./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ee89c2-a3b7-4ad6-a0fc-ee3d5660c11b/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ee89c2-a3b7-4ad6-a0fc-ee3d5660c11b/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ee89c2-a3b7-4ad6-a0fc-ee3d5660c11b/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ee89c2-a3b7-4ad6-a0fc-ee3d5660c11b/bin/ukojak-CwSLpZB5Qu/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ee89c2-a3b7-4ad6-a0fc-ee3d5660c11b/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ee89c2-a3b7-4ad6-a0fc-ee3d5660c11b/bin/ukojak-CwSLpZB5Qu --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 c85095e6c097860f8990ece506beaedeb77748d9abbe74af49965756711c2a8f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:56:30,684 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:56:30,686 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:56:30,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:56:30,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:56:30,726 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:56:30,727 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:56:30,730 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:56:30,732 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:56:30,733 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:56:30,734 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:56:30,736 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:56:30,736 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:56:30,737 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:56:30,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:56:30,741 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:56:30,742 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:56:30,743 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:56:30,745 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:56:30,748 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:56:30,750 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:56:30,755 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:56:30,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:56:30,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:56:30,762 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:56:30,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:56:30,771 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:56:30,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:56:30,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:56:30,775 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:56:30,777 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:56:30,778 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:56:30,782 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:56:30,783 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:56:30,784 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:56:30,785 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:56:30,786 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:56:30,787 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:56:30,787 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:56:30,788 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:56:30,789 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:56:30,790 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ee89c2-a3b7-4ad6-a0fc-ee3d5660c11b/bin/ukojak-CwSLpZB5Qu/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-23 15:56:30,830 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:56:30,830 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:56:30,831 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:56:30,832 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:56:30,832 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:56:30,832 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:56:30,832 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 15:56:30,833 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:56:30,833 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:56:30,833 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:56:30,833 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 15:56:30,834 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 15:56:30,834 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 15:56:30,834 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:56:30,834 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:56:30,834 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:56:30,835 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:56:30,835 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:56:30,835 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:56:30,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:56:30,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:56:30,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:56:30,836 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:56:30,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:56:30,836 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_56ee89c2-a3b7-4ad6-a0fc-ee3d5660c11b/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ee89c2-a3b7-4ad6-a0fc-ee3d5660c11b/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c85095e6c097860f8990ece506beaedeb77748d9abbe74af49965756711c2a8f [2021-11-23 15:56:31,070 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:56:31,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:56:31,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:56:31,099 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:56:31,100 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:56:31,101 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ee89c2-a3b7-4ad6-a0fc-ee3d5660c11b/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-1.i [2021-11-23 15:56:31,196 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ee89c2-a3b7-4ad6-a0fc-ee3d5660c11b/bin/ukojak-CwSLpZB5Qu/data/48b99a1b6/d80ee1a0f39e41f896d2c4fa08eb9eb7/FLAGc0dd9cb27 [2021-11-23 15:56:31,784 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:56:31,785 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ee89c2-a3b7-4ad6-a0fc-ee3d5660c11b/sv-benchmarks/c/ldv-memsafety/memleaks_test3-1.i [2021-11-23 15:56:31,810 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ee89c2-a3b7-4ad6-a0fc-ee3d5660c11b/bin/ukojak-CwSLpZB5Qu/data/48b99a1b6/d80ee1a0f39e41f896d2c4fa08eb9eb7/FLAGc0dd9cb27 [2021-11-23 15:56:32,070 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ee89c2-a3b7-4ad6-a0fc-ee3d5660c11b/bin/ukojak-CwSLpZB5Qu/data/48b99a1b6/d80ee1a0f39e41f896d2c4fa08eb9eb7 [2021-11-23 15:56:32,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:56:32,075 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:56:32,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:56:32,077 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:56:32,080 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:56:32,082 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:56:32" (1/1) ... [2021-11-23 15:56:32,084 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59c373d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:32, skipping insertion in model container [2021-11-23 15:56:32,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:56:32" (1/1) ... [2021-11-23 15:56:32,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:56:32,159 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:56:32,621 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:56:32,637 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:56:32,685 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:56:32,730 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:56:32,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:32 WrapperNode [2021-11-23 15:56:32,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:56:32,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:56:32,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:56:32,733 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:56:32,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:32" (1/1) ... [2021-11-23 15:56:32,773 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:32" (1/1) ... [2021-11-23 15:56:32,796 INFO L137 Inliner]: procedures = 166, calls = 69, calls flagged for inlining = 29, calls inlined = 4, statements flattened = 21 [2021-11-23 15:56:32,796 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:56:32,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:56:32,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:56:32,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:56:32,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:32" (1/1) ... [2021-11-23 15:56:32,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:32" (1/1) ... [2021-11-23 15:56:32,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:32" (1/1) ... [2021-11-23 15:56:32,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:32" (1/1) ... [2021-11-23 15:56:32,814 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:32" (1/1) ... [2021-11-23 15:56:32,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:32" (1/1) ... [2021-11-23 15:56:32,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:32" (1/1) ... [2021-11-23 15:56:32,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:56:32,819 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:56:32,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:56:32,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:56:32,820 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:32" (1/1) ... [2021-11-23 15:56:32,843 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:56:32,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ee89c2-a3b7-4ad6-a0fc-ee3d5660c11b/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:56:32,864 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ee89c2-a3b7-4ad6-a0fc-ee3d5660c11b/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:56:32,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ee89c2-a3b7-4ad6-a0fc-ee3d5660c11b/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:56:32,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:56:32,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:56:32,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 15:56:32,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:56:32,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:56:33,004 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:56:33,006 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:56:33,168 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:56:33,204 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 15:56:33,205 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 15:56:33,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:56:33 BoogieIcfgContainer [2021-11-23 15:56:33,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 15:56:33,208 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 15:56:33,208 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 15:56:33,220 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 15:56:33,220 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:56:33" (1/1) ... [2021-11-23 15:56:33,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 15:56:33,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 15:56:33,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-11-23 15:56:33,292 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-11-23 15:56:33,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 15:56:33,295 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 15:56:33,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 15:56:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 15:56:33,394 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 15:56:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 15:56:33,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 15:56:33,453 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 15:56:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 15:56:33,469 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2021-11-23 15:56:33,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 03:56:33 ImpRootNode [2021-11-23 15:56:33,490 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 15:56:33,491 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 15:56:33,491 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 15:56:33,491 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 15:56:33,492 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:56:33" (3/4) ... [2021-11-23 15:56:33,494 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 15:56:33,525 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ee89c2-a3b7-4ad6-a0fc-ee3d5660c11b/bin/ukojak-CwSLpZB5Qu/witness.graphml [2021-11-23 15:56:33,526 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 15:56:33,527 INFO L158 Benchmark]: Toolchain (without parser) took 1451.69ms. Allocated memory is still 119.5MB. Free memory was 84.9MB in the beginning and 57.1MB in the end (delta: 27.8MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2021-11-23 15:56:33,527 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 75.5MB. Free memory was 50.0MB in the beginning and 50.0MB in the end (delta: 27.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:56:33,528 INFO L158 Benchmark]: CACSL2BoogieTranslator took 654.48ms. Allocated memory is still 119.5MB. Free memory was 84.9MB in the beginning and 83.8MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:56:33,529 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.02ms. Allocated memory is still 119.5MB. Free memory was 83.8MB in the beginning and 81.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:56:33,529 INFO L158 Benchmark]: Boogie Preprocessor took 21.93ms. Allocated memory is still 119.5MB. Free memory was 81.7MB in the beginning and 80.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:56:33,530 INFO L158 Benchmark]: RCFGBuilder took 388.30ms. Allocated memory is still 119.5MB. Free memory was 80.1MB in the beginning and 70.3MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:56:33,531 INFO L158 Benchmark]: CodeCheck took 282.33ms. Allocated memory is still 119.5MB. Free memory was 70.3MB in the beginning and 58.6MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:56:33,531 INFO L158 Benchmark]: Witness Printer took 34.64ms. Allocated memory is still 119.5MB. Free memory was 58.6MB in the beginning and 57.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:56:33,535 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, 12 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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: 763]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L570] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L766] CALL entry_point() [L762] CALL, EXPR h_unsafe() [L759] return (int *)__VERIFIER_nondet_ulong(); [L762] RET, EXPR h_unsafe() [L762] int *p = h_unsafe(); [L763] COND TRUE \read(*p) VAL [ldv_global_msg_list={1:0}, p={0:1}] [L763] free(p) VAL [ldv_global_msg_list={1:0}, p={0:1}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 75.5MB. Free memory was 50.0MB in the beginning and 50.0MB in the end (delta: 27.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 654.48ms. Allocated memory is still 119.5MB. Free memory was 84.9MB in the beginning and 83.8MB in the end (delta: 1.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.02ms. Allocated memory is still 119.5MB. Free memory was 83.8MB in the beginning and 81.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.93ms. Allocated memory is still 119.5MB. Free memory was 81.7MB in the beginning and 80.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 388.30ms. Allocated memory is still 119.5MB. Free memory was 80.1MB in the beginning and 70.3MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 282.33ms. Allocated memory is still 119.5MB. Free memory was 70.3MB in the beginning and 58.6MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 34.64ms. Allocated memory is still 119.5MB. Free memory was 58.6MB in the beginning and 57.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 15:56:33,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56ee89c2-a3b7-4ad6-a0fc-ee3d5660c11b/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, 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-free)