./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/freeAlloca.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797e1cd6-94c9-4b03-9e46-325896d50d8c/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797e1cd6-94c9-4b03-9e46-325896d50d8c/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_797e1cd6-94c9-4b03-9e46-325896d50d8c/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797e1cd6-94c9-4b03-9e46-325896d50d8c/bin/ukojak-Rh5K9KB4LI/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/freeAlloca.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797e1cd6-94c9-4b03-9e46-325896d50d8c/bin/ukojak-Rh5K9KB4LI/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797e1cd6-94c9-4b03-9e46-325896d50d8c/bin/ukojak-Rh5K9KB4LI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cb3174b12ccafcfa2421015218ce7e009c2319e912e783d4246aed1266b2586b ................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 03:07:52,450 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 03:07:52,452 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 03:07:52,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 03:07:52,489 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 03:07:52,490 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 03:07:52,492 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 03:07:52,494 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 03:07:52,497 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 03:07:52,498 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 03:07:52,500 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 03:07:52,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 03:07:52,502 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 03:07:52,503 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 03:07:52,505 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 03:07:52,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 03:07:52,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 03:07:52,510 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 03:07:52,512 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 03:07:52,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 03:07:52,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 03:07:52,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 03:07:52,524 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 03:07:52,527 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 03:07:52,531 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 03:07:52,540 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 03:07:52,540 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 03:07:52,542 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 03:07:52,542 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 03:07:52,543 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 03:07:52,544 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 03:07:52,545 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 03:07:52,548 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 03:07:52,549 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 03:07:52,551 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 03:07:52,552 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 03:07:52,553 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 03:07:52,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 03:07:52,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 03:07:52,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 03:07:52,556 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 03:07:52,557 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797e1cd6-94c9-4b03-9e46-325896d50d8c/bin/ukojak-Rh5K9KB4LI/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-10-29 03:07:52,600 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 03:07:52,601 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 03:07:52,603 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 03:07:52,603 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 03:07:52,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 03:07:52,604 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 03:07:52,604 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 03:07:52,604 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 03:07:52,610 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 03:07:52,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 03:07:52,612 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 03:07:52,612 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 03:07:52,612 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 03:07:52,613 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 03:07:52,613 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 03:07:52,613 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 03:07:52,613 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 03:07:52,614 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 03:07:52,614 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 03:07:52,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:07:52,614 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 03:07:52,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 03:07:52,615 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 03:07:52,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 03:07:52,615 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_797e1cd6-94c9-4b03-9e46-325896d50d8c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797e1cd6-94c9-4b03-9e46-325896d50d8c/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cb3174b12ccafcfa2421015218ce7e009c2319e912e783d4246aed1266b2586b [2021-10-29 03:07:52,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 03:07:52,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 03:07:52,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 03:07:52,965 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 03:07:52,968 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 03:07:52,969 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797e1cd6-94c9-4b03-9e46-325896d50d8c/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/memsafety-ext3/freeAlloca.c [2021-10-29 03:07:53,042 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797e1cd6-94c9-4b03-9e46-325896d50d8c/bin/ukojak-Rh5K9KB4LI/data/ca7b00049/b64ef9af9f3841ab9024a026d10a03bc/FLAG7cee965e6 [2021-10-29 03:07:53,593 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 03:07:53,595 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797e1cd6-94c9-4b03-9e46-325896d50d8c/sv-benchmarks/c/memsafety-ext3/freeAlloca.c [2021-10-29 03:07:53,607 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797e1cd6-94c9-4b03-9e46-325896d50d8c/bin/ukojak-Rh5K9KB4LI/data/ca7b00049/b64ef9af9f3841ab9024a026d10a03bc/FLAG7cee965e6 [2021-10-29 03:07:53,960 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797e1cd6-94c9-4b03-9e46-325896d50d8c/bin/ukojak-Rh5K9KB4LI/data/ca7b00049/b64ef9af9f3841ab9024a026d10a03bc [2021-10-29 03:07:53,964 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 03:07:53,965 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 03:07:53,967 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 03:07:53,967 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 03:07:53,971 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 03:07:53,973 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:07:53" (1/1) ... [2021-10-29 03:07:53,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75cbb17a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:53, skipping insertion in model container [2021-10-29 03:07:53,975 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:07:53" (1/1) ... [2021-10-29 03:07:53,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 03:07:54,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 03:07:54,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:07:54,194 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 03:07:54,213 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:07:54,230 INFO L208 MainTranslator]: Completed translation [2021-10-29 03:07:54,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:54 WrapperNode [2021-10-29 03:07:54,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 03:07:54,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 03:07:54,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 03:07:54,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 03:07:54,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:54" (1/1) ... [2021-10-29 03:07:54,249 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:54" (1/1) ... [2021-10-29 03:07:54,271 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 03:07:54,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 03:07:54,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 03:07:54,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 03:07:54,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:54" (1/1) ... [2021-10-29 03:07:54,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:54" (1/1) ... [2021-10-29 03:07:54,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:54" (1/1) ... [2021-10-29 03:07:54,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:54" (1/1) ... [2021-10-29 03:07:54,300 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:54" (1/1) ... [2021-10-29 03:07:54,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:54" (1/1) ... [2021-10-29 03:07:54,304 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:54" (1/1) ... [2021-10-29 03:07:54,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 03:07:54,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 03:07:54,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 03:07:54,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 03:07:54,316 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:07:54" (1/1) ... [2021-10-29 03:07:54,324 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:07:54,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797e1cd6-94c9-4b03-9e46-325896d50d8c/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 03:07:54,354 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797e1cd6-94c9-4b03-9e46-325896d50d8c/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 03:07:54,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797e1cd6-94c9-4b03-9e46-325896d50d8c/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 03:07:54,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 03:07:54,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 03:07:54,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 03:07:54,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 03:07:54,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 03:07:54,404 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 03:07:54,715 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 03:07:54,715 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-10-29 03:07:54,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:07:54 BoogieIcfgContainer [2021-10-29 03:07:54,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 03:07:54,719 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 03:07:54,719 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 03:07:54,729 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 03:07:54,729 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:07:54" (1/1) ... [2021-10-29 03:07:54,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 03:07:54,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:54,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 19 states and 20 transitions. [2021-10-29 03:07:54,773 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-10-29 03:07:54,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 03:07:54,776 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:54,777 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:54,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:55,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:07:55,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:55,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 18 states and 19 transitions. [2021-10-29 03:07:55,081 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2021-10-29 03:07:55,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 03:07:55,100 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:55,101 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:55,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:55,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:07:55,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:55,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 20 states and 21 transitions. [2021-10-29 03:07:55,338 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2021-10-29 03:07:55,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 03:07:55,339 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:55,339 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:55,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:07:55,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:55,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 19 states and 20 transitions. [2021-10-29 03:07:55,895 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-10-29 03:07:55,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 03:07:55,896 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:55,896 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:55,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:55,940 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:07:55,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:55,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 18 states and 19 transitions. [2021-10-29 03:07:55,953 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2021-10-29 03:07:55,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 03:07:55,953 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:55,954 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:55,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:56,008 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 03:07:56,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:56,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 17 states and 18 transitions. [2021-10-29 03:07:56,133 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2021-10-29 03:07:56,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 03:07:56,134 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:56,134 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:56,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:56,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:07:56,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:56,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 18 states and 19 transitions. [2021-10-29 03:07:56,383 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2021-10-29 03:07:56,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 03:07:56,384 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:56,384 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:56,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:56,457 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-29 03:07:56,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:56,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 17 states and 18 transitions. [2021-10-29 03:07:56,487 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2021-10-29 03:07:56,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 03:07:56,487 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:56,488 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:56,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:56,536 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:07:56,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:56,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 19 states and 20 transitions. [2021-10-29 03:07:56,805 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2021-10-29 03:07:56,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 03:07:56,806 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:56,806 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:56,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:56,897 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:07:57,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:57,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 21 states and 22 transitions. [2021-10-29 03:07:57,166 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2021-10-29 03:07:57,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 03:07:57,167 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:57,168 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:57,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:57,242 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:07:57,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:57,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 23 states and 24 transitions. [2021-10-29 03:07:57,546 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2021-10-29 03:07:57,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 03:07:57,547 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:57,547 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:57,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:57,616 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:07:57,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:57,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 25 states and 26 transitions. [2021-10-29 03:07:57,951 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2021-10-29 03:07:57,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-29 03:07:57,952 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:57,952 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:57,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:58,033 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:07:58,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:58,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 27 states and 28 transitions. [2021-10-29 03:07:58,388 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2021-10-29 03:07:58,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-29 03:07:58,389 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:58,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:58,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:58,463 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:07:58,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:58,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 29 states and 30 transitions. [2021-10-29 03:07:58,866 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2021-10-29 03:07:58,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-29 03:07:58,867 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:58,868 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:58,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:58,955 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:07:59,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:59,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 31 states and 32 transitions. [2021-10-29 03:07:59,362 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2021-10-29 03:07:59,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-29 03:07:59,363 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:59,363 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:59,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:59,441 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:07:59,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:07:59,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 33 transitions. [2021-10-29 03:07:59,744 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 33 transitions. [2021-10-29 03:07:59,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-29 03:07:59,745 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:07:59,745 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:07:59,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:07:59,904 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-10-29 03:08:02,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:08:02,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 35 transitions. [2021-10-29 03:08:02,967 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 35 transitions. [2021-10-29 03:08:02,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-29 03:08:02,968 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:08:02,968 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:08:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:08:02,989 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:08:03,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:08:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:08:03,104 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:08:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:08:03,210 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 17 iterations. [2021-10-29 03:08:03,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 03:08:03 ImpRootNode [2021-10-29 03:08:03,268 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 03:08:03,268 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 03:08:03,279 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 03:08:03,280 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 03:08:03,280 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:07:54" (3/4) ... [2021-10-29 03:08:03,282 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 03:08:03,368 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797e1cd6-94c9-4b03-9e46-325896d50d8c/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 03:08:03,368 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 03:08:03,370 INFO L168 Benchmark]: Toolchain (without parser) took 9403.53 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 52.2 MB in the beginning and 85.7 MB in the end (delta: -33.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:08:03,371 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 92.3 MB. Free memory is still 68.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:08:03,372 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.16 ms. Allocated memory is still 92.3 MB. Free memory was 52.1 MB in the beginning and 69.2 MB in the end (delta: -17.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:08:03,375 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.09 ms. Allocated memory is still 92.3 MB. Free memory was 69.2 MB in the beginning and 67.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:08:03,379 INFO L168 Benchmark]: Boogie Preprocessor took 34.25 ms. Allocated memory is still 92.3 MB. Free memory was 67.8 MB in the beginning and 66.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:08:03,380 INFO L168 Benchmark]: RCFGBuilder took 410.76 ms. Allocated memory is still 92.3 MB. Free memory was 66.7 MB in the beginning and 56.3 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 03:08:03,381 INFO L168 Benchmark]: CodeCheck took 8549.37 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 56.3 MB in the beginning and 87.8 MB in the end (delta: -31.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:08:03,385 INFO L168 Benchmark]: Witness Printer took 99.93 ms. Allocated memory is still 121.6 MB. Free memory was 87.8 MB in the beginning and 85.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:08:03,387 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, 19 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 8.4s, OverallIterations: 17, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 145412 SDtfs, 214064 SDslu, 75788 SDs, 0 SdLazy, 815262 SolverSat, 347174 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1429 GetRequests, 1178 SyntacticMatches, 95 SemanticMatches, 156 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9112 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 225 NumberOfCodeBlocks, 225 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 183 ConstructedInterpolants, 0 QuantifiedInterpolants, 642 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 7 PerfectInterpolantSequences, 108/393 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: 14]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L7] char *p = alloca(10 * sizeof(char)); [L9] int i = 0; [L9] COND TRUE i < 10 [L10] p[i] = __VERIFIER_nondet_char() [L9] i++ [L9] COND TRUE i < 10 [L10] p[i] = __VERIFIER_nondet_char() [L9] i++ [L9] COND TRUE i < 10 [L10] p[i] = __VERIFIER_nondet_char() [L9] i++ [L9] COND TRUE i < 10 [L10] p[i] = __VERIFIER_nondet_char() [L9] i++ [L9] COND TRUE i < 10 [L10] p[i] = __VERIFIER_nondet_char() [L9] i++ [L9] COND TRUE i < 10 [L10] p[i] = __VERIFIER_nondet_char() [L9] i++ [L9] COND TRUE i < 10 [L10] p[i] = __VERIFIER_nondet_char() [L9] i++ [L9] COND TRUE i < 10 [L10] p[i] = __VERIFIER_nondet_char() [L9] i++ [L9] COND TRUE i < 10 [L10] p[i] = __VERIFIER_nondet_char() [L9] i++ [L9] COND TRUE i < 10 [L10] p[i] = __VERIFIER_nondet_char() [L9] i++ [L9] COND FALSE !(i < 10) [L13] EXPR p[2] [L13] COND TRUE p[2] == 'a' [L14] free(p) [L14] free(p) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 92.3 MB. Free memory is still 68.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 264.16 ms. Allocated memory is still 92.3 MB. Free memory was 52.1 MB in the beginning and 69.2 MB in the end (delta: -17.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.09 ms. Allocated memory is still 92.3 MB. Free memory was 69.2 MB in the beginning and 67.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.25 ms. Allocated memory is still 92.3 MB. Free memory was 67.8 MB in the beginning and 66.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 410.76 ms. Allocated memory is still 92.3 MB. Free memory was 66.7 MB in the beginning and 56.3 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 8549.37 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 56.3 MB in the beginning and 87.8 MB in the end (delta: -31.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 99.93 ms. Allocated memory is still 121.6 MB. Free memory was 87.8 MB in the beginning and 85.7 MB in the end (delta: 2.1 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 03:08:03,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_797e1cd6-94c9-4b03-9e46-325896d50d8c/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...