/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-regression/test11.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 06:17:50,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 06:17:50,714 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 06:17:50,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 06:17:50,763 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 06:17:50,768 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 06:17:50,772 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 06:17:50,777 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 06:17:50,781 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 06:17:50,786 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 06:17:50,790 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 06:17:50,792 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 06:17:50,792 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 06:17:50,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 06:17:50,797 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 06:17:50,798 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 06:17:50,800 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 06:17:50,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 06:17:50,821 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 06:17:50,828 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 06:17:50,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 06:17:50,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 06:17:50,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 06:17:50,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 06:17:50,843 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 06:17:50,859 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 06:17:50,860 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 06:17:50,861 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 06:17:50,862 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 06:17:50,911 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 06:17:50,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 06:17:50,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 06:17:50,915 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 06:17:50,915 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 06:17:50,915 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 06:17:50,916 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 06:17:50,916 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 06:17:50,916 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 06:17:50,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 06:17:50,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 06:17:50,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 06:17:50,918 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 06:17:50,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 06:17:50,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 06:17:50,918 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 06:17:50,918 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 06:17:50,919 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 06:17:50,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 06:17:50,919 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 06:17:50,919 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 06:17:50,919 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 06:17:50,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 06:17:50,920 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 06:17:50,920 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 06:17:50,920 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 06:17:51,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 06:17:51,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 06:17:51,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 06:17:51,413 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 06:17:51,414 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 06:17:51,415 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test11.c [2020-12-23 06:17:51,489 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5ebda29ba/3230a15d73c347a283bf10847b652733/FLAG501726e19 [2020-12-23 06:17:52,157 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 06:17:52,158 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/ldv-regression/test11.c [2020-12-23 06:17:52,167 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5ebda29ba/3230a15d73c347a283bf10847b652733/FLAG501726e19 [2020-12-23 06:17:52,537 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/5ebda29ba/3230a15d73c347a283bf10847b652733 [2020-12-23 06:17:52,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 06:17:52,543 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 06:17:52,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 06:17:52,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 06:17:52,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 06:17:52,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:17:52" (1/1) ... [2020-12-23 06:17:52,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@216b5791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:52, skipping insertion in model container [2020-12-23 06:17:52,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:17:52" (1/1) ... [2020-12-23 06:17:52,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 06:17:52,579 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: VariableLHS[~a~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~b~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~pb~0,] left hand side expression in assignment: lhs: VariableLHS[~pa~0,] left hand side expression in assignment: address: IdentifierExpression[~pc~0,] [2020-12-23 06:17:52,732 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/ldv-regression/test11.c[823,836] [2020-12-23 06:17:52,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:17:52,746 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: address: IdentifierExpression[~#a~0,GLOBAL] left hand side expression in assignment: address: IdentifierExpression[~#b~0,GLOBAL] left hand side expression in assignment: lhs: VariableLHS[~pb~0,] left hand side expression in assignment: lhs: VariableLHS[~pa~0,] left hand side expression in assignment: address: IdentifierExpression[~pc~0,] [2020-12-23 06:17:52,764 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/ldv-regression/test11.c[823,836] [2020-12-23 06:17:52,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:17:52,781 INFO L208 MainTranslator]: Completed translation [2020-12-23 06:17:52,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:52 WrapperNode [2020-12-23 06:17:52,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 06:17:52,783 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 06:17:52,783 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 06:17:52,783 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 06:17:52,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:52" (1/1) ... [2020-12-23 06:17:52,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:52" (1/1) ... [2020-12-23 06:17:52,819 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 06:17:52,820 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 06:17:52,820 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 06:17:52,821 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 06:17:52,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:52" (1/1) ... [2020-12-23 06:17:52,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:52" (1/1) ... [2020-12-23 06:17:52,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:52" (1/1) ... [2020-12-23 06:17:52,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:52" (1/1) ... [2020-12-23 06:17:52,837 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:52" (1/1) ... [2020-12-23 06:17:52,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:52" (1/1) ... [2020-12-23 06:17:52,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:52" (1/1) ... [2020-12-23 06:17:52,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 06:17:52,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 06:17:52,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 06:17:52,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 06:17:52,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:52" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2020-12-23 06:17:52,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 06:17:52,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 06:17:52,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 06:17:52,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 06:17:52,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 06:17:52,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 06:17:52,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 06:17:53,212 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 06:17:53,213 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-23 06:17:53,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:17:53 BoogieIcfgContainer [2020-12-23 06:17:53,214 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 06:17:53,216 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 06:17:53,216 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 06:17:53,220 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 06:17:53,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 06:17:52" (1/3) ... [2020-12-23 06:17:53,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bbc00fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:17:53, skipping insertion in model container [2020-12-23 06:17:53,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:52" (2/3) ... [2020-12-23 06:17:53,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bbc00fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 06:17:53, skipping insertion in model container [2020-12-23 06:17:53,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:17:53" (3/3) ... [2020-12-23 06:17:53,224 INFO L111 eAbstractionObserver]: Analyzing ICFG test11.c [2020-12-23 06:17:53,231 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 06:17:53,237 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 06:17:53,315 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 06:17:53,375 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 06:17:53,376 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 06:17:53,376 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 06:17:53,376 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 06:17:53,376 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 06:17:53,376 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 06:17:53,376 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 06:17:53,377 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 06:17:53,401 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2020-12-23 06:17:53,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 06:17:53,409 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:17:53,410 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:17:53,411 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:17:53,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:17:53,420 INFO L82 PathProgramCache]: Analyzing trace with hash 119352371, now seen corresponding path program 1 times [2020-12-23 06:17:53,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:17:53,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512051520] [2020-12-23 06:17:53,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:17:53,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:17:53,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 06:17:53,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512051520] [2020-12-23 06:17:53,799 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 06:17:53,799 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 06:17:53,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804683212] [2020-12-23 06:17:53,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 06:17:53,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:17:53,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 06:17:53,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 06:17:53,833 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 4 states. [2020-12-23 06:17:53,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:17:53,905 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2020-12-23 06:17:53,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 06:17:53,908 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-12-23 06:17:53,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:17:53,935 INFO L225 Difference]: With dead ends: 22 [2020-12-23 06:17:53,935 INFO L226 Difference]: Without dead ends: 12 [2020-12-23 06:17:53,939 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 06:17:53,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-12-23 06:17:53,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-12-23 06:17:53,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-12-23 06:17:53,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2020-12-23 06:17:53,976 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 8 [2020-12-23 06:17:53,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:17:53,977 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2020-12-23 06:17:53,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 06:17:53,977 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-12-23 06:17:53,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-23 06:17:53,979 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:17:53,979 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:17:53,979 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 06:17:53,980 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:17:53,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:17:53,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1264891367, now seen corresponding path program 1 times [2020-12-23 06:17:53,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:17:53,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261613285] [2020-12-23 06:17:53,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:17:54,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:17:54,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 06:17:54,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261613285] [2020-12-23 06:17:54,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 06:17:54,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-23 06:17:54,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232755389] [2020-12-23 06:17:54,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-23 06:17:54,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:17:54,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-23 06:17:54,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-23 06:17:54,157 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 5 states. [2020-12-23 06:17:54,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:17:54,224 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2020-12-23 06:17:54,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 06:17:54,225 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-23 06:17:54,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:17:54,226 INFO L225 Difference]: With dead ends: 14 [2020-12-23 06:17:54,226 INFO L226 Difference]: Without dead ends: 12 [2020-12-23 06:17:54,228 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-23 06:17:54,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-12-23 06:17:54,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-12-23 06:17:54,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-12-23 06:17:54,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2020-12-23 06:17:54,235 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 10 [2020-12-23 06:17:54,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:17:54,236 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2020-12-23 06:17:54,236 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-23 06:17:54,236 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-12-23 06:17:54,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-23 06:17:54,238 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:17:54,239 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:17:54,239 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 06:17:54,240 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:17:54,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:17:54,242 INFO L82 PathProgramCache]: Analyzing trace with hash -556924879, now seen corresponding path program 1 times [2020-12-23 06:17:54,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:17:54,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957140578] [2020-12-23 06:17:54,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:17:54,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:17:54,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 06:17:54,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957140578] [2020-12-23 06:17:54,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 06:17:54,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 06:17:54,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314647401] [2020-12-23 06:17:54,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 06:17:54,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:17:54,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 06:17:54,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 06:17:54,360 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand 4 states. [2020-12-23 06:17:54,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:17:54,397 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2020-12-23 06:17:54,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 06:17:54,397 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-12-23 06:17:54,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:17:54,398 INFO L225 Difference]: With dead ends: 12 [2020-12-23 06:17:54,398 INFO L226 Difference]: Without dead ends: 0 [2020-12-23 06:17:54,399 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 06:17:54,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-23 06:17:54,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-23 06:17:54,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-23 06:17:54,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-23 06:17:54,404 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-12-23 06:17:54,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:17:54,404 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-23 06:17:54,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 06:17:54,404 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-23 06:17:54,405 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-23 06:17:54,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 06:17:54,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-23 06:17:54,440 INFO L185 CegarLoopUtils]: At program point L33(lines 14 34) the Hoare annotation is: (not (= ULTIMATE.start_main_~pc~0.base 0)) [2020-12-23 06:17:54,441 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-23 06:17:54,441 INFO L185 CegarLoopUtils]: At program point L27(lines 14 34) the Hoare annotation is: false [2020-12-23 06:17:54,442 INFO L189 CegarLoopUtils]: For program point L21(line 21) no Hoare annotation was computed. [2020-12-23 06:17:54,442 INFO L189 CegarLoopUtils]: For program point L21-2(line 21) no Hoare annotation was computed. [2020-12-23 06:17:54,443 INFO L189 CegarLoopUtils]: For program point L11(line 11) no Hoare annotation was computed. [2020-12-23 06:17:54,443 INFO L189 CegarLoopUtils]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-12-23 06:17:54,443 INFO L185 CegarLoopUtils]: At program point L11-3(lines 9 12) the Hoare annotation is: (and (= ULTIMATE.start_main_~pc~0.offset |ULTIMATE.start_main_~#c~0.offset|) (= ULTIMATE.start_main_~pc~0.base |ULTIMATE.start_main_~#c~0.base|) (not (= ULTIMATE.start_main_~pc~0.base 0))) [2020-12-23 06:17:54,443 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-23 06:17:54,443 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-23 06:17:54,443 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-23 06:17:54,443 INFO L189 CegarLoopUtils]: For program point L26(lines 26 28) no Hoare annotation was computed. [2020-12-23 06:17:54,444 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 32) no Hoare annotation was computed. [2020-12-23 06:17:54,444 INFO L189 CegarLoopUtils]: For program point L20(lines 20 21) no Hoare annotation was computed. [2020-12-23 06:17:54,444 INFO L189 CegarLoopUtils]: For program point L20-2(lines 20 23) no Hoare annotation was computed. [2020-12-23 06:17:54,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 06:17:54 BoogieIcfgContainer [2020-12-23 06:17:54,463 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 06:17:54,464 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 06:17:54,464 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 06:17:54,465 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 06:17:54,465 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:17:53" (3/4) ... [2020-12-23 06:17:54,469 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-23 06:17:54,487 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-23 06:17:54,487 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-23 06:17:54,487 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 06:17:54,488 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 06:17:54,573 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/ldv-regression/test11.c-witness.graphml [2020-12-23 06:17:54,573 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 06:17:54,575 INFO L168 Benchmark]: Toolchain (without parser) took 2031.80 ms. Allocated memory is still 154.1 MB. Free memory was 128.4 MB in the beginning and 87.1 MB in the end (delta: 41.4 MB). Peak memory consumption was 41.3 MB. Max. memory is 8.0 GB. [2020-12-23 06:17:54,576 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 154.1 MB. Free memory is still 126.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:17:54,577 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.99 ms. Allocated memory is still 154.1 MB. Free memory was 128.2 MB in the beginning and 118.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-23 06:17:54,580 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.70 ms. Allocated memory is still 154.1 MB. Free memory was 118.6 MB in the beginning and 117.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 06:17:54,581 INFO L168 Benchmark]: Boogie Preprocessor took 22.81 ms. Allocated memory is still 154.1 MB. Free memory was 117.1 MB in the beginning and 116.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 06:17:54,581 INFO L168 Benchmark]: RCFGBuilder took 370.63 ms. Allocated memory is still 154.1 MB. Free memory was 116.0 MB in the beginning and 101.1 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2020-12-23 06:17:54,584 INFO L168 Benchmark]: TraceAbstraction took 1246.93 ms. Allocated memory is still 154.1 MB. Free memory was 100.6 MB in the beginning and 90.2 MB in the end (delta: 10.4 MB). Peak memory consumption was 9.8 MB. Max. memory is 8.0 GB. [2020-12-23 06:17:54,584 INFO L168 Benchmark]: Witness Printer took 109.47 ms. Allocated memory is still 154.1 MB. Free memory was 90.2 MB in the beginning and 87.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-23 06:17:54,588 INFO L339 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 154.1 MB. Free memory is still 126.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 234.99 ms. Allocated memory is still 154.1 MB. Free memory was 128.2 MB in the beginning and 118.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 36.70 ms. Allocated memory is still 154.1 MB. Free memory was 118.6 MB in the beginning and 117.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 22.81 ms. Allocated memory is still 154.1 MB. Free memory was 117.1 MB in the beginning and 116.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 370.63 ms. Allocated memory is still 154.1 MB. Free memory was 116.0 MB in the beginning and 101.1 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1246.93 ms. Allocated memory is still 154.1 MB. Free memory was 100.6 MB in the beginning and 90.2 MB in the end (delta: 10.4 MB). Peak memory consumption was 9.8 MB. Max. memory is 8.0 GB. * Witness Printer took 109.47 ms. Allocated memory is still 154.1 MB. Free memory was 90.2 MB in the beginning and 87.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 32]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: !(pc == 0) - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: (pc == c && pc == c) && !(pc == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 32 SDtfs, 23 SDslu, 37 SDs, 0 SdLazy, 24 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 3 LocationsWithAnnotation, 3 PreInvPairs, 4 NumberOfFragments, 16 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 1082 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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...