./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/scopes4-1.c --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_c09cc85f-12bf-4401-8424-1b0af55f6b3b/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c09cc85f-12bf-4401-8424-1b0af55f6b3b/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c09cc85f-12bf-4401-8424-1b0af55f6b3b/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c09cc85f-12bf-4401-8424-1b0af55f6b3b/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes4-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c09cc85f-12bf-4401-8424-1b0af55f6b3b/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c09cc85f-12bf-4401-8424-1b0af55f6b3b/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 87dcbb1d4539995e5aba39e6053775ca0fac811e ................................................................................................................................................................................................................................................................................................ 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 00:35:50,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:35:50,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:35:50,225 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:35:50,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:35:50,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:35:50,238 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:35:50,243 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:35:50,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:35:50,255 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:35:50,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:35:50,259 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:35:50,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:35:50,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:35:50,266 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:35:50,269 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:35:50,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:35:50,272 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:35:50,280 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:35:50,288 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:35:50,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:35:50,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:35:50,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:35:50,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:35:50,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:35:50,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:35:50,306 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:35:50,307 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:35:50,307 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:35:50,309 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:35:50,309 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:35:50,310 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:35:50,311 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:35:50,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:35:50,313 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:35:50,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:35:50,314 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:35:50,314 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:35:50,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:35:50,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:35:50,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:35:50,317 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c09cc85f-12bf-4401-8424-1b0af55f6b3b/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-11-30 00:35:50,342 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:35:50,343 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:35:50,344 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:35:50,344 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:35:50,345 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:35:50,345 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:35:50,345 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:35:50,345 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:35:50,346 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:35:50,346 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:35:50,346 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-30 00:35:50,347 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-30 00:35:50,347 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-30 00:35:50,347 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:35:50,347 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:35:50,348 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:35:50,348 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-30 00:35:50,348 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-30 00:35:50,348 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:35:50,349 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:35:50,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 00:35:50,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:35:50,350 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:35:50,350 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-30 00:35:50,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:35:50,350 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_c09cc85f-12bf-4401-8424-1b0af55f6b3b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c09cc85f-12bf-4401-8424-1b0af55f6b3b/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87dcbb1d4539995e5aba39e6053775ca0fac811e [2020-11-30 00:35:50,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:35:50,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:35:50,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:35:50,658 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:35:50,659 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:35:50,661 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c09cc85f-12bf-4401-8424-1b0af55f6b3b/bin/ukojak/../../sv-benchmarks/c/memsafety-ext3/scopes4-1.c [2020-11-30 00:35:50,759 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c09cc85f-12bf-4401-8424-1b0af55f6b3b/bin/ukojak/data/e4b94543e/e7145920c53340b0b817453fe7594b96/FLAGe1d3a483f [2020-11-30 00:35:51,299 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:35:51,300 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c09cc85f-12bf-4401-8424-1b0af55f6b3b/sv-benchmarks/c/memsafety-ext3/scopes4-1.c [2020-11-30 00:35:51,307 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c09cc85f-12bf-4401-8424-1b0af55f6b3b/bin/ukojak/data/e4b94543e/e7145920c53340b0b817453fe7594b96/FLAGe1d3a483f [2020-11-30 00:35:51,670 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c09cc85f-12bf-4401-8424-1b0af55f6b3b/bin/ukojak/data/e4b94543e/e7145920c53340b0b817453fe7594b96 [2020-11-30 00:35:51,673 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:35:51,674 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:35:51,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:35:51,677 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:35:51,681 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:35:51,682 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:35:51" (1/1) ... [2020-11-30 00:35:51,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61477e96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:51, skipping insertion in model container [2020-11-30 00:35:51,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:35:51" (1/1) ... [2020-11-30 00:35:51,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:35:51,706 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:35:51,871 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:35:51,905 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:35:51,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:35:51,952 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:35:51,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:51 WrapperNode [2020-11-30 00:35:51,953 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:35:51,955 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:35:51,955 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:35:51,956 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:35:51,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:51" (1/1) ... [2020-11-30 00:35:51,978 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:51" (1/1) ... [2020-11-30 00:35:52,012 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:35:52,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:35:52,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:35:52,014 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:35:52,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:51" (1/1) ... [2020-11-30 00:35:52,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:51" (1/1) ... [2020-11-30 00:35:52,044 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:51" (1/1) ... [2020-11-30 00:35:52,044 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:51" (1/1) ... [2020-11-30 00:35:52,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:51" (1/1) ... [2020-11-30 00:35:52,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:51" (1/1) ... [2020-11-30 00:35:52,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:51" (1/1) ... [2020-11-30 00:35:52,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:35:52,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:35:52,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:35:52,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:35:52,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c09cc85f-12bf-4401-8424-1b0af55f6b3b/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 00:35:52,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:35:52,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:35:52,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:35:52,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:35:52,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:35:52,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:35:52,614 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:35:52,614 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-30 00:35:52,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:35:52 BoogieIcfgContainer [2020-11-30 00:35:52,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:35:52,618 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-30 00:35:52,618 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-30 00:35:52,631 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-30 00:35:52,632 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:35:52" (1/1) ... [2020-11-30 00:35:52,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:35:52,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:35:52,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 10 states and 9 transitions. [2020-11-30 00:35:52,688 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2020-11-30 00:35:52,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-11-30 00:35:52,691 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:35:52,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:35:52,848 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 00:35:52,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:35:52,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 9 states and 8 transitions. [2020-11-30 00:35:52,908 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2020-11-30 00:35:52,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-11-30 00:35:52,908 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:35:52,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:35:53,010 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 00:35:53,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:35:53,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 8 states and 7 transitions. [2020-11-30 00:35:53,157 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-11-30 00:35:53,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-30 00:35:53,158 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:35:53,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:35:53,237 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 00:35:53,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:35:53,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 7 states and 6 transitions. [2020-11-30 00:35:53,291 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2020-11-30 00:35:53,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-30 00:35:53,291 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:35:53,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:35:53,400 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 00:35:53,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:35:53,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 6 states and 5 transitions. [2020-11-30 00:35:53,588 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2020-11-30 00:35:53,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 00:35:53,589 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:35:53,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:35:53,680 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 00:35:54,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:35:54,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 5 states and 4 transitions. [2020-11-30 00:35:54,142 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 4 transitions. [2020-11-30 00:35:54,142 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:35:54,142 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2020-11-30 00:35:54,150 INFO L765 CodeCheckObserver]: All specifications hold 5 specifications checked. All of them hold [2020-11-30 00:35:54,189 INFO L569 CodeCheckObserver]: Invariant with dag size 15 [2020-11-30 00:35:54,196 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 00:35:54,197 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 00:35:54,203 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 00:35:54,204 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 00:35:54,205 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-11-30 00:35:54,205 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 00:35:54,208 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 00:35:54,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 30.11 12:35:54 ImpRootNode [2020-11-30 00:35:54,209 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-30 00:35:54,211 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:35:54,211 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:35:54,211 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:35:54,213 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:35:52" (3/4) ... [2020-11-30 00:35:54,218 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:35:54,249 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-11-30 00:35:54,250 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 00:35:54,250 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-30 00:35:54,250 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:35:54,280 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(unknown-main_\old_#valid-unknown) == \valid && unknown-#length-unknown[arr] == 4096) && \valid[arr] == 1) && arr == 0 [2020-11-30 00:35:54,281 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2020-11-30 00:35:54,297 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c09cc85f-12bf-4401-8424-1b0af55f6b3b/bin/ukojak/witness.graphml [2020-11-30 00:35:54,298 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:35:54,300 INFO L168 Benchmark]: Toolchain (without parser) took 2624.33 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 66.9 MB in the beginning and 93.7 MB in the end (delta: -26.7 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:35:54,301 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 96.5 MB. Free memory is still 53.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:35:54,302 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.98 ms. Allocated memory is still 96.5 MB. Free memory was 66.7 MB in the beginning and 73.9 MB in the end (delta: -7.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:35:54,303 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.80 ms. Allocated memory is still 96.5 MB. Free memory was 73.9 MB in the beginning and 72.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:35:54,303 INFO L168 Benchmark]: Boogie Preprocessor took 52.48 ms. Allocated memory is still 96.5 MB. Free memory was 72.6 MB in the beginning and 71.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:35:54,304 INFO L168 Benchmark]: RCFGBuilder took 550.46 ms. Allocated memory is still 96.5 MB. Free memory was 71.5 MB in the beginning and 55.7 MB in the end (delta: 15.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:35:54,305 INFO L168 Benchmark]: CodeCheck took 1591.14 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 55.7 MB in the beginning and 52.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 27.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:35:54,306 INFO L168 Benchmark]: Witness Printer took 86.98 ms. Allocated memory is still 117.4 MB. Free memory was 51.5 MB in the beginning and 93.7 MB in the end (delta: -42.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:35:54,312 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, 10 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.4s, OverallIterations: 6, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 8 SDslu, 0 SDs, 0 SdLazy, 238 SolverSat, 130 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 95 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 6]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 6]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 16]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 18]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - InvariantResult [Line: 6]: Loop Invariant [2020-11-30 00:35:54,324 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 00:35:54,325 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-30 00:35:54,326 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 00:35:54,328 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: ((\old(unknown-main_\old_#valid-unknown) == \valid && unknown-#length-unknown[arr] == 4096) && \valid[arr] == 1) && arr == 0 - InvariantResult [Line: 16]: Loop Invariant [2020-11-30 00:35:54,329 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 00:35:54,329 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 96.5 MB. Free memory is still 53.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 276.98 ms. Allocated memory is still 96.5 MB. Free memory was 66.7 MB in the beginning and 73.9 MB in the end (delta: -7.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.80 ms. Allocated memory is still 96.5 MB. Free memory was 73.9 MB in the beginning and 72.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.48 ms. Allocated memory is still 96.5 MB. Free memory was 72.6 MB in the beginning and 71.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 550.46 ms. Allocated memory is still 96.5 MB. Free memory was 71.5 MB in the beginning and 55.7 MB in the end (delta: 15.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 1591.14 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 55.7 MB in the beginning and 52.2 MB in the end (delta: 3.5 MB). Peak memory consumption was 27.1 MB. Max. memory is 16.1 GB. * Witness Printer took 86.98 ms. Allocated memory is still 117.4 MB. Free memory was 51.5 MB in the beginning and 93.7 MB in the end (delta: -42.2 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 #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid RESULT: Ultimate proved your program to be correct! Received shutdown request...