./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/nec11.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac8d2b1-2d0b-41fa-9cac-250e58bf9094/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac8d2b1-2d0b-41fa-9cac-250e58bf9094/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac8d2b1-2d0b-41fa-9cac-250e58bf9094/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac8d2b1-2d0b-41fa-9cac-250e58bf9094/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/nec11.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac8d2b1-2d0b-41fa-9cac-250e58bf9094/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac8d2b1-2d0b-41fa-9cac-250e58bf9094/bin/ukojak-Rh5K9KB4LI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b78564a93d1d434db2fa377a9b33de67cda5b233a427ae8d3550b20661e154a3 ..................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 03:06:51,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 03:06:51,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 03:06:51,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 03:06:51,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 03:06:51,306 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 03:06:51,309 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 03:06:51,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 03:06:51,317 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 03:06:51,326 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 03:06:51,327 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 03:06:51,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 03:06:51,334 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 03:06:51,336 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 03:06:51,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 03:06:51,347 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 03:06:51,351 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 03:06:51,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 03:06:51,356 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 03:06:51,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 03:06:51,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 03:06:51,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 03:06:51,373 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 03:06:51,374 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 03:06:51,386 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 03:06:51,387 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 03:06:51,387 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 03:06:51,390 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 03:06:51,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 03:06:51,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 03:06:51,393 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 03:06:51,394 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 03:06:51,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 03:06:51,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 03:06:51,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 03:06:51,401 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 03:06:51,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 03:06:51,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 03:06:51,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 03:06:51,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 03:06:51,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 03:06:51,406 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac8d2b1-2d0b-41fa-9cac-250e58bf9094/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 03:06:51,437 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 03:06:51,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 03:06:51,438 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 03:06:51,439 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 03:06:51,440 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 03:06:51,440 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 03:06:51,440 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 03:06:51,441 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 03:06:51,441 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 03:06:51,441 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 03:06:51,441 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 03:06:51,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 03:06:51,442 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 03:06:51,442 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 03:06:51,442 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 03:06:51,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 03:06:51,443 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 03:06:51,443 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 03:06:51,444 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 03:06:51,444 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 03:06:51,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 03:06:51,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:06:51,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 03:06:51,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 03:06:51,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 03:06:51,445 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 03:06:51,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 03:06:51,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 03:06:51,446 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_aac8d2b1-2d0b-41fa-9cac-250e58bf9094/bin/ukojak-Rh5K9KB4LI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac8d2b1-2d0b-41fa-9cac-250e58bf9094/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b78564a93d1d434db2fa377a9b33de67cda5b233a427ae8d3550b20661e154a3 [2021-10-29 03:06:51,848 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 03:06:51,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 03:06:51,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 03:06:51,879 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 03:06:51,881 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 03:06:51,884 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac8d2b1-2d0b-41fa-9cac-250e58bf9094/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/loops/nec11.c [2021-10-29 03:06:51,968 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac8d2b1-2d0b-41fa-9cac-250e58bf9094/bin/ukojak-Rh5K9KB4LI/data/f553d3c7e/9fc3321bf55a419e972ccb3f4b922336/FLAG966470b66 [2021-10-29 03:06:52,582 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 03:06:52,585 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac8d2b1-2d0b-41fa-9cac-250e58bf9094/sv-benchmarks/c/loops/nec11.c [2021-10-29 03:06:52,597 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac8d2b1-2d0b-41fa-9cac-250e58bf9094/bin/ukojak-Rh5K9KB4LI/data/f553d3c7e/9fc3321bf55a419e972ccb3f4b922336/FLAG966470b66 [2021-10-29 03:06:52,949 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac8d2b1-2d0b-41fa-9cac-250e58bf9094/bin/ukojak-Rh5K9KB4LI/data/f553d3c7e/9fc3321bf55a419e972ccb3f4b922336 [2021-10-29 03:06:52,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 03:06:52,957 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 03:06:52,960 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 03:06:52,960 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 03:06:52,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 03:06:52,966 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:06:52" (1/1) ... [2021-10-29 03:06:52,971 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f448988 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:06:52, skipping insertion in model container [2021-10-29 03:06:52,971 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:06:52" (1/1) ... [2021-10-29 03:06:52,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 03:06:52,997 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 03:06:53,187 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_aac8d2b1-2d0b-41fa-9cac-250e58bf9094/sv-benchmarks/c/loops/nec11.c[317,330] [2021-10-29 03:06:53,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:06:53,211 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 03:06:53,224 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_aac8d2b1-2d0b-41fa-9cac-250e58bf9094/sv-benchmarks/c/loops/nec11.c[317,330] [2021-10-29 03:06:53,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:06:53,243 INFO L208 MainTranslator]: Completed translation [2021-10-29 03:06:53,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:06:53 WrapperNode [2021-10-29 03:06:53,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 03:06:53,246 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 03:06:53,246 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 03:06:53,246 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 03:06:53,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:06:53" (1/1) ... [2021-10-29 03:06:53,262 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:06:53" (1/1) ... [2021-10-29 03:06:53,285 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 03:06:53,286 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 03:06:53,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 03:06:53,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 03:06:53,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:06:53" (1/1) ... [2021-10-29 03:06:53,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:06:53" (1/1) ... [2021-10-29 03:06:53,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:06:53" (1/1) ... [2021-10-29 03:06:53,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:06:53" (1/1) ... [2021-10-29 03:06:53,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:06:53" (1/1) ... [2021-10-29 03:06:53,314 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:06:53" (1/1) ... [2021-10-29 03:06:53,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:06:53" (1/1) ... [2021-10-29 03:06:53,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 03:06:53,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 03:06:53,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 03:06:53,333 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 03:06:53,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:06:53" (1/1) ... [2021-10-29 03:06:53,343 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:06:53,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac8d2b1-2d0b-41fa-9cac-250e58bf9094/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 03:06:53,372 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac8d2b1-2d0b-41fa-9cac-250e58bf9094/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 03:06:53,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac8d2b1-2d0b-41fa-9cac-250e58bf9094/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 03:06:53,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 03:06:53,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 03:06:53,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 03:06:53,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 03:06:53,709 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 03:06:53,712 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-29 03:06:53,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:06:53 BoogieIcfgContainer [2021-10-29 03:06:53,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 03:06:53,732 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 03:06:53,732 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 03:06:53,745 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 03:06:53,751 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:06:53" (1/1) ... [2021-10-29 03:06:53,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 03:06:53,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:06:53,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2021-10-29 03:06:53,852 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2021-10-29 03:06:53,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 03:06:53,855 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:06:53,856 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:06:54,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:06:54,008 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:06:54,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:06:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:06:54,144 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:06:54,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:06:54,168 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2021-10-29 03:06:54,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 03:06:54 ImpRootNode [2021-10-29 03:06:54,194 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 03:06:54,197 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 03:06:54,197 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 03:06:54,198 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 03:06:54,198 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:06:53" (3/4) ... [2021-10-29 03:06:54,202 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 03:06:54,259 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac8d2b1-2d0b-41fa-9cac-250e58bf9094/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 03:06:54,265 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 03:06:54,268 INFO L168 Benchmark]: Toolchain (without parser) took 1310.09 ms. Allocated memory is still 107.0 MB. Free memory was 69.0 MB in the beginning and 56.8 MB in the end (delta: 12.2 MB). Peak memory consumption was 9.9 MB. Max. memory is 16.1 GB. [2021-10-29 03:06:54,271 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 107.0 MB. Free memory is still 85.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:06:54,272 INFO L168 Benchmark]: CACSL2BoogieTranslator took 285.14 ms. Allocated memory is still 107.0 MB. Free memory was 68.8 MB in the beginning and 82.4 MB in the end (delta: -13.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 03:06:54,275 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.88 ms. Allocated memory is still 107.0 MB. Free memory was 82.4 MB in the beginning and 81.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:06:54,276 INFO L168 Benchmark]: Boogie Preprocessor took 44.46 ms. Allocated memory is still 107.0 MB. Free memory was 81.1 MB in the beginning and 80.2 MB in the end (delta: 931.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:06:54,278 INFO L168 Benchmark]: RCFGBuilder took 399.15 ms. Allocated memory is still 107.0 MB. Free memory was 80.2 MB in the beginning and 69.4 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 03:06:54,279 INFO L168 Benchmark]: CodeCheck took 462.93 ms. Allocated memory is still 107.0 MB. Free memory was 69.4 MB in the beginning and 58.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 03:06:54,280 INFO L168 Benchmark]: Witness Printer took 68.76 ms. Allocated memory is still 107.0 MB. Free memory was 58.8 MB in the beginning and 56.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:06:54,284 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, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 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, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 7]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L15] int a[5]; [L16] int len=0; [L17] _Bool c=__VERIFIER_nondet_bool(); [L18] int i; [L21] COND FALSE !(\read(c)) [L6] COND TRUE !(cond) [L7] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 107.0 MB. Free memory is still 85.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 285.14 ms. Allocated memory is still 107.0 MB. Free memory was 68.8 MB in the beginning and 82.4 MB in the end (delta: -13.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.88 ms. Allocated memory is still 107.0 MB. Free memory was 82.4 MB in the beginning and 81.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.46 ms. Allocated memory is still 107.0 MB. Free memory was 81.1 MB in the beginning and 80.2 MB in the end (delta: 931.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 399.15 ms. Allocated memory is still 107.0 MB. Free memory was 80.2 MB in the beginning and 69.4 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 462.93 ms. Allocated memory is still 107.0 MB. Free memory was 69.4 MB in the beginning and 58.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 68.76 ms. Allocated memory is still 107.0 MB. Free memory was 58.8 MB in the beginning and 56.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-29 03:06:54,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aac8d2b1-2d0b-41fa-9cac-250e58bf9094/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...