./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/RecursiveNonterminating-2.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_ff23c5f9-baaa-4a83-8bb7-d3a4dc5d62a6/bin/ukojak-fKGseLULKY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff23c5f9-baaa-4a83-8bb7-d3a4dc5d62a6/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_ff23c5f9-baaa-4a83-8bb7-d3a4dc5d62a6/bin/ukojak-fKGseLULKY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff23c5f9-baaa-4a83-8bb7-d3a4dc5d62a6/bin/ukojak-fKGseLULKY/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/RecursiveNonterminating-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff23c5f9-baaa-4a83-8bb7-d3a4dc5d62a6/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_ff23c5f9-baaa-4a83-8bb7-d3a4dc5d62a6/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 5c710c9332055b5f06164a07be44be6850b8917f ............................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 04:26:17,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 04:26:17,339 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 04:26:17,388 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 04:26:17,389 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 04:26:17,394 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 04:26:17,396 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 04:26:17,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 04:26:17,402 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 04:26:17,409 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 04:26:17,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 04:26:17,412 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 04:26:17,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 04:26:17,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 04:26:17,418 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 04:26:17,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 04:26:17,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 04:26:17,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 04:26:17,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 04:26:17,438 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 04:26:17,440 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 04:26:17,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 04:26:17,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 04:26:17,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 04:26:17,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 04:26:17,449 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 04:26:17,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 04:26:17,452 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 04:26:17,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 04:26:17,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 04:26:17,455 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 04:26:17,456 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 04:26:17,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 04:26:17,459 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 04:26:17,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 04:26:17,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 04:26:17,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 04:26:17,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 04:26:17,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 04:26:17,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 04:26:17,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 04:26:17,464 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff23c5f9-baaa-4a83-8bb7-d3a4dc5d62a6/bin/ukojak-fKGseLULKY/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-10-13 04:26:17,510 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 04:26:17,511 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 04:26:17,511 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 04:26:17,512 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-13 04:26:17,512 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 04:26:17,512 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 04:26:17,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 04:26:17,513 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 04:26:17,513 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 04:26:17,513 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 04:26:17,513 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 04:26:17,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 04:26:17,514 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 04:26:17,514 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 04:26:17,514 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 04:26:17,514 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 04:26:17,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 04:26:17,515 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-13 04:26:17,515 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-13 04:26:17,515 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 04:26:17,515 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 04:26:17,516 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 04:26:17,516 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 04:26:17,516 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 04:26:17,516 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-13 04:26:17,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 04:26:17,517 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 04:26:17,517 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_ff23c5f9-baaa-4a83-8bb7-d3a4dc5d62a6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff23c5f9-baaa-4a83-8bb7-d3a4dc5d62a6/bin/ukojak-fKGseLULKY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5c710c9332055b5f06164a07be44be6850b8917f [2021-10-13 04:26:17,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 04:26:17,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 04:26:17,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 04:26:17,827 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 04:26:17,828 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 04:26:17,829 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff23c5f9-baaa-4a83-8bb7-d3a4dc5d62a6/bin/ukojak-fKGseLULKY/../../sv-benchmarks/c/termination-crafted/RecursiveNonterminating-2.c [2021-10-13 04:26:17,892 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff23c5f9-baaa-4a83-8bb7-d3a4dc5d62a6/bin/ukojak-fKGseLULKY/data/ee0f040a7/226e48f624b149ff934c3d6894347718/FLAGcb761c728 [2021-10-13 04:26:18,313 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 04:26:18,313 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff23c5f9-baaa-4a83-8bb7-d3a4dc5d62a6/sv-benchmarks/c/termination-crafted/RecursiveNonterminating-2.c [2021-10-13 04:26:18,318 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff23c5f9-baaa-4a83-8bb7-d3a4dc5d62a6/bin/ukojak-fKGseLULKY/data/ee0f040a7/226e48f624b149ff934c3d6894347718/FLAGcb761c728 [2021-10-13 04:26:18,725 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff23c5f9-baaa-4a83-8bb7-d3a4dc5d62a6/bin/ukojak-fKGseLULKY/data/ee0f040a7/226e48f624b149ff934c3d6894347718 [2021-10-13 04:26:18,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 04:26:18,729 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 04:26:18,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 04:26:18,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 04:26:18,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 04:26:18,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:26:18" (1/1) ... [2021-10-13 04:26:18,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27880cea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:26:18, skipping insertion in model container [2021-10-13 04:26:18,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:26:18" (1/1) ... [2021-10-13 04:26:18,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 04:26:18,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 04:26:18,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 04:26:18,909 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 04:26:18,935 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 04:26:18,943 INFO L208 MainTranslator]: Completed translation [2021-10-13 04:26:18,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:26:18 WrapperNode [2021-10-13 04:26:18,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 04:26:18,945 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 04:26:18,945 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 04:26:18,946 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 04:26:18,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:26:18" (1/1) ... [2021-10-13 04:26:18,957 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:26:18" (1/1) ... [2021-10-13 04:26:18,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 04:26:18,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 04:26:18,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 04:26:18,977 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 04:26:18,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:26:18" (1/1) ... [2021-10-13 04:26:18,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:26:18" (1/1) ... [2021-10-13 04:26:18,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:26:18" (1/1) ... [2021-10-13 04:26:18,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:26:18" (1/1) ... [2021-10-13 04:26:18,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:26:18" (1/1) ... [2021-10-13 04:26:18,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:26:18" (1/1) ... [2021-10-13 04:26:18,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:26:18" (1/1) ... [2021-10-13 04:26:18,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 04:26:18,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 04:26:18,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 04:26:18,999 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 04:26:19,003 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:26:18" (1/1) ... [2021-10-13 04:26:19,011 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 04:26:19,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff23c5f9-baaa-4a83-8bb7-d3a4dc5d62a6/bin/ukojak-fKGseLULKY/z3 [2021-10-13 04:26:19,036 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff23c5f9-baaa-4a83-8bb7-d3a4dc5d62a6/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-13 04:26:19,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff23c5f9-baaa-4a83-8bb7-d3a4dc5d62a6/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-13 04:26:19,092 INFO L130 BoogieDeclarations]: Found specification of procedure rec [2021-10-13 04:26:19,092 INFO L138 BoogieDeclarations]: Found implementation of procedure rec [2021-10-13 04:26:19,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 04:26:19,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 04:26:19,268 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 04:26:19,268 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-13 04:26:19,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:26:19 BoogieIcfgContainer [2021-10-13 04:26:19,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 04:26:19,272 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-13 04:26:19,272 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-13 04:26:19,287 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-13 04:26:19,287 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:26:19" (1/1) ... [2021-10-13 04:26:19,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 04:26:19,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:26:19,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 25 states and 26 transitions. [2021-10-13 04:26:19,333 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2021-10-13 04:26:19,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-13 04:26:19,334 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:26:19,335 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:26:19,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:26:19,403 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 04:26:19,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:26:19,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:26:19,428 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 04:26:19,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:26:19,435 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2021-10-13 04:26:19,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.10 04:26:19 ImpRootNode [2021-10-13 04:26:19,450 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-13 04:26:19,450 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 04:26:19,451 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 04:26:19,451 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 04:26:19,451 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:26:19" (3/4) ... [2021-10-13 04:26:19,453 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 04:26:19,482 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff23c5f9-baaa-4a83-8bb7-d3a4dc5d62a6/bin/ukojak-fKGseLULKY/witness.graphml [2021-10-13 04:26:19,482 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 04:26:19,484 INFO L168 Benchmark]: Toolchain (without parser) took 753.96 ms. Allocated memory is still 107.0 MB. Free memory was 67.6 MB in the beginning and 62.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 1.6 MB. Max. memory is 16.1 GB. [2021-10-13 04:26:19,485 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 107.0 MB. Free memory was 83.7 MB in the beginning and 83.6 MB in the end (delta: 55.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:26:19,486 INFO L168 Benchmark]: CACSL2BoogieTranslator took 213.71 ms. Allocated memory is still 107.0 MB. Free memory was 67.5 MB in the beginning and 83.5 MB in the end (delta: -16.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 04:26:19,487 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.97 ms. Allocated memory is still 107.0 MB. Free memory was 83.2 MB in the beginning and 82.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:26:19,488 INFO L168 Benchmark]: Boogie Preprocessor took 23.35 ms. Allocated memory is still 107.0 MB. Free memory was 82.2 MB in the beginning and 81.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 04:26:19,489 INFO L168 Benchmark]: RCFGBuilder took 272.73 ms. Allocated memory is still 107.0 MB. Free memory was 81.1 MB in the beginning and 72.4 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 04:26:19,490 INFO L168 Benchmark]: CodeCheck took 177.75 ms. Allocated memory is still 107.0 MB. Free memory was 72.4 MB in the beginning and 64.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 04:26:19,491 INFO L168 Benchmark]: Witness Printer took 31.88 ms. Allocated memory is still 107.0 MB. Free memory was 64.3 MB in the beginning and 62.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:26:19,498 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 2 procedures, 25 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 129.9ms, OverallIterations: 1, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.6ms SsaConstructionTime, 3.3ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 - CounterExampleResult [Line: 18]: integer overflow possible integer overflow possible We found a FailurePath: [L17] int n = __VERIFIER_nondet_int(); [L18] n + 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 107.0 MB. Free memory was 83.7 MB in the beginning and 83.6 MB in the end (delta: 55.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 213.71 ms. Allocated memory is still 107.0 MB. Free memory was 67.5 MB in the beginning and 83.5 MB in the end (delta: -16.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 27.97 ms. Allocated memory is still 107.0 MB. Free memory was 83.2 MB in the beginning and 82.2 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.35 ms. Allocated memory is still 107.0 MB. Free memory was 82.2 MB in the beginning and 81.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 272.73 ms. Allocated memory is still 107.0 MB. Free memory was 81.1 MB in the beginning and 72.4 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * CodeCheck took 177.75 ms. Allocated memory is still 107.0 MB. Free memory was 72.4 MB in the beginning and 64.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Witness Printer took 31.88 ms. Allocated memory is still 107.0 MB. Free memory was 64.3 MB in the beginning and 62.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 04:26:19,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff23c5f9-baaa-4a83-8bb7-d3a4dc5d62a6/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request...