./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.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 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_386c39f6-1b74-4be1-8756-5bb9ed5e8c64/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_386c39f6-1b74-4be1-8756-5bb9ed5e8c64/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_386c39f6-1b74-4be1-8756-5bb9ed5e8c64/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_386c39f6-1b74-4be1-8756-5bb9ed5e8c64/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_386c39f6-1b74-4be1-8756-5bb9ed5e8c64/bin-2019/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_386c39f6-1b74-4be1-8756-5bb9ed5e8c64/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 0.1.23-0cd3be1 [2018-11-28 12:50:26,505 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:50:26,506 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:50:26,514 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:50:26,514 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:50:26,515 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:50:26,515 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:50:26,516 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:50:26,517 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:50:26,518 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:50:26,519 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:50:26,519 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:50:26,519 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:50:26,520 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:50:26,521 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:50:26,521 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:50:26,522 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:50:26,523 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:50:26,524 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:50:26,525 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:50:26,526 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:50:26,527 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:50:26,529 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:50:26,529 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:50:26,529 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:50:26,530 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:50:26,530 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:50:26,531 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:50:26,531 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:50:26,532 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:50:26,532 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:50:26,533 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:50:26,533 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:50:26,533 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:50:26,534 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:50:26,535 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:50:26,535 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_386c39f6-1b74-4be1-8756-5bb9ed5e8c64/bin-2019/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2018-11-28 12:50:26,545 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:50:26,545 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:50:26,546 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:50:26,546 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:50:26,546 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:50:26,546 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:50:26,546 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:50:26,547 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:50:26,547 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:50:26,547 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 12:50:26,547 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:50:26,547 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:50:26,547 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:50:26,547 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:50:26,547 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:50:26,547 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:50:26,548 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 12:50:26,548 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:50:26,548 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:50:26,548 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:50:26,548 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:50:26,548 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:50:26,548 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:50:26,549 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:50:26,549 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:50:26,549 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:50:26,549 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:50:26,549 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:50:26,549 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:50:26,549 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:50:26,549 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:50:26,549 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:50:26,549 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_386c39f6-1b74-4be1-8756-5bb9ed5e8c64/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 [2018-11-28 12:50:26,575 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:50:26,583 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:50:26,586 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:50:26,587 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:50:26,587 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:50:26,588 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_386c39f6-1b74-4be1-8756-5bb9ed5e8c64/bin-2019/uautomizer/../../sv-benchmarks/c/recursive/gcd01_true-unreach-call_true-no-overflow_true-termination.c [2018-11-28 12:50:26,630 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_386c39f6-1b74-4be1-8756-5bb9ed5e8c64/bin-2019/uautomizer/data/cd7a7c765/2c1ebaf2ccae4066823cf85bdcd20416/FLAGf5470b5f1 [2018-11-28 12:50:27,008 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:50:27,008 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_386c39f6-1b74-4be1-8756-5bb9ed5e8c64/sv-benchmarks/c/recursive/gcd01_true-unreach-call_true-no-overflow_true-termination.c [2018-11-28 12:50:27,012 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_386c39f6-1b74-4be1-8756-5bb9ed5e8c64/bin-2019/uautomizer/data/cd7a7c765/2c1ebaf2ccae4066823cf85bdcd20416/FLAGf5470b5f1 [2018-11-28 12:50:27,019 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_386c39f6-1b74-4be1-8756-5bb9ed5e8c64/bin-2019/uautomizer/data/cd7a7c765/2c1ebaf2ccae4066823cf85bdcd20416 [2018-11-28 12:50:27,021 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:50:27,022 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:50:27,023 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:50:27,023 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:50:27,025 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:50:27,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:50:27" (1/1) ... [2018-11-28 12:50:27,027 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28035eee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:50:27, skipping insertion in model container [2018-11-28 12:50:27,027 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:50:27" (1/1) ... [2018-11-28 12:50:27,032 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:50:27,041 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:50:27,126 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:50:27,128 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:50:27,139 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:50:27,147 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:50:27,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:50:27 WrapperNode [2018-11-28 12:50:27,148 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:50:27,148 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:50:27,148 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:50:27,148 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:50:27,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:50:27" (1/1) ... [2018-11-28 12:50:27,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:50:27" (1/1) ... [2018-11-28 12:50:27,162 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:50:27,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:50:27,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:50:27,162 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:50:27,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:50:27" (1/1) ... [2018-11-28 12:50:27,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:50:27" (1/1) ... [2018-11-28 12:50:27,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:50:27" (1/1) ... [2018-11-28 12:50:27,169 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:50:27" (1/1) ... [2018-11-28 12:50:27,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:50:27" (1/1) ... [2018-11-28 12:50:27,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:50:27" (1/1) ... [2018-11-28 12:50:27,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:50:27" (1/1) ... [2018-11-28 12:50:27,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:50:27,175 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:50:27,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:50:27,175 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:50:27,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:50:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_386c39f6-1b74-4be1-8756-5bb9ed5e8c64/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 [2018-11-28 12:50:27,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:50:27,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:50:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure gcd [2018-11-28 12:50:27,261 INFO L138 BoogieDeclarations]: Found implementation of procedure gcd [2018-11-28 12:50:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:50:27,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:50:27,261 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:50:27,261 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:50:27,398 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:50:27,399 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 12:50:27,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:50:27 BoogieIcfgContainer [2018-11-28 12:50:27,399 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:50:27,399 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:50:27,399 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:50:27,401 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:50:27,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:50:27" (1/3) ... [2018-11-28 12:50:27,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74cc2ef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:50:27, skipping insertion in model container [2018-11-28 12:50:27,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:50:27" (2/3) ... [2018-11-28 12:50:27,403 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74cc2ef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:50:27, skipping insertion in model container [2018-11-28 12:50:27,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:50:27" (3/3) ... [2018-11-28 12:50:27,404 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd01_true-unreach-call_true-no-overflow_true-termination.c [2018-11-28 12:50:27,410 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:50:27,415 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-28 12:50:27,425 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-28 12:50:27,446 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:50:27,447 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:50:27,447 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:50:27,447 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:50:27,447 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:50:27,447 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:50:27,447 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:50:27,448 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:50:27,448 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:50:27,461 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2018-11-28 12:50:27,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 12:50:27,464 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:50:27,465 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:50:27,467 INFO L423 AbstractCegarLoop]: === Iteration 1 === [gcdErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:50:27,472 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:50:27,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1905154814, now seen corresponding path program 1 times [2018-11-28 12:50:27,473 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:50:27,474 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:50:27,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:50:27,503 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:50:27,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:50:27,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:50:27,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:50:27,665 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:50:27,665 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 12:50:27,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:50:27,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:50:27,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:50:27,680 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 6 states. [2018-11-28 12:50:27,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:50:27,831 INFO L93 Difference]: Finished difference Result 41 states and 49 transitions. [2018-11-28 12:50:27,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:50:27,832 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-11-28 12:50:27,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:50:27,837 INFO L225 Difference]: With dead ends: 41 [2018-11-28 12:50:27,837 INFO L226 Difference]: Without dead ends: 20 [2018-11-28 12:50:27,839 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-28 12:50:27,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-28 12:50:27,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-11-28 12:50:27,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-28 12:50:27,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2018-11-28 12:50:27,861 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 13 [2018-11-28 12:50:27,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:50:27,861 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2018-11-28 12:50:27,861 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:50:27,861 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2018-11-28 12:50:27,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-28 12:50:27,862 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:50:27,862 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:50:27,862 INFO L423 AbstractCegarLoop]: === Iteration 2 === [gcdErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 12:50:27,862 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:50:27,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1905155038, now seen corresponding path program 1 times [2018-11-28 12:50:27,863 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:50:27,863 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:50:27,863 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:50:27,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:50:27,864 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:50:27,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:50:27,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:50:27,916 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:50:27,916 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-28 12:50:27,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 12:50:27,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 12:50:27,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 12:50:27,918 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 6 states. [2018-11-28 12:50:27,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:50:27,973 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2018-11-28 12:50:27,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 12:50:27,973 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-11-28 12:50:27,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:50:27,974 INFO L225 Difference]: With dead ends: 20 [2018-11-28 12:50:27,974 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 12:50:27,975 INFO L631 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 [2018-11-28 12:50:27,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 12:50:27,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 12:50:27,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 12:50:27,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 12:50:27,976 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-11-28 12:50:27,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:50:27,976 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:50:27,976 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 12:50:27,976 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:50:27,976 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 12:50:27,979 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 12:50:28,060 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 12:50:28,060 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:50:28,060 INFO L448 ceAbstractionStarter]: For program point gcdErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-28 12:50:28,060 INFO L448 ceAbstractionStarter]: For program point gcdFINAL(lines 15 26) no Hoare annotation was computed. [2018-11-28 12:50:28,060 INFO L448 ceAbstractionStarter]: For program point gcdErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-28 12:50:28,060 INFO L448 ceAbstractionStarter]: For program point gcdEXIT(lines 15 26) no Hoare annotation was computed. [2018-11-28 12:50:28,060 INFO L448 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-11-28 12:50:28,061 INFO L448 ceAbstractionStarter]: For program point gcdErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2018-11-28 12:50:28,061 INFO L448 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2018-11-28 12:50:28,061 INFO L451 ceAbstractionStarter]: At program point gcdENTRY(lines 15 26) the Hoare annotation is: true [2018-11-28 12:50:28,061 INFO L448 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-11-28 12:50:28,061 INFO L444 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|)) [2018-11-28 12:50:28,061 INFO L448 ceAbstractionStarter]: For program point L22(lines 22 24) no Hoare annotation was computed. [2018-11-28 12:50:28,061 INFO L448 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-11-28 12:50:28,061 INFO L448 ceAbstractionStarter]: For program point L25-3(line 25) no Hoare annotation was computed. [2018-11-28 12:50:28,061 INFO L444 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|)) [2018-11-28 12:50:28,062 INFO L448 ceAbstractionStarter]: For program point L23-3(line 23) no Hoare annotation was computed. [2018-11-28 12:50:28,062 INFO L448 ceAbstractionStarter]: For program point gcdErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2018-11-28 12:50:28,062 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 21) no Hoare annotation was computed. [2018-11-28 12:50:28,062 INFO L448 ceAbstractionStarter]: For program point L16(lines 16 18) no Hoare annotation was computed. [2018-11-28 12:50:28,062 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:50:28,062 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 12:50:28,062 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 12:50:28,062 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 12:50:28,062 INFO L448 ceAbstractionStarter]: For program point L30(lines 30 32) no Hoare annotation was computed. [2018-11-28 12:50:28,062 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 28 43) the Hoare annotation is: true [2018-11-28 12:50:28,062 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 28 43) no Hoare annotation was computed. [2018-11-28 12:50:28,063 INFO L448 ceAbstractionStarter]: For program point L39(line 39) no Hoare annotation was computed. [2018-11-28 12:50:28,063 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 42) no Hoare annotation was computed. [2018-11-28 12:50:28,063 INFO L444 ceAbstractionStarter]: At program point L37(line 37) the Hoare annotation is: (and (<= main_~n~0 2147483647) (<= main_~m~0 2147483647)) [2018-11-28 12:50:28,063 INFO L448 ceAbstractionStarter]: For program point L38-1(lines 28 43) no Hoare annotation was computed. [2018-11-28 12:50:28,063 INFO L448 ceAbstractionStarter]: For program point L37-1(line 37) no Hoare annotation was computed. [2018-11-28 12:50:28,063 INFO L448 ceAbstractionStarter]: For program point L34(lines 34 36) no Hoare annotation was computed. [2018-11-28 12:50:28,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:50:28 BoogieIcfgContainer [2018-11-28 12:50:28,065 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:50:28,065 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:50:28,065 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:50:28,066 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:50:28,066 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:50:27" (3/4) ... [2018-11-28 12:50:28,069 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 12:50:28,073 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 12:50:28,074 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure gcd [2018-11-28 12:50:28,074 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 12:50:28,077 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-28 12:50:28,077 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 12:50:28,078 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 12:50:28,110 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_386c39f6-1b74-4be1-8756-5bb9ed5e8c64/bin-2019/uautomizer/witness.graphml [2018-11-28 12:50:28,110 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:50:28,111 INFO L168 Benchmark]: Toolchain (without parser) took 1088.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 952.2 MB in the beginning and 1.0 GB in the end (delta: -84.1 MB). Peak memory consumption was 38.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:50:28,112 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:50:28,112 INFO L168 Benchmark]: CACSL2BoogieTranslator took 125.32 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. [2018-11-28 12:50:28,112 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.99 ms. Allocated memory is still 1.0 GB. Free memory is still 941.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:50:28,112 INFO L168 Benchmark]: Boogie Preprocessor took 12.28 ms. Allocated memory is still 1.0 GB. Free memory is still 941.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:50:28,113 INFO L168 Benchmark]: RCFGBuilder took 224.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 941.3 MB in the beginning and 1.1 GB in the end (delta: -167.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:50:28,113 INFO L168 Benchmark]: TraceAbstraction took 665.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 67.2 MB). Peak memory consumption was 67.2 MB. Max. memory is 11.5 GB. [2018-11-28 12:50:28,113 INFO L168 Benchmark]: Witness Printer took 44.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:50:28,117 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 125.32 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.3 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.99 ms. Allocated memory is still 1.0 GB. Free memory is still 941.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.28 ms. Allocated memory is still 1.0 GB. Free memory is still 941.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 224.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 122.7 MB). Free memory was 941.3 MB in the beginning and 1.1 GB in the end (delta: -167.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 665.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 67.2 MB). Peak memory consumption was 67.2 MB. Max. memory is 11.5 GB. * Witness Printer took 44.62 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 25]: 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: 23]: 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, 0.6s 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, 0.1s 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, 0.1s 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...