./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-write.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_6700edcc-b075-4c73-840b-62dd9c71bf21/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6700edcc-b075-4c73-840b-62dd9c71bf21/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_6700edcc-b075-4c73-840b-62dd9c71bf21/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6700edcc-b075-4c73-840b-62dd9c71bf21/bin/ukojak-Rh5K9KB4LI/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-write.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6700edcc-b075-4c73-840b-62dd9c71bf21/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_6700edcc-b075-4c73-840b-62dd9c71bf21/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 db4b4fb03b1dcc2b831885b6cb4b7f01d511832c58de7e20715e49b64db06c6b .................................................................................................................................................................................................................................................................... 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 04:09:44,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:09:44,031 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:09:44,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:09:44,093 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:09:44,097 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:09:44,099 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:09:44,103 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:09:44,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:09:44,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:09:44,114 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:09:44,116 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:09:44,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:09:44,120 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:09:44,122 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:09:44,131 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:09:44,132 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:09:44,133 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:09:44,135 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:09:44,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:09:44,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:09:44,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:09:44,145 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:09:44,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:09:44,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:09:44,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:09:44,156 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:09:44,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:09:44,159 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:09:44,160 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:09:44,160 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:09:44,161 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:09:44,163 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:09:44,164 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:09:44,166 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:09:44,167 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:09:44,167 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:09:44,168 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:09:44,168 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:09:44,169 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:09:44,170 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:09:44,170 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6700edcc-b075-4c73-840b-62dd9c71bf21/bin/ukojak-Rh5K9KB4LI/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-10-29 04:09:44,212 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:09:44,213 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:09:44,214 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:09:44,215 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:09:44,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:09:44,215 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:09:44,215 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 04:09:44,216 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:09:44,216 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:09:44,216 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:09:44,217 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 04:09:44,223 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 04:09:44,224 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 04:09:44,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:09:44,224 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:09:44,224 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:09:44,225 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 04:09:44,225 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 04:09:44,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:09:44,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:09:44,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:09:44,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:09:44,226 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 04:09:44,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:09:44,226 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_6700edcc-b075-4c73-840b-62dd9c71bf21/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6700edcc-b075-4c73-840b-62dd9c71bf21/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db4b4fb03b1dcc2b831885b6cb4b7f01d511832c58de7e20715e49b64db06c6b [2021-10-29 04:09:44,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:09:44,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:09:44,559 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:09:44,559 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:09:44,563 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:09:44,564 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6700edcc-b075-4c73-840b-62dd9c71bf21/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-write.c [2021-10-29 04:09:44,654 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6700edcc-b075-4c73-840b-62dd9c71bf21/bin/ukojak-Rh5K9KB4LI/data/1718f59b7/cdfbbc4b508b49f09933afe1f2799092/FLAG1e2c71e88 [2021-10-29 04:09:45,081 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:09:45,082 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6700edcc-b075-4c73-840b-62dd9c71bf21/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-write.c [2021-10-29 04:09:45,093 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6700edcc-b075-4c73-840b-62dd9c71bf21/bin/ukojak-Rh5K9KB4LI/data/1718f59b7/cdfbbc4b508b49f09933afe1f2799092/FLAG1e2c71e88 [2021-10-29 04:09:45,475 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6700edcc-b075-4c73-840b-62dd9c71bf21/bin/ukojak-Rh5K9KB4LI/data/1718f59b7/cdfbbc4b508b49f09933afe1f2799092 [2021-10-29 04:09:45,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:09:45,478 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:09:45,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:09:45,480 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:09:45,483 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:09:45,484 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:09:45" (1/1) ... [2021-10-29 04:09:45,485 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@496624ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:09:45, skipping insertion in model container [2021-10-29 04:09:45,485 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:09:45" (1/1) ... [2021-10-29 04:09:45,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:09:45,505 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:09:45,674 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:09:45,683 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:09:45,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:09:45,729 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:09:45,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:09:45 WrapperNode [2021-10-29 04:09:45,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:09:45,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:09:45,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:09:45,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:09:45,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:09:45" (1/1) ... [2021-10-29 04:09:45,748 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:09:45" (1/1) ... [2021-10-29 04:09:45,782 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:09:45,783 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:09:45,783 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:09:45,783 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:09:45,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:09:45" (1/1) ... [2021-10-29 04:09:45,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:09:45" (1/1) ... [2021-10-29 04:09:45,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:09:45" (1/1) ... [2021-10-29 04:09:45,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:09:45" (1/1) ... [2021-10-29 04:09:45,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:09:45" (1/1) ... [2021-10-29 04:09:45,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:09:45" (1/1) ... [2021-10-29 04:09:45,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:09:45" (1/1) ... [2021-10-29 04:09:45,834 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:09:45,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:09:45,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:09:45,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:09:45,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:09:45" (1/1) ... [2021-10-29 04:09:45,851 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:09:45,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6700edcc-b075-4c73-840b-62dd9c71bf21/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 04:09:45,872 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6700edcc-b075-4c73-840b-62dd9c71bf21/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 04:09:45,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6700edcc-b075-4c73-840b-62dd9c71bf21/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 04:09:45,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 04:09:45,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:09:45,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:09:45,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 04:09:45,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:09:45,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 04:09:46,445 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:09:46,446 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-29 04:09:46,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:09:46 BoogieIcfgContainer [2021-10-29 04:09:46,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:09:46,450 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 04:09:46,450 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 04:09:46,460 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 04:09:46,460 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:09:46" (1/1) ... [2021-10-29 04:09:46,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:09:46,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:09:46,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2021-10-29 04:09:46,505 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2021-10-29 04:09:46,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 04:09:46,508 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:09:46,509 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:09:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:09:46,650 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 04:09:46,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:09:46,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2021-10-29 04:09:46,674 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2021-10-29 04:09:46,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 04:09:46,677 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:09:46,677 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:09:46,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:09:46,750 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 04:09:46,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:09:46,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 27 states and 35 transitions. [2021-10-29 04:09:46,834 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2021-10-29 04:09:46,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 04:09:46,835 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:09:46,835 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:09:46,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:09:46,926 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 04:09:47,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:09:47,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 30 states and 41 transitions. [2021-10-29 04:09:47,237 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2021-10-29 04:09:47,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 04:09:47,238 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:09:47,239 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:09:47,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:09:47,342 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 04:09:47,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:09:47,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 32 states and 46 transitions. [2021-10-29 04:09:47,544 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 46 transitions. [2021-10-29 04:09:47,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 04:09:47,545 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:09:47,545 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:09:47,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:09:47,631 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 04:09:47,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:09:47,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 33 states and 48 transitions. [2021-10-29 04:09:47,846 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2021-10-29 04:09:47,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 04:09:47,846 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:09:47,846 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:09:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:09:47,878 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 04:09:47,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:09:47,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 34 states and 50 transitions. [2021-10-29 04:09:47,900 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 50 transitions. [2021-10-29 04:09:47,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 04:09:47,902 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:09:47,903 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:09:47,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:09:47,941 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:09:47,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:09:47,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:09:47,993 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:09:48,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:09:48,028 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2021-10-29 04:09:48,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 04:09:48 ImpRootNode [2021-10-29 04:09:48,056 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 04:09:48,057 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:09:48,057 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:09:48,057 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:09:48,057 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:09:46" (3/4) ... [2021-10-29 04:09:48,059 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 04:09:48,110 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6700edcc-b075-4c73-840b-62dd9c71bf21/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 04:09:48,111 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:09:48,115 INFO L168 Benchmark]: Toolchain (without parser) took 2632.91 ms. Allocated memory was 90.2 MB in the beginning and 113.2 MB in the end (delta: 23.1 MB). Free memory was 56.7 MB in the beginning and 69.9 MB in the end (delta: -13.2 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:09:48,116 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 90.2 MB. Free memory was 62.3 MB in the beginning and 62.2 MB in the end (delta: 27.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:09:48,122 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.61 ms. Allocated memory is still 90.2 MB. Free memory was 56.5 MB in the beginning and 67.5 MB in the end (delta: -10.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:09:48,123 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.65 ms. Allocated memory is still 90.2 MB. Free memory was 67.5 MB in the beginning and 65.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:09:48,123 INFO L168 Benchmark]: Boogie Preprocessor took 58.76 ms. Allocated memory is still 90.2 MB. Free memory was 65.8 MB in the beginning and 64.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:09:48,124 INFO L168 Benchmark]: RCFGBuilder took 606.52 ms. Allocated memory is still 90.2 MB. Free memory was 64.7 MB in the beginning and 48.2 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-29 04:09:48,125 INFO L168 Benchmark]: CodeCheck took 1606.77 ms. Allocated memory was 90.2 MB in the beginning and 113.2 MB in the end (delta: 23.1 MB). Free memory was 48.2 MB in the beginning and 71.2 MB in the end (delta: -23.0 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. [2021-10-29 04:09:48,127 INFO L168 Benchmark]: Witness Printer took 54.04 ms. Allocated memory is still 113.2 MB. Free memory was 71.2 MB in the beginning and 69.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:09:48,133 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, 24 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 336 SDtfs, 132 SDslu, 80 SDs, 0 SdLazy, 1210 SolverSat, 394 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 237 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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: 23]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L32] int i, b[100]; [L33] i = 0 [L33] COND TRUE i < 100 [L21] int a[n], i; [L22] i = 0 [L22] COND TRUE i < size [L23] EXPR b[i] [L23] a[i] = b[i] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47 ms. Allocated memory is still 90.2 MB. Free memory was 62.3 MB in the beginning and 62.2 MB in the end (delta: 27.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 250.61 ms. Allocated memory is still 90.2 MB. Free memory was 56.5 MB in the beginning and 67.5 MB in the end (delta: -10.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.65 ms. Allocated memory is still 90.2 MB. Free memory was 67.5 MB in the beginning and 65.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.76 ms. Allocated memory is still 90.2 MB. Free memory was 65.8 MB in the beginning and 64.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 606.52 ms. Allocated memory is still 90.2 MB. Free memory was 64.7 MB in the beginning and 48.2 MB in the end (delta: 16.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * CodeCheck took 1606.77 ms. Allocated memory was 90.2 MB in the beginning and 113.2 MB in the end (delta: 23.1 MB). Free memory was 48.2 MB in the beginning and 71.2 MB in the end (delta: -23.0 MB). Peak memory consumption was 2.9 MB. Max. memory is 16.1 GB. * Witness Printer took 54.04 ms. Allocated memory is still 113.2 MB. Free memory was 71.2 MB in the beginning and 69.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-29 04:09:48,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6700edcc-b075-4c73-840b-62dd9c71bf21/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...