./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstrlen-alloca_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_68279567-4509-4645-9851-8478550c7c6f/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_68279567-4509-4645-9851-8478550c7c6f/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_68279567-4509-4645-9851-8478550c7c6f/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_68279567-4509-4645-9851-8478550c7c6f/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_68279567-4509-4645-9851-8478550c7c6f/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_68279567-4509-4645-9851-8478550c7c6f/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 693983fd65e20b5d89b8cfa65a19d47075cafd63 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:49:35,466 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 15:49:35,467 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 15:49:35,473 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 15:49:35,473 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 15:49:35,473 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 15:49:35,474 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 15:49:35,475 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 15:49:35,476 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 15:49:35,476 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 15:49:35,476 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 15:49:35,477 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 15:49:35,477 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 15:49:35,477 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 15:49:35,478 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 15:49:35,478 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 15:49:35,479 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 15:49:35,480 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 15:49:35,481 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 15:49:35,481 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 15:49:35,482 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 15:49:35,482 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 15:49:35,484 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 15:49:35,484 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 15:49:35,484 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 15:49:35,484 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 15:49:35,485 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 15:49:35,485 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 15:49:35,485 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 15:49:35,486 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 15:49:35,486 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 15:49:35,486 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 15:49:35,487 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 15:49:35,487 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 15:49:35,487 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 15:49:35,488 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 15:49:35,488 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_68279567-4509-4645-9851-8478550c7c6f/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-12-08 15:49:35,495 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 15:49:35,495 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 15:49:35,495 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-08 15:49:35,496 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-08 15:49:35,496 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 15:49:35,496 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 15:49:35,496 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-08 15:49:35,496 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 15:49:35,496 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 15:49:35,496 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 15:49:35,496 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-08 15:49:35,496 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-08 15:49:35,496 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-12-08 15:49:35,497 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 15:49:35,497 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 15:49:35,497 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 15:49:35,497 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-08 15:49:35,497 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-08 15:49:35,497 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 15:49:35,497 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 15:49:35,497 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-08 15:49:35,497 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 15:49:35,497 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 15:49:35,497 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-08 15:49:35,498 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 15:49:35,498 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_68279567-4509-4645-9851-8478550c7c6f/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 -> 693983fd65e20b5d89b8cfa65a19d47075cafd63 [2018-12-08 15:49:35,516 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 15:49:35,524 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 15:49:35,526 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 15:49:35,526 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 15:49:35,527 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 15:49:35,527 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_68279567-4509-4645-9851-8478550c7c6f/bin-2019/ukojak/../../sv-benchmarks/c/array-memsafety/openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-12-08 15:49:35,566 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_68279567-4509-4645-9851-8478550c7c6f/bin-2019/ukojak/data/306a235d9/f2fca8f33fcc4de9a085bcc8c3c7e0ed/FLAG32547c96d [2018-12-08 15:49:35,983 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 15:49:35,984 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_68279567-4509-4645-9851-8478550c7c6f/sv-benchmarks/c/array-memsafety/openbsd_cstrlen-alloca_true-valid-memsafety_true-termination.i [2018-12-08 15:49:35,989 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_68279567-4509-4645-9851-8478550c7c6f/bin-2019/ukojak/data/306a235d9/f2fca8f33fcc4de9a085bcc8c3c7e0ed/FLAG32547c96d [2018-12-08 15:49:35,997 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_68279567-4509-4645-9851-8478550c7c6f/bin-2019/ukojak/data/306a235d9/f2fca8f33fcc4de9a085bcc8c3c7e0ed [2018-12-08 15:49:35,999 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 15:49:36,000 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 15:49:36,000 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 15:49:36,000 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 15:49:36,002 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 15:49:36,003 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:49:35" (1/1) ... [2018-12-08 15:49:36,005 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@89db293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:36, skipping insertion in model container [2018-12-08 15:49:36,005 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 03:49:35" (1/1) ... [2018-12-08 15:49:36,011 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 15:49:36,035 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 15:49:36,187 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 15:49:36,226 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 15:49:36,249 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 15:49:36,275 INFO L195 MainTranslator]: Completed translation [2018-12-08 15:49:36,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:36 WrapperNode [2018-12-08 15:49:36,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 15:49:36,276 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 15:49:36,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 15:49:36,276 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 15:49:36,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:36" (1/1) ... [2018-12-08 15:49:36,290 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:36" (1/1) ... [2018-12-08 15:49:36,302 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 15:49:36,302 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 15:49:36,302 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 15:49:36,302 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 15:49:36,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:36" (1/1) ... [2018-12-08 15:49:36,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:36" (1/1) ... [2018-12-08 15:49:36,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:36" (1/1) ... [2018-12-08 15:49:36,309 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:36" (1/1) ... [2018-12-08 15:49:36,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:36" (1/1) ... [2018-12-08 15:49:36,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:36" (1/1) ... [2018-12-08 15:49:36,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:36" (1/1) ... [2018-12-08 15:49:36,317 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 15:49:36,318 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 15:49:36,318 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 15:49:36,318 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 15:49:36,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 03:49:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_68279567-4509-4645-9851-8478550c7c6f/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 15:49:36,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-08 15:49:36,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-08 15:49:36,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-08 15:49:36,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-08 15:49:36,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 15:49:36,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 15:49:36,496 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 15:49:36,496 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-08 15:49:36,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:49:36 BoogieIcfgContainer [2018-12-08 15:49:36,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 15:49:36,496 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-08 15:49:36,496 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-08 15:49:36,503 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-08 15:49:36,504 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:49:36" (1/1) ... [2018-12-08 15:49:36,510 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 15:49:36,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 15:49:36,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2018-12-08 15:49:36,532 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2018-12-08 15:49:36,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-08 15:49:36,535 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 15:49:36,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:49:36,621 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 15:49:36,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 15:49:36,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2018-12-08 15:49:36,647 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2018-12-08 15:49:36,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-12-08 15:49:36,648 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 15:49:36,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:49:36,680 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 15:49:36,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 15:49:36,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2018-12-08 15:49:36,739 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2018-12-08 15:49:36,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-08 15:49:36,740 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 15:49:36,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:49:36,759 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 15:49:36,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 15:49:36,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2018-12-08 15:49:36,778 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2018-12-08 15:49:36,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-08 15:49:36,778 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 15:49:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:49:36,817 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 15:49:36,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 15:49:36,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2018-12-08 15:49:36,900 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2018-12-08 15:49:36,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-08 15:49:36,901 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 15:49:36,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:49:36,918 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:49:36,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 15:49:36,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2018-12-08 15:49:36,929 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2018-12-08 15:49:36,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-08 15:49:36,930 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 15:49:36,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:49:37,053 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:49:37,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 15:49:37,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2018-12-08 15:49:37,424 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2018-12-08 15:49:37,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-08 15:49:37,424 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 15:49:37,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:49:37,509 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 15:49:38,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 15:49:38,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2018-12-08 15:49:38,727 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2018-12-08 15:49:38,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-08 15:49:38,727 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 15:49:38,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:49:38,935 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-08 15:49:39,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 15:49:39,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 21 states and 31 transitions. [2018-12-08 15:49:39,889 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 31 transitions. [2018-12-08 15:49:39,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-08 15:49:39,890 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 15:49:39,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:49:39,905 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-08 15:49:40,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 15:49:40,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 23 states and 34 transitions. [2018-12-08 15:49:40,628 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 34 transitions. [2018-12-08 15:49:40,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-08 15:49:40,629 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 15:49:40,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:49:40,829 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-08 15:49:41,418 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2018-12-08 15:49:42,382 WARN L180 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32 [2018-12-08 15:49:44,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 15:49:44,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2018-12-08 15:49:44,774 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-12-08 15:49:44,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-08 15:49:44,774 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-08 15:49:44,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-08 15:49:44,794 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-12-08 15:49:45,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-08 15:49:45,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2018-12-08 15:49:45,237 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2018-12-08 15:49:45,237 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-08 15:49:45,237 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 12 iterations. [2018-12-08 15:49:45,243 INFO L779 CodeCheckObserver]: All specifications hold 5 specifications checked. All of them hold [2018-12-08 15:49:45,366 INFO L583 CodeCheckObserver]: Invariant with dag size 31 [2018-12-08 15:49:45,370 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 15:49:45,371 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 15:49:45,371 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 15:49:45,372 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 15:49:45,372 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 15:49:45,372 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 15:49:45,372 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 15:49:45,372 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 15:49:45,372 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 15:49:45,372 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 15:49:45,377 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 15:49:45,377 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 15:49:45,378 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 15:49:45,378 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 15:49:45,378 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 15:49:45,378 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 15:49:45,378 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 15:49:45,379 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 15:49:45,379 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 15:49:45,379 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 15:49:45,380 INFO L583 CodeCheckObserver]: Invariant with dag size 11 [2018-12-08 15:49:45,380 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 15:49:45,380 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 15:49:45,381 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 15:49:45,381 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 15:49:45,381 INFO L583 CodeCheckObserver]: Invariant with dag size 3 [2018-12-08 15:49:45,381 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 15:49:45,382 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 15:49:45,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.12 03:49:45 ImpRootNode [2018-12-08 15:49:45,382 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-08 15:49:45,383 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 15:49:45,383 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 15:49:45,383 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 15:49:45,384 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 03:49:36" (3/4) ... [2018-12-08 15:49:45,386 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-08 15:49:45,393 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-12-08 15:49:45,393 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-08 15:49:45,394 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-08 15:49:45,416 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\valid[__builtin_alloca (length1 * sizeof(char)) := 0] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length1 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))]] && 0 == unknown-#memory_int-unknown[s][unknown-#length-unknown[s] + -1]) && \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length1 * sizeof(char))]) && 1 == \valid[s]) && s == 0) && 1 <= unknown-#length-unknown[s]) || (((((\valid[__builtin_alloca (length1 * sizeof(char)) := 0] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length1 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))]] && 0 == unknown-#memory_int-unknown[s][unknown-#length-unknown[s] + -1]) && 1 <= s) && s + 1 <= unknown-#length-unknown[s]) && \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length1 * sizeof(char))]) && 1 == \valid[s]) [2018-12-08 15:49:45,416 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \valid[__builtin_alloca (length1 * sizeof(char)) := 0] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length1 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))]] && \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length1 * sizeof(char))] [2018-12-08 15:49:45,416 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2018-12-08 15:49:45,428 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_68279567-4509-4645-9851-8478550c7c6f/bin-2019/ukojak/witness.graphml [2018-12-08 15:49:45,428 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 15:49:45,428 INFO L168 Benchmark]: Toolchain (without parser) took 9429.31 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 304.6 MB). Free memory was 951.7 MB in the beginning and 1.3 GB in the end (delta: -326.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 15:49:45,429 INFO L168 Benchmark]: CDTParser took 0.10 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 15:49:45,429 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -153.9 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. [2018-12-08 15:49:45,430 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.17 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. [2018-12-08 15:49:45,430 INFO L168 Benchmark]: Boogie Preprocessor took 15.20 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. [2018-12-08 15:49:45,430 INFO L168 Benchmark]: RCFGBuilder took 178.48 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-12-08 15:49:45,430 INFO L168 Benchmark]: CodeCheck took 8885.99 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 183.5 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -197.8 MB). Peak memory consumption was 448.2 MB. Max. memory is 11.5 GB. [2018-12-08 15:49:45,431 INFO L168 Benchmark]: Witness Printer took 45.34 ms. Allocated memory is still 1.3 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 15:49:45,432 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 19 locations, 5 error locations. SAFE Result, 8.7s OverallTime, 12 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 256 SDtfs, 472 SDslu, 80 SDs, 0 SdLazy, 19196 SolverSat, 9252 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 560 GetRequests, 419 SyntacticMatches, 19 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5225 ImplicationChecksByTransitivity, 7.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 5208 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 11/23 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: 554]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 554]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 548]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 544]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 544]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - InvariantResult [Line: 544]: Loop Invariant [2018-12-08 15:49:45,434 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 15:49:45,434 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 15:49:45,434 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 15:49:45,435 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 15:49:45,435 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 15:49:45,435 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 15:49:45,435 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 15:49:45,435 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 15:49:45,435 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 15:49:45,435 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 15:49:45,436 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 15:49:45,437 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 15:49:45,437 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 15:49:45,437 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 15:49:45,437 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 15:49:45,437 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 15:49:45,437 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-08 15:49:45,438 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 15:49:45,438 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-08 15:49:45,438 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: (((((\valid[__builtin_alloca (length1 * sizeof(char)) := 0] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length1 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))]] && 0 == unknown-#memory_int-unknown[s][unknown-#length-unknown[s] + -1]) && \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length1 * sizeof(char))]) && 1 == \valid[s]) && s == 0) && 1 <= unknown-#length-unknown[s]) || (((((\valid[__builtin_alloca (length1 * sizeof(char)) := 0] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length1 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))]] && 0 == unknown-#memory_int-unknown[s][unknown-#length-unknown[s] + -1]) && 1 <= s) && s + 1 <= unknown-#length-unknown[s]) && \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length1 * sizeof(char))]) && 1 == \valid[s]) - InvariantResult [Line: 544]: Loop Invariant [2018-12-08 15:49:45,438 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 15:49:45,439 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 15:49:45,439 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 15:49:45,439 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \valid[__builtin_alloca (length1 * sizeof(char)) := 0] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length1 * sizeof(char)) := \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))]] && \valid[__builtin_alloca (length1 * sizeof(char)) := 0][__builtin_alloca (length1 * sizeof(char))] == \old(unknown-main_\old_#valid-unknown)[__builtin_alloca (length1 * sizeof(char))] - InvariantResult [Line: 548]: Loop Invariant [2018-12-08 15:49:45,440 WARN L1298 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-12-08 15:49:45,440 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 0.10 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 275.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.1 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -153.9 MB). Peak memory consumption was 24.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.17 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 15.20 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 178.48 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * CodeCheck took 8885.99 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 183.5 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -197.8 MB). Peak memory consumption was 448.2 MB. Max. memory is 11.5 GB. * Witness Printer took 45.34 ms. Allocated memory is still 1.3 GB. Free memory is still 1.3 GB. 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 #memory_int - 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 #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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 #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 #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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 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 #memory_int - 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 #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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 #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 #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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 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...