./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e6ef9178-6022-4ebf-9270-9cc0077fd499/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e6ef9178-6022-4ebf-9270-9cc0077fd499/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e6ef9178-6022-4ebf-9270-9cc0077fd499/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e6ef9178-6022-4ebf-9270-9cc0077fd499/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cbzero-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_e6ef9178-6022-4ebf-9270-9cc0077fd499/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e6ef9178-6022-4ebf-9270-9cc0077fd499/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-a4ecdab [2020-11-28 04:32:30,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:32:30,306 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:32:30,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:32:30,359 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:32:30,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:32:30,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:32:30,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:32:30,374 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:32:30,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:32:30,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:32:30,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:32:30,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:32:30,380 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:32:30,381 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:32:30,383 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:32:30,384 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:32:30,385 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:32:30,387 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:32:30,390 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:32:30,391 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:32:30,393 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:32:30,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:32:30,395 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:32:30,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:32:30,399 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:32:30,400 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:32:30,411 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:32:30,411 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:32:30,412 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:32:30,413 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:32:30,413 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:32:30,414 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:32:30,415 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:32:30,416 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:32:30,417 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:32:30,418 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:32:30,418 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:32:30,418 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:32:30,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:32:30,420 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:32:30,422 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e6ef9178-6022-4ebf-9270-9cc0077fd499/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-11-28 04:32:30,464 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:32:30,464 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:32:30,466 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:32:30,466 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:32:30,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:32:30,467 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:32:30,467 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:32:30,467 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:32:30,467 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:32:30,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:32:30,469 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 04:32:30,469 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 04:32:30,469 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 04:32:30,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:32:30,470 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:32:30,470 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:32:30,470 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:32:30,470 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:32:30,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:32:30,471 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:32:30,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:32:30,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:32:30,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:32:30,476 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:32:30,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:32:30,476 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_e6ef9178-6022-4ebf-9270-9cc0077fd499/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e6ef9178-6022-4ebf-9270-9cc0077fd499/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 822411a57a10ce043cb0121fce52bdc7e9506783 [2020-11-28 04:32:30,718 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:32:30,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:32:30,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:32:30,761 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:32:30,762 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:32:30,763 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e6ef9178-6022-4ebf-9270-9cc0077fd499/bin/ukojak/../../sv-benchmarks/c/array-memsafety/openbsd_cbzero-alloca-2.i [2020-11-28 04:32:30,841 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e6ef9178-6022-4ebf-9270-9cc0077fd499/bin/ukojak/data/59b3f3d5a/f60158d4f11e4dd5b1cd3c275ff8ff12/FLAGc50d7105d [2020-11-28 04:32:31,368 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:32:31,369 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e6ef9178-6022-4ebf-9270-9cc0077fd499/sv-benchmarks/c/array-memsafety/openbsd_cbzero-alloca-2.i [2020-11-28 04:32:31,382 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e6ef9178-6022-4ebf-9270-9cc0077fd499/bin/ukojak/data/59b3f3d5a/f60158d4f11e4dd5b1cd3c275ff8ff12/FLAGc50d7105d [2020-11-28 04:32:31,682 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e6ef9178-6022-4ebf-9270-9cc0077fd499/bin/ukojak/data/59b3f3d5a/f60158d4f11e4dd5b1cd3c275ff8ff12 [2020-11-28 04:32:31,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:32:31,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:32:31,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:32:31,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:32:31,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:32:31,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:32:31" (1/1) ... [2020-11-28 04:32:31,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ff15624 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:31, skipping insertion in model container [2020-11-28 04:32:31,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:32:31" (1/1) ... [2020-11-28 04:32:31,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:32:31,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:32:31,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:32:31,979 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:32:32,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:32:32,086 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:32:32,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:32 WrapperNode [2020-11-28 04:32:32,088 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:32:32,090 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:32:32,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:32:32,091 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:32:32,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:32" (1/1) ... [2020-11-28 04:32:32,123 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:32" (1/1) ... [2020-11-28 04:32:32,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:32:32,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:32:32,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:32:32,148 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:32:32,155 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:32" (1/1) ... [2020-11-28 04:32:32,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:32" (1/1) ... [2020-11-28 04:32:32,158 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:32" (1/1) ... [2020-11-28 04:32:32,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:32" (1/1) ... [2020-11-28 04:32:32,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:32" (1/1) ... [2020-11-28 04:32:32,166 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:32" (1/1) ... [2020-11-28 04:32:32,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:32" (1/1) ... [2020-11-28 04:32:32,174 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:32:32,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:32:32,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:32:32,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:32:32,181 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e6ef9178-6022-4ebf-9270-9cc0077fd499/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 [2020-11-28 04:32:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 04:32:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:32:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 04:32:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:32:32,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:32:32,679 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:32:32,679 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-28 04:32:32,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:32 BoogieIcfgContainer [2020-11-28 04:32:32,681 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:32:32,682 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:32:32,682 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:32:32,708 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:32:32,709 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:32" (1/1) ... [2020-11-28 04:32:32,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:32:32,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:32,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2020-11-28 04:32:32,782 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-11-28 04:32:32,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:32:32,783 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:32,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:32,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:32,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2020-11-28 04:32:32,935 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-11-28 04:32:32,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:32:32,936 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:32,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:32,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:32,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:32,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2020-11-28 04:32:32,980 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-11-28 04:32:32,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:32:32,981 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:33,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:33,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:33,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:33,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2020-11-28 04:32:33,179 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2020-11-28 04:32:33,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:32:33,180 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:33,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:33,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:33,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2020-11-28 04:32:33,746 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2020-11-28 04:32:33,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:32:33,747 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:33,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:33,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:34,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:34,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2020-11-28 04:32:34,688 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2020-11-28 04:32:34,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:32:34,690 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:34,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:35,234 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:37,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:37,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 26 states and 44 transitions. [2020-11-28 04:32:37,292 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 44 transitions. [2020-11-28 04:32:37,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:32:37,292 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:37,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:37,315 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:32:37,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:37,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 26 states and 43 transitions. [2020-11-28 04:32:37,574 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 43 transitions. [2020-11-28 04:32:37,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:32:37,575 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:37,718 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:32:39,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:39,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 32 states and 58 transitions. [2020-11-28 04:32:39,487 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 58 transitions. [2020-11-28 04:32:39,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:32:39,487 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:39,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:40,229 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:42,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:42,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 36 states and 76 transitions. [2020-11-28 04:32:42,774 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 76 transitions. [2020-11-28 04:32:42,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:32:42,775 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:42,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:42,796 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-11-28 04:32:43,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:43,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 36 states and 75 transitions. [2020-11-28 04:32:43,218 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 75 transitions. [2020-11-28 04:32:43,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:32:43,219 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:43,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:43,246 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-11-28 04:32:43,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:43,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 37 states and 78 transitions. [2020-11-28 04:32:43,734 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 78 transitions. [2020-11-28 04:32:43,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:32:43,735 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:43,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:43,762 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-11-28 04:32:44,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:44,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 39 states and 82 transitions. [2020-11-28 04:32:44,725 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 82 transitions. [2020-11-28 04:32:44,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:32:44,726 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:44,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:44,748 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-28 04:32:45,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:45,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 39 states and 81 transitions. [2020-11-28 04:32:45,191 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 81 transitions. [2020-11-28 04:32:45,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:32:45,192 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:46,099 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:47,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:47,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 40 states and 83 transitions. [2020-11-28 04:32:47,307 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 83 transitions. [2020-11-28 04:32:47,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:32:47,308 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:47,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:47,369 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:48,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:48,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 14 states and 19 transitions. [2020-11-28 04:32:48,179 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 19 transitions. [2020-11-28 04:32:48,179 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:32:48,179 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 16 iterations. [2020-11-28 04:32:48,184 INFO L765 CodeCheckObserver]: All specifications hold 3 specifications checked. All of them hold [2020-11-28 04:32:48,360 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2020-11-28 04:32:48,508 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-11-28 04:32:48,513 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:32:48,516 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:32:48,517 INFO L569 CodeCheckObserver]: Invariant with dag size 37 [2020-11-28 04:32:48,520 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:32:48,520 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:32:48,520 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:32:48,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:32:48,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:32:48,521 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:32:48,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:32:48,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:32:48,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:32:48,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:32:48,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:32:48,525 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:32:48,525 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:32:48 ImpRootNode [2020-11-28 04:32:48,526 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:32:48,526 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:32:48,526 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:32:48,526 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:32:48,527 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:32" (3/4) ... [2020-11-28 04:32:48,530 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:32:48,539 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-28 04:32:48,539 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 04:32:48,539 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 04:32:48,564 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2020-11-28 04:32:48,564 WARN L221 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) [2020-11-28 04:32:48,586 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e6ef9178-6022-4ebf-9270-9cc0077fd499/bin/ukojak/witness.graphml [2020-11-28 04:32:48,586 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:32:48,588 INFO L168 Benchmark]: Toolchain (without parser) took 16901.55 ms. Allocated memory was 100.7 MB in the beginning and 226.5 MB in the end (delta: 125.8 MB). Free memory was 74.5 MB in the beginning and 122.6 MB in the end (delta: -48.1 MB). Peak memory consumption was 78.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:48,589 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 83.9 MB. Free memory is still 57.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:32:48,590 INFO L168 Benchmark]: CACSL2BoogieTranslator took 401.21 ms. Allocated memory is still 100.7 MB. Free memory was 74.5 MB in the beginning and 54.3 MB in the end (delta: 20.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:48,590 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.03 ms. Allocated memory is still 100.7 MB. Free memory was 54.3 MB in the beginning and 52.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:32:48,591 INFO L168 Benchmark]: Boogie Preprocessor took 26.51 ms. Allocated memory is still 100.7 MB. Free memory was 52.6 MB in the beginning and 51.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:48,592 INFO L168 Benchmark]: RCFGBuilder took 507.15 ms. Allocated memory is still 100.7 MB. Free memory was 51.4 MB in the beginning and 34.0 MB in the end (delta: 17.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:48,593 INFO L168 Benchmark]: CodeCheck took 15843.58 ms. Allocated memory was 100.7 MB in the beginning and 226.5 MB in the end (delta: 125.8 MB). Free memory was 34.0 MB in the beginning and 125.7 MB in the end (delta: -91.8 MB). Peak memory consumption was 36.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:48,594 INFO L168 Benchmark]: Witness Printer took 60.37 ms. Allocated memory is still 226.5 MB. Free memory was 125.7 MB in the beginning and 122.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:32:48,598 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: 15.4s, 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, 425938 SolverSat, 172154 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1437 GetRequests, 1242 SyntacticMatches, 31 SemanticMatches, 164 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9414 ImplicationChecksByTransitivity, 13.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 137 NumberOfCodeBlocks, 137 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 122 ConstructedInterpolants, 0 QuantifiedInterpolants, 11783 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 [2020-11-28 04:32:48,600 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:32:48,601 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid - InvariantResult [Line: 516]: Loop Invariant [2020-11-28 04:32:48,602 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:32:48,602 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:32:48,602 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:32:48,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:32:48,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:32:48,603 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:32:48,604 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:32:48,604 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:32:48,605 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:32:48,605 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:32:48,605 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:32:48,605 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 0.24 ms. Allocated memory is still 83.9 MB. Free memory is still 57.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 401.21 ms. Allocated memory is still 100.7 MB. Free memory was 74.5 MB in the beginning and 54.3 MB in the end (delta: 20.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.03 ms. Allocated memory is still 100.7 MB. Free memory was 54.3 MB in the beginning and 52.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.51 ms. Allocated memory is still 100.7 MB. Free memory was 52.6 MB in the beginning and 51.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 507.15 ms. Allocated memory is still 100.7 MB. Free memory was 51.4 MB in the beginning and 34.0 MB in the end (delta: 17.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * CodeCheck took 15843.58 ms. Allocated memory was 100.7 MB in the beginning and 226.5 MB in the end (delta: 125.8 MB). Free memory was 34.0 MB in the beginning and 125.7 MB in the end (delta: -91.8 MB). Peak memory consumption was 36.8 MB. Max. memory is 16.1 GB. * Witness Printer took 60.37 ms. Allocated memory is still 226.5 MB. Free memory was 125.7 MB in the beginning and 122.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 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...