./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_026b1110-5e9a-488a-80d0-eef5ddb16019/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_026b1110-5e9a-488a-80d0-eef5ddb16019/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_026b1110-5e9a-488a-80d0-eef5ddb16019/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_026b1110-5e9a-488a-80d0-eef5ddb16019/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cbzero-alloca-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_026b1110-5e9a-488a-80d0-eef5ddb16019/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_026b1110-5e9a-488a-80d0-eef5ddb16019/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 [2020-11-30 00:15:09,743 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:15:09,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:15:09,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:15:09,844 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:15:09,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:15:09,849 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:15:09,852 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:15:09,859 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:15:09,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:15:09,864 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:15:09,866 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:15:09,867 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:15:09,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:15:09,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:15:09,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:15:09,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:15:09,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:15:09,897 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:15:09,910 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:15:09,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:15:09,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:15:09,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:15:09,920 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:15:09,925 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:15:09,925 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:15:09,926 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:15:09,928 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:15:09,929 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:15:09,931 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:15:09,931 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:15:09,933 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:15:09,935 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:15:09,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:15:09,938 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:15:09,939 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:15:09,940 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:15:09,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:15:09,941 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:15:09,943 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:15:09,944 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:15:09,945 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_026b1110-5e9a-488a-80d0-eef5ddb16019/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-11-30 00:15:09,977 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:15:09,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:15:09,979 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:15:09,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:15:09,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:15:09,981 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:15:09,981 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:15:09,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:15:09,982 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:15:09,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:15:09,982 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-30 00:15:09,982 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-30 00:15:09,983 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-30 00:15:09,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:15:09,983 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:15:09,984 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:15:09,984 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-30 00:15:09,984 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-30 00:15:09,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:15:09,985 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:15:09,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 00:15:09,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:15:09,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:15:09,986 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-30 00:15:09,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:15:09,987 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_026b1110-5e9a-488a-80d0-eef5ddb16019/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_026b1110-5e9a-488a-80d0-eef5ddb16019/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 822411a57a10ce043cb0121fce52bdc7e9506783 [2020-11-30 00:15:10,397 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:15:10,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:15:10,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:15:10,453 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:15:10,454 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:15:10,456 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_026b1110-5e9a-488a-80d0-eef5ddb16019/bin/ukojak/../../sv-benchmarks/c/array-memsafety/openbsd_cbzero-alloca-2.i [2020-11-30 00:15:10,561 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_026b1110-5e9a-488a-80d0-eef5ddb16019/bin/ukojak/data/188ca2d9c/a936b565919440daadfc2104458e0a4c/FLAGaaa7cb7f4 [2020-11-30 00:15:11,375 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:15:11,376 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_026b1110-5e9a-488a-80d0-eef5ddb16019/sv-benchmarks/c/array-memsafety/openbsd_cbzero-alloca-2.i [2020-11-30 00:15:11,401 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_026b1110-5e9a-488a-80d0-eef5ddb16019/bin/ukojak/data/188ca2d9c/a936b565919440daadfc2104458e0a4c/FLAGaaa7cb7f4 [2020-11-30 00:15:11,624 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_026b1110-5e9a-488a-80d0-eef5ddb16019/bin/ukojak/data/188ca2d9c/a936b565919440daadfc2104458e0a4c [2020-11-30 00:15:11,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:15:11,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:15:11,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:15:11,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:15:11,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:15:11,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:15:11" (1/1) ... [2020-11-30 00:15:11,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38a348cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:15:11, skipping insertion in model container [2020-11-30 00:15:11,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:15:11" (1/1) ... [2020-11-30 00:15:11,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:15:11,723 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:15:12,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:15:12,210 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:15:12,283 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:15:12,365 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:15:12,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:15:12 WrapperNode [2020-11-30 00:15:12,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:15:12,367 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:15:12,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:15:12,368 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:15:12,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:15:12" (1/1) ... [2020-11-30 00:15:12,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:15:12" (1/1) ... [2020-11-30 00:15:12,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:15:12,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:15:12,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:15:12,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:15:12,433 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:15:12" (1/1) ... [2020-11-30 00:15:12,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:15:12" (1/1) ... [2020-11-30 00:15:12,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:15:12" (1/1) ... [2020-11-30 00:15:12,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:15:12" (1/1) ... [2020-11-30 00:15:12,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:15:12" (1/1) ... [2020-11-30 00:15:12,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:15:12" (1/1) ... [2020-11-30 00:15:12,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:15:12" (1/1) ... [2020-11-30 00:15:12,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:15:12,453 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:15:12,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:15:12,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:15:12,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:15:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_026b1110-5e9a-488a-80d0-eef5ddb16019/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 [2020-11-30 00:15:12,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:15:12,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:15:12,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:15:12,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:15:12,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:15:13,159 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:15:13,161 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-30 00:15:13,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:15:13 BoogieIcfgContainer [2020-11-30 00:15:13,165 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:15:13,166 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-30 00:15:13,166 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-30 00:15:13,179 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-30 00:15:13,180 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:15:13" (1/1) ... [2020-11-30 00:15:13,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:15:13,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:15:13,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2020-11-30 00:15:13,229 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-11-30 00:15:13,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-30 00:15:13,232 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:15:13,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:15:13,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:15:13,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:15:13,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2020-11-30 00:15:13,518 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-11-30 00:15:13,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 00:15:13,518 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:15:13,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:15:13,573 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:15:13,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:15:13,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2020-11-30 00:15:13,582 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-11-30 00:15:13,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 00:15:13,584 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:15:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:15:13,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:15:13,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:15:13,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2020-11-30 00:15:13,835 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2020-11-30 00:15:13,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 00:15:13,836 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:15:13,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:15:13,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:15:14,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:15:14,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 18 states and 25 transitions. [2020-11-30 00:15:14,566 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2020-11-30 00:15:14,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 00:15:14,567 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:15:14,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:15:14,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:15:15,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:15:15,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 20 states and 30 transitions. [2020-11-30 00:15:15,866 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 30 transitions. [2020-11-30 00:15:15,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 00:15:15,869 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:15:15,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:15:15,946 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 00:15:16,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:15:16,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 20 states and 29 transitions. [2020-11-30 00:15:16,231 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 29 transitions. [2020-11-30 00:15:16,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 00:15:16,232 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:15:16,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:15:16,960 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:15:19,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:15:19,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 26 states and 42 transitions. [2020-11-30 00:15:19,434 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 42 transitions. [2020-11-30 00:15:19,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 00:15:19,435 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:15:19,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:15:19,566 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 00:15:21,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:15:21,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 32 states and 57 transitions. [2020-11-30 00:15:21,512 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 57 transitions. [2020-11-30 00:15:21,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 00:15:21,513 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:15:21,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:15:21,563 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-11-30 00:15:21,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:15:21,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 28 states and 50 transitions. [2020-11-30 00:15:21,918 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 50 transitions. [2020-11-30 00:15:21,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 00:15:21,919 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:15:21,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:15:22,718 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:15:25,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:15:25,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 32 states and 67 transitions. [2020-11-30 00:15:25,928 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 67 transitions. [2020-11-30 00:15:25,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 00:15:25,929 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:15:25,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:15:25,994 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-11-30 00:15:26,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:15:26,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 33 states and 70 transitions. [2020-11-30 00:15:26,613 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 70 transitions. [2020-11-30 00:15:26,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 00:15:26,614 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:15:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:15:26,650 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-11-30 00:15:27,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:15:27,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 35 states and 74 transitions. [2020-11-30 00:15:27,912 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 74 transitions. [2020-11-30 00:15:27,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:15:27,913 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:15:27,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:15:28,773 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:15:30,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:15:30,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 36 states and 76 transitions. [2020-11-30 00:15:30,297 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 76 transitions. [2020-11-30 00:15:30,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:15:30,298 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:15:30,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:15:30,378 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:15:31,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:15:31,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 14 states and 19 transitions. [2020-11-30 00:15:31,276 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 19 transitions. [2020-11-30 00:15:31,276 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:15:31,276 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 15 iterations. [2020-11-30 00:15:31,285 INFO L765 CodeCheckObserver]: All specifications hold 3 specifications checked. All of them hold [2020-11-30 00:15:31,661 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2020-11-30 00:15:31,813 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2020-11-30 00:15:31,892 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-11-30 00:15:31,900 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 00:15:31,908 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 00:15:31,910 INFO L569 CodeCheckObserver]: Invariant with dag size 37 [2020-11-30 00:15:31,919 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 00:15:31,919 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 00:15:31,920 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 00:15:31,921 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 00:15:31,922 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 00:15:31,927 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 00:15:31,932 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 00:15:31,932 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 00:15:31,932 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 00:15:31,933 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 00:15:31,934 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 00:15:31,935 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 00:15:31,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 30.11 12:15:31 ImpRootNode [2020-11-30 00:15:31,937 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-30 00:15:31,939 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:15:31,940 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:15:31,940 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:15:31,949 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:15:13" (3/4) ... [2020-11-30 00:15:31,953 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:15:31,976 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-11-30 00:15:31,979 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-30 00:15:31,980 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-30 00:15:32,019 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2020-11-30 00:15:32,020 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) [2020-11-30 00:15:32,056 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_026b1110-5e9a-488a-80d0-eef5ddb16019/bin/ukojak/witness.graphml [2020-11-30 00:15:32,063 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:15:32,065 INFO L168 Benchmark]: Toolchain (without parser) took 20428.11 ms. Allocated memory was 96.5 MB in the beginning and 207.6 MB in the end (delta: 111.1 MB). Free memory was 68.4 MB in the beginning and 134.4 MB in the end (delta: -66.0 MB). Peak memory consumption was 44.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:15:32,066 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 96.5 MB. Free memory is still 55.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:15:32,067 INFO L168 Benchmark]: CACSL2BoogieTranslator took 725.00 ms. Allocated memory is still 96.5 MB. Free memory was 68.2 MB in the beginning and 62.6 MB in the end (delta: 5.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:15:32,068 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.40 ms. Allocated memory is still 96.5 MB. Free memory was 62.6 MB in the beginning and 60.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:15:32,069 INFO L168 Benchmark]: Boogie Preprocessor took 30.96 ms. Allocated memory is still 96.5 MB. Free memory was 60.9 MB in the beginning and 59.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:15:32,069 INFO L168 Benchmark]: RCFGBuilder took 711.82 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 59.8 MB in the beginning and 93.3 MB in the end (delta: -33.5 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:15:32,072 INFO L168 Benchmark]: CodeCheck took 18771.24 ms. Allocated memory was 117.4 MB in the beginning and 207.6 MB in the end (delta: 90.2 MB). Free memory was 93.3 MB in the beginning and 137.5 MB in the end (delta: -44.2 MB). Peak memory consumption was 123.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:15:32,077 INFO L168 Benchmark]: Witness Printer took 124.44 ms. Allocated memory is still 207.6 MB. Free memory was 137.5 MB in the beginning and 134.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:15:32,084 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: 18.0s, OverallIterations: 15, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 61440 SDtfs, 28672 SDslu, 33024 SDs, 0 SdLazy, 200458 SolverSat, 82450 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1283 GetRequests, 1092 SyntacticMatches, 31 SemanticMatches, 160 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9045 ImplicationChecksByTransitivity, 15.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 10990 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 8 PerfectInterpolantSequences, 29/76 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 [2020-11-30 00:15:32,090 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 00:15:32,090 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid - InvariantResult [Line: 516]: Loop Invariant [2020-11-30 00:15:32,096 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 00:15:32,099 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 00:15:32,099 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 00:15:32,101 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 00:15:32,101 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 00:15:32,101 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 00:15:32,103 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 00:15:32,111 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 00:15:32,111 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 00:15:32,111 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 00:15:32,116 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 00:15:32,116 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 0.46 ms. Allocated memory is still 96.5 MB. Free memory is still 55.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 725.00 ms. Allocated memory is still 96.5 MB. Free memory was 68.2 MB in the beginning and 62.6 MB in the end (delta: 5.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.40 ms. Allocated memory is still 96.5 MB. Free memory was 62.6 MB in the beginning and 60.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.96 ms. Allocated memory is still 96.5 MB. Free memory was 60.9 MB in the beginning and 59.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 711.82 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 59.8 MB in the beginning and 93.3 MB in the end (delta: -33.5 MB). Peak memory consumption was 20.4 MB. Max. memory is 16.1 GB. * CodeCheck took 18771.24 ms. Allocated memory was 117.4 MB in the beginning and 207.6 MB in the end (delta: 90.2 MB). Free memory was 93.3 MB in the beginning and 137.5 MB in the end (delta: -44.2 MB). Peak memory consumption was 123.7 MB. Max. memory is 16.1 GB. * Witness Printer took 124.44 ms. Allocated memory is still 207.6 MB. Free memory was 137.5 MB in the beginning and 134.4 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...