./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 aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ceb579b-938e-4950-9560-07141f7482de/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ceb579b-938e-4950-9560-07141f7482de/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ceb579b-938e-4950-9560-07141f7482de/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ceb579b-938e-4950-9560-07141f7482de/bin/ukojak-LBtLqBUTdQ/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ceb579b-938e-4950-9560-07141f7482de/bin/ukojak-LBtLqBUTdQ/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ceb579b-938e-4950-9560-07141f7482de/bin/ukojak-LBtLqBUTdQ --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 0.2.1-dev-aef121e [2021-11-23 01:21:56,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:21:56,947 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:21:56,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:21:56,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:21:56,980 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:21:56,982 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:21:56,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:21:56,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:21:56,991 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:21:56,993 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:21:56,995 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:21:56,996 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:21:57,000 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:21:57,002 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:21:57,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:21:57,008 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:21:57,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:21:57,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:21:57,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:21:57,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:21:57,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:21:57,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:21:57,035 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:21:57,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:21:57,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:21:57,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:21:57,051 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:21:57,051 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:21:57,052 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:21:57,053 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:21:57,054 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:21:57,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:21:57,056 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:21:57,057 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:21:57,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:21:57,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:21:57,058 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:21:57,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:21:57,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:21:57,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:21:57,061 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ceb579b-938e-4950-9560-07141f7482de/bin/ukojak-LBtLqBUTdQ/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-23 01:21:57,084 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:21:57,084 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:21:57,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:21:57,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:21:57,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:21:57,086 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:21:57,086 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 01:21:57,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:21:57,086 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:21:57,087 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:21:57,087 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 01:21:57,087 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 01:21:57,087 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 01:21:57,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:21:57,088 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:21:57,088 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:21:57,088 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:21:57,088 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:21:57,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:21:57,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:21:57,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:21:57,089 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:21:57,089 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:21:57,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:21:57,090 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_5ceb579b-938e-4950-9560-07141f7482de/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ceb579b-938e-4950-9560-07141f7482de/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c85095e6c097860f8990ece506beaedeb77748d9abbe74af49965756711c2a8f [2021-11-23 01:21:57,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:21:57,347 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:21:57,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:21:57,351 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:21:57,352 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:21:57,353 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ceb579b-938e-4950-9560-07141f7482de/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/ldv-memsafety/memleaks_test3-1.i [2021-11-23 01:21:57,436 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ceb579b-938e-4950-9560-07141f7482de/bin/ukojak-LBtLqBUTdQ/data/3b88de59d/6cdf763f40bd421c87e561be84552bee/FLAG96e556a92 [2021-11-23 01:21:57,963 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:21:57,963 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ceb579b-938e-4950-9560-07141f7482de/sv-benchmarks/c/ldv-memsafety/memleaks_test3-1.i [2021-11-23 01:21:57,979 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ceb579b-938e-4950-9560-07141f7482de/bin/ukojak-LBtLqBUTdQ/data/3b88de59d/6cdf763f40bd421c87e561be84552bee/FLAG96e556a92 [2021-11-23 01:21:58,263 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ceb579b-938e-4950-9560-07141f7482de/bin/ukojak-LBtLqBUTdQ/data/3b88de59d/6cdf763f40bd421c87e561be84552bee [2021-11-23 01:21:58,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:21:58,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:21:58,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:21:58,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:21:58,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:21:58,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:21:58" (1/1) ... [2021-11-23 01:21:58,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a0ac08f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:58, skipping insertion in model container [2021-11-23 01:21:58,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:21:58" (1/1) ... [2021-11-23 01:21:58,296 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:21:58,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:21:58,720 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:21:58,738 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:21:58,791 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:21:58,832 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:21:58,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:58 WrapperNode [2021-11-23 01:21:58,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:21:58,834 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:21:58,834 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:21:58,834 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:21:58,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:58" (1/1) ... [2021-11-23 01:21:58,863 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:58" (1/1) ... [2021-11-23 01:21:58,883 INFO L137 Inliner]: procedures = 166, calls = 69, calls flagged for inlining = 29, calls inlined = 4, statements flattened = 21 [2021-11-23 01:21:58,883 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:21:58,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:21:58,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:21:58,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:21:58,893 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:58" (1/1) ... [2021-11-23 01:21:58,894 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:58" (1/1) ... [2021-11-23 01:21:58,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:58" (1/1) ... [2021-11-23 01:21:58,897 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:58" (1/1) ... [2021-11-23 01:21:58,902 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:58" (1/1) ... [2021-11-23 01:21:58,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:58" (1/1) ... [2021-11-23 01:21:58,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:58" (1/1) ... [2021-11-23 01:21:58,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:21:58,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:21:58,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:21:58,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:21:58,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:21:58" (1/1) ... [2021-11-23 01:21:58,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:21:58,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ceb579b-938e-4950-9560-07141f7482de/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:21:58,942 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ceb579b-938e-4950-9560-07141f7482de/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:21:58,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ceb579b-938e-4950-9560-07141f7482de/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:21:58,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:21:58,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 01:21:58,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 01:21:58,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:21:58,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:21:59,121 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:21:59,123 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:21:59,274 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:21:59,291 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:21:59,291 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 01:21:59,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:21:59 BoogieIcfgContainer [2021-11-23 01:21:59,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:21:59,295 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:21:59,295 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:21:59,307 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:21:59,307 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:21:59" (1/1) ... [2021-11-23 01:21:59,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:21:59,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:21:59,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2021-11-23 01:21:59,375 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2021-11-23 01:21:59,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 01:21:59,378 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:21:59,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:21:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:21:59,485 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:21:59,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:21:59,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:21:59,559 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:21:59,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:21:59,584 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2021-11-23 01:21:59,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:21:59 ImpRootNode [2021-11-23 01:21:59,605 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:21:59,606 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:21:59,606 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:21:59,606 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:21:59,607 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:21:59" (3/4) ... [2021-11-23 01:21:59,609 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 01:21:59,640 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ceb579b-938e-4950-9560-07141f7482de/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:21:59,640 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:21:59,642 INFO L158 Benchmark]: Toolchain (without parser) took 1374.41ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 61.9MB in the beginning and 57.6MB in the end (delta: 4.3MB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2021-11-23 01:21:59,642 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 96.5MB. Free memory was 54.0MB in the beginning and 53.9MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:21:59,643 INFO L158 Benchmark]: CACSL2BoogieTranslator took 551.83ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 61.7MB in the beginning and 83.6MB in the end (delta: -21.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 01:21:59,644 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.40ms. Allocated memory is still 119.5MB. Free memory was 83.6MB in the beginning and 81.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:21:59,644 INFO L158 Benchmark]: Boogie Preprocessor took 22.75ms. Allocated memory is still 119.5MB. Free memory was 81.5MB in the beginning and 80.7MB in the end (delta: 821.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:21:59,645 INFO L158 Benchmark]: RCFGBuilder took 386.57ms. Allocated memory is still 119.5MB. Free memory was 80.7MB in the beginning and 70.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 01:21:59,646 INFO L158 Benchmark]: CodeCheck took 310.52ms. Allocated memory is still 119.5MB. Free memory was 70.2MB in the beginning and 59.1MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 01:21:59,646 INFO L158 Benchmark]: Witness Printer took 34.63ms. Allocated memory is still 119.5MB. Free memory was 59.1MB in the beginning and 57.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:21:59,650 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: 0.3s, 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 0.21ms. Allocated memory is still 96.5MB. Free memory was 54.0MB in the beginning and 53.9MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 551.83ms. Allocated memory was 96.5MB in the beginning and 119.5MB in the end (delta: 23.1MB). Free memory was 61.7MB in the beginning and 83.6MB in the end (delta: -21.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.40ms. Allocated memory is still 119.5MB. Free memory was 83.6MB in the beginning and 81.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.75ms. Allocated memory is still 119.5MB. Free memory was 81.5MB in the beginning and 80.7MB in the end (delta: 821.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 386.57ms. Allocated memory is still 119.5MB. Free memory was 80.7MB in the beginning and 70.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 310.52ms. Allocated memory is still 119.5MB. Free memory was 70.2MB in the beginning and 59.1MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 34.63ms. Allocated memory is still 119.5MB. Free memory was 59.1MB in the beginning and 57.6MB 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 01:21:59,702 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ceb579b-938e-4950-9560-07141f7482de/bin/ukojak-LBtLqBUTdQ/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)