./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 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e22fd066-a877-4219-893e-f99dd9dcff5d/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e22fd066-a877-4219-893e-f99dd9dcff5d/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e22fd066-a877-4219-893e-f99dd9dcff5d/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e22fd066-a877-4219-893e-f99dd9dcff5d/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_e22fd066-a877-4219-893e-f99dd9dcff5d/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e22fd066-a877-4219-893e-f99dd9dcff5d/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 0.1.23-1dbac8b [2018-10-27 05:16:54,297 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 05:16:54,299 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 05:16:54,308 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 05:16:54,308 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 05:16:54,309 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 05:16:54,310 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 05:16:54,311 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 05:16:54,313 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 05:16:54,314 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 05:16:54,315 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 05:16:54,315 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 05:16:54,315 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 05:16:54,316 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 05:16:54,318 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 05:16:54,318 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 05:16:54,319 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 05:16:54,320 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 05:16:54,322 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 05:16:54,323 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 05:16:54,324 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 05:16:54,325 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 05:16:54,327 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 05:16:54,327 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 05:16:54,327 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 05:16:54,328 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 05:16:54,329 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 05:16:54,330 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 05:16:54,330 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 05:16:54,331 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 05:16:54,332 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 05:16:54,332 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 05:16:54,332 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 05:16:54,332 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 05:16:54,334 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 05:16:54,335 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 05:16:54,335 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e22fd066-a877-4219-893e-f99dd9dcff5d/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-10-27 05:16:54,346 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 05:16:54,346 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 05:16:54,347 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 05:16:54,347 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-10-27 05:16:54,347 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-27 05:16:54,348 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-27 05:16:54,348 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 05:16:54,348 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-27 05:16:54,348 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 05:16:54,348 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 05:16:54,348 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 05:16:54,348 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 05:16:54,348 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 05:16:54,349 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-10-27 05:16:54,350 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 05:16:54,350 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 05:16:54,350 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-10-27 05:16:54,350 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-10-27 05:16:54,351 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 05:16:54,351 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 05:16:54,351 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-10-27 05:16:54,351 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 05:16:54,351 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 05:16:54,351 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 05:16:54,351 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-10-27 05:16:54,352 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 05:16:54,352 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 05:16:54,352 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_e22fd066-a877-4219-893e-f99dd9dcff5d/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 [2018-10-27 05:16:54,380 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 05:16:54,389 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 05:16:54,392 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 05:16:54,393 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 05:16:54,394 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 05:16:54,394 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e22fd066-a877-4219-893e-f99dd9dcff5d/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted/McCarthy91_Recursion_true-no-overflow_true-termination_true-valid-memsafety.c [2018-10-27 05:16:54,442 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e22fd066-a877-4219-893e-f99dd9dcff5d/bin-2019/ukojak/data/00f4ff5b8/8c367a4a55524d47a3a58d6b378a4f59/FLAGf9cc8c44a [2018-10-27 05:16:54,808 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 05:16:54,809 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e22fd066-a877-4219-893e-f99dd9dcff5d/sv-benchmarks/c/termination-crafted/McCarthy91_Recursion_true-no-overflow_true-termination_true-valid-memsafety.c [2018-10-27 05:16:54,814 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e22fd066-a877-4219-893e-f99dd9dcff5d/bin-2019/ukojak/data/00f4ff5b8/8c367a4a55524d47a3a58d6b378a4f59/FLAGf9cc8c44a [2018-10-27 05:16:54,827 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e22fd066-a877-4219-893e-f99dd9dcff5d/bin-2019/ukojak/data/00f4ff5b8/8c367a4a55524d47a3a58d6b378a4f59 [2018-10-27 05:16:54,830 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 05:16:54,831 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 05:16:54,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 05:16:54,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 05:16:54,837 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 05:16:54,838 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:16:54" (1/1) ... [2018-10-27 05:16:54,840 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17c48233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:54, skipping insertion in model container [2018-10-27 05:16:54,840 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 05:16:54" (1/1) ... [2018-10-27 05:16:54,846 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 05:16:54,859 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 05:16:54,971 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:16:54,975 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 05:16:54,985 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 05:16:54,993 INFO L193 MainTranslator]: Completed translation [2018-10-27 05:16:54,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:54 WrapperNode [2018-10-27 05:16:54,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 05:16:54,994 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 05:16:54,994 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 05:16:54,994 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 05:16:55,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:54" (1/1) ... [2018-10-27 05:16:55,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:54" (1/1) ... [2018-10-27 05:16:55,022 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 05:16:55,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 05:16:55,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 05:16:55,022 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 05:16:55,030 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:54" (1/1) ... [2018-10-27 05:16:55,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:54" (1/1) ... [2018-10-27 05:16:55,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:54" (1/1) ... [2018-10-27 05:16:55,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:54" (1/1) ... [2018-10-27 05:16:55,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:54" (1/1) ... [2018-10-27 05:16:55,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:54" (1/1) ... [2018-10-27 05:16:55,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:54" (1/1) ... [2018-10-27 05:16:55,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 05:16:55,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 05:16:55,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 05:16:55,038 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 05:16:55,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 05:16:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e22fd066-a877-4219-893e-f99dd9dcff5d/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 [2018-10-27 05:16:55,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 05:16:55,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 05:16:55,198 INFO L130 BoogieDeclarations]: Found specification of procedure mc91 [2018-10-27 05:16:55,198 INFO L138 BoogieDeclarations]: Found implementation of procedure mc91 [2018-10-27 05:16:55,570 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 05:16:55,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:16:55 BoogieIcfgContainer [2018-10-27 05:16:55,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 05:16:55,571 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-10-27 05:16:55,571 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-10-27 05:16:55,582 INFO L276 PluginConnector]: CodeCheck initialized [2018-10-27 05:16:55,582 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:16:55" (1/1) ... [2018-10-27 05:16:55,593 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 05:16:55,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:55,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 20 states and 22 transitions. [2018-10-27 05:16:55,641 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-10-27 05:16:55,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-27 05:16:55,643 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:55,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:55,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:55,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:55,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 19 states and 21 transitions. [2018-10-27 05:16:55,822 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-10-27 05:16:55,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-10-27 05:16:55,823 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:55,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:55,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:56,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:56,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 26 transitions. [2018-10-27 05:16:56,058 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2018-10-27 05:16:56,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-27 05:16:56,059 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:56,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:56,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:56,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:56,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 26 states and 32 transitions. [2018-10-27 05:16:56,826 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2018-10-27 05:16:56,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-10-27 05:16:56,829 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:56,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:56,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:56,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 25 states and 31 transitions. [2018-10-27 05:16:56,917 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2018-10-27 05:16:56,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-27 05:16:56,919 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:56,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:56,995 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:57,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:57,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 25 states and 30 transitions. [2018-10-27 05:16:57,052 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2018-10-27 05:16:57,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-27 05:16:57,053 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:57,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:57,112 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 05:16:57,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:57,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 25 states and 29 transitions. [2018-10-27 05:16:57,207 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2018-10-27 05:16:57,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-27 05:16:57,207 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:57,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:57,266 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-10-27 05:16:57,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:57,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 24 transitions. [2018-10-27 05:16:57,323 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2018-10-27 05:16:57,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-27 05:16:57,323 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-10-27 05:16:57,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 05:16:57,368 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-10-27 05:16:57,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-10-27 05:16:57,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 16 states and 18 transitions. [2018-10-27 05:16:57,485 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-10-27 05:16:57,485 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 05:16:57,486 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2018-10-27 05:16:57,493 INFO L778 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2018-10-27 05:16:57,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 27.10 05:16:57 ImpRootNode [2018-10-27 05:16:57,555 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-10-27 05:16:57,555 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 05:16:57,555 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 05:16:57,556 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 05:16:57,556 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 05:16:55" (3/4) ... [2018-10-27 05:16:57,559 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 05:16:57,565 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure mc91 [2018-10-27 05:16:57,569 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-10-27 05:16:57,569 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-27 05:16:57,569 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-27 05:16:57,606 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e22fd066-a877-4219-893e-f99dd9dcff5d/bin-2019/ukojak/witness.graphml [2018-10-27 05:16:57,606 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 05:16:57,607 INFO L168 Benchmark]: Toolchain (without parser) took 2776.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 961.2 MB in the beginning and 994.4 MB in the end (delta: -33.2 MB). Peak memory consumption was 113.6 MB. Max. memory is 11.5 GB. [2018-10-27 05:16:57,608 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:16:57,608 INFO L168 Benchmark]: CACSL2BoogieTranslator took 160.98 ms. Allocated memory is still 1.0 GB. Free memory was 961.2 MB in the beginning and 950.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-27 05:16:57,609 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.55 ms. Allocated memory is still 1.0 GB. Free memory is still 950.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 05:16:57,609 INFO L168 Benchmark]: Boogie Preprocessor took 14.60 ms. Allocated memory is still 1.0 GB. Free memory was 950.4 MB in the beginning and 947.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 05:16:57,609 INFO L168 Benchmark]: RCFGBuilder took 533.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 947.7 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2018-10-27 05:16:57,610 INFO L168 Benchmark]: CodeCheck took 1983.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 997.0 MB in the end (delta: 138.5 MB). Peak memory consumption was 138.5 MB. Max. memory is 11.5 GB. [2018-10-27 05:16:57,610 INFO L168 Benchmark]: Witness Printer took 50.85 ms. Allocated memory is still 1.2 GB. Free memory was 997.0 MB in the beginning and 994.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 05:16:57,613 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, 1.8s 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, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 602 GetRequests, 548 SyntacticMatches, 16 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 85 NumberOfCodeBlocks, 85 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 77 ConstructedInterpolants, 0 QuantifiedInterpolants, 2145 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 32/32 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: 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: 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 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 160.98 ms. Allocated memory is still 1.0 GB. Free memory was 961.2 MB in the beginning and 950.4 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 27.55 ms. Allocated memory is still 1.0 GB. Free memory is still 950.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.60 ms. Allocated memory is still 1.0 GB. Free memory was 950.4 MB in the beginning and 947.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 533.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.8 MB). Free memory was 947.7 MB in the beginning and 1.1 GB in the end (delta: -187.8 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. * CodeCheck took 1983.75 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 997.0 MB in the end (delta: 138.5 MB). Peak memory consumption was 138.5 MB. Max. memory is 11.5 GB. * Witness Printer took 50.85 ms. Allocated memory is still 1.2 GB. Free memory was 997.0 MB in the beginning and 994.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...