./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-invgen/id_build_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ab607076-d784-4416-bacd-7977c5f3ef41/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ab607076-d784-4416-bacd-7977c5f3ef41/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ab607076-d784-4416-bacd-7977c5f3ef41/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ab607076-d784-4416-bacd-7977c5f3ef41/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/id_build_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_ab607076-d784-4416-bacd-7977c5f3ef41/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ab607076-d784-4416-bacd-7977c5f3ef41/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 595e0ffd0ff086ae45c2b9536863374b9b9c0fb6 ................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:59:10,021 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:59:10,023 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:59:10,034 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:59:10,035 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:59:10,036 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:59:10,038 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:59:10,040 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:59:10,041 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:59:10,042 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:59:10,044 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:59:10,044 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:59:10,045 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:59:10,046 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:59:10,049 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:59:10,054 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:59:10,055 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:59:10,056 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:59:10,057 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:59:10,058 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:59:10,059 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:59:10,059 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:59:10,060 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:59:10,061 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:59:10,061 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:59:10,071 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:59:10,072 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:59:10,072 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:59:10,073 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:59:10,073 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:59:10,074 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:59:10,074 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:59:10,074 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:59:10,074 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:59:10,075 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:59:10,075 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:59:10,075 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ab607076-d784-4416-bacd-7977c5f3ef41/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-18 12:59:10,086 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:59:10,086 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:59:10,086 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:59:10,087 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 12:59:10,087 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:59:10,087 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:59:10,087 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 12:59:10,088 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:59:10,088 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 12:59:10,088 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:59:10,088 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 12:59:10,088 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:59:10,088 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:59:10,089 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:59:10,089 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:59:10,090 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 12:59:10,090 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:59:10,091 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:59:10,091 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:59:10,091 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:59:10,091 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:59:10,091 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:59:10,091 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:59:10,091 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:59:10,092 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:59:10,092 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:59:10,092 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:59:10,092 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 12:59:10,092 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:59:10,092 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:59:10,093 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_ab607076-d784-4416-bacd-7977c5f3ef41/bin-2019/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 595e0ffd0ff086ae45c2b9536863374b9b9c0fb6 [2018-11-18 12:59:10,188 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:59:10,246 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:59:10,249 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:59:10,262 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:59:10,281 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:59:10,282 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ab607076-d784-4416-bacd-7977c5f3ef41/bin-2019/uautomizer/../../sv-benchmarks/c/loop-invgen/id_build_true-unreach-call_true-termination.i [2018-11-18 12:59:10,353 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ab607076-d784-4416-bacd-7977c5f3ef41/bin-2019/uautomizer/data/24587406f/f6ff247b9d34457f9a93e290ed98dd9f/FLAG83bf13209 [2018-11-18 12:59:10,765 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:59:10,766 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ab607076-d784-4416-bacd-7977c5f3ef41/sv-benchmarks/c/loop-invgen/id_build_true-unreach-call_true-termination.i [2018-11-18 12:59:10,774 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ab607076-d784-4416-bacd-7977c5f3ef41/bin-2019/uautomizer/data/24587406f/f6ff247b9d34457f9a93e290ed98dd9f/FLAG83bf13209 [2018-11-18 12:59:10,790 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ab607076-d784-4416-bacd-7977c5f3ef41/bin-2019/uautomizer/data/24587406f/f6ff247b9d34457f9a93e290ed98dd9f [2018-11-18 12:59:10,793 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:59:10,795 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 12:59:10,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:59:10,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:59:10,802 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:59:10,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:59:10" (1/1) ... [2018-11-18 12:59:10,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@88e9939 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:10, skipping insertion in model container [2018-11-18 12:59:10,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:59:10" (1/1) ... [2018-11-18 12:59:10,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:59:10,833 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:59:10,974 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:59:10,977 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:59:10,988 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:59:10,999 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:59:10,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:10 WrapperNode [2018-11-18 12:59:10,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:59:11,000 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:59:11,000 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:59:11,000 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:59:11,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:10" (1/1) ... [2018-11-18 12:59:11,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:10" (1/1) ... [2018-11-18 12:59:11,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:10" (1/1) ... [2018-11-18 12:59:11,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:10" (1/1) ... [2018-11-18 12:59:11,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:10" (1/1) ... [2018-11-18 12:59:11,018 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:10" (1/1) ... [2018-11-18 12:59:11,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:10" (1/1) ... [2018-11-18 12:59:11,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:59:11,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:59:11,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:59:11,019 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:59:11,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ab607076-d784-4416-bacd-7977c5f3ef41/bin-2019/uautomizer/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 [2018-11-18 12:59:11,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:59:11,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:59:11,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 12:59:11,124 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:59:11,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 12:59:11,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-18 12:59:11,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 12:59:11,125 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 12:59:11,125 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:59:11,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:59:11,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:59:11,335 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:59:11,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:59:11 BoogieIcfgContainer [2018-11-18 12:59:11,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:59:11,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:59:11,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:59:11,344 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:59:11,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:59:10" (1/3) ... [2018-11-18 12:59:11,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae340c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:59:11, skipping insertion in model container [2018-11-18 12:59:11,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:59:10" (2/3) ... [2018-11-18 12:59:11,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ae340c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:59:11, skipping insertion in model container [2018-11-18 12:59:11,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:59:11" (3/3) ... [2018-11-18 12:59:11,348 INFO L112 eAbstractionObserver]: Analyzing ICFG id_build_true-unreach-call_true-termination.i [2018-11-18 12:59:11,357 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:59:11,363 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 12:59:11,376 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 12:59:11,406 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:59:11,406 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:59:11,406 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:59:11,407 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:59:11,407 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:59:11,407 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:59:11,407 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:59:11,407 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:59:11,408 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:59:11,427 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-11-18 12:59:11,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 12:59:11,434 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:59:11,435 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:59:11,439 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:59:11,444 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:59:11,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1225232818, now seen corresponding path program 1 times [2018-11-18 12:59:11,446 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:59:11,447 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:59:11,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:59:11,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:59:11,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:59:11,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:59:11,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:59:11,662 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:59:11,663 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 12:59:11,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 12:59:11,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 12:59:11,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 12:59:11,680 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2018-11-18 12:59:11,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:59:11,849 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2018-11-18 12:59:11,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 12:59:11,850 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-11-18 12:59:11,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:59:11,856 INFO L225 Difference]: With dead ends: 47 [2018-11-18 12:59:11,856 INFO L226 Difference]: Without dead ends: 23 [2018-11-18 12:59:11,859 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 12:59:11,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-18 12:59:11,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-11-18 12:59:11,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-18 12:59:11,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2018-11-18 12:59:11,885 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 13 [2018-11-18 12:59:11,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:59:11,886 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2018-11-18 12:59:11,886 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 12:59:11,886 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2018-11-18 12:59:11,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-18 12:59:11,887 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:59:11,887 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:59:11,887 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 12:59:11,887 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:59:11,888 INFO L82 PathProgramCache]: Analyzing trace with hash 842211255, now seen corresponding path program 1 times [2018-11-18 12:59:11,889 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:59:11,889 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:59:11,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:59:11,890 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:59:11,890 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:59:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:59:12,057 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:59:12,057 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 12:59:12,057 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ab607076-d784-4416-bacd-7977c5f3ef41/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 12:59:12,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:59:12,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:59:12,101 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 12:59:12,180 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:59:12,211 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-18 12:59:12,211 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2018-11-18 12:59:12,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 12:59:12,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 12:59:12,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2018-11-18 12:59:12,212 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 9 states. [2018-11-18 12:59:12,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:59:12,370 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2018-11-18 12:59:12,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 12:59:12,371 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2018-11-18 12:59:12,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:59:12,371 INFO L225 Difference]: With dead ends: 23 [2018-11-18 12:59:12,371 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 12:59:12,372 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-11-18 12:59:12,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 12:59:12,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 12:59:12,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 12:59:12,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 12:59:12,373 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2018-11-18 12:59:12,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:59:12,373 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:59:12,373 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 12:59:12,373 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:59:12,373 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 12:59:12,379 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 12:59:12,443 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 12:59:12,443 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:59:12,443 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:59:12,443 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 12:59:12,443 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:59:12,444 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:59:12,444 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 20) no Hoare annotation was computed. [2018-11-18 12:59:12,444 INFO L421 ceAbstractionStarter]: At program point L15(line 15) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~i~0 1) main_~nlen~0)) [2018-11-18 12:59:12,444 INFO L421 ceAbstractionStarter]: At program point L15-1(line 15) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~i~0 1) main_~nlen~0)) [2018-11-18 12:59:12,444 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 20) no Hoare annotation was computed. [2018-11-18 12:59:12,444 INFO L425 ceAbstractionStarter]: For program point L13-1(lines 13 18) no Hoare annotation was computed. [2018-11-18 12:59:12,444 INFO L425 ceAbstractionStarter]: For program point L13-3(lines 13 18) no Hoare annotation was computed. [2018-11-18 12:59:12,444 INFO L421 ceAbstractionStarter]: At program point L13-4(lines 13 18) the Hoare annotation is: (<= 0 main_~i~0) [2018-11-18 12:59:12,445 INFO L425 ceAbstractionStarter]: For program point L13-5(lines 13 18) no Hoare annotation was computed. [2018-11-18 12:59:12,445 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 20) the Hoare annotation is: true [2018-11-18 12:59:12,445 INFO L425 ceAbstractionStarter]: For program point L16(lines 14 17) no Hoare annotation was computed. [2018-11-18 12:59:12,448 INFO L425 ceAbstractionStarter]: For program point L14-1(lines 14 17) no Hoare annotation was computed. [2018-11-18 12:59:12,448 INFO L421 ceAbstractionStarter]: At program point L14-3(lines 14 17) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~i~0 1) main_~nlen~0)) [2018-11-18 12:59:12,448 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-18 12:59:12,448 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-18 12:59:12,449 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-18 12:59:12,449 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-18 12:59:12,449 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-18 12:59:12,449 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-18 12:59:12,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:59:12 BoogieIcfgContainer [2018-11-18 12:59:12,461 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:59:12,461 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:59:12,462 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:59:12,462 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:59:12,462 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:59:11" (3/4) ... [2018-11-18 12:59:12,468 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 12:59:12,476 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 12:59:12,476 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 12:59:12,476 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-18 12:59:12,479 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-11-18 12:59:12,480 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-18 12:59:12,480 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 12:59:12,521 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ab607076-d784-4416-bacd-7977c5f3ef41/bin-2019/uautomizer/witness.graphml [2018-11-18 12:59:12,521 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:59:12,522 INFO L168 Benchmark]: Toolchain (without parser) took 1727.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 955.4 MB in the beginning and 1.1 GB in the end (delta: -125.9 MB). Peak memory consumption was 29.3 MB. Max. memory is 11.5 GB. [2018-11-18 12:59:12,523 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:59:12,524 INFO L168 Benchmark]: CACSL2BoogieTranslator took 203.49 ms. Allocated memory is still 1.0 GB. Free memory was 955.4 MB in the beginning and 944.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:59:12,524 INFO L168 Benchmark]: Boogie Preprocessor took 19.41 ms. Allocated memory is still 1.0 GB. Free memory was 944.6 MB in the beginning and 941.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:59:12,524 INFO L168 Benchmark]: RCFGBuilder took 316.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -197.3 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:59:12,525 INFO L168 Benchmark]: TraceAbstraction took 1124.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 54.5 MB). Peak memory consumption was 54.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:59:12,525 INFO L168 Benchmark]: Witness Printer took 60.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-18 12:59:12,528 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 203.49 ms. Allocated memory is still 1.0 GB. Free memory was 955.4 MB in the beginning and 944.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.41 ms. Allocated memory is still 1.0 GB. Free memory was 944.6 MB in the beginning and 941.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 316.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -197.3 MB). Peak memory consumption was 19.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1124.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 54.5 MB). Peak memory consumption was 54.5 MB. Max. memory is 11.5 GB. * Witness Printer took 60.00 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 14]: Loop Invariant Derived loop invariant: 0 <= i && i + 1 <= nlen - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 <= i - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. SAFE Result, 1.0s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 35 SDtfs, 20 SDslu, 106 SDs, 0 SdLazy, 46 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 12 PreInvPairs, 16 NumberOfFragments, 35 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 1934 SizeOfPredicates, 2 NumberOfNonLiveVariables, 40 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 3/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...