./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/2Nested-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_9f09b37e-d54c-472b-94c7-d8c43725b8af/bin/ukojak-fKGseLULKY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f09b37e-d54c-472b-94c7-d8c43725b8af/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_9f09b37e-d54c-472b-94c7-d8c43725b8af/bin/ukojak-fKGseLULKY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f09b37e-d54c-472b-94c7-d8c43725b8af/bin/ukojak-fKGseLULKY/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/2Nested-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f09b37e-d54c-472b-94c7-d8c43725b8af/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_9f09b37e-d54c-472b-94c7-d8c43725b8af/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 4143c9f7038c4b8b5babb8095ecf96c00e7adcf9 .............................................................................................................................................................................................................. 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 04:37:41,181 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 04:37:41,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 04:37:41,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 04:37:41,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 04:37:41,256 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 04:37:41,258 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 04:37:41,262 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 04:37:41,264 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 04:37:41,266 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 04:37:41,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 04:37:41,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 04:37:41,271 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 04:37:41,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 04:37:41,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 04:37:41,277 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 04:37:41,278 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 04:37:41,280 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 04:37:41,283 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 04:37:41,286 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 04:37:41,289 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 04:37:41,291 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 04:37:41,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 04:37:41,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 04:37:41,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 04:37:41,301 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 04:37:41,301 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 04:37:41,303 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 04:37:41,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 04:37:41,305 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 04:37:41,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 04:37:41,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 04:37:41,308 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 04:37:41,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 04:37:41,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 04:37:41,312 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 04:37:41,313 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 04:37:41,314 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 04:37:41,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 04:37:41,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 04:37:41,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 04:37:41,318 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f09b37e-d54c-472b-94c7-d8c43725b8af/bin/ukojak-fKGseLULKY/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-10-13 04:37:41,362 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 04:37:41,364 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 04:37:41,366 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 04:37:41,366 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-13 04:37:41,368 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 04:37:41,368 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 04:37:41,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 04:37:41,369 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 04:37:41,369 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 04:37:41,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 04:37:41,371 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 04:37:41,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 04:37:41,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 04:37:41,372 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 04:37:41,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 04:37:41,373 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 04:37:41,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 04:37:41,373 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-13 04:37:41,374 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-13 04:37:41,374 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 04:37:41,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 04:37:41,375 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 04:37:41,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 04:37:41,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 04:37:41,376 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-13 04:37:41,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 04:37:41,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 04:37:41,377 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_9f09b37e-d54c-472b-94c7-d8c43725b8af/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f09b37e-d54c-472b-94c7-d8c43725b8af/bin/ukojak-fKGseLULKY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4143c9f7038c4b8b5babb8095ecf96c00e7adcf9 [2021-10-13 04:37:41,697 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 04:37:41,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 04:37:41,723 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 04:37:41,725 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 04:37:41,726 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 04:37:41,727 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f09b37e-d54c-472b-94c7-d8c43725b8af/bin/ukojak-fKGseLULKY/../../sv-benchmarks/c/termination-crafted/2Nested-2.c [2021-10-13 04:37:41,801 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f09b37e-d54c-472b-94c7-d8c43725b8af/bin/ukojak-fKGseLULKY/data/b6d05f9d3/f9d9b5578ea64757a1d2e13db4470db2/FLAG288622bef [2021-10-13 04:37:42,402 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 04:37:42,403 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f09b37e-d54c-472b-94c7-d8c43725b8af/sv-benchmarks/c/termination-crafted/2Nested-2.c [2021-10-13 04:37:42,410 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f09b37e-d54c-472b-94c7-d8c43725b8af/bin/ukojak-fKGseLULKY/data/b6d05f9d3/f9d9b5578ea64757a1d2e13db4470db2/FLAG288622bef [2021-10-13 04:37:42,777 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f09b37e-d54c-472b-94c7-d8c43725b8af/bin/ukojak-fKGseLULKY/data/b6d05f9d3/f9d9b5578ea64757a1d2e13db4470db2 [2021-10-13 04:37:42,786 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 04:37:42,789 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 04:37:42,793 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 04:37:42,794 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 04:37:42,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 04:37:42,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:37:42" (1/1) ... [2021-10-13 04:37:42,802 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3428c3eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:42, skipping insertion in model container [2021-10-13 04:37:42,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:37:42" (1/1) ... [2021-10-13 04:37:42,811 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 04:37:42,828 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 04:37:42,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 04:37:42,999 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 04:37:43,033 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 04:37:43,046 INFO L208 MainTranslator]: Completed translation [2021-10-13 04:37:43,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:43 WrapperNode [2021-10-13 04:37:43,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 04:37:43,049 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 04:37:43,049 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 04:37:43,049 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 04:37:43,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:43" (1/1) ... [2021-10-13 04:37:43,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:43" (1/1) ... [2021-10-13 04:37:43,085 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 04:37:43,086 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 04:37:43,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 04:37:43,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 04:37:43,097 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:43" (1/1) ... [2021-10-13 04:37:43,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:43" (1/1) ... [2021-10-13 04:37:43,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:43" (1/1) ... [2021-10-13 04:37:43,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:43" (1/1) ... [2021-10-13 04:37:43,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:43" (1/1) ... [2021-10-13 04:37:43,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:43" (1/1) ... [2021-10-13 04:37:43,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:43" (1/1) ... [2021-10-13 04:37:43,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 04:37:43,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 04:37:43,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 04:37:43,109 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 04:37:43,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:37:43" (1/1) ... [2021-10-13 04:37:43,117 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 04:37:43,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f09b37e-d54c-472b-94c7-d8c43725b8af/bin/ukojak-fKGseLULKY/z3 [2021-10-13 04:37:43,147 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f09b37e-d54c-472b-94c7-d8c43725b8af/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-13 04:37:43,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f09b37e-d54c-472b-94c7-d8c43725b8af/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-13 04:37:43,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 04:37:43,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 04:37:43,385 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 04:37:43,386 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-13 04:37:43,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:37:43 BoogieIcfgContainer [2021-10-13 04:37:43,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 04:37:43,390 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-13 04:37:43,390 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-13 04:37:43,403 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-13 04:37:43,403 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:37:43" (1/1) ... [2021-10-13 04:37:43,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 04:37:43,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:37:43,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-10-13 04:37:43,456 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-10-13 04:37:43,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 04:37:43,459 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:37:43,461 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:37:43,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:37:43,553 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 04:37:43,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:37:43,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:37:43,655 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 04:37:43,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:37:43,676 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2021-10-13 04:37:43,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.10 04:37:43 ImpRootNode [2021-10-13 04:37:43,704 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-13 04:37:43,705 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 04:37:43,705 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 04:37:43,705 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 04:37:43,706 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:37:43" (3/4) ... [2021-10-13 04:37:43,708 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 04:37:43,748 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f09b37e-d54c-472b-94c7-d8c43725b8af/bin/ukojak-fKGseLULKY/witness.graphml [2021-10-13 04:37:43,749 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 04:37:43,751 INFO L168 Benchmark]: Toolchain (without parser) took 960.73 ms. Allocated memory is still 119.5 MB. Free memory was 89.8 MB in the beginning and 75.4 MB in the end (delta: 14.3 MB). Peak memory consumption was 11.6 MB. Max. memory is 16.1 GB. [2021-10-13 04:37:43,752 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 119.5 MB. Free memory is still 72.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:37:43,754 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.65 ms. Allocated memory is still 119.5 MB. Free memory was 89.8 MB in the beginning and 96.0 MB in the end (delta: -6.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 04:37:43,755 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.52 ms. Allocated memory is still 119.5 MB. Free memory was 96.0 MB in the beginning and 94.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:37:43,756 INFO L168 Benchmark]: Boogie Preprocessor took 21.26 ms. Allocated memory is still 119.5 MB. Free memory was 94.9 MB in the beginning and 93.9 MB in the end (delta: 974.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:37:43,757 INFO L168 Benchmark]: RCFGBuilder took 281.03 ms. Allocated memory is still 119.5 MB. Free memory was 93.9 MB in the beginning and 85.4 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 04:37:43,758 INFO L168 Benchmark]: CodeCheck took 313.86 ms. Allocated memory is still 119.5 MB. Free memory was 85.4 MB in the beginning and 77.0 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 04:37:43,759 INFO L168 Benchmark]: Witness Printer took 44.17 ms. Allocated memory is still 119.5 MB. Free memory was 77.0 MB in the beginning and 75.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 04:37:43,764 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 1 procedures, 11 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 250.2ms, 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: 3.3ms SsaConstructionTime, 17.1ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 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: 20]: integer overflow possible integer overflow possible We found a FailurePath: [L16] int x, y; [L17] x = __VERIFIER_nondet_int() [L18] y = __VERIFIER_nondet_int() [L19] COND TRUE x >= 0 [L20] x + y * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 119.5 MB. Free memory is still 72.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 254.65 ms. Allocated memory is still 119.5 MB. Free memory was 89.8 MB in the beginning and 96.0 MB in the end (delta: -6.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.52 ms. Allocated memory is still 119.5 MB. Free memory was 96.0 MB in the beginning and 94.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.26 ms. Allocated memory is still 119.5 MB. Free memory was 94.9 MB in the beginning and 93.9 MB in the end (delta: 974.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 281.03 ms. Allocated memory is still 119.5 MB. Free memory was 93.9 MB in the beginning and 85.4 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * CodeCheck took 313.86 ms. Allocated memory is still 119.5 MB. Free memory was 85.4 MB in the beginning and 77.0 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Witness Printer took 44.17 ms. Allocated memory is still 119.5 MB. Free memory was 77.0 MB in the beginning and 75.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 04:37:43,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f09b37e-d54c-472b-94c7-d8c43725b8af/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...