./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/recHanoi02-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2ab6cf76-80f5-4df7-a9ad-5121fdc2c64e/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2ab6cf76-80f5-4df7-a9ad-5121fdc2c64e/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2ab6cf76-80f5-4df7-a9ad-5121fdc2c64e/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2ab6cf76-80f5-4df7-a9ad-5121fdc2c64e/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive/recHanoi02-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2ab6cf76-80f5-4df7-a9ad-5121fdc2c64e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2ab6cf76-80f5-4df7-a9ad-5121fdc2c64e/bin/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 f48e7b9931723f1165b5bb8f3d86571b9aa1aa14 ...................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 17:28:17,317 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 17:28:17,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 17:28:17,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 17:28:17,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 17:28:17,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 17:28:17,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 17:28:17,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 17:28:17,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 17:28:17,331 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 17:28:17,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 17:28:17,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 17:28:17,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 17:28:17,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 17:28:17,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 17:28:17,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 17:28:17,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 17:28:17,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 17:28:17,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 17:28:17,339 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 17:28:17,340 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 17:28:17,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 17:28:17,341 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 17:28:17,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 17:28:17,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 17:28:17,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 17:28:17,343 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 17:28:17,344 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 17:28:17,344 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 17:28:17,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 17:28:17,345 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 17:28:17,345 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 17:28:17,346 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 17:28:17,346 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 17:28:17,347 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 17:28:17,347 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 17:28:17,347 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 17:28:17,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 17:28:17,348 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 17:28:17,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 17:28:17,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 17:28:17,349 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2ab6cf76-80f5-4df7-a9ad-5121fdc2c64e/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 17:28:17,359 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 17:28:17,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 17:28:17,359 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 17:28:17,360 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 17:28:17,360 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 17:28:17,360 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 17:28:17,360 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 17:28:17,360 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 17:28:17,360 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 17:28:17,361 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 17:28:17,361 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 17:28:17,361 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 17:28:17,361 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 17:28:17,361 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 17:28:17,361 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 17:28:17,361 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 17:28:17,362 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 17:28:17,362 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 17:28:17,362 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 17:28:17,362 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 17:28:17,362 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 17:28:17,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 17:28:17,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 17:28:17,363 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 17:28:17,363 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 17:28:17,363 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 17:28:17,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 17:28:17,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 17:28:17,363 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 17:28:17,363 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_2ab6cf76-80f5-4df7-a9ad-5121fdc2c64e/bin/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 -> f48e7b9931723f1165b5bb8f3d86571b9aa1aa14 [2019-12-07 17:28:17,461 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 17:28:17,468 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 17:28:17,470 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 17:28:17,471 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 17:28:17,471 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 17:28:17,472 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2ab6cf76-80f5-4df7-a9ad-5121fdc2c64e/bin/uautomizer/../../sv-benchmarks/c/recursive/recHanoi02-2.c [2019-12-07 17:28:17,509 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2ab6cf76-80f5-4df7-a9ad-5121fdc2c64e/bin/uautomizer/data/96920ea18/64d7a4e3108d448781916c53db0a5403/FLAG00ea4bbd0 [2019-12-07 17:28:17,930 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 17:28:17,931 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2ab6cf76-80f5-4df7-a9ad-5121fdc2c64e/sv-benchmarks/c/recursive/recHanoi02-2.c [2019-12-07 17:28:17,934 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2ab6cf76-80f5-4df7-a9ad-5121fdc2c64e/bin/uautomizer/data/96920ea18/64d7a4e3108d448781916c53db0a5403/FLAG00ea4bbd0 [2019-12-07 17:28:17,944 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2ab6cf76-80f5-4df7-a9ad-5121fdc2c64e/bin/uautomizer/data/96920ea18/64d7a4e3108d448781916c53db0a5403 [2019-12-07 17:28:17,947 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 17:28:17,948 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 17:28:17,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 17:28:17,949 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 17:28:17,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 17:28:17,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:28:17" (1/1) ... [2019-12-07 17:28:17,953 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@174ba895 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:28:17, skipping insertion in model container [2019-12-07 17:28:17,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 05:28:17" (1/1) ... [2019-12-07 17:28:17,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 17:28:17,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 17:28:18,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:28:18,069 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 17:28:18,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 17:28:18,124 INFO L208 MainTranslator]: Completed translation [2019-12-07 17:28:18,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:28:18 WrapperNode [2019-12-07 17:28:18,124 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 17:28:18,125 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 17:28:18,125 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 17:28:18,125 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 17:28:18,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:28:18" (1/1) ... [2019-12-07 17:28:18,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:28:18" (1/1) ... [2019-12-07 17:28:18,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 17:28:18,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 17:28:18,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 17:28:18,146 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 17:28:18,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:28:18" (1/1) ... [2019-12-07 17:28:18,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:28:18" (1/1) ... [2019-12-07 17:28:18,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:28:18" (1/1) ... [2019-12-07 17:28:18,153 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:28:18" (1/1) ... [2019-12-07 17:28:18,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:28:18" (1/1) ... [2019-12-07 17:28:18,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:28:18" (1/1) ... [2019-12-07 17:28:18,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:28:18" (1/1) ... [2019-12-07 17:28:18,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 17:28:18,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 17:28:18,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 17:28:18,157 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 17:28:18,157 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:28:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2ab6cf76-80f5-4df7-a9ad-5121fdc2c64e/bin/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 [2019-12-07 17:28:18,197 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2019-12-07 17:28:18,197 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2019-12-07 17:28:18,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 17:28:18,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 17:28:18,291 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 17:28:18,292 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-07 17:28:18,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:28:18 BoogieIcfgContainer [2019-12-07 17:28:18,292 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 17:28:18,293 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 17:28:18,293 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 17:28:18,295 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 17:28:18,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 05:28:17" (1/3) ... [2019-12-07 17:28:18,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e9bbaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:28:18, skipping insertion in model container [2019-12-07 17:28:18,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 05:28:18" (2/3) ... [2019-12-07 17:28:18,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e9bbaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 05:28:18, skipping insertion in model container [2019-12-07 17:28:18,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:28:18" (3/3) ... [2019-12-07 17:28:18,297 INFO L109 eAbstractionObserver]: Analyzing ICFG recHanoi02-2.c [2019-12-07 17:28:18,304 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 17:28:18,308 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 17:28:18,315 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 17:28:18,329 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 17:28:18,329 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 17:28:18,329 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 17:28:18,329 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 17:28:18,329 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 17:28:18,329 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 17:28:18,329 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 17:28:18,329 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 17:28:18,341 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-12-07 17:28:18,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-07 17:28:18,344 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:28:18,344 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:28:18,345 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:28:18,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:28:18,348 INFO L82 PathProgramCache]: Analyzing trace with hash 2032829855, now seen corresponding path program 1 times [2019-12-07 17:28:18,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:28:18,354 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843627242] [2019-12-07 17:28:18,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:28:18,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:28:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:28:18,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 17:28:18,481 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843627242] [2019-12-07 17:28:18,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 17:28:18,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-07 17:28:18,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057376436] [2019-12-07 17:28:18,485 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 17:28:18,486 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:28:18,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 17:28:18,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-07 17:28:18,496 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 6 states. [2019-12-07 17:28:18,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:28:18,548 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2019-12-07 17:28:18,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-07 17:28:18,549 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-07 17:28:18,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:28:18,555 INFO L225 Difference]: With dead ends: 31 [2019-12-07 17:28:18,555 INFO L226 Difference]: Without dead ends: 15 [2019-12-07 17:28:18,557 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2019-12-07 17:28:18,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-07 17:28:18,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-12-07 17:28:18,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-07 17:28:18,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2019-12-07 17:28:18,582 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10 [2019-12-07 17:28:18,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:28:18,582 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2019-12-07 17:28:18,583 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 17:28:18,583 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2019-12-07 17:28:18,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-07 17:28:18,584 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 17:28:18,584 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 17:28:18,584 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 17:28:18,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 17:28:18,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1521841779, now seen corresponding path program 1 times [2019-12-07 17:28:18,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 17:28:18,584 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160513025] [2019-12-07 17:28:18,585 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 17:28:18,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:28:18,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:28:18,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:28:18,648 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-07 17:28:18,648 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160513025] [2019-12-07 17:28:18,648 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022844074] [2019-12-07 17:28:18,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2ab6cf76-80f5-4df7-a9ad-5121fdc2c64e/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:28:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 17:28:18,673 INFO L264 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 17:28:18,677 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 17:28:18,719 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-07 17:28:18,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 17:28:18,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2019-12-07 17:28:18,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883011035] [2019-12-07 17:28:18,721 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-07 17:28:18,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 17:28:18,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-07 17:28:18,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-12-07 17:28:18,722 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 7 states. [2019-12-07 17:28:18,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 17:28:18,734 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2019-12-07 17:28:18,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 17:28:18,735 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2019-12-07 17:28:18,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 17:28:18,735 INFO L225 Difference]: With dead ends: 15 [2019-12-07 17:28:18,735 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 17:28:18,736 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-12-07 17:28:18,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 17:28:18,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 17:28:18,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 17:28:18,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 17:28:18,736 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2019-12-07 17:28:18,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 17:28:18,737 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 17:28:18,737 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-07 17:28:18,737 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 17:28:18,737 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 17:28:18,937 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 17:28:18,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 17:28:18,963 INFO L246 CegarLoopResult]: For program point hanoiEXIT(lines 18 23) no Hoare annotation was computed. [2019-12-07 17:28:18,963 INFO L249 CegarLoopResult]: At program point hanoiENTRY(lines 18 23) the Hoare annotation is: true [2019-12-07 17:28:18,963 INFO L246 CegarLoopResult]: For program point hanoiFINAL(lines 18 23) no Hoare annotation was computed. [2019-12-07 17:28:18,964 INFO L249 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: true [2019-12-07 17:28:18,964 INFO L246 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2019-12-07 17:28:18,964 INFO L246 CegarLoopResult]: For program point L19(lines 19 21) no Hoare annotation was computed. [2019-12-07 17:28:18,964 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 17:28:18,964 INFO L246 CegarLoopResult]: For program point L32(lines 32 36) no Hoare annotation was computed. [2019-12-07 17:28:18,965 INFO L242 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: (<= 1 ULTIMATE.start_main_~n~0) [2019-12-07 17:28:18,965 INFO L246 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed. [2019-12-07 17:28:18,965 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 17:28:18,965 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 17:28:18,965 INFO L246 CegarLoopResult]: For program point L28(lines 28 30) no Hoare annotation was computed. [2019-12-07 17:28:18,965 INFO L249 CegarLoopResult]: At program point L26(lines 26 37) the Hoare annotation is: true [2019-12-07 17:28:18,966 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 35) no Hoare annotation was computed. [2019-12-07 17:28:18,966 INFO L246 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2019-12-07 17:28:18,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 05:28:18 BoogieIcfgContainer [2019-12-07 17:28:18,977 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 17:28:18,978 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 17:28:18,978 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 17:28:18,978 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 17:28:18,979 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 05:28:18" (3/4) ... [2019-12-07 17:28:18,982 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 17:28:18,988 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure hanoi [2019-12-07 17:28:18,991 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-12-07 17:28:18,991 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 17:28:19,018 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2ab6cf76-80f5-4df7-a9ad-5121fdc2c64e/bin/uautomizer/witness.graphml [2019-12-07 17:28:19,018 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 17:28:19,019 INFO L168 Benchmark]: Toolchain (without parser) took 1071.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 946.3 MB in the beginning and 1.0 GB in the end (delta: -73.5 MB). Peak memory consumption was 27.7 MB. Max. memory is 11.5 GB. [2019-12-07 17:28:19,020 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:28:19,020 INFO L168 Benchmark]: CACSL2BoogieTranslator took 176.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 946.3 MB in the beginning and 1.1 GB in the end (delta: -149.7 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2019-12-07 17:28:19,021 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.01 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:28:19,021 INFO L168 Benchmark]: Boogie Preprocessor took 10.43 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 17:28:19,021 INFO L168 Benchmark]: RCFGBuilder took 135.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-12-07 17:28:19,022 INFO L168 Benchmark]: TraceAbstraction took 684.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 54.3 MB). Peak memory consumption was 54.3 MB. Max. memory is 11.5 GB. [2019-12-07 17:28:19,022 INFO L168 Benchmark]: Witness Printer took 40.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 17:28:19,025 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 961.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 176.10 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 946.3 MB in the beginning and 1.1 GB in the end (delta: -149.7 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.01 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.43 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 135.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 684.49 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 54.3 MB). Peak memory consumption was 54.3 MB. Max. memory is 11.5 GB. * Witness Printer took 40.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 35]: 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: 26]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 16 locations, 1 error locations. Result: SAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 30 SDtfs, 12 SDslu, 100 SDs, 0 SdLazy, 25 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 6 PreInvPairs, 9 NumberOfFragments, 6 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 1041 SizeOfPredicates, 1 NumberOfNonLiveVariables, 41 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 6/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...