06:48:30,793 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-19 06:48:30,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-08-19 06:48:30,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-08-19 06:48:30,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-08-19 06:48:30,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-08-19 06:48:30,838 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2020-08-19 06:48:30,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:48:30,839 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-08-19 06:48:30,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-19 06:48:30,839 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-08-19 06:48:30,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-08-19 06:48:30,841 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:48:30,842 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:48:30,842 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-19 06:48:30,842 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:48:30,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:48:30,843 INFO L82 PathProgramCache]: Analyzing trace with hash -953570577, now seen corresponding path program 1 times [2020-08-19 06:48:30,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:48:30,844 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [29710110] [2020-08-19 06:48:30,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:48:30,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:48:30,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:48:30,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:48:30,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-19 06:48:30,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:48:31,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:48:31,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:48:31,144 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-08-19 06:48:31,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [29710110] [2020-08-19 06:48:31,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 06:48:31,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-19 06:48:31,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706054988] [2020-08-19 06:48:31,153 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-19 06:48:31,153 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:48:31,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-19 06:48:31,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-19 06:48:31,154 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 7 states. [2020-08-19 06:48:31,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:48:31,222 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-08-19 06:48:31,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-19 06:48:31,224 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-08-19 06:48:31,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:48:31,225 INFO L225 Difference]: With dead ends: 25 [2020-08-19 06:48:31,225 INFO L226 Difference]: Without dead ends: 21 [2020-08-19 06:48:31,226 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-08-19 06:48:31,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-08-19 06:48:31,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-08-19 06:48:31,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-08-19 06:48:31,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-08-19 06:48:31,236 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 19 [2020-08-19 06:48:31,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:48:31,238 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-08-19 06:48:31,239 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-19 06:48:31,239 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-08-19 06:48:31,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-08-19 06:48:31,241 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:48:31,242 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:48:31,243 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-19 06:48:31,243 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:48:31,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:48:31,244 INFO L82 PathProgramCache]: Analyzing trace with hash 397359997, now seen corresponding path program 2 times [2020-08-19 06:48:31,244 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:48:31,245 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1155763761] [2020-08-19 06:48:31,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:48:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:48:31,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-19 06:48:31,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:48:31,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-19 06:48:31,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:48:31,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:48:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:48:31,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-08-19 06:48:31,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-19 06:48:31,498 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-08-19 06:48:31,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1155763761] [2020-08-19 06:48:31,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-19 06:48:31,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-19 06:48:31,500 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403213644] [2020-08-19 06:48:31,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-19 06:48:31,501 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-19 06:48:31,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-19 06:48:31,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-08-19 06:48:31,502 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 9 states. [2020-08-19 06:48:31,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-19 06:48:31,549 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2020-08-19 06:48:31,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-19 06:48:31,550 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-08-19 06:48:31,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-19 06:48:31,551 INFO L225 Difference]: With dead ends: 28 [2020-08-19 06:48:31,551 INFO L226 Difference]: Without dead ends: 24 [2020-08-19 06:48:31,552 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-08-19 06:48:31,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-08-19 06:48:31,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-08-19 06:48:31,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-08-19 06:48:31,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-08-19 06:48:31,560 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 25 [2020-08-19 06:48:31,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-19 06:48:31,560 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-08-19 06:48:31,561 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-19 06:48:31,561 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-08-19 06:48:31,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-08-19 06:48:31,562 INFO L414 BasicCegarLoop]: Found error trace [2020-08-19 06:48:31,562 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-19 06:48:31,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-19 06:48:31,563 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-19 06:48:31,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-19 06:48:31,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1198310127, now seen corresponding path program 3 times [2020-08-19 06:48:31,564 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-19 06:48:31,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [526440501] [2020-08-19 06:48:31,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-19 06:48:31,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-19 06:48:31,585 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-19 06:48:31,586 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-19 06:48:31,595 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-19 06:48:31,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.08 06:48:31 BoogieIcfgContainer [2020-08-19 06:48:31,624 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-19 06:48:31,627 INFO L168 Benchmark]: Toolchain (without parser) took 1956.31 ms. Allocated memory was 148.4 MB in the beginning and 202.9 MB in the end (delta: 54.5 MB). Free memory was 105.1 MB in the beginning and 98.2 MB in the end (delta: 6.9 MB). Peak memory consumption was 61.4 MB. Max. memory is 7.1 GB. [2020-08-19 06:48:31,628 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-08-19 06:48:31,629 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.55 ms. Allocated memory is still 148.4 MB. Free memory was 104.9 MB in the beginning and 95.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-08-19 06:48:31,630 INFO L168 Benchmark]: Boogie Preprocessor took 23.55 ms. Allocated memory is still 148.4 MB. Free memory was 95.6 MB in the beginning and 94.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-08-19 06:48:31,631 INFO L168 Benchmark]: RCFGBuilder took 313.09 ms. Allocated memory was 148.4 MB in the beginning and 202.9 MB in the end (delta: 54.5 MB). Free memory was 94.3 MB in the beginning and 171.9 MB in the end (delta: -77.7 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2020-08-19 06:48:31,632 INFO L168 Benchmark]: TraceAbstraction took 1352.61 ms. Allocated memory is still 202.9 MB. Free memory was 171.3 MB in the beginning and 98.2 MB in the end (delta: 73.0 MB). Peak memory consumption was 73.0 MB. Max. memory is 7.1 GB. [2020-08-19 06:48:31,636 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 148.4 MB. Free memory was 122.9 MB in the beginning and 122.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 262.55 ms. Allocated memory is still 148.4 MB. Free memory was 104.9 MB in the beginning and 95.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.55 ms. Allocated memory is still 148.4 MB. Free memory was 95.6 MB in the beginning and 94.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 313.09 ms. Allocated memory was 148.4 MB in the beginning and 202.9 MB in the end (delta: 54.5 MB). Free memory was 94.3 MB in the beginning and 171.9 MB in the end (delta: -77.7 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1352.61 ms. Allocated memory is still 202.9 MB. Free memory was 171.3 MB in the beginning and 98.2 MB in the end (delta: 73.0 MB). Peak memory consumption was 73.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] unsigned int input = __VERIFIER_nondet_uint(); [L11] CALL, EXPR id(input) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND TRUE x==0 [L5] return 0; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L11] RET, EXPR id(input) [L11] unsigned int result = id(input); [L12] COND TRUE result == 3 [L13] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.2s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 55 SDtfs, 2 SDslu, 252 SDs, 0 SdLazy, 54 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=3, 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 3744 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 9/18 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 incorrect! Received shutdown request...