./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/cstrcat_unsafe.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_696c4c65-2c40-4ac4-a97f-304b8d5da164/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696c4c65-2c40-4ac4-a97f-304b8d5da164/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_696c4c65-2c40-4ac4-a97f-304b8d5da164/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696c4c65-2c40-4ac4-a97f-304b8d5da164/bin/ukojak-Rh5K9KB4LI/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/cstrcat_unsafe.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696c4c65-2c40-4ac4-a97f-304b8d5da164/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_696c4c65-2c40-4ac4-a97f-304b8d5da164/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 f35e4091ba483da9f0b2bb24c6ab92803922823d78b3627798806ae597763363 .............................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:21:31,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:21:31,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:21:31,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:21:31,260 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:21:31,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:21:31,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:21:31,271 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:21:31,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:21:31,283 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:21:31,284 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:21:31,286 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:21:31,287 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:21:31,290 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:21:31,292 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:21:31,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:21:31,303 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:21:31,304 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:21:31,306 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:21:31,313 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:21:31,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:21:31,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:21:31,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:21:31,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:21:31,325 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:21:31,325 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:21:31,326 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:21:31,331 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:21:31,331 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:21:31,333 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:21:31,334 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:21:31,335 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:21:31,337 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:21:31,338 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:21:31,340 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:21:31,341 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:21:31,341 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:21:31,342 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:21:31,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:21:31,343 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:21:31,344 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:21:31,345 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696c4c65-2c40-4ac4-a97f-304b8d5da164/bin/ukojak-Rh5K9KB4LI/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-10-29 04:21:31,393 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:21:31,394 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:21:31,396 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:21:31,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:21:31,397 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:21:31,397 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:21:31,398 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 04:21:31,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:21:31,398 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:21:31,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:21:31,400 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 04:21:31,400 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 04:21:31,400 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 04:21:31,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:21:31,401 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:21:31,401 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:21:31,401 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 04:21:31,402 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 04:21:31,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:21:31,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:21:31,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:21:31,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:21:31,403 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 04:21:31,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:21:31,403 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_696c4c65-2c40-4ac4-a97f-304b8d5da164/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696c4c65-2c40-4ac4-a97f-304b8d5da164/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f35e4091ba483da9f0b2bb24c6ab92803922823d78b3627798806ae597763363 [2021-10-29 04:21:31,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:21:31,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:21:31,740 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:21:31,741 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:21:31,742 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:21:31,743 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696c4c65-2c40-4ac4-a97f-304b8d5da164/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/array-memsafety/cstrcat_unsafe.c [2021-10-29 04:21:31,831 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696c4c65-2c40-4ac4-a97f-304b8d5da164/bin/ukojak-Rh5K9KB4LI/data/d91c93bf9/a47771e54af74fff80c0074c098d5d14/FLAG9f09d80e6 [2021-10-29 04:21:32,435 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:21:32,436 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696c4c65-2c40-4ac4-a97f-304b8d5da164/sv-benchmarks/c/array-memsafety/cstrcat_unsafe.c [2021-10-29 04:21:32,451 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696c4c65-2c40-4ac4-a97f-304b8d5da164/bin/ukojak-Rh5K9KB4LI/data/d91c93bf9/a47771e54af74fff80c0074c098d5d14/FLAG9f09d80e6 [2021-10-29 04:21:32,804 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696c4c65-2c40-4ac4-a97f-304b8d5da164/bin/ukojak-Rh5K9KB4LI/data/d91c93bf9/a47771e54af74fff80c0074c098d5d14 [2021-10-29 04:21:32,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:21:32,808 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:21:32,810 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:21:32,810 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:21:32,813 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:21:32,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:21:32" (1/1) ... [2021-10-29 04:21:32,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74207bde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:21:32, skipping insertion in model container [2021-10-29 04:21:32,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:21:32" (1/1) ... [2021-10-29 04:21:32,823 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:21:32,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:21:32,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:21:33,020 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:21:33,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:21:33,057 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:21:33,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:21:33 WrapperNode [2021-10-29 04:21:33,058 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:21:33,059 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:21:33,059 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:21:33,059 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:21:33,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:21:33" (1/1) ... [2021-10-29 04:21:33,077 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:21:33" (1/1) ... [2021-10-29 04:21:33,101 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:21:33,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:21:33,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:21:33,103 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:21:33,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:21:33" (1/1) ... [2021-10-29 04:21:33,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:21:33" (1/1) ... [2021-10-29 04:21:33,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:21:33" (1/1) ... [2021-10-29 04:21:33,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:21:33" (1/1) ... [2021-10-29 04:21:33,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:21:33" (1/1) ... [2021-10-29 04:21:33,138 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:21:33" (1/1) ... [2021-10-29 04:21:33,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:21:33" (1/1) ... [2021-10-29 04:21:33,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:21:33,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:21:33,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:21:33,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:21:33,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:21:33" (1/1) ... [2021-10-29 04:21:33,163 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:21:33,176 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696c4c65-2c40-4ac4-a97f-304b8d5da164/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 04:21:33,195 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696c4c65-2c40-4ac4-a97f-304b8d5da164/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 04:21:33,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696c4c65-2c40-4ac4-a97f-304b8d5da164/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 04:21:33,252 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 04:21:33,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:21:33,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:21:33,254 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 04:21:33,586 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:21:33,587 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-29 04:21:33,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:21:33 BoogieIcfgContainer [2021-10-29 04:21:33,589 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:21:33,590 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 04:21:33,591 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 04:21:33,616 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 04:21:33,616 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:21:33" (1/1) ... [2021-10-29 04:21:33,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:21:33,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:21:33,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2021-10-29 04:21:33,687 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2021-10-29 04:21:33,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-29 04:21:33,692 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:21:33,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:21:33,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:21:33,800 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:21:33,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:21:33,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:21:33,892 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:21:33,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:21:33,924 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2021-10-29 04:21:33,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 04:21:33 ImpRootNode [2021-10-29 04:21:33,949 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 04:21:33,952 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:21:33,952 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:21:33,952 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:21:33,953 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:21:33" (3/4) ... [2021-10-29 04:21:33,955 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 04:21:34,003 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696c4c65-2c40-4ac4-a97f-304b8d5da164/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 04:21:34,003 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:21:34,009 INFO L168 Benchmark]: Toolchain (without parser) took 1196.12 ms. Allocated memory was 117.4 MB in the beginning and 165.7 MB in the end (delta: 48.2 MB). Free memory was 88.4 MB in the beginning and 116.5 MB in the end (delta: -28.1 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:21:34,010 INFO L168 Benchmark]: CDTParser took 0.64 ms. Allocated memory is still 117.4 MB. Free memory is still 72.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:21:34,012 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.17 ms. Allocated memory was 117.4 MB in the beginning and 165.7 MB in the end (delta: 48.2 MB). Free memory was 88.1 MB in the beginning and 140.7 MB in the end (delta: -52.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:21:34,012 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.53 ms. Allocated memory is still 165.7 MB. Free memory was 140.7 MB in the beginning and 139.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:21:34,014 INFO L168 Benchmark]: Boogie Preprocessor took 49.00 ms. Allocated memory is still 165.7 MB. Free memory was 139.5 MB in the beginning and 138.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:21:34,015 INFO L168 Benchmark]: RCFGBuilder took 437.25 ms. Allocated memory is still 165.7 MB. Free memory was 138.2 MB in the beginning and 127.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:21:34,016 INFO L168 Benchmark]: CodeCheck took 358.80 ms. Allocated memory is still 165.7 MB. Free memory was 127.7 MB in the beginning and 118.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:21:34,017 INFO L168 Benchmark]: Witness Printer took 51.86 ms. Allocated memory is still 165.7 MB. Free memory was 118.0 MB in the beginning and 116.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:21:34,023 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, 17 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, 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, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 5]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L15] char *s1; [L16] char *s2; [L3] char *s = s1; [L5] \read(*s) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64 ms. Allocated memory is still 117.4 MB. Free memory is still 72.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 248.17 ms. Allocated memory was 117.4 MB in the beginning and 165.7 MB in the end (delta: 48.2 MB). Free memory was 88.1 MB in the beginning and 140.7 MB in the end (delta: -52.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.53 ms. Allocated memory is still 165.7 MB. Free memory was 140.7 MB in the beginning and 139.5 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.00 ms. Allocated memory is still 165.7 MB. Free memory was 139.5 MB in the beginning and 138.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 437.25 ms. Allocated memory is still 165.7 MB. Free memory was 138.2 MB in the beginning and 127.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 358.80 ms. Allocated memory is still 165.7 MB. Free memory was 127.7 MB in the beginning and 118.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Witness Printer took 51.86 ms. Allocated memory is still 165.7 MB. Free memory was 118.0 MB in the beginning and 116.5 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-29 04:21:34,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_696c4c65-2c40-4ac4-a97f-304b8d5da164/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...