./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.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_8b816af7-76c7-41a0-8561-3b97505042ce/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b816af7-76c7-41a0-8561-3b97505042ce/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_8b816af7-76c7-41a0-8561-3b97505042ce/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b816af7-76c7-41a0-8561-3b97505042ce/bin/ukojak-Rh5K9KB4LI/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b816af7-76c7-41a0-8561-3b97505042ce/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_8b816af7-76c7-41a0-8561-3b97505042ce/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 07a396ef153f1ca8e856eefcfa25d3d77eb73f779a009e48698bf5ce12969740 .............................................................................................................................................................................................................................................. 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 03:47:37,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 03:47:37,582 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 03:47:37,634 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 03:47:37,635 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 03:47:37,639 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 03:47:37,641 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 03:47:37,646 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 03:47:37,649 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 03:47:37,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 03:47:37,659 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 03:47:37,661 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 03:47:37,661 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 03:47:37,666 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 03:47:37,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 03:47:37,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 03:47:37,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 03:47:37,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 03:47:37,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 03:47:37,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 03:47:37,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 03:47:37,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 03:47:37,696 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 03:47:37,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 03:47:37,712 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 03:47:37,713 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 03:47:37,713 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 03:47:37,714 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 03:47:37,715 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 03:47:37,716 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 03:47:37,716 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 03:47:37,717 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 03:47:37,718 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 03:47:37,719 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 03:47:37,724 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 03:47:37,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 03:47:37,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 03:47:37,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 03:47:37,727 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 03:47:37,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 03:47:37,728 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 03:47:37,729 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b816af7-76c7-41a0-8561-3b97505042ce/bin/ukojak-Rh5K9KB4LI/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-10-29 03:47:37,780 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 03:47:37,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 03:47:37,783 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 03:47:37,783 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 03:47:37,783 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 03:47:37,784 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 03:47:37,784 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 03:47:37,784 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 03:47:37,784 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 03:47:37,785 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 03:47:37,786 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 03:47:37,792 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 03:47:37,792 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 03:47:37,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 03:47:37,793 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 03:47:37,793 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 03:47:37,793 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 03:47:37,793 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 03:47:37,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 03:47:37,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:47:37,794 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 03:47:37,794 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 03:47:37,795 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 03:47:37,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 03:47:37,795 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_8b816af7-76c7-41a0-8561-3b97505042ce/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b816af7-76c7-41a0-8561-3b97505042ce/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 07a396ef153f1ca8e856eefcfa25d3d77eb73f779a009e48698bf5ce12969740 [2021-10-29 03:47:38,058 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 03:47:38,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 03:47:38,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 03:47:38,086 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 03:47:38,087 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 03:47:38,088 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b816af7-76c7-41a0-8561-3b97505042ce/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c [2021-10-29 03:47:38,181 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b816af7-76c7-41a0-8561-3b97505042ce/bin/ukojak-Rh5K9KB4LI/data/3bc777fa8/71353c8e9110493487e4e5088ab9cd26/FLAG2416af23f [2021-10-29 03:47:38,669 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 03:47:38,670 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b816af7-76c7-41a0-8561-3b97505042ce/sv-benchmarks/c/ldv-memsafety/ArraysOfVariableLength2_-read.c [2021-10-29 03:47:38,676 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b816af7-76c7-41a0-8561-3b97505042ce/bin/ukojak-Rh5K9KB4LI/data/3bc777fa8/71353c8e9110493487e4e5088ab9cd26/FLAG2416af23f [2021-10-29 03:47:39,026 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b816af7-76c7-41a0-8561-3b97505042ce/bin/ukojak-Rh5K9KB4LI/data/3bc777fa8/71353c8e9110493487e4e5088ab9cd26 [2021-10-29 03:47:39,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 03:47:39,031 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 03:47:39,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 03:47:39,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 03:47:39,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 03:47:39,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:47:39" (1/1) ... [2021-10-29 03:47:39,047 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@311da11b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:47:39, skipping insertion in model container [2021-10-29 03:47:39,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:47:39" (1/1) ... [2021-10-29 03:47:39,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 03:47:39,079 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 03:47:39,269 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:47:39,276 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 03:47:39,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:47:39,309 INFO L208 MainTranslator]: Completed translation [2021-10-29 03:47:39,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:47:39 WrapperNode [2021-10-29 03:47:39,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 03:47:39,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 03:47:39,311 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 03:47:39,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 03:47:39,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:47:39" (1/1) ... [2021-10-29 03:47:39,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:47:39" (1/1) ... [2021-10-29 03:47:39,349 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 03:47:39,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 03:47:39,350 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 03:47:39,351 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 03:47:39,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:47:39" (1/1) ... [2021-10-29 03:47:39,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:47:39" (1/1) ... [2021-10-29 03:47:39,362 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:47:39" (1/1) ... [2021-10-29 03:47:39,362 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:47:39" (1/1) ... [2021-10-29 03:47:39,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:47:39" (1/1) ... [2021-10-29 03:47:39,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:47:39" (1/1) ... [2021-10-29 03:47:39,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:47:39" (1/1) ... [2021-10-29 03:47:39,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 03:47:39,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 03:47:39,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 03:47:39,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 03:47:39,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:47:39" (1/1) ... [2021-10-29 03:47:39,393 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:47:39,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b816af7-76c7-41a0-8561-3b97505042ce/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 03:47:39,426 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b816af7-76c7-41a0-8561-3b97505042ce/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 03:47:39,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b816af7-76c7-41a0-8561-3b97505042ce/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 03:47:39,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 03:47:39,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 03:47:39,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 03:47:39,480 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 03:47:39,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 03:47:39,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 03:47:39,991 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 03:47:39,992 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-29 03:47:39,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:47:39 BoogieIcfgContainer [2021-10-29 03:47:39,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 03:47:39,996 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 03:47:39,996 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 03:47:40,009 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 03:47:40,009 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:47:39" (1/1) ... [2021-10-29 03:47:40,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 03:47:40,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:47:40,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2021-10-29 03:47:40,082 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2021-10-29 03:47:40,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 03:47:40,085 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:47:40,086 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:47:40,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:47:40,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:47:40,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:47:40,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 25 states and 30 transitions. [2021-10-29 03:47:40,315 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2021-10-29 03:47:40,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 03:47:40,320 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:47:40,321 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:47:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:47:40,394 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:47:40,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:47:40,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 26 states and 32 transitions. [2021-10-29 03:47:40,435 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2021-10-29 03:47:40,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 03:47:40,436 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:47:40,438 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:47:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:47:40,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:47:40,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:47:40,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 28 states and 36 transitions. [2021-10-29 03:47:40,603 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2021-10-29 03:47:40,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 03:47:40,603 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:47:40,603 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:47:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:47:40,620 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:47:40,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:47:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:47:40,687 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:47:40,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:47:40,729 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2021-10-29 03:47:40,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 03:47:40 ImpRootNode [2021-10-29 03:47:40,760 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 03:47:40,760 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 03:47:40,761 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 03:47:40,761 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 03:47:40,762 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:47:39" (3/4) ... [2021-10-29 03:47:40,765 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 03:47:40,825 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b816af7-76c7-41a0-8561-3b97505042ce/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 03:47:40,826 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 03:47:40,832 INFO L168 Benchmark]: Toolchain (without parser) took 1796.10 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 50.1 MB in the beginning and 53.9 MB in the end (delta: -3.9 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:47:40,833 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory was 63.3 MB in the beginning and 63.3 MB in the end (delta: 29.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:47:40,835 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.31 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 49.8 MB in the beginning and 77.2 MB in the end (delta: -27.3 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2021-10-29 03:47:40,836 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.20 ms. Allocated memory is still 100.7 MB. Free memory was 77.2 MB in the beginning and 75.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:47:40,837 INFO L168 Benchmark]: Boogie Preprocessor took 31.87 ms. Allocated memory is still 100.7 MB. Free memory was 75.5 MB in the beginning and 74.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:47:40,838 INFO L168 Benchmark]: RCFGBuilder took 612.13 ms. Allocated memory is still 100.7 MB. Free memory was 74.2 MB in the beginning and 58.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-29 03:47:40,841 INFO L168 Benchmark]: CodeCheck took 763.70 ms. Allocated memory is still 100.7 MB. Free memory was 58.1 MB in the beginning and 55.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 03:47:40,842 INFO L168 Benchmark]: Witness Printer took 65.69 ms. Allocated memory is still 100.7 MB. Free memory was 55.5 MB in the beginning and 53.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:47:40,848 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: 0.6s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 40 SDtfs, 6 SDslu, 4 SDs, 0 SdLazy, 82 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 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, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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: 14]: 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 FALSE !(i < size) [L12] int res = 0, i; [L13] i = 0 [L13] COND TRUE i < size [L14] b[i] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory was 63.3 MB in the beginning and 63.3 MB in the end (delta: 29.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 268.31 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 49.8 MB in the beginning and 77.2 MB in the end (delta: -27.3 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.20 ms. Allocated memory is still 100.7 MB. Free memory was 77.2 MB in the beginning and 75.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.87 ms. Allocated memory is still 100.7 MB. Free memory was 75.5 MB in the beginning and 74.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 612.13 ms. Allocated memory is still 100.7 MB. Free memory was 74.2 MB in the beginning and 58.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * CodeCheck took 763.70 ms. Allocated memory is still 100.7 MB. Free memory was 58.1 MB in the beginning and 55.5 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Witness Printer took 65.69 ms. Allocated memory is still 100.7 MB. Free memory was 55.5 MB in the beginning and 53.9 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 03:47:40,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b816af7-76c7-41a0-8561-3b97505042ce/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...