./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/reverse_array_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd52043-7a30-4ecb-bab2-afd8a60a1adc/bin/ukojak-vF6T2TMglN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd52043-7a30-4ecb-bab2-afd8a60a1adc/bin/ukojak-vF6T2TMglN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd52043-7a30-4ecb-bab2-afd8a60a1adc/bin/ukojak-vF6T2TMglN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd52043-7a30-4ecb-bab2-afd8a60a1adc/bin/ukojak-vF6T2TMglN/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/reverse_array_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd52043-7a30-4ecb-bab2-afd8a60a1adc/bin/ukojak-vF6T2TMglN/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd52043-7a30-4ecb-bab2-afd8a60a1adc/bin/ukojak-vF6T2TMglN --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 bb17be6c5036a92a96f9e04e4f3a4e1575c4abfe5b11b351c9bb22d6c30d006f --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 05:51:55,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 05:51:55,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 05:51:55,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 05:51:55,668 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 05:51:55,673 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 05:51:55,675 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 05:51:55,679 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 05:51:55,682 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 05:51:55,690 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 05:51:55,691 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 05:51:55,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 05:51:55,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 05:51:55,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 05:51:55,700 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 05:51:55,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 05:51:55,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 05:51:55,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 05:51:55,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 05:51:55,714 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 05:51:55,716 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 05:51:55,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 05:51:55,723 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 05:51:55,724 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 05:51:55,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 05:51:55,735 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 05:51:55,735 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 05:51:55,737 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 05:51:55,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 05:51:55,739 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 05:51:55,740 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 05:51:55,741 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 05:51:55,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 05:51:55,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 05:51:55,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 05:51:55,746 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 05:51:55,747 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 05:51:55,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 05:51:55,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 05:51:55,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 05:51:55,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 05:51:55,750 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd52043-7a30-4ecb-bab2-afd8a60a1adc/bin/ukojak-vF6T2TMglN/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-21 05:51:55,787 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 05:51:55,787 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 05:51:55,790 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 05:51:55,791 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 05:51:55,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 05:51:55,791 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 05:51:55,791 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 05:51:55,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 05:51:55,792 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 05:51:55,792 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 05:51:55,793 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-21 05:51:55,793 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-21 05:51:55,794 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-21 05:51:55,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 05:51:55,794 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 05:51:55,794 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 05:51:55,794 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-21 05:51:55,795 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-21 05:51:55,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 05:51:55,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 05:51:55,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 05:51:55,796 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 05:51:55,796 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-21 05:51:55,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 05:51:55,796 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_edd52043-7a30-4ecb-bab2-afd8a60a1adc/bin/ukojak-vF6T2TMglN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd52043-7a30-4ecb-bab2-afd8a60a1adc/bin/ukojak-vF6T2TMglN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb17be6c5036a92a96f9e04e4f3a4e1575c4abfe5b11b351c9bb22d6c30d006f [2021-11-21 05:51:56,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 05:51:56,128 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 05:51:56,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 05:51:56,132 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 05:51:56,132 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 05:51:56,134 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd52043-7a30-4ecb-bab2-afd8a60a1adc/bin/ukojak-vF6T2TMglN/../../sv-benchmarks/c/array-memsafety/reverse_array_unsafe.i [2021-11-21 05:51:56,225 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd52043-7a30-4ecb-bab2-afd8a60a1adc/bin/ukojak-vF6T2TMglN/data/5cdbc2ae3/fb627c0fb91b4662af7e7927266acad1/FLAGa1d110a9d [2021-11-21 05:51:56,757 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 05:51:56,762 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd52043-7a30-4ecb-bab2-afd8a60a1adc/sv-benchmarks/c/array-memsafety/reverse_array_unsafe.i [2021-11-21 05:51:56,782 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd52043-7a30-4ecb-bab2-afd8a60a1adc/bin/ukojak-vF6T2TMglN/data/5cdbc2ae3/fb627c0fb91b4662af7e7927266acad1/FLAGa1d110a9d [2021-11-21 05:51:57,093 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd52043-7a30-4ecb-bab2-afd8a60a1adc/bin/ukojak-vF6T2TMglN/data/5cdbc2ae3/fb627c0fb91b4662af7e7927266acad1 [2021-11-21 05:51:57,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 05:51:57,097 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 05:51:57,099 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 05:51:57,099 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 05:51:57,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 05:51:57,103 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:51:57" (1/1) ... [2021-11-21 05:51:57,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49676551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:51:57, skipping insertion in model container [2021-11-21 05:51:57,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:51:57" (1/1) ... [2021-11-21 05:51:57,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 05:51:57,146 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 05:51:57,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 05:51:57,458 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 05:51:57,512 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 05:51:57,547 INFO L208 MainTranslator]: Completed translation [2021-11-21 05:51:57,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:51:57 WrapperNode [2021-11-21 05:51:57,547 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 05:51:57,549 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 05:51:57,549 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 05:51:57,549 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 05:51:57,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:51:57" (1/1) ... [2021-11-21 05:51:57,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:51:57" (1/1) ... [2021-11-21 05:51:57,601 INFO L137 Inliner]: procedures = 116, calls = 16, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 84 [2021-11-21 05:51:57,602 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 05:51:57,603 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 05:51:57,603 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 05:51:57,603 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 05:51:57,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:51:57" (1/1) ... [2021-11-21 05:51:57,613 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:51:57" (1/1) ... [2021-11-21 05:51:57,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:51:57" (1/1) ... [2021-11-21 05:51:57,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:51:57" (1/1) ... [2021-11-21 05:51:57,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:51:57" (1/1) ... [2021-11-21 05:51:57,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:51:57" (1/1) ... [2021-11-21 05:51:57,644 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:51:57" (1/1) ... [2021-11-21 05:51:57,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 05:51:57,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 05:51:57,648 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 05:51:57,648 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 05:51:57,649 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:51:57" (1/1) ... [2021-11-21 05:51:57,656 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 05:51:57,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd52043-7a30-4ecb-bab2-afd8a60a1adc/bin/ukojak-vF6T2TMglN/z3 [2021-11-21 05:51:57,681 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd52043-7a30-4ecb-bab2-afd8a60a1adc/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-21 05:51:57,685 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd52043-7a30-4ecb-bab2-afd8a60a1adc/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-21 05:51:57,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 05:51:57,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 05:51:57,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 05:51:57,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 05:51:57,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 05:51:57,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 05:51:57,800 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 05:51:57,801 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 05:51:58,067 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 05:51:58,138 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 05:51:58,138 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-21 05:51:58,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:51:58 BoogieIcfgContainer [2021-11-21 05:51:58,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 05:51:58,141 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-21 05:51:58,142 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-21 05:51:58,153 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-21 05:51:58,153 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:51:58" (1/1) ... [2021-11-21 05:51:58,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 05:51:58,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:51:58,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 44 states and 49 transitions. [2021-11-21 05:51:58,252 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 49 transitions. [2021-11-21 05:51:58,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-21 05:51:58,254 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:51:58,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:51:58,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:51:58,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:51:58,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:51:58,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 43 states and 48 transitions. [2021-11-21 05:51:58,525 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2021-11-21 05:51:58,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-21 05:51:58,526 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:51:58,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:51:58,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 05:51:58,577 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 05:51:58,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 05:51:58,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 05:51:58,673 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 05:51:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 05:51:58,707 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2021-11-21 05:51:58,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 05:51:58 ImpRootNode [2021-11-21 05:51:58,738 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-21 05:51:58,738 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 05:51:58,739 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 05:51:58,739 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 05:51:58,739 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:51:58" (3/4) ... [2021-11-21 05:51:58,741 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-21 05:51:58,778 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd52043-7a30-4ecb-bab2-afd8a60a1adc/bin/ukojak-vF6T2TMglN/witness.graphml [2021-11-21 05:51:58,778 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 05:51:58,779 INFO L158 Benchmark]: Toolchain (without parser) took 1681.67ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 69.4MB in the beginning and 81.6MB in the end (delta: -12.2MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2021-11-21 05:51:58,780 INFO L158 Benchmark]: CDTParser took 0.60ms. Allocated memory is still 100.7MB. Free memory is still 57.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 05:51:58,781 INFO L158 Benchmark]: CACSL2BoogieTranslator took 449.07ms. Allocated memory is still 100.7MB. Free memory was 69.1MB in the beginning and 68.5MB in the end (delta: 540.6kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-21 05:51:58,781 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.25ms. Allocated memory is still 100.7MB. Free memory was 68.5MB in the beginning and 66.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 05:51:58,782 INFO L158 Benchmark]: Boogie Preprocessor took 44.00ms. Allocated memory is still 100.7MB. Free memory was 66.5MB in the beginning and 65.5MB in the end (delta: 979.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 05:51:58,783 INFO L158 Benchmark]: RCFGBuilder took 493.28ms. Allocated memory is still 100.7MB. Free memory was 65.1MB in the beginning and 48.9MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-21 05:51:58,783 INFO L158 Benchmark]: CodeCheck took 596.23ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 48.9MB in the beginning and 83.1MB in the end (delta: -34.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 05:51:58,784 INFO L158 Benchmark]: Witness Printer took 39.99ms. Allocated memory is still 121.6MB. Free memory was 83.1MB in the beginning and 81.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 05:51:58,788 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, 44 locations, 23 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 2 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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: 522]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L515] int i, j, tmp; [L516] int length = __VERIFIER_nondet_int(); [L517] COND TRUE length < 1 [L517] length = 1 [L518] COND FALSE !(length % 2 == 0) [L519] int *arr = __builtin_alloca (length); [L520] int i = 0; VAL [__builtin_alloca (length)={2:0}, arr={2:0}, i=0, length=1, length++=6] [L520] COND TRUE i < length [L522] arr[i] = __VERIFIER_nondet_int() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60ms. Allocated memory is still 100.7MB. Free memory is still 57.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 449.07ms. Allocated memory is still 100.7MB. Free memory was 69.1MB in the beginning and 68.5MB in the end (delta: 540.6kB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.25ms. Allocated memory is still 100.7MB. Free memory was 68.5MB in the beginning and 66.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.00ms. Allocated memory is still 100.7MB. Free memory was 66.5MB in the beginning and 65.5MB in the end (delta: 979.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 493.28ms. Allocated memory is still 100.7MB. Free memory was 65.1MB in the beginning and 48.9MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 596.23ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 48.9MB in the beginning and 83.1MB in the end (delta: -34.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 39.99ms. Allocated memory is still 121.6MB. Free memory was 83.1MB in the beginning and 81.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-21 05:51:58,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_edd52043-7a30-4ecb-bab2-afd8a60a1adc/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)