./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test8_2_false-valid-free.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4d4f4034-46ef-4899-90bb-13493a131707/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4d4f4034-46ef-4899-90bb-13493a131707/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4d4f4034-46ef-4899-90bb-13493a131707/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4d4f4034-46ef-4899-90bb-13493a131707/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test8_2_false-valid-free.i -s /tmp/vcloud-vcloud-master/worker/working_dir_4d4f4034-46ef-4899-90bb-13493a131707/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4d4f4034-46ef-4899-90bb-13493a131707/bin-2019/ukojak --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 92af3b6badb8feb06eec2591339d42260d19262b ........................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 13:40:57,888 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 13:40:57,889 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 13:40:57,895 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 13:40:57,895 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 13:40:57,896 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 13:40:57,896 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 13:40:57,897 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 13:40:57,898 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 13:40:57,898 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 13:40:57,899 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 13:40:57,899 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 13:40:57,899 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 13:40:57,900 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 13:40:57,900 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 13:40:57,900 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 13:40:57,901 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 13:40:57,902 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 13:40:57,903 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 13:40:57,903 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 13:40:57,904 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 13:40:57,904 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 13:40:57,905 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 13:40:57,906 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 13:40:57,906 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 13:40:57,906 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 13:40:57,907 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 13:40:57,907 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 13:40:57,907 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 13:40:57,908 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 13:40:57,908 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 13:40:57,908 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 13:40:57,908 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 13:40:57,908 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 13:40:57,909 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 13:40:57,909 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 13:40:57,909 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4d4f4034-46ef-4899-90bb-13493a131707/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-12-02 13:40:57,917 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 13:40:57,917 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 13:40:57,917 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 13:40:57,917 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 13:40:57,918 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 13:40:57,918 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 13:40:57,918 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 13:40:57,918 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 13:40:57,918 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 13:40:57,918 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 13:40:57,918 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-02 13:40:57,918 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-02 13:40:57,918 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-02 13:40:57,918 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 13:40:57,918 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 13:40:57,919 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 13:40:57,919 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-02 13:40:57,919 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-02 13:40:57,919 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 13:40:57,919 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 13:40:57,919 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-02 13:40:57,919 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 13:40:57,919 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 13:40:57,919 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-02 13:40:57,919 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 13:40:57,920 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in 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-vcloud-master/worker/working_dir_4d4f4034-46ef-4899-90bb-13493a131707/bin-2019/ukojak 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 -> 92af3b6badb8feb06eec2591339d42260d19262b [2018-12-02 13:40:57,936 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 13:40:57,943 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 13:40:57,945 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 13:40:57,945 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 13:40:57,946 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 13:40:57,946 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4d4f4034-46ef-4899-90bb-13493a131707/bin-2019/ukojak/../../sv-benchmarks/c/ldv-memsafety/memleaks_test8_2_false-valid-free.i [2018-12-02 13:40:57,980 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4d4f4034-46ef-4899-90bb-13493a131707/bin-2019/ukojak/data/20008b8d4/1136a516799741aba53856e7a895fc2f/FLAG0c1121e02 [2018-12-02 13:40:58,324 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 13:40:58,325 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4d4f4034-46ef-4899-90bb-13493a131707/sv-benchmarks/c/ldv-memsafety/memleaks_test8_2_false-valid-free.i [2018-12-02 13:40:58,332 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4d4f4034-46ef-4899-90bb-13493a131707/bin-2019/ukojak/data/20008b8d4/1136a516799741aba53856e7a895fc2f/FLAG0c1121e02 [2018-12-02 13:40:58,725 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4d4f4034-46ef-4899-90bb-13493a131707/bin-2019/ukojak/data/20008b8d4/1136a516799741aba53856e7a895fc2f [2018-12-02 13:40:58,728 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 13:40:58,729 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 13:40:58,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 13:40:58,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 13:40:58,733 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 13:40:58,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:40:58" (1/1) ... [2018-12-02 13:40:58,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b67689e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:58, skipping insertion in model container [2018-12-02 13:40:58,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 01:40:58" (1/1) ... [2018-12-02 13:40:58,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 13:40:58,763 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 13:40:58,972 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 13:40:58,983 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 13:40:59,015 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 13:40:59,047 INFO L195 MainTranslator]: Completed translation [2018-12-02 13:40:59,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:59 WrapperNode [2018-12-02 13:40:59,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 13:40:59,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 13:40:59,048 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 13:40:59,048 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 13:40:59,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:59" (1/1) ... [2018-12-02 13:40:59,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:59" (1/1) ... [2018-12-02 13:40:59,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 13:40:59,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 13:40:59,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 13:40:59,078 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 13:40:59,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:59" (1/1) ... [2018-12-02 13:40:59,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:59" (1/1) ... [2018-12-02 13:40:59,085 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:59" (1/1) ... [2018-12-02 13:40:59,085 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:59" (1/1) ... [2018-12-02 13:40:59,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:59" (1/1) ... [2018-12-02 13:40:59,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:59" (1/1) ... [2018-12-02 13:40:59,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:59" (1/1) ... [2018-12-02 13:40:59,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 13:40:59,092 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 13:40:59,092 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 13:40:59,092 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 13:40:59,093 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 01:40:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4d4f4034-46ef-4899-90bb-13493a131707/bin-2019/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-02 13:40:59,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 13:40:59,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 13:40:59,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-02 13:40:59,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 13:40:59,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 13:40:59,282 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 13:40:59,282 INFO L280 CfgBuilder]: Removed 14 assue(true) statements. [2018-12-02 13:40:59,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:40:59 BoogieIcfgContainer [2018-12-02 13:40:59,283 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 13:40:59,283 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-02 13:40:59,283 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-02 13:40:59,290 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-02 13:40:59,290 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:40:59" (1/1) ... [2018-12-02 13:40:59,297 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 13:40:59,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:40:59,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 15 states and 16 transitions. [2018-12-02 13:40:59,317 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2018-12-02 13:40:59,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-02 13:40:59,319 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:40:59,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:40:59,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:40:59,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:40:59,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2018-12-02 13:40:59,428 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2018-12-02 13:40:59,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-02 13:40:59,428 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:40:59,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:40:59,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:40:59,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:40:59,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2018-12-02 13:40:59,462 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-12-02 13:40:59,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-02 13:40:59,462 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:40:59,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:40:59,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:40:59,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:40:59,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 15 states and 16 transitions. [2018-12-02 13:40:59,556 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2018-12-02 13:40:59,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-02 13:40:59,556 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:40:59,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:40:59,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:40:59,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:40:59,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 16 states and 17 transitions. [2018-12-02 13:40:59,629 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-12-02 13:40:59,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-02 13:40:59,629 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:40:59,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:40:59,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:40:59,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:40:59,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 19 states and 21 transitions. [2018-12-02 13:40:59,781 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-12-02 13:40:59,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-02 13:40:59,784 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:40:59,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 13:40:59,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 13:40:59,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-02 13:40:59,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2018-12-02 13:40:59,832 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-12-02 13:40:59,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-02 13:40:59,832 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-02 13:40:59,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:40:59,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:40:59,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:40:59,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 13:40:59,873 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2018-12-02 13:40:59,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 01:40:59 ImpRootNode [2018-12-02 13:40:59,890 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-02 13:40:59,890 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 13:40:59,890 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 13:40:59,890 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 13:40:59,891 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 01:40:59" (3/4) ... [2018-12-02 13:40:59,892 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 13:40:59,919 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4d4f4034-46ef-4899-90bb-13493a131707/bin-2019/ukojak/witness.graphml [2018-12-02 13:40:59,919 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 13:40:59,920 INFO L168 Benchmark]: Toolchain (without parser) took 1191.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 950.6 MB in the beginning and 939.6 MB in the end (delta: 11.0 MB). Peak memory consumption was 111.1 MB. Max. memory is 11.5 GB. [2018-12-02 13:40:59,921 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 13:40:59,922 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -122.7 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. [2018-12-02 13:40:59,922 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.60 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 13:40:59,923 INFO L168 Benchmark]: Boogie Preprocessor took 13.93 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 13:40:59,923 INFO L168 Benchmark]: RCFGBuilder took 191.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-12-02 13:40:59,923 INFO L168 Benchmark]: CodeCheck took 606.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 942.3 MB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 11.5 GB. [2018-12-02 13:40:59,924 INFO L168 Benchmark]: Witness Printer took 29.13 ms. Allocated memory is still 1.1 GB. Free memory was 942.3 MB in the beginning and 939.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-02 13:40:59,926 INFO L336 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, 19 locations, 5 error locations. UNSAFE Result, 0.5s OverallTime, 7 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 274 SDslu, 72 SDs, 0 SdLazy, 906 SolverSat, 360 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 191 GetRequests, 164 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 1441]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L1135] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; [L1434] int *a8; [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] return malloc(size); [L1437] a8 = (int *)ldv_malloc(sizeof(int)) [L1441] COND TRUE \read(*a8) VAL [a8={5:0}, ldv_global_msg_list={3:0}] [L1441] free(a8) VAL [a8={5:0}, ldv_global_msg_list={3:0}] [L1441] free(a8) [L1441] COND TRUE \read(*a8) VAL [a8={5:0}, ldv_global_msg_list={3:0}] [L1441] free(a8) VAL [a8={5:0}, ldv_global_msg_list={3:0}] [L1441] free(a8) VAL [a8={5:0}, ldv_global_msg_list={3:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 317.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 100.1 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -122.7 MB). Peak memory consumption was 27.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.60 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.93 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 191.02 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 22.5 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * CodeCheck took 606.84 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 942.3 MB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 11.5 GB. * Witness Printer took 29.13 ms. Allocated memory is still 1.1 GB. Free memory was 942.3 MB in the beginning and 939.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...