./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/ldv-memsafety/memleaks_test1_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_23f4056f-9986-4d05-8bd1-4c132333ed3d/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_23f4056f-9986-4d05-8bd1-4c132333ed3d/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_23f4056f-9986-4d05-8bd1-4c132333ed3d/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_23f4056f-9986-4d05-8bd1-4c132333ed3d/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/ldv-memsafety/memleaks_test1_false-valid-free.i -s /tmp/vcloud-vcloud-master/worker/working_dir_23f4056f-9986-4d05-8bd1-4c132333ed3d/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_23f4056f-9986-4d05-8bd1-4c132333ed3d/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 4e92bc8d993eeff0c28e598e1bbb64c9f1f38fdc .................................................................................................................................................................................................................................... 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 [2018-12-09 17:47:45,582 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 17:47:45,583 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 17:47:45,589 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 17:47:45,590 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 17:47:45,590 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 17:47:45,591 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 17:47:45,592 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 17:47:45,592 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 17:47:45,593 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 17:47:45,593 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 17:47:45,593 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 17:47:45,594 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 17:47:45,594 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 17:47:45,595 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 17:47:45,595 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 17:47:45,596 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 17:47:45,597 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 17:47:45,597 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 17:47:45,598 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 17:47:45,599 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 17:47:45,599 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 17:47:45,600 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 17:47:45,600 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 17:47:45,600 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 17:47:45,601 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 17:47:45,601 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 17:47:45,602 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 17:47:45,602 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 17:47:45,603 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 17:47:45,603 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 17:47:45,603 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 17:47:45,603 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 17:47:45,603 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 17:47:45,604 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 17:47:45,604 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 17:47:45,604 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_23f4056f-9986-4d05-8bd1-4c132333ed3d/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-12-09 17:47:45,611 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 17:47:45,611 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 17:47:45,612 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 17:47:45,612 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 17:47:45,612 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 17:47:45,612 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 17:47:45,612 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 17:47:45,612 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 17:47:45,612 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 17:47:45,613 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 17:47:45,613 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-09 17:47:45,613 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-09 17:47:45,613 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-09 17:47:45,613 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 17:47:45,613 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 17:47:45,613 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 17:47:45,613 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-09 17:47:45,613 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-09 17:47:45,613 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 17:47:45,613 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 17:47:45,613 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 17:47:45,613 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 17:47:45,614 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 17:47:45,614 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-09 17:47:45,614 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 17:47:45,614 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_23f4056f-9986-4d05-8bd1-4c132333ed3d/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 -> 4e92bc8d993eeff0c28e598e1bbb64c9f1f38fdc [2018-12-09 17:47:45,630 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 17:47:45,637 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 17:47:45,639 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 17:47:45,640 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 17:47:45,640 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 17:47:45,641 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_23f4056f-9986-4d05-8bd1-4c132333ed3d/bin-2019/ukojak/../../sv-benchmarks/c/ldv-memsafety/memleaks_test1_false-valid-free.i [2018-12-09 17:47:45,676 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_23f4056f-9986-4d05-8bd1-4c132333ed3d/bin-2019/ukojak/data/bc0e3fa52/3f5f89385527434cadbd3efc33580c30/FLAG4a5c9077b [2018-12-09 17:47:46,131 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 17:47:46,131 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_23f4056f-9986-4d05-8bd1-4c132333ed3d/sv-benchmarks/c/ldv-memsafety/memleaks_test1_false-valid-free.i [2018-12-09 17:47:46,138 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_23f4056f-9986-4d05-8bd1-4c132333ed3d/bin-2019/ukojak/data/bc0e3fa52/3f5f89385527434cadbd3efc33580c30/FLAG4a5c9077b [2018-12-09 17:47:46,146 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_23f4056f-9986-4d05-8bd1-4c132333ed3d/bin-2019/ukojak/data/bc0e3fa52/3f5f89385527434cadbd3efc33580c30 [2018-12-09 17:47:46,148 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 17:47:46,149 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 17:47:46,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 17:47:46,150 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 17:47:46,151 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 17:47:46,152 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:47:46" (1/1) ... [2018-12-09 17:47:46,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f5fc0d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:47:46, skipping insertion in model container [2018-12-09 17:47:46,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 05:47:46" (1/1) ... [2018-12-09 17:47:46,158 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 17:47:46,179 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 17:47:46,388 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 17:47:46,399 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 17:47:46,434 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 17:47:46,476 INFO L195 MainTranslator]: Completed translation [2018-12-09 17:47:46,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:47:46 WrapperNode [2018-12-09 17:47:46,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 17:47:46,477 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 17:47:46,477 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 17:47:46,477 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 17:47:46,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:47:46" (1/1) ... [2018-12-09 17:47:46,493 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:47:46" (1/1) ... [2018-12-09 17:47:46,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 17:47:46,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 17:47:46,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 17:47:46,505 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 17:47:46,510 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:47:46" (1/1) ... [2018-12-09 17:47:46,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:47:46" (1/1) ... [2018-12-09 17:47:46,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:47:46" (1/1) ... [2018-12-09 17:47:46,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:47:46" (1/1) ... [2018-12-09 17:47:46,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:47:46" (1/1) ... [2018-12-09 17:47:46,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:47:46" (1/1) ... [2018-12-09 17:47:46,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:47:46" (1/1) ... [2018-12-09 17:47:46,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 17:47:46,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 17:47:46,518 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 17:47:46,518 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 17:47:46,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 05:47:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23f4056f-9986-4d05-8bd1-4c132333ed3d/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 [2018-12-09 17:47:46,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 17:47:46,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 17:47:46,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2018-12-09 17:47:46,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 17:47:46,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 17:47:46,697 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 17:47:46,697 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-09 17:47:46,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:47:46 BoogieIcfgContainer [2018-12-09 17:47:46,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 17:47:46,698 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-09 17:47:46,698 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-09 17:47:46,707 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-09 17:47:46,707 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:47:46" (1/1) ... [2018-12-09 17:47:46,716 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 17:47:46,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:47:46,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 12 states and 11 transitions. [2018-12-09 17:47:46,739 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2018-12-09 17:47:46,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-09 17:47:46,741 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:47:46,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:47:46,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 17:47:46,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:47:46,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 11 states and 10 transitions. [2018-12-09 17:47:46,861 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2018-12-09 17:47:46,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-09 17:47:46,862 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:47:46,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:47:46,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 17:47:46,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:47:46,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 10 states and 9 transitions. [2018-12-09 17:47:46,967 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2018-12-09 17:47:46,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-09 17:47:46,967 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:47:46,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 17:47:46,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 17:47:47,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 17:47:47,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 9 states and 8 transitions. [2018-12-09 17:47:47,004 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2018-12-09 17:47:47,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-09 17:47:47,004 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 17:47:47,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 17:47:47,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 17:47:47,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 17:47:47,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 17:47:47,047 WARN L497 CodeCheckObserver]: This program is UNSAFE, Check terminated with 4 iterations. [2018-12-09 17:47:47,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.12 05:47:47 ImpRootNode [2018-12-09 17:47:47,062 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-09 17:47:47,062 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 17:47:47,062 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 17:47:47,062 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 17:47:47,062 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 05:47:46" (3/4) ... [2018-12-09 17:47:47,064 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 17:47:47,087 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_23f4056f-9986-4d05-8bd1-4c132333ed3d/bin-2019/ukojak/witness.graphml [2018-12-09 17:47:47,088 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 17:47:47,088 INFO L168 Benchmark]: Toolchain (without parser) took 939.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 957.1 MB in the beginning and 1.0 GB in the end (delta: -67.0 MB). Peak memory consumption was 59.3 MB. Max. memory is 11.5 GB. [2018-12-09 17:47:47,089 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 17:47:47,089 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -139.0 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. [2018-12-09 17:47:47,089 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.69 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 17:47:47,090 INFO L168 Benchmark]: Boogie Preprocessor took 13.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 17:47:47,090 INFO L168 Benchmark]: RCFGBuilder took 179.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-12-09 17:47:47,090 INFO L168 Benchmark]: CodeCheck took 363.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 38.2 MB). Peak memory consumption was 38.2 MB. Max. memory is 11.5 GB. [2018-12-09 17:47:47,090 INFO L168 Benchmark]: Witness Printer took 25.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-09 17:47:47,092 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, 16 locations, 5 error locations. UNSAFE Result, 0.3s OverallTime, 4 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 0 SDtfs, 10 SDslu, 0 SDs, 0 SdLazy, 54 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 60 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s 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: 1437]: 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) }; [L1073] COND TRUE __VERIFIER_nondet_int() [L1074] return malloc(size); [L1435] int *p = (int *)ldv_malloc(sizeof(int)); [L1436] free(p) VAL [ldv_global_msg_list={5:0}] [L1436] free(p) [L1437] free(p) VAL [ldv_global_msg_list={5:0}] [L1437] free(p) VAL [ldv_global_msg_list={5:0}] * 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 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 327.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.4 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -139.0 MB). Peak memory consumption was 30.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.69 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 179.89 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * CodeCheck took 363.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 38.2 MB). Peak memory consumption was 38.2 MB. Max. memory is 11.5 GB. * Witness Printer took 25.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...