./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/cstrchr_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef3b9-831b-42b1-8e1b-c585207e1abe/bin/ukojak-fKGseLULKY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef3b9-831b-42b1-8e1b-c585207e1abe/bin/ukojak-fKGseLULKY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef3b9-831b-42b1-8e1b-c585207e1abe/bin/ukojak-fKGseLULKY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef3b9-831b-42b1-8e1b-c585207e1abe/bin/ukojak-fKGseLULKY/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/cstrchr_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef3b9-831b-42b1-8e1b-c585207e1abe/bin/ukojak-fKGseLULKY/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef3b9-831b-42b1-8e1b-c585207e1abe/bin/ukojak-fKGseLULKY --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 efc45e5708d4a9b560055cd5abf7b168f9024833 ........................................................................................................................................................................................................................................................................................................................................... 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-4e77c04 [2021-10-13 04:56:04,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 04:56:04,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 04:56:04,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 04:56:04,415 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 04:56:04,417 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 04:56:04,419 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 04:56:04,422 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 04:56:04,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 04:56:04,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 04:56:04,428 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 04:56:04,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 04:56:04,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 04:56:04,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 04:56:04,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 04:56:04,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 04:56:04,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 04:56:04,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 04:56:04,440 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 04:56:04,443 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 04:56:04,446 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 04:56:04,448 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 04:56:04,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 04:56:04,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 04:56:04,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 04:56:04,456 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 04:56:04,457 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 04:56:04,458 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 04:56:04,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 04:56:04,460 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 04:56:04,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 04:56:04,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 04:56:04,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 04:56:04,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 04:56:04,466 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 04:56:04,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 04:56:04,467 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 04:56:04,468 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 04:56:04,468 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 04:56:04,470 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 04:56:04,471 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 04:56:04,472 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef3b9-831b-42b1-8e1b-c585207e1abe/bin/ukojak-fKGseLULKY/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-10-13 04:56:04,496 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 04:56:04,497 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 04:56:04,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 04:56:04,499 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 04:56:04,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 04:56:04,499 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 04:56:04,500 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 04:56:04,500 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 04:56:04,500 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 04:56:04,501 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 04:56:04,501 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-13 04:56:04,501 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-13 04:56:04,502 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-13 04:56:04,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 04:56:04,502 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 04:56:04,503 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 04:56:04,503 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-13 04:56:04,503 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-13 04:56:04,504 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 04:56:04,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 04:56:04,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 04:56:04,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 04:56:04,505 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-13 04:56:04,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 04:56:04,505 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_8edef3b9-831b-42b1-8e1b-c585207e1abe/bin/ukojak-fKGseLULKY/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef3b9-831b-42b1-8e1b-c585207e1abe/bin/ukojak-fKGseLULKY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efc45e5708d4a9b560055cd5abf7b168f9024833 [2021-10-13 04:56:04,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 04:56:04,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 04:56:04,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 04:56:04,887 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 04:56:04,888 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 04:56:04,889 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef3b9-831b-42b1-8e1b-c585207e1abe/bin/ukojak-fKGseLULKY/../../sv-benchmarks/c/array-memsafety/cstrchr_unsafe.i [2021-10-13 04:56:04,977 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef3b9-831b-42b1-8e1b-c585207e1abe/bin/ukojak-fKGseLULKY/data/a03f822a9/2d867674a4234de6a8eaf3c8b79ba1c5/FLAG2dfbc72e1 [2021-10-13 04:56:05,586 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 04:56:05,587 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef3b9-831b-42b1-8e1b-c585207e1abe/sv-benchmarks/c/array-memsafety/cstrchr_unsafe.i [2021-10-13 04:56:05,612 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef3b9-831b-42b1-8e1b-c585207e1abe/bin/ukojak-fKGseLULKY/data/a03f822a9/2d867674a4234de6a8eaf3c8b79ba1c5/FLAG2dfbc72e1 [2021-10-13 04:56:05,884 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef3b9-831b-42b1-8e1b-c585207e1abe/bin/ukojak-fKGseLULKY/data/a03f822a9/2d867674a4234de6a8eaf3c8b79ba1c5 [2021-10-13 04:56:05,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 04:56:05,888 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 04:56:05,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 04:56:05,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 04:56:05,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 04:56:05,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:56:05" (1/1) ... [2021-10-13 04:56:05,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11febf27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:56:05, skipping insertion in model container [2021-10-13 04:56:05,906 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:56:05" (1/1) ... [2021-10-13 04:56:05,920 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 04:56:05,979 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 04:56:06,319 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 04:56:06,330 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 04:56:06,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 04:56:06,410 INFO L208 MainTranslator]: Completed translation [2021-10-13 04:56:06,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:56:06 WrapperNode [2021-10-13 04:56:06,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 04:56:06,412 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 04:56:06,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 04:56:06,412 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 04:56:06,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:56:06" (1/1) ... [2021-10-13 04:56:06,434 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:56:06" (1/1) ... [2021-10-13 04:56:06,459 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 04:56:06,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 04:56:06,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 04:56:06,461 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 04:56:06,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:56:06" (1/1) ... [2021-10-13 04:56:06,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:56:06" (1/1) ... [2021-10-13 04:56:06,490 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:56:06" (1/1) ... [2021-10-13 04:56:06,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:56:06" (1/1) ... [2021-10-13 04:56:06,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:56:06" (1/1) ... [2021-10-13 04:56:06,507 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:56:06" (1/1) ... [2021-10-13 04:56:06,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:56:06" (1/1) ... [2021-10-13 04:56:06,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 04:56:06,512 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 04:56:06,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 04:56:06,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 04:56:06,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:56:06" (1/1) ... [2021-10-13 04:56:06,538 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-13 04:56:06,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef3b9-831b-42b1-8e1b-c585207e1abe/bin/ukojak-fKGseLULKY/z3 [2021-10-13 04:56:06,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef3b9-831b-42b1-8e1b-c585207e1abe/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-13 04:56:06,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef3b9-831b-42b1-8e1b-c585207e1abe/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-13 04:56:06,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 04:56:06,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 04:56:06,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-13 04:56:06,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 04:56:06,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 04:56:06,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 04:56:07,171 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 04:56:07,171 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-13 04:56:07,174 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:56:07 BoogieIcfgContainer [2021-10-13 04:56:07,174 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 04:56:07,175 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-13 04:56:07,175 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-13 04:56:07,187 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-13 04:56:07,187 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:56:07" (1/1) ... [2021-10-13 04:56:07,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 04:56:07,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:56:07,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 31 states and 34 transitions. [2021-10-13 04:56:07,248 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2021-10-13 04:56:07,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 04:56:07,251 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:56:07,252 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:56:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:56:07,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:56:07,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:56:07,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 30 states and 33 transitions. [2021-10-13 04:56:07,432 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2021-10-13 04:56:07,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 04:56:07,432 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:56:07,433 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:56:07,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:56:07,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:56:07,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:56:07,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 32 states and 37 transitions. [2021-10-13 04:56:07,701 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2021-10-13 04:56:07,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 04:56:07,703 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:56:07,704 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:56:07,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:56:07,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:56:07,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:56:07,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 31 states and 36 transitions. [2021-10-13 04:56:07,739 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2021-10-13 04:56:07,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-13 04:56:07,739 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:56:07,740 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:56:07,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:56:07,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:56:08,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:56:08,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 32 states and 38 transitions. [2021-10-13 04:56:08,049 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2021-10-13 04:56:08,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 04:56:08,050 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:56:08,050 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:56:08,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:56:08,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:56:08,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:56:08,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 33 states and 39 transitions. [2021-10-13 04:56:08,160 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2021-10-13 04:56:08,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-13 04:56:08,160 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:56:08,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:56:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:56:08,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:56:08,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:56:08,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 34 states and 42 transitions. [2021-10-13 04:56:08,435 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2021-10-13 04:56:08,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 04:56:08,435 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:56:08,436 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:56:08,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:56:08,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:56:09,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:56:09,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 37 states and 49 transitions. [2021-10-13 04:56:09,204 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions. [2021-10-13 04:56:09,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-13 04:56:09,204 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:56:09,205 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:56:09,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:56:09,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:56:09,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:56:09,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 38 states and 51 transitions. [2021-10-13 04:56:09,591 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 51 transitions. [2021-10-13 04:56:09,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 04:56:09,591 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:56:09,592 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:56:09,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:56:09,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:56:09,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:56:09,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 37 states and 50 transitions. [2021-10-13 04:56:09,624 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 50 transitions. [2021-10-13 04:56:09,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-13 04:56:09,625 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:56:09,625 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:56:09,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:56:09,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:56:09,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:56:09,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 39 states and 53 transitions. [2021-10-13 04:56:09,758 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2021-10-13 04:56:09,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 04:56:09,758 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:56:09,759 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:56:09,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:56:09,904 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:56:10,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:56:10,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 32 states and 38 transitions. [2021-10-13 04:56:10,182 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2021-10-13 04:56:10,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 04:56:10,182 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:56:10,183 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:56:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:56:10,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:56:10,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:56:10,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 29 states and 34 transitions. [2021-10-13 04:56:10,220 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2021-10-13 04:56:10,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 04:56:10,220 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:56:10,221 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:56:10,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:56:10,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:56:10,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:56:10,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 37 transitions. [2021-10-13 04:56:10,282 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2021-10-13 04:56:10,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-13 04:56:10,283 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:56:10,283 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:56:10,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 04:56:10,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 04:56:10,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-13 04:56:10,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 32 states and 38 transitions. [2021-10-13 04:56:10,538 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2021-10-13 04:56:10,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 04:56:10,538 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-13 04:56:10,539 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 04:56:10,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:56:10,554 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 04:56:10,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:56:10,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:56:10,601 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 04:56:10,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 04:56:10,629 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 15 iterations. [2021-10-13 04:56:10,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.10 04:56:10 ImpRootNode [2021-10-13 04:56:10,682 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-13 04:56:10,682 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 04:56:10,683 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 04:56:10,683 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 04:56:10,683 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:56:07" (3/4) ... [2021-10-13 04:56:10,685 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-13 04:56:10,742 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef3b9-831b-42b1-8e1b-c585207e1abe/bin/ukojak-fKGseLULKY/witness.graphml [2021-10-13 04:56:10,742 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 04:56:10,744 INFO L168 Benchmark]: Toolchain (without parser) took 4854.89 ms. Allocated memory was 111.1 MB in the beginning and 144.7 MB in the end (delta: 33.6 MB). Free memory was 88.8 MB in the beginning and 68.1 MB in the end (delta: 20.6 MB). Peak memory consumption was 52.4 MB. Max. memory is 16.1 GB. [2021-10-13 04:56:10,744 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 81.8 MB. Free memory is still 60.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 04:56:10,745 INFO L168 Benchmark]: CACSL2BoogieTranslator took 521.29 ms. Allocated memory is still 111.1 MB. Free memory was 88.8 MB in the beginning and 81.1 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 04:56:10,746 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.26 ms. Allocated memory is still 111.1 MB. Free memory was 81.1 MB in the beginning and 79.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 04:56:10,747 INFO L168 Benchmark]: Boogie Preprocessor took 51.54 ms. Allocated memory is still 111.1 MB. Free memory was 79.0 MB in the beginning and 77.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 04:56:10,747 INFO L168 Benchmark]: RCFGBuilder took 662.60 ms. Allocated memory is still 111.1 MB. Free memory was 77.7 MB in the beginning and 61.1 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-13 04:56:10,748 INFO L168 Benchmark]: CodeCheck took 3506.67 ms. Allocated memory was 111.1 MB in the beginning and 144.7 MB in the end (delta: 33.6 MB). Free memory was 61.1 MB in the beginning and 70.2 MB in the end (delta: -9.1 MB). Peak memory consumption was 24.7 MB. Max. memory is 16.1 GB. [2021-10-13 04:56:10,749 INFO L168 Benchmark]: Witness Printer took 59.77 ms. Allocated memory is still 144.7 MB. Free memory was 70.2 MB in the beginning and 68.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 04:56:10,754 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, 31 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 3420.2ms, OverallIterations: 15, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 33104 SDtfs, 44528 SDslu, 20800 SDs, 0 SdLazy, 214226 SolverSat, 76534 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1414.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 606 GetRequests, 520 SyntacticMatches, 12 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2150 ImplicationChecksByTransitivity, 2327.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 26.2ms SsaConstructionTime, 134.6ms SatisfiabilityAnalysisTime, 846.2ms InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 370 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 11 PerfectInterpolantSequences, 2/10 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 537]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L515] int length = __VERIFIER_nondet_int(); [L516] COND TRUE length < 1 [L517] length = 1 [L519] char* nondetString = (char*) malloc(length * sizeof(char)); [L521] int i = 0; [L521] COND FALSE !(i < length - 1) [L526] nondetString[length-1] = '\0' [L527] return nondetString; [L536] char* s = build_nondet_String(); [L531] EXPR \read(*s) [L531] *s != '\0' && *s != (char)c [L531] COND FALSE !(*s != '\0' && *s != (char)c) [L533] EXPR \read(*s) [L533] EXPR (*s == c) ? (char *) s : 0 [L533] return ( (*s == c) ? (char *) s : 0 ); * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 81.8 MB. Free memory is still 60.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 521.29 ms. Allocated memory is still 111.1 MB. Free memory was 88.8 MB in the beginning and 81.1 MB in the end (delta: 7.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.26 ms. Allocated memory is still 111.1 MB. Free memory was 81.1 MB in the beginning and 79.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.54 ms. Allocated memory is still 111.1 MB. Free memory was 79.0 MB in the beginning and 77.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 662.60 ms. Allocated memory is still 111.1 MB. Free memory was 77.7 MB in the beginning and 61.1 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * CodeCheck took 3506.67 ms. Allocated memory was 111.1 MB in the beginning and 144.7 MB in the end (delta: 33.6 MB). Free memory was 61.1 MB in the beginning and 70.2 MB in the end (delta: -9.1 MB). Peak memory consumption was 24.7 MB. Max. memory is 16.1 GB. * Witness Printer took 59.77 ms. Allocated memory is still 144.7 MB. Free memory was 70.2 MB in the beginning and 68.1 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! [2021-10-13 04:56:10,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8edef3b9-831b-42b1-8e1b-c585207e1abe/bin/ukojak-fKGseLULKY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...