./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Nyala-2lex_true-no-overflow_true-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ca37008e-5b43-4c6f-aed5-699c0ef5daf9/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ca37008e-5b43-4c6f-aed5-699c0ef5daf9/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ca37008e-5b43-4c6f-aed5-699c0ef5daf9/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ca37008e-5b43-4c6f-aed5-699c0ef5daf9/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Nyala-2lex_true-no-overflow_true-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ca37008e-5b43-4c6f-aed5-699c0ef5daf9/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ca37008e-5b43-4c6f-aed5-699c0ef5daf9/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 054e86c0b11592f66f6efc3e0f84c6f8bee49b59 ..................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-01 19:24:38,410 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-01 19:24:38,412 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-01 19:24:38,420 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-01 19:24:38,420 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-01 19:24:38,420 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-01 19:24:38,421 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-01 19:24:38,423 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-01 19:24:38,424 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-01 19:24:38,424 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-01 19:24:38,425 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-01 19:24:38,425 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-01 19:24:38,426 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-01 19:24:38,426 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-01 19:24:38,427 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-01 19:24:38,428 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-01 19:24:38,428 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-01 19:24:38,429 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-01 19:24:38,431 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-01 19:24:38,432 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-01 19:24:38,433 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-01 19:24:38,433 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-01 19:24:38,435 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-01 19:24:38,435 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-01 19:24:38,435 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-01 19:24:38,436 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-01 19:24:38,437 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-01 19:24:38,437 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-01 19:24:38,438 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-01 19:24:38,439 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-01 19:24:38,439 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-01 19:24:38,439 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-01 19:24:38,440 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-01 19:24:38,440 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-01 19:24:38,440 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-01 19:24:38,441 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-01 19:24:38,441 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ca37008e-5b43-4c6f-aed5-699c0ef5daf9/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-12-01 19:24:38,451 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-01 19:24:38,451 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-01 19:24:38,452 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-01 19:24:38,452 INFO L133 SettingsManager]: * ... to procedures called more than once=ALWAYS [2018-12-01 19:24:38,453 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-01 19:24:38,453 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-01 19:24:38,453 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-01 19:24:38,453 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-01 19:24:38,453 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-01 19:24:38,454 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-01 19:24:38,454 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-01 19:24:38,454 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-01 19:24:38,454 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-01 19:24:38,454 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-01 19:24:38,454 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-01 19:24:38,454 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-01 19:24:38,454 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-01 19:24:38,454 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-01 19:24:38,455 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-01 19:24:38,455 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-01 19:24:38,455 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-01 19:24:38,455 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-01 19:24:38,455 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-01 19:24:38,455 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-01 19:24:38,455 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-01 19:24:38,455 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-01 19:24:38,455 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-01 19:24:38,456 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-01 19:24:38,456 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_ca37008e-5b43-4c6f-aed5-699c0ef5daf9/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 -> 054e86c0b11592f66f6efc3e0f84c6f8bee49b59 [2018-12-01 19:24:38,478 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-01 19:24:38,484 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-01 19:24:38,486 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-01 19:24:38,487 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-01 19:24:38,487 INFO L276 PluginConnector]: CDTParser initialized [2018-12-01 19:24:38,488 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ca37008e-5b43-4c6f-aed5-699c0ef5daf9/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted/Nyala-2lex_true-no-overflow_true-termination_true-valid-memsafety.c [2018-12-01 19:24:38,521 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ca37008e-5b43-4c6f-aed5-699c0ef5daf9/bin-2019/ukojak/data/6e7e968a0/9117e542242d43a0bd5d562ba4732c08/FLAGa3d992392 [2018-12-01 19:24:38,914 INFO L307 CDTParser]: Found 1 translation units. [2018-12-01 19:24:38,914 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ca37008e-5b43-4c6f-aed5-699c0ef5daf9/sv-benchmarks/c/termination-crafted/Nyala-2lex_true-no-overflow_true-termination_true-valid-memsafety.c [2018-12-01 19:24:38,918 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ca37008e-5b43-4c6f-aed5-699c0ef5daf9/bin-2019/ukojak/data/6e7e968a0/9117e542242d43a0bd5d562ba4732c08/FLAGa3d992392 [2018-12-01 19:24:38,926 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ca37008e-5b43-4c6f-aed5-699c0ef5daf9/bin-2019/ukojak/data/6e7e968a0/9117e542242d43a0bd5d562ba4732c08 [2018-12-01 19:24:38,928 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-01 19:24:38,929 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-01 19:24:38,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-01 19:24:38,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-01 19:24:38,931 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-01 19:24:38,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 07:24:38" (1/1) ... [2018-12-01 19:24:38,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42aa496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:24:38, skipping insertion in model container [2018-12-01 19:24:38,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 07:24:38" (1/1) ... [2018-12-01 19:24:38,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-01 19:24:38,947 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-01 19:24:39,029 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 19:24:39,031 INFO L191 MainTranslator]: Completed pre-run [2018-12-01 19:24:39,040 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-01 19:24:39,047 INFO L195 MainTranslator]: Completed translation [2018-12-01 19:24:39,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:24:39 WrapperNode [2018-12-01 19:24:39,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-01 19:24:39,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-01 19:24:39,048 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-01 19:24:39,048 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-01 19:24:39,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:24:39" (1/1) ... [2018-12-01 19:24:39,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:24:39" (1/1) ... [2018-12-01 19:24:39,065 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-01 19:24:39,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-01 19:24:39,065 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-01 19:24:39,066 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-01 19:24:39,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:24:39" (1/1) ... [2018-12-01 19:24:39,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:24:39" (1/1) ... [2018-12-01 19:24:39,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:24:39" (1/1) ... [2018-12-01 19:24:39,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:24:39" (1/1) ... [2018-12-01 19:24:39,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:24:39" (1/1) ... [2018-12-01 19:24:39,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:24:39" (1/1) ... [2018-12-01 19:24:39,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:24:39" (1/1) ... [2018-12-01 19:24:39,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-01 19:24:39,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-01 19:24:39,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-01 19:24:39,076 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-01 19:24:39,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 07:24:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ca37008e-5b43-4c6f-aed5-699c0ef5daf9/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 [2018-12-01 19:24:39,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-01 19:24:39,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-01 19:24:39,221 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-01 19:24:39,222 INFO L280 CfgBuilder]: Removed 5 assue(true) statements. [2018-12-01 19:24:39,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 07:24:39 BoogieIcfgContainer [2018-12-01 19:24:39,222 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-01 19:24:39,222 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-01 19:24:39,222 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-01 19:24:39,229 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-01 19:24:39,229 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 07:24:39" (1/1) ... [2018-12-01 19:24:39,236 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-01 19:24:39,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 19:24:39,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2018-12-01 19:24:39,257 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2018-12-01 19:24:39,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-01 19:24:39,259 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 19:24:39,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:24:39,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 19:24:39,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 19:24:39,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2018-12-01 19:24:39,363 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2018-12-01 19:24:39,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-01 19:24:39,363 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 19:24:39,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:24:39,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 19:24:39,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 19:24:39,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2018-12-01 19:24:39,422 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2018-12-01 19:24:39,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-01 19:24:39,422 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 19:24:39,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:24:39,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 19:24:39,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 19:24:39,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 18 states and 26 transitions. [2018-12-01 19:24:39,587 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 26 transitions. [2018-12-01 19:24:39,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-01 19:24:39,588 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 19:24:39,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:24:39,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 19:24:39,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 19:24:39,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 22 states and 33 transitions. [2018-12-01 19:24:39,733 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2018-12-01 19:24:39,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-01 19:24:39,735 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 19:24:39,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:24:39,758 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 19:24:39,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 19:24:39,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 22 states and 32 transitions. [2018-12-01 19:24:39,857 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2018-12-01 19:24:39,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-01 19:24:39,858 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-01 19:24:39,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-01 19:24:39,882 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-01 19:24:39,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-01 19:24:39,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2018-12-01 19:24:39,920 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2018-12-01 19:24:39,920 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-01 19:24:39,920 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2018-12-01 19:24:39,927 INFO L779 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2018-12-01 19:24:39,950 INFO L583 CodeCheckObserver]: Invariant with dag size 6 [2018-12-01 19:24:39,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 07:24:39 ImpRootNode [2018-12-01 19:24:39,956 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-01 19:24:39,957 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-01 19:24:39,957 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-01 19:24:39,957 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-01 19:24:39,957 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 07:24:39" (3/4) ... [2018-12-01 19:24:39,959 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-01 19:24:39,965 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-01 19:24:39,965 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-01 19:24:39,965 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-01 19:24:39,991 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ca37008e-5b43-4c6f-aed5-699c0ef5daf9/bin-2019/ukojak/witness.graphml [2018-12-01 19:24:39,991 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-01 19:24:39,991 INFO L168 Benchmark]: Toolchain (without parser) took 1063.11 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 952.2 MB in the beginning and 931.6 MB in the end (delta: 20.7 MB). Peak memory consumption was 126.6 MB. Max. memory is 11.5 GB. [2018-12-01 19:24:39,992 INFO L168 Benchmark]: CDTParser took 0.10 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. [2018-12-01 19:24:39,992 INFO L168 Benchmark]: CACSL2BoogieTranslator took 118.56 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 944.1 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-12-01 19:24:39,993 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.20 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 19:24:39,993 INFO L168 Benchmark]: Boogie Preprocessor took 10.35 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-01 19:24:39,993 INFO L168 Benchmark]: RCFGBuilder took 146.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -150.7 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. [2018-12-01 19:24:39,993 INFO L168 Benchmark]: CodeCheck took 734.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 934.2 MB in the end (delta: 157.9 MB). Peak memory consumption was 157.9 MB. Max. memory is 11.5 GB. [2018-12-01 19:24:39,994 INFO L168 Benchmark]: Witness Printer took 34.44 ms. Allocated memory is still 1.1 GB. Free memory was 934.2 MB in the beginning and 931.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-01 19:24:39,996 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 1 procedures, 15 locations, 4 error locations. SAFE Result, 0.6s OverallTime, 7 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 32 SDtfs, 358 SDslu, 64 SDs, 0 SdLazy, 1440 SolverSat, 290 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 344 GetRequests, 291 SyntacticMatches, 7 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 888 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 541 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 7/7 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: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: 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 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x <= 2147483647 && y <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 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 118.56 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 944.1 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 17.20 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.35 ms. Allocated memory is still 1.0 GB. Free memory is still 941.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 146.07 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 941.4 MB in the beginning and 1.1 GB in the end (delta: -150.7 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. * CodeCheck took 734.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 934.2 MB in the end (delta: 157.9 MB). Peak memory consumption was 157.9 MB. Max. memory is 11.5 GB. * Witness Printer took 34.44 ms. Allocated memory is still 1.1 GB. Free memory was 934.2 MB in the beginning and 931.6 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...