./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_e890209f-629f-480f-bd89-35eadf6a613b/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e890209f-629f-480f-bd89-35eadf6a613b/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e890209f-629f-480f-bd89-35eadf6a613b/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e890209f-629f-480f-bd89-35eadf6a613b/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_e890209f-629f-480f-bd89-35eadf6a613b/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e890209f-629f-480f-bd89-35eadf6a613b/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 [2018-11-10 05:09:32,385 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 05:09:32,387 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 05:09:32,397 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 05:09:32,397 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 05:09:32,398 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 05:09:32,399 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 05:09:32,401 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 05:09:32,402 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 05:09:32,403 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 05:09:32,403 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 05:09:32,404 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 05:09:32,404 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 05:09:32,405 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 05:09:32,406 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 05:09:32,407 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 05:09:32,407 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 05:09:32,409 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 05:09:32,410 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 05:09:32,412 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 05:09:32,413 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 05:09:32,413 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 05:09:32,415 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 05:09:32,416 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 05:09:32,416 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 05:09:32,417 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 05:09:32,417 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 05:09:32,418 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 05:09:32,419 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 05:09:32,420 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 05:09:32,420 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 05:09:32,420 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 05:09:32,421 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 05:09:32,421 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 05:09:32,422 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 05:09:32,422 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 05:09:32,423 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e890209f-629f-480f-bd89-35eadf6a613b/bin-2019/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2018-11-10 05:09:32,435 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 05:09:32,435 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 05:09:32,436 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 05:09:32,436 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 05:09:32,436 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 05:09:32,437 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 05:09:32,437 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 05:09:32,437 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 05:09:32,437 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 05:09:32,437 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 05:09:32,438 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 05:09:32,438 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 05:09:32,438 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 05:09:32,438 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 05:09:32,438 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 05:09:32,438 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 05:09:32,439 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-10 05:09:32,439 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-10 05:09:32,439 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 05:09:32,439 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 05:09:32,439 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-10 05:09:32,440 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 05:09:32,440 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 05:09:32,440 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 05:09:32,440 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-10 05:09:32,440 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 05:09:32,440 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 05:09:32,441 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_e890209f-629f-480f-bd89-35eadf6a613b/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 [2018-11-10 05:09:32,468 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 05:09:32,482 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 05:09:32,485 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 05:09:32,487 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 05:09:32,487 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 05:09:32,488 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e890209f-629f-480f-bd89-35eadf6a613b/bin-2019/ukojak/../../sv-benchmarks/c/termination-crafted/McCarthy91_Recursion_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-10 05:09:32,544 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e890209f-629f-480f-bd89-35eadf6a613b/bin-2019/ukojak/data/3d6af3b9a/4bd22069f1754e87a49f2899760af83c/FLAG1b29be60c [2018-11-10 05:09:32,907 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 05:09:32,908 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e890209f-629f-480f-bd89-35eadf6a613b/sv-benchmarks/c/termination-crafted/McCarthy91_Recursion_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-10 05:09:32,912 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e890209f-629f-480f-bd89-35eadf6a613b/bin-2019/ukojak/data/3d6af3b9a/4bd22069f1754e87a49f2899760af83c/FLAG1b29be60c [2018-11-10 05:09:32,922 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e890209f-629f-480f-bd89-35eadf6a613b/bin-2019/ukojak/data/3d6af3b9a/4bd22069f1754e87a49f2899760af83c [2018-11-10 05:09:32,925 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 05:09:32,926 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 05:09:32,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 05:09:32,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 05:09:32,929 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 05:09:32,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:09:32" (1/1) ... [2018-11-10 05:09:32,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75ed4351 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:09:32, skipping insertion in model container [2018-11-10 05:09:32,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:09:32" (1/1) ... [2018-11-10 05:09:32,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 05:09:32,949 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 05:09:33,053 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:09:33,056 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 05:09:33,066 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:09:33,076 INFO L193 MainTranslator]: Completed translation [2018-11-10 05:09:33,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:09:33 WrapperNode [2018-11-10 05:09:33,076 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 05:09:33,077 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 05:09:33,077 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 05:09:33,077 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 05:09:33,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:09:33" (1/1) ... [2018-11-10 05:09:33,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:09:33" (1/1) ... [2018-11-10 05:09:33,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 05:09:33,099 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 05:09:33,099 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 05:09:33,099 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 05:09:33,105 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:09:33" (1/1) ... [2018-11-10 05:09:33,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:09:33" (1/1) ... [2018-11-10 05:09:33,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:09:33" (1/1) ... [2018-11-10 05:09:33,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:09:33" (1/1) ... [2018-11-10 05:09:33,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:09:33" (1/1) ... [2018-11-10 05:09:33,108 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:09:33" (1/1) ... [2018-11-10 05:09:33,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:09:33" (1/1) ... [2018-11-10 05:09:33,110 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 05:09:33,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 05:09:33,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 05:09:33,110 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 05:09:33,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:09:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e890209f-629f-480f-bd89-35eadf6a613b/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 [2018-11-10 05:09:33,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 05:09:33,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 05:09:33,195 INFO L130 BoogieDeclarations]: Found specification of procedure mc91 [2018-11-10 05:09:33,195 INFO L138 BoogieDeclarations]: Found implementation of procedure mc91 [2018-11-10 05:09:33,329 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 05:09:33,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:09:33 BoogieIcfgContainer [2018-11-10 05:09:33,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 05:09:33,330 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-10 05:09:33,330 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-10 05:09:33,340 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-10 05:09:33,340 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:09:33" (1/1) ... [2018-11-10 05:09:33,350 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:09:33,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:09:33,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 20 states and 22 transitions. [2018-11-10 05:09:33,386 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-10 05:09:33,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-10 05:09:33,388 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:09:33,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:09:33,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:09:33,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:09:33,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 19 states and 21 transitions. [2018-11-10 05:09:33,506 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-10 05:09:33,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-11-10 05:09:33,506 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:09:33,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:09:33,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:09:33,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:09:33,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 26 transitions. [2018-11-10 05:09:33,648 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2018-11-10 05:09:33,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-10 05:09:33,648 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:09:33,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:09:33,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:09:33,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:09:33,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 26 states and 32 transitions. [2018-11-10 05:09:33,928 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2018-11-10 05:09:33,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-10 05:09:33,930 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:09:33,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:09:33,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:09:33,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:09:33,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 25 states and 31 transitions. [2018-11-10 05:09:33,990 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2018-11-10 05:09:33,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 05:09:33,991 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:09:33,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:09:34,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:09:34,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:09:34,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 25 states and 30 transitions. [2018-11-10 05:09:34,095 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2018-11-10 05:09:34,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 05:09:34,096 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:09:34,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:09:34,143 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:09:34,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:09:34,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 25 states and 29 transitions. [2018-11-10 05:09:34,203 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2018-11-10 05:09:34,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-10 05:09:34,204 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:09:34,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:09:34,255 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-10 05:09:34,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:09:34,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 24 transitions. [2018-11-10 05:09:34,287 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2018-11-10 05:09:34,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 05:09:34,288 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2018-11-10 05:09:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:09:34,322 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-10 05:09:34,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-10 05:09:34,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 16 states and 18 transitions. [2018-11-10 05:09:34,391 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-11-10 05:09:34,392 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 05:09:34,392 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2018-11-10 05:09:34,398 INFO L778 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2018-11-10 05:09:34,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 10.11 05:09:34 ImpRootNode [2018-11-10 05:09:34,421 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-10 05:09:34,421 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 05:09:34,421 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 05:09:34,422 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 05:09:34,422 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:09:33" (3/4) ... [2018-11-10 05:09:34,425 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 05:09:34,431 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure mc91 [2018-11-10 05:09:34,434 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-10 05:09:34,434 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 05:09:34,435 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-10 05:09:34,463 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e890209f-629f-480f-bd89-35eadf6a613b/bin-2019/ukojak/witness.graphml [2018-11-10 05:09:34,464 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 05:09:34,464 INFO L168 Benchmark]: Toolchain (without parser) took 1539.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 958.1 MB in the beginning and 979.0 MB in the end (delta: -20.9 MB). Peak memory consumption was 119.1 MB. Max. memory is 11.5 GB. [2018-11-10 05:09:34,465 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:09:34,466 INFO L168 Benchmark]: CACSL2BoogieTranslator took 150.27 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:09:34,466 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.62 ms. Allocated memory is still 1.0 GB. Free memory is still 947.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:09:34,466 INFO L168 Benchmark]: Boogie Preprocessor took 10.98 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:09:34,467 INFO L168 Benchmark]: RCFGBuilder took 219.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -181.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2018-11-10 05:09:34,467 INFO L168 Benchmark]: CodeCheck took 1091.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 982.3 MB in the end (delta: 144.3 MB). Peak memory consumption was 144.3 MB. Max. memory is 11.5 GB. [2018-11-10 05:09:34,468 INFO L168 Benchmark]: Witness Printer took 42.30 ms. Allocated memory is still 1.2 GB. Free memory was 982.3 MB in the beginning and 979.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-10 05:09:34,470 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, 1.0s 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, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 602 GetRequests, 548 SyntacticMatches, 16 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 493 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 85 NumberOfCodeBlocks, 85 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 77 ConstructedInterpolants, 0 QuantifiedInterpolants, 2075 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 30/30 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: 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: 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 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 150.27 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.3 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 21.62 ms. Allocated memory is still 1.0 GB. Free memory is still 947.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.98 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 219.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -181.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * CodeCheck took 1091.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 982.3 MB in the end (delta: 144.3 MB). Peak memory consumption was 144.3 MB. Max. memory is 11.5 GB. * Witness Printer took 42.30 ms. Allocated memory is still 1.2 GB. Free memory was 982.3 MB in the beginning and 979.0 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...