./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted/McCarthy91_Recursion_true-no-overflow_true-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1d585fc3-d6b7-4191-a7ee-0f809af9f963/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1d585fc3-d6b7-4191-a7ee-0f809af9f963/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1d585fc3-d6b7-4191-a7ee-0f809af9f963/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1d585fc3-d6b7-4191-a7ee-0f809af9f963/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/McCarthy91_Recursion_true-no-overflow_true-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_1d585fc3-d6b7-4191-a7ee-0f809af9f963/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1d585fc3-d6b7-4191-a7ee-0f809af9f963/bin-2019/ukojak --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 871be16186d4378aec884efd2352a47ca4eb57bc .................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 13:48:47,260 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:48:47,262 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:48:47,270 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:48:47,270 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:48:47,271 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:48:47,271 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:48:47,273 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:48:47,274 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:48:47,274 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:48:47,275 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:48:47,275 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:48:47,276 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:48:47,277 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:48:47,277 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:48:47,278 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:48:47,278 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:48:47,280 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:48:47,281 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:48:47,282 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:48:47,283 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:48:47,284 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:48:47,285 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:48:47,286 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:48:47,286 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:48:47,286 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:48:47,287 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:48:47,288 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:48:47,289 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:48:47,289 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:48:47,289 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:48:47,290 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:48:47,290 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:48:47,290 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:48:47,291 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:48:47,292 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:48:47,292 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1d585fc3-d6b7-4191-a7ee-0f809af9f963/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-11-18 13:48:47,301 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:48:47,301 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:48:47,302 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:48:47,302 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 13:48:47,303 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 13:48:47,303 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 13:48:47,303 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:48:47,303 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 13:48:47,303 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:48:47,303 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:48:47,303 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:48:47,303 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:48:47,304 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:48:47,304 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-18 13:48:47,304 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:48:47,304 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:48:47,304 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:48:47,304 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 13:48:47,304 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 13:48:47,304 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:48:47,305 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:48:47,305 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 13:48:47,305 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:48:47,305 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:48:47,305 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:48:47,305 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 13:48:47,305 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:48:47,305 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 13:48:47,306 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_1d585fc3-d6b7-4191-a7ee-0f809af9f963/bin-2019/ukojak 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 -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 871be16186d4378aec884efd2352a47ca4eb57bc [2018-11-18 13:48:47,330 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:48:47,340 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:48:47,342 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:48:47,343 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:48:47,344 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:48:47,344 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1d585fc3-d6b7-4191-a7ee-0f809af9f963/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted/McCarthy91_Recursion_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-18 13:48:47,391 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1d585fc3-d6b7-4191-a7ee-0f809af9f963/bin-2019/ukojak/data/f26405458/8a304727ce5e4d80b749f477f087ff34/FLAGc335b9108 [2018-11-18 13:48:47,718 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:48:47,718 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1d585fc3-d6b7-4191-a7ee-0f809af9f963/sv-benchmarks/c/termination-crafted/McCarthy91_Recursion_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-18 13:48:47,722 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1d585fc3-d6b7-4191-a7ee-0f809af9f963/bin-2019/ukojak/data/f26405458/8a304727ce5e4d80b749f477f087ff34/FLAGc335b9108 [2018-11-18 13:48:48,145 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1d585fc3-d6b7-4191-a7ee-0f809af9f963/bin-2019/ukojak/data/f26405458/8a304727ce5e4d80b749f477f087ff34 [2018-11-18 13:48:48,147 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:48:48,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:48:48,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:48:48,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:48:48,152 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:48:48,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:48:48" (1/1) ... [2018-11-18 13:48:48,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d5705f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:48, skipping insertion in model container [2018-11-18 13:48:48,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:48:48" (1/1) ... [2018-11-18 13:48:48,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:48:48,169 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:48:48,268 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:48:48,270 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:48:48,279 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:48:48,287 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:48:48,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:48 WrapperNode [2018-11-18 13:48:48,287 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:48:48,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:48:48,288 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:48:48,288 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:48:48,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:48" (1/1) ... [2018-11-18 13:48:48,296 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:48" (1/1) ... [2018-11-18 13:48:48,306 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:48:48,307 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:48:48,307 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:48:48,307 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:48:48,312 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:48" (1/1) ... [2018-11-18 13:48:48,312 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:48" (1/1) ... [2018-11-18 13:48:48,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:48" (1/1) ... [2018-11-18 13:48:48,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:48" (1/1) ... [2018-11-18 13:48:48,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:48" (1/1) ... [2018-11-18 13:48:48,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:48" (1/1) ... [2018-11-18 13:48:48,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:48" (1/1) ... [2018-11-18 13:48:48,317 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:48:48,318 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:48:48,318 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:48:48,318 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:48:48,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:48:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1d585fc3-d6b7-4191-a7ee-0f809af9f963/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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:10000 [2018-11-18 13:48:48,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:48:48,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:48:48,412 INFO L130 BoogieDeclarations]: Found specification of procedure mc91 [2018-11-18 13:48:48,412 INFO L138 BoogieDeclarations]: Found implementation of procedure mc91 [2018-11-18 13:48:48,549 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:48:48,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:48:48 BoogieIcfgContainer [2018-11-18 13:48:48,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:48:48,550 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 13:48:48,550 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 13:48:48,557 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 13:48:48,557 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:48:48" (1/1) ... [2018-11-18 13:48:48,566 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:48:48,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:48:48,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 20 states and 22 transitions. [2018-11-18 13:48:48,599 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-18 13:48:48,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-18 13:48:48,600 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:48:48,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:48,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:48:48,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:48:48,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 19 states and 21 transitions. [2018-11-18 13:48:48,707 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-18 13:48:48,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-18 13:48:48,707 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:48:48,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:48,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:48:48,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:48:48,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 26 transitions. [2018-11-18 13:48:48,830 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2018-11-18 13:48:48,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-18 13:48:48,830 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:48:48,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:48,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:48:49,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:48:49,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 26 states and 32 transitions. [2018-11-18 13:48:49,085 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2018-11-18 13:48:49,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-18 13:48:49,088 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:48:49,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:49,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:48:49,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:48:49,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 25 states and 31 transitions. [2018-11-18 13:48:49,137 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2018-11-18 13:48:49,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 13:48:49,140 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:48:49,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:49,202 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:48:49,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:48:49,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 25 states and 30 transitions. [2018-11-18 13:48:49,254 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2018-11-18 13:48:49,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 13:48:49,254 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:48:49,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:49,282 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:48:49,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:48:49,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 25 states and 29 transitions. [2018-11-18 13:48:49,337 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2018-11-18 13:48:49,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 13:48:49,337 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:48:49,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:49,375 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 13:48:49,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:48:49,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 24 transitions. [2018-11-18 13:48:49,416 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2018-11-18 13:48:49,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 13:48:49,417 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 13:48:49,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:48:49,451 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 13:48:49,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 13:48:49,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 16 states and 18 transitions. [2018-11-18 13:48:49,513 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-11-18 13:48:49,513 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 13:48:49,513 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2018-11-18 13:48:49,521 INFO L775 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2018-11-18 13:48:49,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 01:48:49 ImpRootNode [2018-11-18 13:48:49,544 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 13:48:49,544 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:48:49,544 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:48:49,545 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:48:49,545 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:48:48" (3/4) ... [2018-11-18 13:48:49,548 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 13:48:49,552 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure mc91 [2018-11-18 13:48:49,555 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-18 13:48:49,555 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 13:48:49,555 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 13:48:49,584 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1d585fc3-d6b7-4191-a7ee-0f809af9f963/bin-2019/ukojak/witness.graphml [2018-11-18 13:48:49,585 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:48:49,585 INFO L168 Benchmark]: Toolchain (without parser) took 1437.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 959.1 MB in the beginning and 952.9 MB in the end (delta: 6.3 MB). Peak memory consumption was 124.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:48:49,586 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:48:49,587 INFO L168 Benchmark]: CACSL2BoogieTranslator took 138.48 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:48:49,587 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.57 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:48:49,588 INFO L168 Benchmark]: Boogie Preprocessor took 10.84 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:48:49,588 INFO L168 Benchmark]: RCFGBuilder took 232.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -151.6 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2018-11-18 13:48:49,588 INFO L168 Benchmark]: CodeCheck took 993.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 956.3 MB in the end (delta: 141.0 MB). Peak memory consumption was 141.0 MB. Max. memory is 11.5 GB. [2018-11-18 13:48:49,589 INFO L168 Benchmark]: Witness Printer took 40.41 ms. Allocated memory is still 1.1 GB. Free memory was 956.3 MB in the beginning and 952.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:48:49,591 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 23 locations, 4 error locations. SAFE Result, 0.9s OverallTime, 9 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1740 SDtfs, 888 SDslu, 0 SDs, 0 SdLazy, 5126 SolverSat, 1614 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 607 GetRequests, 553 SyntacticMatches, 16 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 90 NumberOfCodeBlocks, 90 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 2380 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 41/41 InterpolantCoveringCapability, 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 10]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 10]: 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 * 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 138.48 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.57 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.84 ms. Allocated memory is still 1.0 GB. Free memory is still 945.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 232.32 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 118.5 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -151.6 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * CodeCheck took 993.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 956.3 MB in the end (delta: 141.0 MB). Peak memory consumption was 141.0 MB. Max. memory is 11.5 GB. * Witness Printer took 40.41 ms. Allocated memory is still 1.1 GB. Free memory was 956.3 MB in the beginning and 952.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...