./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/scopes4_true-valid-memsafety.c --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_7c0205e8-93a1-4b58-a08c-c250d98ada54/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7c0205e8-93a1-4b58-a08c-c250d98ada54/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7c0205e8-93a1-4b58-a08c-c250d98ada54/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7c0205e8-93a1-4b58-a08c-c250d98ada54/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes4_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7c0205e8-93a1-4b58-a08c-c250d98ada54/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7c0205e8-93a1-4b58-a08c-c250d98ada54/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 87dcbb1d4539995e5aba39e6053775ca0fac811e ............................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-08 11:07:27,523 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 11:07:27,524 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 11:07:27,530 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 11:07:27,530 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 11:07:27,531 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 11:07:27,532 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 11:07:27,532 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 11:07:27,533 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 11:07:27,534 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 11:07:27,534 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 11:07:27,534 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 11:07:27,535 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 11:07:27,535 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 11:07:27,536 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 11:07:27,536 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 11:07:27,537 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 11:07:27,537 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 11:07:27,538 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 11:07:27,539 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 11:07:27,540 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 11:07:27,540 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 11:07:27,541 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 11:07:27,541 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 11:07:27,542 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 11:07:27,542 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 11:07:27,543 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 11:07:27,543 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 11:07:27,543 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 11:07:27,544 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 11:07:27,544 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 11:07:27,544 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 11:07:27,544 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 11:07:27,544 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 11:07:27,545 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 11:07:27,545 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 11:07:27,546 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7c0205e8-93a1-4b58-a08c-c250d98ada54/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-12-08 11:07:27,553 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 11:07:27,553 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 11:07:27,553 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 11:07:27,554 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 11:07:27,554 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 11:07:27,554 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 11:07:27,554 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 11:07:27,554 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 11:07:27,554 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 11:07:27,554 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 11:07:27,554 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-08 11:07:27,554 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-08 11:07:27,554 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-08 11:07:27,554 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 11:07:27,555 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 11:07:27,555 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 11:07:27,555 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-08 11:07:27,555 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-08 11:07:27,555 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 11:07:27,555 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 11:07:27,555 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-08 11:07:27,555 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 11:07:27,555 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 11:07:27,555 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-08 11:07:27,555 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 11:07:27,556 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_7c0205e8-93a1-4b58-a08c-c250d98ada54/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 -> 87dcbb1d4539995e5aba39e6053775ca0fac811e [2018-12-08 11:07:27,572 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 11:07:27,579 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 11:07:27,581 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 11:07:27,582 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 11:07:27,582 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 11:07:27,583 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7c0205e8-93a1-4b58-a08c-c250d98ada54/bin-2019/ukojak/../../sv-benchmarks/c/memsafety-ext3/scopes4_true-valid-memsafety.c [2018-12-08 11:07:27,617 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7c0205e8-93a1-4b58-a08c-c250d98ada54/bin-2019/ukojak/data/719fca676/13d5ff233cf4461cbd6e890a0b7cdcc6/FLAGa0d1de8f8 [2018-12-08 11:07:27,998 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 11:07:27,998 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7c0205e8-93a1-4b58-a08c-c250d98ada54/sv-benchmarks/c/memsafety-ext3/scopes4_true-valid-memsafety.c [2018-12-08 11:07:28,002 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7c0205e8-93a1-4b58-a08c-c250d98ada54/bin-2019/ukojak/data/719fca676/13d5ff233cf4461cbd6e890a0b7cdcc6/FLAGa0d1de8f8 [2018-12-08 11:07:28,010 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7c0205e8-93a1-4b58-a08c-c250d98ada54/bin-2019/ukojak/data/719fca676/13d5ff233cf4461cbd6e890a0b7cdcc6 [2018-12-08 11:07:28,012 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 11:07:28,012 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 11:07:28,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 11:07:28,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 11:07:28,015 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 11:07:28,016 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:07:28" (1/1) ... [2018-12-08 11:07:28,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@489644d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:07:28, skipping insertion in model container [2018-12-08 11:07:28,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 11:07:28" (1/1) ... [2018-12-08 11:07:28,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 11:07:28,035 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 11:07:28,122 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 11:07:28,162 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 11:07:28,171 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 11:07:28,188 INFO L195 MainTranslator]: Completed translation [2018-12-08 11:07:28,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:07:28 WrapperNode [2018-12-08 11:07:28,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 11:07:28,189 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 11:07:28,189 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 11:07:28,189 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 11:07:28,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:07:28" (1/1) ... [2018-12-08 11:07:28,231 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:07:28" (1/1) ... [2018-12-08 11:07:28,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 11:07:28,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 11:07:28,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 11:07:28,248 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 11:07:28,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:07:28" (1/1) ... [2018-12-08 11:07:28,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:07:28" (1/1) ... [2018-12-08 11:07:28,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:07:28" (1/1) ... [2018-12-08 11:07:28,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:07:28" (1/1) ... [2018-12-08 11:07:28,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:07:28" (1/1) ... [2018-12-08 11:07:28,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:07:28" (1/1) ... [2018-12-08 11:07:28,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:07:28" (1/1) ... [2018-12-08 11:07:28,263 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 11:07:28,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 11:07:28,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 11:07:28,263 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 11:07:28,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 11:07:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7c0205e8-93a1-4b58-a08c-c250d98ada54/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 [2018-12-08 11:07:28,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 11:07:28,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 11:07:28,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 11:07:28,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 11:07:28,297 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 11:07:28,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2018-12-08 11:07:28,485 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 11:07:28,485 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-08 11:07:28,485 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:07:28 BoogieIcfgContainer [2018-12-08 11:07:28,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 11:07:28,486 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-08 11:07:28,486 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-08 11:07:28,492 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-08 11:07:28,492 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:07:28" (1/1) ... [2018-12-08 11:07:28,499 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 11:07:28,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:07:28,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 10 states and 9 transitions. [2018-12-08 11:07:28,521 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2018-12-08 11:07:28,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-08 11:07:28,523 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:07:28,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:07:28,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:07:28,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:07:28,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 9 states and 8 transitions. [2018-12-08 11:07:28,671 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2018-12-08 11:07:28,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-08 11:07:28,671 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:07:28,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:07:28,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:07:28,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:07:28,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 8 states and 7 transitions. [2018-12-08 11:07:28,775 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2018-12-08 11:07:28,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-08 11:07:28,775 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:07:28,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:07:28,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:07:28,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:07:28,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 7 states and 6 transitions. [2018-12-08 11:07:28,820 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2018-12-08 11:07:28,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-08 11:07:28,820 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:07:28,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:07:28,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:07:28,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:07:28,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 6 states and 5 transitions. [2018-12-08 11:07:28,968 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2018-12-08 11:07:28,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-08 11:07:28,968 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 11:07:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 11:07:29,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 11:07:29,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 11:07:29,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 5 states and 4 transitions. [2018-12-08 11:07:29,176 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 4 transitions. [2018-12-08 11:07:29,176 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 11:07:29,176 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2018-12-08 11:07:29,183 INFO L779 CodeCheckObserver]: All specifications hold 5 specifications checked. All of them hold [2018-12-08 11:07:29,198 INFO L583 CodeCheckObserver]: Invariant with dag size 15 [2018-12-08 11:07:29,201 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 11:07:29,201 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:07:29,205 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 11:07:29,205 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:07:29,206 INFO L583 CodeCheckObserver]: Invariant with dag size 3 [2018-12-08 11:07:29,206 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 11:07:29,206 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 11:07:29,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.12 11:07:29 ImpRootNode [2018-12-08 11:07:29,207 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-08 11:07:29,207 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 11:07:29,207 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 11:07:29,207 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 11:07:29,207 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 11:07:28" (3/4) ... [2018-12-08 11:07:29,210 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 11:07:29,217 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-12-08 11:07:29,218 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-08 11:07:29,218 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-08 11:07:29,218 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-08 11:07:29,236 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(unknown-main_\old_#valid-unknown) == \valid && arr == 0) && 1 == \valid[arr]) && unknown-#length-unknown[arr] == 4096 [2018-12-08 11:07:29,236 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2018-12-08 11:07:29,254 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7c0205e8-93a1-4b58-a08c-c250d98ada54/bin-2019/ukojak/witness.graphml [2018-12-08 11:07:29,254 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 11:07:29,255 INFO L168 Benchmark]: Toolchain (without parser) took 1242.92 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 957.1 MB in the beginning and 930.8 MB in the end (delta: 26.2 MB). Peak memory consumption was 127.4 MB. Max. memory is 11.5 GB. [2018-12-08 11:07:29,256 INFO L168 Benchmark]: CDTParser took 0.11 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. [2018-12-08 11:07:29,256 INFO L168 Benchmark]: CACSL2BoogieTranslator took 175.35 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 939.9 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. [2018-12-08 11:07:29,256 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.05 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -152.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-08 11:07:29,256 INFO L168 Benchmark]: Boogie Preprocessor took 14.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 11:07:29,256 INFO L168 Benchmark]: RCFGBuilder took 222.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. [2018-12-08 11:07:29,257 INFO L168 Benchmark]: CodeCheck took 721.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 930.8 MB in the end (delta: 128.5 MB). Peak memory consumption was 128.5 MB. Max. memory is 11.5 GB. [2018-12-08 11:07:29,257 INFO L168 Benchmark]: Witness Printer took 47.44 ms. Allocated memory is still 1.1 GB. Free memory is still 930.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 11:07:29,258 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. SAFE Result, 0.6s OverallTime, 6 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 0 SDtfs, 8 SDslu, 0 SDs, 0 SdLazy, 246 SolverSat, 126 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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: 6]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 6]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 16]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - InvariantResult [Line: 6]: Loop Invariant [2018-12-08 11:07:29,259 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 11:07:29,259 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 11:07:29,259 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 11:07:29,260 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: ((\old(unknown-main_\old_#valid-unknown) == \valid && arr == 0) && 1 == \valid[arr]) && unknown-#length-unknown[arr] == 4096 - InvariantResult [Line: 16]: Loop Invariant [2018-12-08 11:07:29,260 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 11:07:29,260 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 0.11 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 175.35 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 939.9 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 59.05 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 101.2 MB). Free memory was 939.9 MB in the beginning and 1.1 GB in the end (delta: -152.4 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.75 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 222.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. * CodeCheck took 721.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 930.8 MB in the end (delta: 128.5 MB). Peak memory consumption was 128.5 MB. Max. memory is 11.5 GB. * Witness Printer took 47.44 ms. Allocated memory is still 1.1 GB. Free memory is still 930.8 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 #length - 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 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 #length - 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...