./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cbzero-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_9b11e76e-1677-4205-89b5-e2b491a9389d/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_9b11e76e-1677-4205-89b5-e2b491a9389d/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_9b11e76e-1677-4205-89b5-e2b491a9389d/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_9b11e76e-1677-4205-89b5-e2b491a9389d/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cbzero-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_9b11e76e-1677-4205-89b5-e2b491a9389d/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_9b11e76e-1677-4205-89b5-e2b491a9389d/bin/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 822411a57a10ce043cb0121fce52bdc7e9506783 ................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 18:11:19,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 18:11:19,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 18:11:19,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 18:11:19,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 18:11:19,375 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 18:11:19,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 18:11:19,384 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 18:11:19,401 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 18:11:19,409 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 18:11:19,412 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 18:11:19,415 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 18:11:19,416 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 18:11:19,422 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 18:11:19,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 18:11:19,430 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 18:11:19,432 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 18:11:19,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 18:11:19,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 18:11:19,455 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 18:11:19,459 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 18:11:19,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 18:11:19,465 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 18:11:19,467 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 18:11:19,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 18:11:19,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 18:11:19,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 18:11:19,484 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 18:11:19,486 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 18:11:19,488 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 18:11:19,489 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 18:11:19,491 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 18:11:19,493 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 18:11:19,495 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 18:11:19,497 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 18:11:19,498 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 18:11:19,500 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 18:11:19,500 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 18:11:19,501 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 18:11:19,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 18:11:19,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 18:11:19,511 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_9b11e76e-1677-4205-89b5-e2b491a9389d/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-12-01 18:11:19,571 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 18:11:19,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 18:11:19,575 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 18:11:19,576 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 18:11:19,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 18:11:19,577 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 18:11:19,577 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 18:11:19,577 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 18:11:19,578 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 18:11:19,578 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 18:11:19,579 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-01 18:11:19,580 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-01 18:11:19,580 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-01 18:11:19,581 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 18:11:19,581 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 18:11:19,581 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 18:11:19,582 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 18:11:19,582 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 18:11:19,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 18:11:19,583 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 18:11:19,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:11:19,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 18:11:19,584 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 18:11:19,584 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 18:11:19,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 18:11:19,585 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_9b11e76e-1677-4205-89b5-e2b491a9389d/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_9b11e76e-1677-4205-89b5-e2b491a9389d/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 822411a57a10ce043cb0121fce52bdc7e9506783 [2020-12-01 18:11:20,055 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 18:11:20,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 18:11:20,129 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 18:11:20,131 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 18:11:20,133 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 18:11:20,135 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_9b11e76e-1677-4205-89b5-e2b491a9389d/bin/ukojak/../../sv-benchmarks/c/array-memsafety/openbsd_cbzero-alloca-2.i [2020-12-01 18:11:20,252 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9b11e76e-1677-4205-89b5-e2b491a9389d/bin/ukojak/data/a10971874/0385b04b1d1d4cbfae81928a8a4f6ea0/FLAG9777c5658 [2020-12-01 18:11:20,989 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 18:11:20,990 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_9b11e76e-1677-4205-89b5-e2b491a9389d/sv-benchmarks/c/array-memsafety/openbsd_cbzero-alloca-2.i [2020-12-01 18:11:21,014 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_9b11e76e-1677-4205-89b5-e2b491a9389d/bin/ukojak/data/a10971874/0385b04b1d1d4cbfae81928a8a4f6ea0/FLAG9777c5658 [2020-12-01 18:11:21,270 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_9b11e76e-1677-4205-89b5-e2b491a9389d/bin/ukojak/data/a10971874/0385b04b1d1d4cbfae81928a8a4f6ea0 [2020-12-01 18:11:21,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 18:11:21,280 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 18:11:21,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 18:11:21,287 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 18:11:21,293 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 18:11:21,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:11:21" (1/1) ... [2020-12-01 18:11:21,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fa5256f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:11:21, skipping insertion in model container [2020-12-01 18:11:21,297 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:11:21" (1/1) ... [2020-12-01 18:11:21,308 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 18:11:21,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 18:11:22,033 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:11:22,057 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 18:11:22,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:11:22,207 INFO L208 MainTranslator]: Completed translation [2020-12-01 18:11:22,208 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:11:22 WrapperNode [2020-12-01 18:11:22,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 18:11:22,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 18:11:22,211 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 18:11:22,211 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 18:11:22,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:11:22" (1/1) ... [2020-12-01 18:11:22,243 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:11:22" (1/1) ... [2020-12-01 18:11:22,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 18:11:22,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 18:11:22,284 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 18:11:22,284 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 18:11:22,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:11:22" (1/1) ... [2020-12-01 18:11:22,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:11:22" (1/1) ... [2020-12-01 18:11:22,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:11:22" (1/1) ... [2020-12-01 18:11:22,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:11:22" (1/1) ... [2020-12-01 18:11:22,328 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:11:22" (1/1) ... [2020-12-01 18:11:22,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:11:22" (1/1) ... [2020-12-01 18:11:22,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:11:22" (1/1) ... [2020-12-01 18:11:22,345 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 18:11:22,346 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 18:11:22,346 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 18:11:22,347 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 18:11:22,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:11:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_9b11e76e-1677-4205-89b5-e2b491a9389d/bin/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 [2020-12-01 18:11:22,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 18:11:22,473 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 18:11:22,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 18:11:22,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 18:11:22,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 18:11:22,977 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 18:11:22,978 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-01 18:11:22,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:11:22 BoogieIcfgContainer [2020-12-01 18:11:22,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 18:11:22,983 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 18:11:22,983 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 18:11:22,999 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 18:11:23,000 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:11:22" (1/1) ... [2020-12-01 18:11:23,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 18:11:23,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:11:23,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2020-12-01 18:11:23,087 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-12-01 18:11:23,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 18:11:23,100 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:11:23,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:11:23,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:11:23,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:11:23,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2020-12-01 18:11:23,443 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-12-01 18:11:23,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 18:11:23,444 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:11:23,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:11:23,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:11:23,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:11:23,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2020-12-01 18:11:23,549 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-12-01 18:11:23,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 18:11:23,550 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:11:23,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:11:23,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:11:23,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:11:23,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2020-12-01 18:11:23,821 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2020-12-01 18:11:23,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 18:11:23,822 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:11:23,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:11:24,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:11:24,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:11:24,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2020-12-01 18:11:24,683 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2020-12-01 18:11:24,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 18:11:24,684 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:11:24,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:11:25,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:11:26,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:11:26,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2020-12-01 18:11:26,022 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2020-12-01 18:11:26,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 18:11:26,026 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:11:26,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:11:26,065 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 18:11:26,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:11:26,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 20 states and 29 transitions. [2020-12-01 18:11:26,317 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 29 transitions. [2020-12-01 18:11:26,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 18:11:26,318 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:11:26,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:11:27,054 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:11:30,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:11:30,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 26 states and 42 transitions. [2020-12-01 18:11:30,151 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 42 transitions. [2020-12-01 18:11:30,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 18:11:30,152 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:11:30,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:11:30,354 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 18:11:32,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:11:32,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 32 states and 57 transitions. [2020-12-01 18:11:32,503 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 57 transitions. [2020-12-01 18:11:32,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 18:11:32,505 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:11:32,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:11:33,217 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:11:36,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:11:36,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 36 states and 75 transitions. [2020-12-01 18:11:36,490 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 75 transitions. [2020-12-01 18:11:36,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 18:11:36,491 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:11:36,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:11:36,559 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-01 18:11:37,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:11:37,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 36 states and 74 transitions. [2020-12-01 18:11:37,267 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 74 transitions. [2020-12-01 18:11:37,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 18:11:37,268 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:11:37,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:11:37,317 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-01 18:11:37,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:11:37,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 37 states and 77 transitions. [2020-12-01 18:11:37,923 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 77 transitions. [2020-12-01 18:11:37,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 18:11:37,924 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:11:37,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:11:37,979 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-01 18:11:39,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:11:39,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 39 states and 81 transitions. [2020-12-01 18:11:39,465 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 81 transitions. [2020-12-01 18:11:39,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 18:11:39,467 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:11:39,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:11:40,790 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:11:42,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:11:42,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 40 states and 83 transitions. [2020-12-01 18:11:42,493 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 83 transitions. [2020-12-01 18:11:42,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 18:11:42,495 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:11:42,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:11:42,561 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-01 18:11:43,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:11:43,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 36 states and 76 transitions. [2020-12-01 18:11:43,312 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 76 transitions. [2020-12-01 18:11:43,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 18:11:43,313 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:11:43,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:11:43,570 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:11:44,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:11:44,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 14 states and 19 transitions. [2020-12-01 18:11:44,586 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 19 transitions. [2020-12-01 18:11:44,586 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 18:11:44,587 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 16 iterations. [2020-12-01 18:11:44,595 INFO L765 CodeCheckObserver]: All specifications hold 3 specifications checked. All of them hold [2020-12-01 18:11:44,853 WARN L197 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2020-12-01 18:11:45,049 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-12-01 18:11:45,057 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:11:45,065 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:11:45,067 INFO L569 CodeCheckObserver]: Invariant with dag size 37 [2020-12-01 18:11:45,070 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:11:45,071 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:11:45,071 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:11:45,072 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:11:45,073 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:11:45,073 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:11:45,076 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:11:45,077 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:11:45,077 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:11:45,078 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:11:45,078 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:11:45,079 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:11:45,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:11:45 ImpRootNode [2020-12-01 18:11:45,083 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 18:11:45,084 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 18:11:45,085 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 18:11:45,086 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 18:11:45,093 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:11:22" (3/4) ... [2020-12-01 18:11:45,100 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 18:11:45,117 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-12-01 18:11:45,134 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-01 18:11:45,134 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 18:11:45,181 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2020-12-01 18:11:45,182 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\valid[p] == 1 && 2 <= p) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length * sizeof(char)) := 0]) && 4294967296 * ((length + p + unknown-#length-unknown[p] * -1 + 4294967295) / 4294967296) <= length) || (((((\valid[p] == 1 && length <= 2147483647) && 1 <= length) && p == 0) && length <= unknown-#length-unknown[p]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length * sizeof(char)) := 0])) || ((((\valid[p] == 1 && 1 <= p) && length + p <= unknown-#length-unknown[p]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length * sizeof(char)) := 0]) && 0 <= length) [2020-12-01 18:11:45,227 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_9b11e76e-1677-4205-89b5-e2b491a9389d/bin/ukojak/witness.graphml [2020-12-01 18:11:45,235 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 18:11:45,237 INFO L168 Benchmark]: Toolchain (without parser) took 23956.15 ms. Allocated memory was 100.7 MB in the beginning and 272.6 MB in the end (delta: 172.0 MB). Free memory was 70.5 MB in the beginning and 159.0 MB in the end (delta: -88.5 MB). Peak memory consumption was 83.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:11:45,238 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 100.7 MB. Free memory is still 58.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:11:45,239 INFO L168 Benchmark]: CACSL2BoogieTranslator took 922.81 ms. Allocated memory was 100.7 MB in the beginning and 130.0 MB in the end (delta: 29.4 MB). Free memory was 70.5 MB in the beginning and 95.7 MB in the end (delta: -25.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 18:11:45,241 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.55 ms. Allocated memory is still 130.0 MB. Free memory was 95.7 MB in the beginning and 94.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:11:45,242 INFO L168 Benchmark]: Boogie Preprocessor took 61.98 ms. Allocated memory is still 130.0 MB. Free memory was 94.3 MB in the beginning and 93.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:11:45,244 INFO L168 Benchmark]: RCFGBuilder took 635.41 ms. Allocated memory is still 130.0 MB. Free memory was 93.1 MB in the beginning and 75.4 MB in the end (delta: 17.7 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-01 18:11:45,245 INFO L168 Benchmark]: CodeCheck took 22101.06 ms. Allocated memory was 130.0 MB in the beginning and 272.6 MB in the end (delta: 142.6 MB). Free memory was 75.4 MB in the beginning and 162.1 MB in the end (delta: -86.7 MB). Peak memory consumption was 56.5 MB. Max. memory is 16.1 GB. [2020-12-01 18:11:45,245 INFO L168 Benchmark]: Witness Printer took 151.11 ms. Allocated memory is still 272.6 MB. Free memory was 162.1 MB in the beginning and 159.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 18:11:45,254 INFO L339 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, 11 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 21.5s, OverallIterations: 16, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 122880 SDtfs, 57344 SDslu, 66048 SDs, 0 SdLazy, 403386 SolverSat, 164946 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1441 GetRequests, 1242 SyntacticMatches, 33 SemanticMatches, 166 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10230 ImplicationChecksByTransitivity, 18.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.8s InterpolantComputationTime, 137 NumberOfCodeBlocks, 137 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 12084 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 44/94 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 517]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 517]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 519]: 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: 519]: Loop Invariant [2020-12-01 18:11:45,262 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:11:45,263 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid - InvariantResult [Line: 516]: Loop Invariant [2020-12-01 18:11:45,265 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:11:45,268 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:11:45,269 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:11:45,271 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:11:45,271 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:11:45,272 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:11:45,274 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:11:45,288 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:11:45,289 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:11:45,289 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-12-01 18:11:45,290 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-12-01 18:11:45,290 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: ((((\valid[p] == 1 && 2 <= p) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length * sizeof(char)) := 0]) && 4294967296 * ((length + p + unknown-#length-unknown[p] * -1 + 4294967295) / 4294967296) <= length) || (((((\valid[p] == 1 && length <= 2147483647) && 1 <= length) && p == 0) && length <= unknown-#length-unknown[p]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length * sizeof(char)) := 0])) || ((((\valid[p] == 1 && 1 <= p) && length + p <= unknown-#length-unknown[p]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (length * sizeof(char)) := 0]) && 0 <= length) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 100.7 MB. Free memory is still 58.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 922.81 ms. Allocated memory was 100.7 MB in the beginning and 130.0 MB in the end (delta: 29.4 MB). Free memory was 70.5 MB in the beginning and 95.7 MB in the end (delta: -25.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 70.55 ms. Allocated memory is still 130.0 MB. Free memory was 95.7 MB in the beginning and 94.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.98 ms. Allocated memory is still 130.0 MB. Free memory was 94.3 MB in the beginning and 93.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 635.41 ms. Allocated memory is still 130.0 MB. Free memory was 93.1 MB in the beginning and 75.4 MB in the end (delta: 17.7 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * CodeCheck took 22101.06 ms. Allocated memory was 130.0 MB in the beginning and 272.6 MB in the end (delta: 142.6 MB). Free memory was 75.4 MB in the beginning and 162.1 MB in the end (delta: -86.7 MB). Peak memory consumption was 56.5 MB. Max. memory is 16.1 GB. * Witness Printer took 151.11 ms. Allocated memory is still 272.6 MB. Free memory was 162.1 MB in the beginning and 159.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - 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 #length - 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 main_old_#valid - 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 #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 #length - 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...