./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/NestedRecursion_1c.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb99edc-a3b3-47ae-8fe7-86a3170fe8f5/bin/ukojak-fKGseLULKY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb99edc-a3b3-47ae-8fe7-86a3170fe8f5/bin/ukojak-fKGseLULKY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb99edc-a3b3-47ae-8fe7-86a3170fe8f5/bin/ukojak-fKGseLULKY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb99edc-a3b3-47ae-8fe7-86a3170fe8f5/bin/ukojak-fKGseLULKY/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/NestedRecursion_1c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb99edc-a3b3-47ae-8fe7-86a3170fe8f5/bin/ukojak-fKGseLULKY/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb99edc-a3b3-47ae-8fe7-86a3170fe8f5/bin/ukojak-fKGseLULKY --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 1b5ce1e17bce3e34a2c882b1080bdbc1a62cb801 ..................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 04:34:57,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 04:34:57,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 04:34:57,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 04:34:57,420 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 04:34:57,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 04:34:57,423 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 04:34:57,425 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 04:34:57,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 04:34:57,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 04:34:57,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 04:34:57,431 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 04:34:57,431 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 04:34:57,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 04:34:57,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 04:34:57,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 04:34:57,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 04:34:57,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 04:34:57,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 04:34:57,442 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 04:34:57,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 04:34:57,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 04:34:57,446 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 04:34:57,447 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 04:34:57,451 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 04:34:57,451 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 04:34:57,452 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 04:34:57,453 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 04:34:57,453 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 04:34:57,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 04:34:57,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 04:34:57,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 04:34:57,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 04:34:57,457 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 04:34:57,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 04:34:57,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 04:34:57,459 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 04:34:57,460 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 04:34:57,460 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 04:34:57,461 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 04:34:57,462 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 04:34:57,463 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb99edc-a3b3-47ae-8fe7-86a3170fe8f5/bin/ukojak-fKGseLULKY/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-10-13 04:34:57,487 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 04:34:57,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 04:34:57,489 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 04:34:57,489 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-13 04:34:57,490 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 04:34:57,490 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 04:34:57,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 04:34:57,491 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 04:34:57,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 04:34:57,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 04:34:57,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 04:34:57,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 04:34:57,498 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 04:34:57,499 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 04:34:57,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 04:34:57,499 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 04:34:57,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 04:34:57,500 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-13 04:34:57,500 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-13 04:34:57,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 04:34:57,501 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 04:34:57,501 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 04:34:57,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 04:34:57,502 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 04:34:57,502 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-13 04:34:57,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 04:34:57,503 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 04:34:57,503 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb99edc-a3b3-47ae-8fe7-86a3170fe8f5/bin/ukojak-fKGseLULKY/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb99edc-a3b3-47ae-8fe7-86a3170fe8f5/bin/ukojak-fKGseLULKY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b5ce1e17bce3e34a2c882b1080bdbc1a62cb801 [2021-10-13 04:34:57,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 04:34:57,816 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 04:34:57,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 04:34:57,821 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 04:34:57,822 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 04:34:57,823 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb99edc-a3b3-47ae-8fe7-86a3170fe8f5/bin/ukojak-fKGseLULKY/../../sv-benchmarks/c/termination-crafted/NestedRecursion_1c.c [2021-10-13 04:34:57,925 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb99edc-a3b3-47ae-8fe7-86a3170fe8f5/bin/ukojak-fKGseLULKY/data/cab9b1e8f/e58711d49fab446190c3a9ec166d0e5b/FLAGecf67af22 [2021-10-13 04:34:58,428 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 04:34:58,430 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb99edc-a3b3-47ae-8fe7-86a3170fe8f5/sv-benchmarks/c/termination-crafted/NestedRecursion_1c.c [2021-10-13 04:34:58,448 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb99edc-a3b3-47ae-8fe7-86a3170fe8f5/bin/ukojak-fKGseLULKY/data/cab9b1e8f/e58711d49fab446190c3a9ec166d0e5b/FLAGecf67af22 [2021-10-13 04:34:58,784 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb99edc-a3b3-47ae-8fe7-86a3170fe8f5/bin/ukojak-fKGseLULKY/data/cab9b1e8f/e58711d49fab446190c3a9ec166d0e5b [2021-10-13 04:34:58,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 04:34:58,790 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 04:34:58,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 04:34:58,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 04:34:58,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 04:34:58,808 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:34:58" (1/1) ... [2021-10-13 04:34:58,811 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ad9b9c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:34:58, skipping insertion in model container [2021-10-13 04:34:58,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:34:58" (1/1) ... [2021-10-13 04:34:58,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 04:34:58,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 04:34:59,004 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 04:34:59,008 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 04:34:59,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 04:34:59,060 INFO L208 MainTranslator]: Completed translation [2021-10-13 04:34:59,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:34:59 WrapperNode [2021-10-13 04:34:59,061 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 04:34:59,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 04:34:59,063 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 04:34:59,064 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 04:34:59,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:34:59" (1/1) ... [2021-10-13 04:34:59,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:34:59" (1/1) ... [2021-10-13 04:34:59,106 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 04:34:59,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 04:34:59,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 04:34:59,108 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 04:34:59,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:34:59" (1/1) ... [2021-10-13 04:34:59,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:34:59" (1/1) ... [2021-10-13 04:34:59,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:34:59" (1/1) ... [2021-10-13 04:34:59,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:34:59" (1/1) ... [2021-10-13 04:34:59,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:34:59" (1/1) ... [2021-10-13 04:34:59,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:34:59" (1/1) ... [2021-10-13 04:34:59,125 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:34:59" (1/1) ... [2021-10-13 04:34:59,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 04:34:59,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 04:34:59,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 04:34:59,128 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 04:34:59,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:34:59" (1/1) ... [2021-10-13 04:34:59,139 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 04:34:59,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb99edc-a3b3-47ae-8fe7-86a3170fe8f5/bin/ukojak-fKGseLULKY/z3 [2021-10-13 04:34:59,191 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb99edc-a3b3-47ae-8fe7-86a3170fe8f5/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-13 04:34:59,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb99edc-a3b3-47ae-8fe7-86a3170fe8f5/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-13 04:34:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure rec1 [2021-10-13 04:34:59,252 INFO L138 BoogieDeclarations]: Found implementation of procedure rec1 [2021-10-13 04:34:59,252 INFO L130 BoogieDeclarations]: Found specification of procedure rec2 [2021-10-13 04:34:59,253 INFO L138 BoogieDeclarations]: Found implementation of procedure rec2 [2021-10-13 04:34:59,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 04:34:59,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 04:34:59,497 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 04:34:59,497 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-13 04:34:59,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:34:59 BoogieIcfgContainer [2021-10-13 04:34:59,501 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 04:34:59,502 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-13 04:34:59,502 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-13 04:34:59,535 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-13 04:34:59,536 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:34:59" (1/1) ... [2021-10-13 04:34:59,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 04:34:59,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:34:59,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 42 states and 47 transitions. [2021-10-13 04:34:59,606 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 47 transitions. [2021-10-13 04:34:59,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 04:34:59,611 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:34:59,613 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:34:59,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:34:59,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:34:59,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:34:59,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 45 states and 51 transitions. [2021-10-13 04:34:59,970 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2021-10-13 04:34:59,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 04:34:59,972 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:34:59,972 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:34:59,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:35:00,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:35:00,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:35:00,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 44 states and 50 transitions. [2021-10-13 04:35:00,101 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2021-10-13 04:35:00,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 04:35:00,102 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:35:00,103 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:35:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:35:00,177 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:35:00,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:35:00,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 40 states and 45 transitions. [2021-10-13 04:35:00,239 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2021-10-13 04:35:00,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 04:35:00,241 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:35:00,241 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:35:00,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:35:00,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-13 04:35:00,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:35:00,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 46 states and 56 transitions. [2021-10-13 04:35:00,488 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2021-10-13 04:35:00,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-13 04:35:00,489 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:35:00,490 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:35:00,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:35:00,592 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-13 04:35:00,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:35:00,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 45 states and 55 transitions. [2021-10-13 04:35:00,656 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2021-10-13 04:35:00,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-10-13 04:35:00,658 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:35:00,659 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:35:00,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:35:00,792 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-13 04:35:00,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:35:00,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 50 states and 64 transitions. [2021-10-13 04:35:00,990 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 64 transitions. [2021-10-13 04:35:00,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-10-13 04:35:00,993 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:35:00,993 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:35:01,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:35:01,387 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-13 04:35:01,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:35:01,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 20 states and 21 transitions. [2021-10-13 04:35:01,945 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2021-10-13 04:35:01,946 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 04:35:01,946 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2021-10-13 04:35:01,966 INFO L759 CodeCheckObserver]: All specifications hold 10 specifications checked. All of them hold [2021-10-13 04:35:02,039 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.10 04:35:02 ImpRootNode [2021-10-13 04:35:02,039 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-13 04:35:02,040 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 04:35:02,040 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 04:35:02,040 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 04:35:02,041 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:34:59" (3/4) ... [2021-10-13 04:35:02,045 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 04:35:02,054 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure rec1 [2021-10-13 04:35:02,054 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure rec2 [2021-10-13 04:35:02,070 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-13 04:35:02,071 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-13 04:35:02,071 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 04:35:02,147 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb99edc-a3b3-47ae-8fe7-86a3170fe8f5/bin/ukojak-fKGseLULKY/witness.graphml [2021-10-13 04:35:02,147 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 04:35:02,156 INFO L168 Benchmark]: Toolchain (without parser) took 3358.18 ms. Allocated memory was 79.7 MB in the beginning and 117.4 MB in the end (delta: 37.7 MB). Free memory was 40.8 MB in the beginning and 67.7 MB in the end (delta: -26.9 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. [2021-10-13 04:35:02,157 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 79.7 MB. Free memory is still 57.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:35:02,158 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.06 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 40.7 MB in the beginning and 74.1 MB in the end (delta: -33.4 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. [2021-10-13 04:35:02,159 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.38 ms. Allocated memory is still 96.5 MB. Free memory was 74.1 MB in the beginning and 72.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:35:02,159 INFO L168 Benchmark]: Boogie Preprocessor took 19.76 ms. Allocated memory is still 96.5 MB. Free memory was 72.6 MB in the beginning and 71.9 MB in the end (delta: 724.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:35:02,160 INFO L168 Benchmark]: RCFGBuilder took 373.39 ms. Allocated memory is still 96.5 MB. Free memory was 71.9 MB in the beginning and 62.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 04:35:02,161 INFO L168 Benchmark]: CodeCheck took 2537.18 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 62.3 MB in the beginning and 70.8 MB in the end (delta: -8.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2021-10-13 04:35:02,162 INFO L168 Benchmark]: Witness Printer took 107.10 ms. Allocated memory is still 117.4 MB. Free memory was 70.8 MB in the beginning and 67.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 04:35:02,165 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 42 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 2383.9ms, OverallIterations: 8, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 652 SDtfs, 602 SDslu, 48 SDs, 0 SdLazy, 2606 SolverSat, 856 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 582.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 806 GetRequests, 743 SyntacticMatches, 15 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 576 ImplicationChecksByTransitivity, 1338.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 30.9ms SsaConstructionTime, 126.3ms SatisfiabilityAnalysisTime, 824.8ms InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 210 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 50/50 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: 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: 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 - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 79.7 MB. Free memory is still 57.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 260.06 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 40.7 MB in the beginning and 74.1 MB in the end (delta: -33.4 MB). Peak memory consumption was 7.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.38 ms. Allocated memory is still 96.5 MB. Free memory was 74.1 MB in the beginning and 72.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.76 ms. Allocated memory is still 96.5 MB. Free memory was 72.6 MB in the beginning and 71.9 MB in the end (delta: 724.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 373.39 ms. Allocated memory is still 96.5 MB. Free memory was 71.9 MB in the beginning and 62.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 2537.18 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 62.3 MB in the beginning and 70.8 MB in the end (delta: -8.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. * Witness Printer took 107.10 ms. Allocated memory is still 117.4 MB. Free memory was 70.8 MB in the beginning and 67.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! [2021-10-13 04:35:02,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_beb99edc-a3b3-47ae-8fe7-86a3170fe8f5/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...