./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/scopes4-2.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_5ce7384e-5634-482a-ab55-c30069f5ac99/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ce7384e-5634-482a-ab55-c30069f5ac99/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_5ce7384e-5634-482a-ab55-c30069f5ac99/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ce7384e-5634-482a-ab55-c30069f5ac99/bin/ukojak-Rh5K9KB4LI/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes4-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ce7384e-5634-482a-ab55-c30069f5ac99/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_5ce7384e-5634-482a-ab55-c30069f5ac99/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 d3e64a3bb1136adaedbe48fbb8a8a2a2e8de15e4ab22e021abc9c36f399fb6cc ..................................................................................................................................................................................................................................... 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 04:29:02,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:29:02,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:29:02,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:29:02,378 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:29:02,380 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:29:02,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:29:02,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:29:02,388 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:29:02,390 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:29:02,391 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:29:02,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:29:02,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:29:02,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:29:02,399 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:29:02,401 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:29:02,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:29:02,405 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:29:02,408 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:29:02,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:29:02,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:29:02,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:29:02,419 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:29:02,420 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:29:02,426 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:29:02,426 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:29:02,427 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:29:02,429 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:29:02,430 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:29:02,431 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:29:02,432 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:29:02,434 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:29:02,435 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:29:02,436 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:29:02,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:29:02,439 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:29:02,440 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:29:02,441 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:29:02,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:29:02,443 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:29:02,445 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:29:02,446 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ce7384e-5634-482a-ab55-c30069f5ac99/bin/ukojak-Rh5K9KB4LI/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-10-29 04:29:02,478 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:29:02,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:29:02,486 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:29:02,487 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:29:02,488 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:29:02,488 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:29:02,488 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 04:29:02,489 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:29:02,493 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:29:02,493 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:29:02,493 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 04:29:02,494 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 04:29:02,494 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 04:29:02,494 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:29:02,494 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:29:02,495 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:29:02,495 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 04:29:02,495 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 04:29:02,496 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:29:02,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:29:02,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:29:02,497 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:29:02,497 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 04:29:02,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:29:02,498 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_5ce7384e-5634-482a-ab55-c30069f5ac99/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ce7384e-5634-482a-ab55-c30069f5ac99/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3e64a3bb1136adaedbe48fbb8a8a2a2e8de15e4ab22e021abc9c36f399fb6cc [2021-10-29 04:29:02,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:29:02,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:29:02,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:29:02,889 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:29:02,890 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:29:02,892 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ce7384e-5634-482a-ab55-c30069f5ac99/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/memsafety-ext3/scopes4-2.c [2021-10-29 04:29:02,986 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ce7384e-5634-482a-ab55-c30069f5ac99/bin/ukojak-Rh5K9KB4LI/data/f74741dde/0098e76197b14805a46c7539da99b83e/FLAGac31d6eca [2021-10-29 04:29:03,621 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:29:03,623 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ce7384e-5634-482a-ab55-c30069f5ac99/sv-benchmarks/c/memsafety-ext3/scopes4-2.c [2021-10-29 04:29:03,641 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ce7384e-5634-482a-ab55-c30069f5ac99/bin/ukojak-Rh5K9KB4LI/data/f74741dde/0098e76197b14805a46c7539da99b83e/FLAGac31d6eca [2021-10-29 04:29:03,981 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ce7384e-5634-482a-ab55-c30069f5ac99/bin/ukojak-Rh5K9KB4LI/data/f74741dde/0098e76197b14805a46c7539da99b83e [2021-10-29 04:29:03,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:29:03,986 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:29:03,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:29:03,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:29:03,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:29:03,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:29:03" (1/1) ... [2021-10-29 04:29:03,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bb862d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:29:03, skipping insertion in model container [2021-10-29 04:29:03,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:29:03" (1/1) ... [2021-10-29 04:29:04,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:29:04,021 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:29:04,205 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:29:04,229 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:29:04,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:29:04,258 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:29:04,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:29:04 WrapperNode [2021-10-29 04:29:04,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:29:04,260 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:29:04,260 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:29:04,261 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:29:04,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:29:04" (1/1) ... [2021-10-29 04:29:04,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:29:04" (1/1) ... [2021-10-29 04:29:04,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:29:04,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:29:04,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:29:04,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:29:04,322 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:29:04" (1/1) ... [2021-10-29 04:29:04,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:29:04" (1/1) ... [2021-10-29 04:29:04,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:29:04" (1/1) ... [2021-10-29 04:29:04,325 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:29:04" (1/1) ... [2021-10-29 04:29:04,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:29:04" (1/1) ... [2021-10-29 04:29:04,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:29:04" (1/1) ... [2021-10-29 04:29:04,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:29:04" (1/1) ... [2021-10-29 04:29:04,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:29:04,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:29:04,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:29:04,339 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:29:04,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:29:04" (1/1) ... [2021-10-29 04:29:04,349 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:29:04,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ce7384e-5634-482a-ab55-c30069f5ac99/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 04:29:04,380 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ce7384e-5634-482a-ab55-c30069f5ac99/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 04:29:04,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ce7384e-5634-482a-ab55-c30069f5ac99/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 04:29:04,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 04:29:04,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:29:04,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:29:04,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 04:29:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:29:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:29:04,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 04:29:04,713 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:29:04,713 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-29 04:29:04,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:29:04 BoogieIcfgContainer [2021-10-29 04:29:04,717 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:29:04,718 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 04:29:04,718 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 04:29:04,732 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 04:29:04,733 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:29:04" (1/1) ... [2021-10-29 04:29:04,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:29:04,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:29:04,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 10 states and 9 transitions. [2021-10-29 04:29:04,817 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2021-10-29 04:29:04,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-29 04:29:04,820 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:29:04,821 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:29:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:29:05,022 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 04:29:05,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:29:05,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 9 states and 8 transitions. [2021-10-29 04:29:05,074 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2021-10-29 04:29:05,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-29 04:29:05,075 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:29:05,075 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:29:05,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:29:05,188 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 04:29:05,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:29:05,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 8 states and 7 transitions. [2021-10-29 04:29:05,352 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2021-10-29 04:29:05,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 04:29:05,353 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:29:05,354 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:29:05,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:29:05,411 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:29:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:29:05,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:29:05,528 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:29:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:29:05,556 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2021-10-29 04:29:05,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 04:29:05 ImpRootNode [2021-10-29 04:29:05,583 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 04:29:05,584 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:29:05,584 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:29:05,584 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:29:05,585 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:29:04" (3/4) ... [2021-10-29 04:29:05,588 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 04:29:05,632 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ce7384e-5634-482a-ab55-c30069f5ac99/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 04:29:05,633 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:29:05,635 INFO L168 Benchmark]: Toolchain (without parser) took 1647.83 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 62.1 MB in the beginning and 81.8 MB in the end (delta: -19.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:29:05,636 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 94.4 MB. Free memory is still 50.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:29:05,645 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.70 ms. Allocated memory is still 94.4 MB. Free memory was 61.9 MB in the beginning and 71.6 MB in the end (delta: -9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:29:05,646 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.42 ms. Allocated memory is still 94.4 MB. Free memory was 71.6 MB in the beginning and 70.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:29:05,647 INFO L168 Benchmark]: Boogie Preprocessor took 26.84 ms. Allocated memory is still 94.4 MB. Free memory was 70.2 MB in the beginning and 69.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:29:05,649 INFO L168 Benchmark]: RCFGBuilder took 378.84 ms. Allocated memory is still 94.4 MB. Free memory was 69.2 MB in the beginning and 58.2 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:29:05,650 INFO L168 Benchmark]: CodeCheck took 865.09 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 58.2 MB in the beginning and 83.4 MB in the end (delta: -25.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:29:05,651 INFO L168 Benchmark]: Witness Printer took 49.08 ms. Allocated memory is still 113.2 MB. Free memory was 83.4 MB in the beginning and 81.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:29:05,657 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, 10 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 18 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 17 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: 18]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L12] int arr[123]; [L5] int arr[1024]; [L6] arr[194] = 13 [L7] return arr + 1; [L7] return arr + 1; [L13] return foo2(); [L17] int *a = foo(); [L18] \read(*a) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 94.4 MB. Free memory is still 50.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 271.70 ms. Allocated memory is still 94.4 MB. Free memory was 61.9 MB in the beginning and 71.6 MB in the end (delta: -9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.42 ms. Allocated memory is still 94.4 MB. Free memory was 71.6 MB in the beginning and 70.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.84 ms. Allocated memory is still 94.4 MB. Free memory was 70.2 MB in the beginning and 69.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 378.84 ms. Allocated memory is still 94.4 MB. Free memory was 69.2 MB in the beginning and 58.2 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 865.09 ms. Allocated memory was 94.4 MB in the beginning and 113.2 MB in the end (delta: 18.9 MB). Free memory was 58.2 MB in the beginning and 83.4 MB in the end (delta: -25.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 49.08 ms. Allocated memory is still 113.2 MB. Free memory was 83.4 MB in the beginning and 81.8 MB in the end (delta: 1.6 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 04:29:05,723 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ce7384e-5634-482a-ab55-c30069f5ac99/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...