./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety/test-0158_true-valid-memsafety_true-termination.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_e3bf8b68-1178-46f1-bf3b-b8661fa58aa1/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e3bf8b68-1178-46f1-bf3b-b8661fa58aa1/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e3bf8b68-1178-46f1-bf3b-b8661fa58aa1/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e3bf8b68-1178-46f1-bf3b-b8661fa58aa1/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety/test-0158_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e3bf8b68-1178-46f1-bf3b-b8661fa58aa1/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e3bf8b68-1178-46f1-bf3b-b8661fa58aa1/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 a7cfd7481ea91a8e19e08969c84b730ff13700e8 .......................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 10:57:45,830 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 10:57:45,831 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 10:57:45,839 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 10:57:45,839 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 10:57:45,840 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 10:57:45,841 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 10:57:45,842 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 10:57:45,843 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 10:57:45,844 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 10:57:45,844 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 10:57:45,844 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 10:57:45,845 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 10:57:45,846 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 10:57:45,846 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 10:57:45,847 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 10:57:45,848 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 10:57:45,849 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 10:57:45,850 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 10:57:45,851 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 10:57:45,852 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 10:57:45,853 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 10:57:45,854 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 10:57:45,855 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 10:57:45,855 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 10:57:45,855 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 10:57:45,856 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 10:57:45,857 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 10:57:45,857 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 10:57:45,858 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 10:57:45,858 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 10:57:45,859 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 10:57:45,859 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 10:57:45,859 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 10:57:45,859 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 10:57:45,860 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 10:57:45,860 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e3bf8b68-1178-46f1-bf3b-b8661fa58aa1/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-12-09 10:57:45,870 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 10:57:45,870 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 10:57:45,871 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 10:57:45,871 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 10:57:45,871 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 10:57:45,871 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 10:57:45,871 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 10:57:45,871 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 10:57:45,871 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 10:57:45,872 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 10:57:45,872 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-09 10:57:45,872 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-09 10:57:45,872 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-09 10:57:45,872 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 10:57:45,872 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 10:57:45,872 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 10:57:45,872 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-09 10:57:45,872 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-09 10:57:45,872 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 10:57:45,873 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 10:57:45,873 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 10:57:45,873 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 10:57:45,873 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 10:57:45,873 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-09 10:57:45,873 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 10:57:45,873 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_e3bf8b68-1178-46f1-bf3b-b8661fa58aa1/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 -> a7cfd7481ea91a8e19e08969c84b730ff13700e8 [2018-12-09 10:57:45,895 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 10:57:45,904 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 10:57:45,906 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 10:57:45,907 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 10:57:45,908 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 10:57:45,908 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e3bf8b68-1178-46f1-bf3b-b8661fa58aa1/bin-2019/ukojak/../../sv-benchmarks/c/memsafety/test-0158_true-valid-memsafety_true-termination.i [2018-12-09 10:57:45,949 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e3bf8b68-1178-46f1-bf3b-b8661fa58aa1/bin-2019/ukojak/data/f7f83799c/42e15dce3b6a43a788ad47d22f2ede59/FLAGa48128543 [2018-12-09 10:57:46,389 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 10:57:46,390 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e3bf8b68-1178-46f1-bf3b-b8661fa58aa1/sv-benchmarks/c/memsafety/test-0158_true-valid-memsafety_true-termination.i [2018-12-09 10:57:46,395 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e3bf8b68-1178-46f1-bf3b-b8661fa58aa1/bin-2019/ukojak/data/f7f83799c/42e15dce3b6a43a788ad47d22f2ede59/FLAGa48128543 [2018-12-09 10:57:46,403 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e3bf8b68-1178-46f1-bf3b-b8661fa58aa1/bin-2019/ukojak/data/f7f83799c/42e15dce3b6a43a788ad47d22f2ede59 [2018-12-09 10:57:46,405 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 10:57:46,406 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 10:57:46,406 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 10:57:46,406 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 10:57:46,408 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 10:57:46,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:57:46" (1/1) ... [2018-12-09 10:57:46,410 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3354cf3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:46, skipping insertion in model container [2018-12-09 10:57:46,410 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:57:46" (1/1) ... [2018-12-09 10:57:46,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 10:57:46,431 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 10:57:46,561 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:57:46,564 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 10:57:46,621 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 10:57:46,642 INFO L195 MainTranslator]: Completed translation [2018-12-09 10:57:46,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:46 WrapperNode [2018-12-09 10:57:46,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 10:57:46,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 10:57:46,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 10:57:46,643 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 10:57:46,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:46" (1/1) ... [2018-12-09 10:57:46,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:46" (1/1) ... [2018-12-09 10:57:46,667 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 10:57:46,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 10:57:46,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 10:57:46,667 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 10:57:46,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:46" (1/1) ... [2018-12-09 10:57:46,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:46" (1/1) ... [2018-12-09 10:57:46,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:46" (1/1) ... [2018-12-09 10:57:46,674 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:46" (1/1) ... [2018-12-09 10:57:46,677 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:46" (1/1) ... [2018-12-09 10:57:46,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:46" (1/1) ... [2018-12-09 10:57:46,679 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:46" (1/1) ... [2018-12-09 10:57:46,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 10:57:46,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 10:57:46,680 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 10:57:46,680 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 10:57:46,681 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:57:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e3bf8b68-1178-46f1-bf3b-b8661fa58aa1/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 10:57:46,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 10:57:46,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-09 10:57:46,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-09 10:57:46,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 10:57:46,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 10:57:46,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 10:57:46,836 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 10:57:46,837 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-09 10:57:46,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:57:46 BoogieIcfgContainer [2018-12-09 10:57:46,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 10:57:46,837 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-09 10:57:46,837 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-09 10:57:46,845 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-09 10:57:46,845 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:57:46" (1/1) ... [2018-12-09 10:57:46,855 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 10:57:46,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:57:46,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 17 states and 16 transitions. [2018-12-09 10:57:46,876 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 16 transitions. [2018-12-09 10:57:46,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-09 10:57:46,878 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:57:46,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:57:46,973 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 10:57:46,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:57:46,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 16 states and 15 transitions. [2018-12-09 10:57:46,997 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2018-12-09 10:57:46,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-09 10:57:46,997 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:57:47,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:57:47,024 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 10:57:47,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:57:47,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 15 states and 14 transitions. [2018-12-09 10:57:47,077 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2018-12-09 10:57:47,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-09 10:57:47,077 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:57:47,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:57:47,088 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 10:57:47,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:57:47,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 14 states and 13 transitions. [2018-12-09 10:57:47,097 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2018-12-09 10:57:47,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-09 10:57:47,097 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:57:47,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:57:47,114 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 10:57:47,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:57:47,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 13 states and 12 transitions. [2018-12-09 10:57:47,124 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2018-12-09 10:57:47,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-09 10:57:47,124 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:57:47,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:57:47,137 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 10:57:47,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:57:47,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 12 states and 11 transitions. [2018-12-09 10:57:47,146 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2018-12-09 10:57:47,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-09 10:57:47,146 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:57:47,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:57:47,169 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 10:57:47,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:57:47,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 11 states and 10 transitions. [2018-12-09 10:57:47,225 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2018-12-09 10:57:47,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-09 10:57:47,225 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:57:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:57:47,279 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 10:57:47,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:57:47,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 10 states and 9 transitions. [2018-12-09 10:57:47,495 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2018-12-09 10:57:47,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-09 10:57:47,495 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:57:47,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:57:47,581 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 10:57:48,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:57:48,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 9 states and 8 transitions. [2018-12-09 10:57:48,048 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2018-12-09 10:57:48,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 10:57:48,048 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 10:57:48,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 10:57:48,295 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 10:57:49,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 10:57:49,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 8 states and 7 transitions. [2018-12-09 10:57:49,444 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2018-12-09 10:57:49,444 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 10:57:49,444 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2018-12-09 10:57:49,450 INFO L779 CodeCheckObserver]: All specifications hold 9 specifications checked. All of them hold [2018-12-09 10:57:49,484 INFO L583 CodeCheckObserver]: Invariant with dag size 3 [2018-12-09 10:57:49,486 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 10:57:49,489 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 10:57:49,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.12 10:57:49 ImpRootNode [2018-12-09 10:57:49,490 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-09 10:57:49,491 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 10:57:49,491 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 10:57:49,491 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 10:57:49,491 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:57:46" (3/4) ... [2018-12-09 10:57:49,494 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 10:57:49,502 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-09 10:57:49,502 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 10:57:49,502 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 10:57:49,524 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2018-12-09 10:57:49,530 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e3bf8b68-1178-46f1-bf3b-b8661fa58aa1/bin-2019/ukojak/witness.graphml [2018-12-09 10:57:49,530 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 10:57:49,531 INFO L168 Benchmark]: Toolchain (without parser) took 3125.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 212.3 MB). Free memory was 950.6 MB in the beginning and 920.2 MB in the end (delta: 30.4 MB). Peak memory consumption was 242.7 MB. Max. memory is 11.5 GB. [2018-12-09 10:57:49,531 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:57:49,532 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-12-09 10:57:49,532 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.71 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 10:57:49,532 INFO L168 Benchmark]: Boogie Preprocessor took 12.78 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 10:57:49,532 INFO L168 Benchmark]: RCFGBuilder took 157.01 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-12-09 10:57:49,533 INFO L168 Benchmark]: CodeCheck took 2653.33 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.2 MB). Free memory was 1.1 GB in the beginning and 920.2 MB in the end (delta: 189.9 MB). Peak memory consumption was 258.0 MB. Max. memory is 11.5 GB. [2018-12-09 10:57:49,533 INFO L168 Benchmark]: Witness Printer took 39.39 ms. Allocated memory is still 1.2 GB. Free memory is still 920.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 10:57:49,535 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, 9 error locations. SAFE Result, 2.5s OverallTime, 10 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 0 SDtfs, 476 SDslu, 0 SDs, 0 SdLazy, 3944 SolverSat, 1820 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 255 GetRequests, 165 SyntacticMatches, 8 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2363 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 1345 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 - PositiveResult [Line: 630]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 631]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 630]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 631]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 619]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 629]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 631]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 629]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 631]: free always succeeds For all program executions holds that free always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 9 specifications checked. All of them hold - InvariantResult [Line: 619]: Loop Invariant [2018-12-09 10:57:49,536 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-09 10:57:49,536 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 236.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.71 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 12.78 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 157.01 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * CodeCheck took 2653.33 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 68.2 MB). Free memory was 1.1 GB in the beginning and 920.2 MB in the end (delta: 189.9 MB). Peak memory consumption was 258.0 MB. Max. memory is 11.5 GB. * Witness Printer took 39.39 ms. Allocated memory is still 1.2 GB. Free memory is still 920.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid RESULT: Ultimate proved your program to be correct! Received shutdown request...