./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark47_linear.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_4f362f51-78a0-4aac-8ee5-cedfbeaa1c5b/bin/ukojak-fKGseLULKY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f362f51-78a0-4aac-8ee5-cedfbeaa1c5b/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_4f362f51-78a0-4aac-8ee5-cedfbeaa1c5b/bin/ukojak-fKGseLULKY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f362f51-78a0-4aac-8ee5-cedfbeaa1c5b/bin/ukojak-fKGseLULKY/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark47_linear.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f362f51-78a0-4aac-8ee5-cedfbeaa1c5b/bin/ukojak-fKGseLULKY/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f362f51-78a0-4aac-8ee5-cedfbeaa1c5b/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 32bit --witnessprinter.graph.data.programhash 091ae9d10f73e4826e5ce40c092816900bcc502a .............................................................................................................................................................................................................................. 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 03:18:30,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 03:18:30,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 03:18:30,329 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 03:18:30,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 03:18:30,334 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 03:18:30,337 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 03:18:30,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 03:18:30,344 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 03:18:30,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 03:18:30,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 03:18:30,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 03:18:30,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 03:18:30,355 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 03:18:30,358 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 03:18:30,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 03:18:30,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 03:18:30,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 03:18:30,371 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 03:18:30,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 03:18:30,380 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 03:18:30,382 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 03:18:30,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 03:18:30,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 03:18:30,395 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 03:18:30,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 03:18:30,396 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 03:18:30,398 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 03:18:30,399 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 03:18:30,400 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 03:18:30,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 03:18:30,402 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 03:18:30,404 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 03:18:30,405 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 03:18:30,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 03:18:30,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 03:18:30,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 03:18:30,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 03:18:30,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 03:18:30,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 03:18:30,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 03:18:30,412 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f362f51-78a0-4aac-8ee5-cedfbeaa1c5b/bin/ukojak-fKGseLULKY/config/svcomp-Overflow-32bit-Kojak_Default.epf [2021-10-13 03:18:30,458 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 03:18:30,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 03:18:30,460 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 03:18:30,460 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-13 03:18:30,461 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 03:18:30,461 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 03:18:30,462 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 03:18:30,462 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 03:18:30,468 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 03:18:30,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 03:18:30,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 03:18:30,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 03:18:30,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 03:18:30,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 03:18:30,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 03:18:30,471 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-13 03:18:30,471 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 03:18:30,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 03:18:30,471 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 03:18:30,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 03:18:30,472 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-13 03:18:30,472 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-13 03:18:30,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 03:18:30,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 03:18:30,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 03:18:30,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 03:18:30,473 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 03:18:30,473 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-13 03:18:30,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 03:18:30,475 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 03:18:30,475 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_4f362f51-78a0-4aac-8ee5-cedfbeaa1c5b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f362f51-78a0-4aac-8ee5-cedfbeaa1c5b/bin/ukojak-fKGseLULKY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 091ae9d10f73e4826e5ce40c092816900bcc502a [2021-10-13 03:18:30,760 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 03:18:30,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 03:18:30,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 03:18:30,795 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 03:18:30,796 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 03:18:30,797 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f362f51-78a0-4aac-8ee5-cedfbeaa1c5b/bin/ukojak-fKGseLULKY/../../sv-benchmarks/c/loop-zilu/benchmark47_linear.i [2021-10-13 03:18:30,865 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f362f51-78a0-4aac-8ee5-cedfbeaa1c5b/bin/ukojak-fKGseLULKY/data/2b174938c/2db12deb5c11489e8929c84d8ab6adf3/FLAGe00a89790 [2021-10-13 03:18:31,247 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 03:18:31,247 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f362f51-78a0-4aac-8ee5-cedfbeaa1c5b/sv-benchmarks/c/loop-zilu/benchmark47_linear.i [2021-10-13 03:18:31,253 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f362f51-78a0-4aac-8ee5-cedfbeaa1c5b/bin/ukojak-fKGseLULKY/data/2b174938c/2db12deb5c11489e8929c84d8ab6adf3/FLAGe00a89790 [2021-10-13 03:18:31,646 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f362f51-78a0-4aac-8ee5-cedfbeaa1c5b/bin/ukojak-fKGseLULKY/data/2b174938c/2db12deb5c11489e8929c84d8ab6adf3 [2021-10-13 03:18:31,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 03:18:31,650 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 03:18:31,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 03:18:31,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 03:18:31,661 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 03:18:31,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:18:31" (1/1) ... [2021-10-13 03:18:31,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@da44c44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:18:31, skipping insertion in model container [2021-10-13 03:18:31,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 03:18:31" (1/1) ... [2021-10-13 03:18:31,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 03:18:31,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 03:18:31,848 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f362f51-78a0-4aac-8ee5-cedfbeaa1c5b/sv-benchmarks/c/loop-zilu/benchmark47_linear.i[868,881] [2021-10-13 03:18:31,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 03:18:31,878 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 03:18:31,890 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f362f51-78a0-4aac-8ee5-cedfbeaa1c5b/sv-benchmarks/c/loop-zilu/benchmark47_linear.i[868,881] [2021-10-13 03:18:31,894 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 03:18:31,907 INFO L208 MainTranslator]: Completed translation [2021-10-13 03:18:31,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:18:31 WrapperNode [2021-10-13 03:18:31,908 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 03:18:31,909 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 03:18:31,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 03:18:31,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 03:18:31,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:18:31" (1/1) ... [2021-10-13 03:18:31,924 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:18:31" (1/1) ... [2021-10-13 03:18:31,943 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 03:18:31,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 03:18:31,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 03:18:31,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 03:18:31,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:18:31" (1/1) ... [2021-10-13 03:18:31,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:18:31" (1/1) ... [2021-10-13 03:18:31,955 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:18:31" (1/1) ... [2021-10-13 03:18:31,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:18:31" (1/1) ... [2021-10-13 03:18:31,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:18:31" (1/1) ... [2021-10-13 03:18:31,963 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:18:31" (1/1) ... [2021-10-13 03:18:31,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:18:31" (1/1) ... [2021-10-13 03:18:31,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 03:18:31,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 03:18:31,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 03:18:31,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 03:18:31,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 03:18:31" (1/1) ... [2021-10-13 03:18:31,983 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 03:18:31,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f362f51-78a0-4aac-8ee5-cedfbeaa1c5b/bin/ukojak-fKGseLULKY/z3 [2021-10-13 03:18:32,016 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f362f51-78a0-4aac-8ee5-cedfbeaa1c5b/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-13 03:18:32,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f362f51-78a0-4aac-8ee5-cedfbeaa1c5b/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-13 03:18:32,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 03:18:32,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 03:18:32,067 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 03:18:32,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 03:18:32,434 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 03:18:32,434 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-13 03:18:32,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:18:32 BoogieIcfgContainer [2021-10-13 03:18:32,437 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 03:18:32,438 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-13 03:18:32,438 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-13 03:18:32,450 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-13 03:18:32,450 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:18:32" (1/1) ... [2021-10-13 03:18:32,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 03:18:32,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:18:32,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 29 states and 33 transitions. [2021-10-13 03:18:32,497 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2021-10-13 03:18:32,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 03:18:32,500 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:18:32,501 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:18:32,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 03:18:32,647 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 03:18:32,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 03:18:32,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 28 states and 32 transitions. [2021-10-13 03:18:32,672 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2021-10-13 03:18:32,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 03:18:32,673 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 03:18:32,673 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 03:18:32,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 03:18:32,703 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 03:18:32,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 03:18:32,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 03:18:32,786 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 03:18:32,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 03:18:32,803 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2021-10-13 03:18:32,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.10 03:18:32 ImpRootNode [2021-10-13 03:18:32,825 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-13 03:18:32,826 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 03:18:32,826 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 03:18:32,826 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 03:18:32,827 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 03:18:32" (3/4) ... [2021-10-13 03:18:32,829 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 03:18:32,861 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4f362f51-78a0-4aac-8ee5-cedfbeaa1c5b/bin/ukojak-fKGseLULKY/witness.graphml [2021-10-13 03:18:32,862 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 03:18:32,864 INFO L168 Benchmark]: Toolchain (without parser) took 1212.84 ms. Allocated memory was 83.9 MB in the beginning and 119.5 MB in the end (delta: 35.7 MB). Free memory was 49.7 MB in the beginning and 66.1 MB in the end (delta: -16.4 MB). Peak memory consumption was 16.2 MB. Max. memory is 16.1 GB. [2021-10-13 03:18:32,865 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 83.9 MB. Free memory was 54.3 MB in the beginning and 54.3 MB in the end (delta: 25.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 03:18:32,867 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.73 ms. Allocated memory was 83.9 MB in the beginning and 119.5 MB in the end (delta: 35.7 MB). Free memory was 49.6 MB in the beginning and 95.8 MB in the end (delta: -46.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 03:18:32,868 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.24 ms. Allocated memory is still 119.5 MB. Free memory was 95.8 MB in the beginning and 94.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 03:18:32,869 INFO L168 Benchmark]: Boogie Preprocessor took 21.63 ms. Allocated memory is still 119.5 MB. Free memory was 94.3 MB in the beginning and 93.7 MB in the end (delta: 595.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 03:18:32,869 INFO L168 Benchmark]: RCFGBuilder took 470.32 ms. Allocated memory is still 119.5 MB. Free memory was 93.7 MB in the beginning and 81.7 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 03:18:32,870 INFO L168 Benchmark]: CodeCheck took 387.14 ms. Allocated memory is still 119.5 MB. Free memory was 81.7 MB in the beginning and 67.6 MB in the end (delta: 14.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-13 03:18:32,871 INFO L168 Benchmark]: Witness Printer took 36.34 ms. Allocated memory is still 119.5 MB. Free memory was 67.6 MB in the beginning and 66.1 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 03:18:32,877 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, 29 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 333.2ms, OverallIterations: 2, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 9 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 4 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 10.3ms SsaConstructionTime, 49.8ms SatisfiabilityAnalysisTime, 58.4ms InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 25]: integer overflow possible integer overflow possible We found a FailurePath: [L20] int x = __VERIFIER_nondet_int(); [L21] int y = __VERIFIER_nondet_int(); [L22] COND FALSE !(!(x