./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/naturalNumbers1_false-valid-deref.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_4db4a9c8-2ed2-4d60-89e2-1875a6871ae9/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_4db4a9c8-2ed2-4d60-89e2-1875a6871ae9/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_4db4a9c8-2ed2-4d60-89e2-1875a6871ae9/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_4db4a9c8-2ed2-4d60-89e2-1875a6871ae9/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/naturalNumbers1_false-valid-deref.c -s /tmp/vcloud-vcloud-master/worker/working_dir_4db4a9c8-2ed2-4d60-89e2-1875a6871ae9/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_4db4a9c8-2ed2-4d60-89e2-1875a6871ae9/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 932f76685ed1816d93a388d0ab1addae9c51483a ............................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 15:56:31,654 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:56:31,656 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:56:31,666 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:56:31,667 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:56:31,667 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:56:31,668 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:56:31,669 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:56:31,671 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:56:31,671 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:56:31,672 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:56:31,676 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:56:31,677 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:56:31,678 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:56:31,679 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:56:31,679 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:56:31,680 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:56:31,685 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:56:31,688 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:56:31,690 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:56:31,690 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:56:31,691 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:56:31,694 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:56:31,694 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:56:31,694 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:56:31,695 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:56:31,696 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:56:31,697 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:56:31,697 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:56:31,698 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:56:31,698 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:56:31,699 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:56:31,699 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:56:31,699 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:56:31,700 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:56:31,701 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:56:31,701 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_4db4a9c8-2ed2-4d60-89e2-1875a6871ae9/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-11-18 15:56:31,712 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:56:31,712 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:56:31,713 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 15:56:31,713 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 15:56:31,713 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:56:31,714 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:56:31,714 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 15:56:31,714 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:56:31,714 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:56:31,714 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:56:31,714 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-18 15:56:31,714 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-18 15:56:31,714 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-18 15:56:31,714 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:56:31,715 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:56:31,715 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:56:31,715 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 15:56:31,715 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 15:56:31,715 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:56:31,715 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:56:31,715 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 15:56:31,715 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:56:31,716 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:56:31,716 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 15:56:31,716 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:56:31,718 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_4db4a9c8-2ed2-4d60-89e2-1875a6871ae9/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 -> 932f76685ed1816d93a388d0ab1addae9c51483a [2018-11-18 15:56:31,748 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:56:31,761 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:56:31,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:56:31,764 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:56:31,764 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:56:31,765 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_4db4a9c8-2ed2-4d60-89e2-1875a6871ae9/bin-2019/ukojak/../../sv-benchmarks/c/memsafety-ext3/naturalNumbers1_false-valid-deref.c [2018-11-18 15:56:31,810 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4db4a9c8-2ed2-4d60-89e2-1875a6871ae9/bin-2019/ukojak/data/d2b05b5d3/c96079f97b0449bda319c45aece00583/FLAG8dde6e85d [2018-11-18 15:56:32,167 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:56:32,167 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_4db4a9c8-2ed2-4d60-89e2-1875a6871ae9/sv-benchmarks/c/memsafety-ext3/naturalNumbers1_false-valid-deref.c [2018-11-18 15:56:32,172 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_4db4a9c8-2ed2-4d60-89e2-1875a6871ae9/bin-2019/ukojak/data/d2b05b5d3/c96079f97b0449bda319c45aece00583/FLAG8dde6e85d [2018-11-18 15:56:32,181 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_4db4a9c8-2ed2-4d60-89e2-1875a6871ae9/bin-2019/ukojak/data/d2b05b5d3/c96079f97b0449bda319c45aece00583 [2018-11-18 15:56:32,184 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:56:32,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:56:32,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:56:32,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:56:32,189 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:56:32,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:56:32" (1/1) ... [2018-11-18 15:56:32,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@263ee91f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:56:32, skipping insertion in model container [2018-11-18 15:56:32,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:56:32" (1/1) ... [2018-11-18 15:56:32,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:56:32,214 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:56:32,363 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:56:32,374 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:56:32,389 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:56:32,402 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:56:32,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:56:32 WrapperNode [2018-11-18 15:56:32,402 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:56:32,403 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:56:32,403 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:56:32,403 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:56:32,410 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:56:32" (1/1) ... [2018-11-18 15:56:32,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:56:32" (1/1) ... [2018-11-18 15:56:32,433 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:56:32,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:56:32,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:56:32,433 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:56:32,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:56:32" (1/1) ... [2018-11-18 15:56:32,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:56:32" (1/1) ... [2018-11-18 15:56:32,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:56:32" (1/1) ... [2018-11-18 15:56:32,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:56:32" (1/1) ... [2018-11-18 15:56:32,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:56:32" (1/1) ... [2018-11-18 15:56:32,508 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:56:32" (1/1) ... [2018-11-18 15:56:32,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:56:32" (1/1) ... [2018-11-18 15:56:32,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:56:32,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:56:32,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:56:32,511 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:56:32,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:56:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_4db4a9c8-2ed2-4d60-89e2-1875a6871ae9/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 [2018-11-18 15:56:32,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:56:32,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:56:32,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:56:32,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 15:56:32,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 15:56:32,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 15:56:32,740 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:56:32,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:56:32 BoogieIcfgContainer [2018-11-18 15:56:32,741 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:56:32,741 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 15:56:32,742 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 15:56:32,750 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 15:56:32,751 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:56:32" (1/1) ... [2018-11-18 15:56:32,758 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:56:32,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:56:32,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2018-11-18 15:56:32,780 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2018-11-18 15:56:32,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-11-18 15:56:32,782 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:56:32,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:56:32,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:56:32,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:56:32,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2018-11-18 15:56:32,931 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2018-11-18 15:56:32,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-11-18 15:56:32,931 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:56:32,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:56:33,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:56:33,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:56:33,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 18 states and 22 transitions. [2018-11-18 15:56:33,246 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2018-11-18 15:56:33,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 15:56:33,248 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:56:33,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:56:33,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:56:33,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:56:33,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2018-11-18 15:56:33,510 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2018-11-18 15:56:33,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-18 15:56:33,511 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:56:33,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:56:33,659 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:56:34,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:56:34,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 28 states and 42 transitions. [2018-11-18 15:56:34,074 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 42 transitions. [2018-11-18 15:56:34,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-18 15:56:34,075 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:56:34,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:56:34,088 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:56:34,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:56:34,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 28 states and 41 transitions. [2018-11-18 15:56:34,242 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2018-11-18 15:56:34,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 15:56:34,243 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:56:34,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:56:34,309 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:56:34,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:56:34,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 30 states and 45 transitions. [2018-11-18 15:56:34,474 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 45 transitions. [2018-11-18 15:56:34,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 15:56:34,474 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:56:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:56:34,667 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:56:35,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:56:35,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 38 states and 67 transitions. [2018-11-18 15:56:35,524 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 67 transitions. [2018-11-18 15:56:35,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 15:56:35,524 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:56:35,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:56:35,684 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 15:56:36,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:56:36,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 8 states and 7 transitions. [2018-11-18 15:56:36,189 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2018-11-18 15:56:36,189 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 15:56:36,189 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2018-11-18 15:56:36,195 INFO L775 CodeCheckObserver]: All specifications hold 3 specifications checked. All of them hold [2018-11-18 15:56:36,247 INFO L579 CodeCheckObserver]: Invariant with dag size 35 [2018-11-18 15:56:36,250 WARN L1239 BoogieBacktranslator]: unknown boogie variable #length [2018-11-18 15:56:36,251 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:56:36,251 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:56:36,252 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 15:56:36,252 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 15:56:36,265 WARN L1239 BoogieBacktranslator]: unknown boogie variable #length [2018-11-18 15:56:36,268 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:56:36,268 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:56:36,268 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 15:56:36,269 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 15:56:36,270 INFO L579 CodeCheckObserver]: Invariant with dag size 3 [2018-11-18 15:56:36,270 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:56:36,271 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:56:36,271 INFO L579 CodeCheckObserver]: Invariant with dag size 11 [2018-11-18 15:56:36,272 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:56:36,272 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:56:36,273 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:56:36,274 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:56:36,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 03:56:36 ImpRootNode [2018-11-18 15:56:36,274 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 15:56:36,275 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:56:36,275 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:56:36,275 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:56:36,275 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:56:32" (3/4) ... [2018-11-18 15:56:36,279 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 15:56:36,288 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-11-18 15:56:36,288 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-18 15:56:36,288 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 15:56:36,289 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 15:56:36,307 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((unknown-#length-unknown[numbers] == 10 && \valid[numbers] == 1) && \valid[numbers := 0] == \old(unknown-main_\old_#valid-unknown)[numbers := \valid[numbers := 0][numbers]]) && numbers == numbers) && 0 <= numbers) && \valid[numbers := 0][numbers] == \old(unknown-main_\old_#valid-unknown)[numbers]) && i == 0) && numbers <= 0) && 4 == unknown-#memory_int-unknown[numbers][numbers + 4]) && 0 == unknown-#memory_int-unknown[numbers][numbers + 4 * i] [2018-11-18 15:56:36,307 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \valid[numbers := 0] == \old(unknown-main_\old_#valid-unknown)[numbers := \valid[numbers := 0][numbers]] && \valid[numbers := 0][numbers] == \old(unknown-main_\old_#valid-unknown)[numbers] [2018-11-18 15:56:36,308 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2018-11-18 15:56:36,320 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_4db4a9c8-2ed2-4d60-89e2-1875a6871ae9/bin-2019/ukojak/witness.graphml [2018-11-18 15:56:36,320 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:56:36,321 INFO L168 Benchmark]: Toolchain (without parser) took 4136.50 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 230.2 MB). Free memory was 959.8 MB in the beginning and 1.0 GB in the end (delta: -42.5 MB). Peak memory consumption was 187.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:56:36,322 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:56:36,322 INFO L168 Benchmark]: CACSL2BoogieTranslator took 216.48 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 947.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:56:36,322 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.11 ms. Allocated memory is still 1.0 GB. Free memory was 947.7 MB in the beginning and 945.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:56:36,323 INFO L168 Benchmark]: Boogie Preprocessor took 77.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 945.0 MB in the beginning and 1.2 GB in the end (delta: -219.4 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2018-11-18 15:56:36,323 INFO L168 Benchmark]: RCFGBuilder took 230.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 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. [2018-11-18 15:56:36,323 INFO L168 Benchmark]: CodeCheck took 3532.81 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 63.4 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 138.6 MB). Peak memory consumption was 202.0 MB. Max. memory is 11.5 GB. [2018-11-18 15:56:36,323 INFO L168 Benchmark]: Witness Printer took 45.63 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 11.5 GB. [2018-11-18 15:56:36,329 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, 14 locations, 3 error locations. SAFE Result, 3.4s OverallTime, 9 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 896 SDtfs, 1936 SDslu, 2224 SDs, 0 SdLazy, 4592 SolverSat, 1260 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 567 GetRequests, 487 SyntacticMatches, 6 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2006 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 56 ConstructedInterpolants, 0 QuantifiedInterpolants, 4297 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 13/22 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: 4]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 4]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 3]: Loop Invariant [2018-11-18 15:56:36,331 WARN L1239 BoogieBacktranslator]: unknown boogie variable #length [2018-11-18 15:56:36,331 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:56:36,331 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:56:36,332 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 15:56:36,332 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 15:56:36,333 WARN L1239 BoogieBacktranslator]: unknown boogie variable #length [2018-11-18 15:56:36,333 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:56:36,333 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:56:36,333 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 15:56:36,333 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((((((unknown-#length-unknown[numbers] == 10 && \valid[numbers] == 1) && \valid[numbers := 0] == \old(unknown-main_\old_#valid-unknown)[numbers := \valid[numbers := 0][numbers]]) && numbers == numbers) && 0 <= numbers) && \valid[numbers := 0][numbers] == \old(unknown-main_\old_#valid-unknown)[numbers]) && i == 0) && numbers <= 0) && 4 == unknown-#memory_int-unknown[numbers][numbers + 4]) && 0 == unknown-#memory_int-unknown[numbers][numbers + 4 * i] - InvariantResult [Line: 12]: Loop Invariant [2018-11-18 15:56:36,334 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:56:36,334 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid - InvariantResult [Line: 1]: Loop Invariant [2018-11-18 15:56:36,335 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:56:36,335 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:56:36,335 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:56:36,335 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \valid[numbers := 0] == \old(unknown-main_\old_#valid-unknown)[numbers := \valid[numbers := 0][numbers]] && \valid[numbers := 0][numbers] == \old(unknown-main_\old_#valid-unknown)[numbers] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 216.48 ms. Allocated memory is still 1.0 GB. Free memory was 959.8 MB in the beginning and 947.7 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.11 ms. Allocated memory is still 1.0 GB. Free memory was 947.7 MB in the beginning and 945.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 77.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.7 MB). Free memory was 945.0 MB in the beginning and 1.2 GB in the end (delta: -219.4 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 230.54 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 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 3532.81 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 63.4 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 138.6 MB). Peak memory consumption was 202.0 MB. Max. memory is 11.5 GB. * Witness Printer took 45.63 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - 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 - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - 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 - 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...