./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/recursive/gcd01_true-unreach-call_true-no-overflow_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c38f5a84-f31d-4984-880a-bb586bdf34ca/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c38f5a84-f31d-4984-880a-bb586bdf34ca/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c38f5a84-f31d-4984-880a-bb586bdf34ca/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c38f5a84-f31d-4984-880a-bb586bdf34ca/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive/gcd01_true-unreach-call_true-no-overflow_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c38f5a84-f31d-4984-880a-bb586bdf34ca/bin-2019/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c38f5a84-f31d-4984-880a-bb586bdf34ca/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0497b69437c9ebb889888bdb31aaefcc8eaad029 ...................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 04:13:01,357 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 04:13:01,358 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 04:13:01,367 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 04:13:01,367 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 04:13:01,368 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 04:13:01,368 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 04:13:01,370 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 04:13:01,371 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 04:13:01,371 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 04:13:01,372 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 04:13:01,372 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 04:13:01,373 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 04:13:01,373 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 04:13:01,374 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 04:13:01,374 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 04:13:01,375 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 04:13:01,376 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 04:13:01,377 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 04:13:01,378 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 04:13:01,379 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 04:13:01,380 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 04:13:01,381 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 04:13:01,381 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 04:13:01,381 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 04:13:01,382 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 04:13:01,383 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 04:13:01,383 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 04:13:01,384 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 04:13:01,384 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 04:13:01,385 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 04:13:01,385 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 04:13:01,385 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 04:13:01,385 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 04:13:01,386 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 04:13:01,386 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 04:13:01,387 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c38f5a84-f31d-4984-880a-bb586bdf34ca/bin-2019/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2018-11-10 04:13:01,396 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 04:13:01,396 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 04:13:01,396 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 04:13:01,397 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 04:13:01,397 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 04:13:01,397 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 04:13:01,397 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 04:13:01,397 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 04:13:01,398 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 04:13:01,398 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 04:13:01,398 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 04:13:01,398 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 04:13:01,398 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 04:13:01,398 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 04:13:01,398 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 04:13:01,399 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 04:13:01,399 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 04:13:01,399 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 04:13:01,399 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 04:13:01,399 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 04:13:01,399 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 04:13:01,399 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 04:13:01,400 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 04:13:01,400 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 04:13:01,400 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 04:13:01,400 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 04:13:01,400 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 04:13:01,400 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 04:13:01,400 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 04:13:01,400 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 04:13:01,401 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 04:13:01,401 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_c38f5a84-f31d-4984-880a-bb586bdf34ca/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 ! overflow) ) 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 -> 0497b69437c9ebb889888bdb31aaefcc8eaad029 [2018-11-10 04:13:01,427 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 04:13:01,436 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 04:13:01,438 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 04:13:01,439 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 04:13:01,440 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 04:13:01,440 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c38f5a84-f31d-4984-880a-bb586bdf34ca/bin-2019/uautomizer/../../sv-benchmarks/c/recursive/gcd01_true-unreach-call_true-no-overflow_true-termination.c [2018-11-10 04:13:01,486 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c38f5a84-f31d-4984-880a-bb586bdf34ca/bin-2019/uautomizer/data/850cbd4f1/2a4e9df101274c5ab9f73aeea88d4311/FLAG89c3a3fb2 [2018-11-10 04:13:01,838 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 04:13:01,839 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c38f5a84-f31d-4984-880a-bb586bdf34ca/sv-benchmarks/c/recursive/gcd01_true-unreach-call_true-no-overflow_true-termination.c [2018-11-10 04:13:01,844 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c38f5a84-f31d-4984-880a-bb586bdf34ca/bin-2019/uautomizer/data/850cbd4f1/2a4e9df101274c5ab9f73aeea88d4311/FLAG89c3a3fb2 [2018-11-10 04:13:01,855 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c38f5a84-f31d-4984-880a-bb586bdf34ca/bin-2019/uautomizer/data/850cbd4f1/2a4e9df101274c5ab9f73aeea88d4311 [2018-11-10 04:13:01,858 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 04:13:01,859 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 04:13:01,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 04:13:01,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 04:13:01,863 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 04:13:01,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:13:01" (1/1) ... [2018-11-10 04:13:01,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79e7f328 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:13:01, skipping insertion in model container [2018-11-10 04:13:01,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:13:01" (1/1) ... [2018-11-10 04:13:01,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 04:13:01,888 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 04:13:02,011 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:13:02,014 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 04:13:02,028 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:13:02,038 INFO L193 MainTranslator]: Completed translation [2018-11-10 04:13:02,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:13:02 WrapperNode [2018-11-10 04:13:02,039 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 04:13:02,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 04:13:02,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 04:13:02,039 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 04:13:02,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:13:02" (1/1) ... [2018-11-10 04:13:02,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:13:02" (1/1) ... [2018-11-10 04:13:02,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:13:02" (1/1) ... [2018-11-10 04:13:02,054 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:13:02" (1/1) ... [2018-11-10 04:13:02,056 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:13:02" (1/1) ... [2018-11-10 04:13:02,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:13:02" (1/1) ... [2018-11-10 04:13:02,059 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:13:02" (1/1) ... [2018-11-10 04:13:02,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 04:13:02,060 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 04:13:02,060 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 04:13:02,060 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 04:13:02,061 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:13:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c38f5a84-f31d-4984-880a-bb586bdf34ca/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 [2018-11-10 04:13:02,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 04:13:02,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 04:13:02,140 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd [2018-11-10 04:13:02,140 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 04:13:02,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-10 04:13:02,140 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 04:13:02,140 INFO L130 BoogieDeclarations]: Found specification of procedure gcd [2018-11-10 04:13:02,140 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 04:13:02,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 04:13:02,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 04:13:02,280 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 04:13:02,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:13:02 BoogieIcfgContainer [2018-11-10 04:13:02,281 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 04:13:02,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 04:13:02,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 04:13:02,284 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 04:13:02,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 04:13:01" (1/3) ... [2018-11-10 04:13:02,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@149c96b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:13:02, skipping insertion in model container [2018-11-10 04:13:02,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:13:02" (2/3) ... [2018-11-10 04:13:02,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@149c96b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:13:02, skipping insertion in model container [2018-11-10 04:13:02,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:13:02" (3/3) ... [2018-11-10 04:13:02,287 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd01_true-unreach-call_true-no-overflow_true-termination.c [2018-11-10 04:13:02,295 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 04:13:02,301 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-10 04:13:02,314 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-10 04:13:02,338 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 04:13:02,339 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 04:13:02,339 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 04:13:02,339 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 04:13:02,339 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 04:13:02,339 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 04:13:02,339 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 04:13:02,339 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 04:13:02,339 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 04:13:02,353 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-11-10 04:13:02,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-10 04:13:02,357 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:13:02,358 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:13:02,360 INFO L424 AbstractCegarLoop]: === Iteration 1 === [gcdErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 04:13:02,364 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:13:02,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1905154814, now seen corresponding path program 1 times [2018-11-10 04:13:02,366 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:13:02,366 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:13:02,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:13:02,407 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:13:02,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:13:02,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:13:02,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:13:02,497 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:13:02,497 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 04:13:02,500 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 04:13:02,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 04:13:02,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 04:13:02,508 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 6 states. [2018-11-10 04:13:02,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:13:02,658 INFO L93 Difference]: Finished difference Result 41 states and 49 transitions. [2018-11-10 04:13:02,658 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 04:13:02,659 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-11-10 04:13:02,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:13:02,665 INFO L225 Difference]: With dead ends: 41 [2018-11-10 04:13:02,665 INFO L226 Difference]: Without dead ends: 20 [2018-11-10 04:13:02,668 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-10 04:13:02,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-10 04:13:02,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-11-10 04:13:02,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-10 04:13:02,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2018-11-10 04:13:02,691 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 13 [2018-11-10 04:13:02,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:13:02,692 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2018-11-10 04:13:02,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 04:13:02,692 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2018-11-10 04:13:02,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-10 04:13:02,692 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:13:02,693 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:13:02,693 INFO L424 AbstractCegarLoop]: === Iteration 2 === [gcdErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 04:13:02,693 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:13:02,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1905155038, now seen corresponding path program 1 times [2018-11-10 04:13:02,693 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 04:13:02,694 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 04:13:02,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:13:02,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:13:02,695 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:13:02,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:13:02,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:13:02,729 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:13:02,729 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 04:13:02,730 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 04:13:02,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 04:13:02,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-10 04:13:02,731 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 6 states. [2018-11-10 04:13:02,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:13:02,779 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2018-11-10 04:13:02,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 04:13:02,779 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-11-10 04:13:02,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:13:02,780 INFO L225 Difference]: With dead ends: 20 [2018-11-10 04:13:02,780 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 04:13:02,781 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-10 04:13:02,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 04:13:02,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 04:13:02,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 04:13:02,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 04:13:02,781 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-11-10 04:13:02,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:13:02,782 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 04:13:02,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 04:13:02,782 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 04:13:02,782 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 04:13:02,786 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 04:13:02,863 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 04:13:02,864 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 04:13:02,864 INFO L425 ceAbstractionStarter]: For program point gcdFINAL(lines 15 26) no Hoare annotation was computed. [2018-11-10 04:13:02,864 INFO L425 ceAbstractionStarter]: For program point gcdErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-10 04:13:02,864 INFO L425 ceAbstractionStarter]: For program point gcdEXIT(lines 15 26) no Hoare annotation was computed. [2018-11-10 04:13:02,864 INFO L425 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-10 04:13:02,864 INFO L425 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2018-11-10 04:13:02,864 INFO L428 ceAbstractionStarter]: At program point gcdENTRY(lines 15 26) the Hoare annotation is: true [2018-11-10 04:13:02,865 INFO L425 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-11-10 04:13:02,865 INFO L421 ceAbstractionStarter]: At program point L25-2(line 25) the Hoare annotation is: (or (< 2147483647 |gcd_#in~y1|) (and (<= gcd_~y2 (+ gcd_~y1 2147483646)) (<= gcd_~y2 2147483647) (<= gcd_~y1 2147483647) (<= gcd_~y1 (+ gcd_~y2 2147483646))) (< 2147483647 |gcd_#in~y2|)) [2018-11-10 04:13:02,865 INFO L425 ceAbstractionStarter]: For program point L22(lines 22 24) no Hoare annotation was computed. [2018-11-10 04:13:02,865 INFO L425 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-11-10 04:13:02,865 INFO L425 ceAbstractionStarter]: For program point L25-3(line 25) no Hoare annotation was computed. [2018-11-10 04:13:02,865 INFO L421 ceAbstractionStarter]: At program point L23-2(line 23) the Hoare annotation is: (or (< 2147483647 |gcd_#in~y1|) (and (<= gcd_~y2 (+ gcd_~y1 2147483646)) (<= gcd_~y2 2147483647) (<= gcd_~y1 2147483647) (<= gcd_~y1 (+ gcd_~y2 2147483646))) (< 2147483647 |gcd_#in~y2|)) [2018-11-10 04:13:02,865 INFO L425 ceAbstractionStarter]: For program point L23-3(line 23) no Hoare annotation was computed. [2018-11-10 04:13:02,865 INFO L425 ceAbstractionStarter]: For program point L19(lines 19 21) no Hoare annotation was computed. [2018-11-10 04:13:02,865 INFO L425 ceAbstractionStarter]: For program point L16(lines 16 18) no Hoare annotation was computed. [2018-11-10 04:13:02,865 INFO L425 ceAbstractionStarter]: For program point gcdErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2018-11-10 04:13:02,866 INFO L425 ceAbstractionStarter]: For program point gcdErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2018-11-10 04:13:02,866 INFO L425 ceAbstractionStarter]: For program point gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-10 04:13:02,866 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 04:13:02,866 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 04:13:02,866 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 04:13:02,866 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 04:13:02,866 INFO L425 ceAbstractionStarter]: For program point L30(lines 30 32) no Hoare annotation was computed. [2018-11-10 04:13:02,866 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 28 43) the Hoare annotation is: true [2018-11-10 04:13:02,866 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 28 43) no Hoare annotation was computed. [2018-11-10 04:13:02,866 INFO L425 ceAbstractionStarter]: For program point L39(line 39) no Hoare annotation was computed. [2018-11-10 04:13:02,866 INFO L425 ceAbstractionStarter]: For program point L38(lines 38 42) no Hoare annotation was computed. [2018-11-10 04:13:02,866 INFO L421 ceAbstractionStarter]: At program point L37(line 37) the Hoare annotation is: (and (<= main_~n~0 2147483647) (<= main_~m~0 2147483647)) [2018-11-10 04:13:02,866 INFO L425 ceAbstractionStarter]: For program point L38-1(lines 28 43) no Hoare annotation was computed. [2018-11-10 04:13:02,866 INFO L425 ceAbstractionStarter]: For program point L37-1(line 37) no Hoare annotation was computed. [2018-11-10 04:13:02,866 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 36) no Hoare annotation was computed. [2018-11-10 04:13:02,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 04:13:02 BoogieIcfgContainer [2018-11-10 04:13:02,869 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 04:13:02,869 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 04:13:02,869 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 04:13:02,869 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 04:13:02,870 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:13:02" (3/4) ... [2018-11-10 04:13:02,873 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 04:13:02,879 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 04:13:02,879 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure gcd [2018-11-10 04:13:02,880 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 04:13:02,883 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-10 04:13:02,883 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 04:13:02,883 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 04:13:02,913 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c38f5a84-f31d-4984-880a-bb586bdf34ca/bin-2019/uautomizer/witness.graphml [2018-11-10 04:13:02,913 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 04:13:02,914 INFO L168 Benchmark]: Toolchain (without parser) took 1055.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 953.8 MB in the beginning and 1.1 GB in the end (delta: -125.6 MB). Peak memory consumption was 42.2 MB. Max. memory is 11.5 GB. [2018-11-10 04:13:02,915 INFO L168 Benchmark]: CDTParser took 0.15 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. [2018-11-10 04:13:02,915 INFO L168 Benchmark]: CACSL2BoogieTranslator took 178.93 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 943.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 04:13:02,916 INFO L168 Benchmark]: Boogie Preprocessor took 20.65 ms. Allocated memory is still 1.0 GB. Free memory is still 943.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:13:02,916 INFO L168 Benchmark]: RCFGBuilder took 220.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 943.0 MB in the beginning and 1.2 GB in the end (delta: -211.1 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-11-10 04:13:02,916 INFO L168 Benchmark]: TraceAbstraction took 587.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 71.4 MB). Peak memory consumption was 71.4 MB. Max. memory is 11.5 GB. [2018-11-10 04:13:02,917 INFO L168 Benchmark]: Witness Printer took 44.45 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-10 04:13:02,918 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 178.93 ms. Allocated memory is still 1.0 GB. Free memory was 953.8 MB in the beginning and 943.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.65 ms. Allocated memory is still 1.0 GB. Free memory is still 943.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 220.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 167.8 MB). Free memory was 943.0 MB in the beginning and 1.2 GB in the end (delta: -211.1 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 587.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 71.4 MB). Peak memory consumption was 71.4 MB. Max. memory is 11.5 GB. * Witness Printer took 44.45 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: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 33 locations, 4 error locations. SAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 29 SDtfs, 69 SDslu, 82 SDs, 0 SdLazy, 95 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 8 LocationsWithAnnotation, 14 PreInvPairs, 14 NumberOfFragments, 64 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 12 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 744 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...