./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 f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6292a565-7588-439d-bf5a-a43363a4ec0b/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6292a565-7588-439d-bf5a-a43363a4ec0b/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6292a565-7588-439d-bf5a-a43363a4ec0b/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6292a565-7588-439d-bf5a-a43363a4ec0b/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/scopes4-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6292a565-7588-439d-bf5a-a43363a4ec0b/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6292a565-7588-439d-bf5a-a43363a4ec0b/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 0.1.25-f470102 [2019-12-01 21:54:33,705 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-01 21:54:33,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-01 21:54:33,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-01 21:54:33,714 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-01 21:54:33,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-01 21:54:33,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-01 21:54:33,717 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-01 21:54:33,718 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-01 21:54:33,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-01 21:54:33,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-01 21:54:33,720 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-01 21:54:33,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-01 21:54:33,721 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-01 21:54:33,722 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-01 21:54:33,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-01 21:54:33,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-01 21:54:33,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-01 21:54:33,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-01 21:54:33,726 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-01 21:54:33,727 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-01 21:54:33,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-01 21:54:33,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-01 21:54:33,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-01 21:54:33,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-01 21:54:33,731 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-01 21:54:33,731 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-01 21:54:33,732 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-01 21:54:33,732 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-01 21:54:33,732 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-01 21:54:33,733 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-01 21:54:33,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-01 21:54:33,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-01 21:54:33,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-01 21:54:33,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-01 21:54:33,735 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-01 21:54:33,735 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-01 21:54:33,735 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-01 21:54:33,735 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-01 21:54:33,736 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-01 21:54:33,736 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-01 21:54:33,737 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6292a565-7588-439d-bf5a-a43363a4ec0b/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2019-12-01 21:54:33,746 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-01 21:54:33,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-01 21:54:33,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-01 21:54:33,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-01 21:54:33,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-01 21:54:33,747 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-01 21:54:33,747 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-01 21:54:33,747 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-01 21:54:33,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-01 21:54:33,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-01 21:54:33,748 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-01 21:54:33,748 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-01 21:54:33,748 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2019-12-01 21:54:33,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-01 21:54:33,748 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-01 21:54:33,748 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-01 21:54:33,749 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-12-01 21:54:33,749 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-12-01 21:54:33,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-01 21:54:33,749 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-01 21:54:33,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-01 21:54:33,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-01 21:54:33,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-01 21:54:33,750 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-12-01 21:54:33,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-01 21:54:33,750 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_6292a565-7588-439d-bf5a-a43363a4ec0b/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 [2019-12-01 21:54:33,851 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-01 21:54:33,861 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-01 21:54:33,864 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-01 21:54:33,865 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-01 21:54:33,865 INFO L275 PluginConnector]: CDTParser initialized [2019-12-01 21:54:33,866 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6292a565-7588-439d-bf5a-a43363a4ec0b/bin/ukojak/../../sv-benchmarks/c/memsafety-ext3/scopes4-1.c [2019-12-01 21:54:33,911 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6292a565-7588-439d-bf5a-a43363a4ec0b/bin/ukojak/data/330fd46d5/950cc29d03304234af79ab90ebf7408c/FLAG673af82c2 [2019-12-01 21:54:34,228 INFO L306 CDTParser]: Found 1 translation units. [2019-12-01 21:54:34,229 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6292a565-7588-439d-bf5a-a43363a4ec0b/sv-benchmarks/c/memsafety-ext3/scopes4-1.c [2019-12-01 21:54:34,232 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6292a565-7588-439d-bf5a-a43363a4ec0b/bin/ukojak/data/330fd46d5/950cc29d03304234af79ab90ebf7408c/FLAG673af82c2 [2019-12-01 21:54:34,242 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6292a565-7588-439d-bf5a-a43363a4ec0b/bin/ukojak/data/330fd46d5/950cc29d03304234af79ab90ebf7408c [2019-12-01 21:54:34,245 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-01 21:54:34,246 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-01 21:54:34,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-01 21:54:34,247 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-01 21:54:34,249 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-01 21:54:34,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 09:54:34" (1/1) ... [2019-12-01 21:54:34,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34c8857b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:54:34, skipping insertion in model container [2019-12-01 21:54:34,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 09:54:34" (1/1) ... [2019-12-01 21:54:34,257 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-01 21:54:34,269 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-01 21:54:34,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 21:54:34,414 INFO L203 MainTranslator]: Completed pre-run [2019-12-01 21:54:34,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 21:54:34,439 INFO L208 MainTranslator]: Completed translation [2019-12-01 21:54:34,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:54:34 WrapperNode [2019-12-01 21:54:34,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-01 21:54:34,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-01 21:54:34,440 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-01 21:54:34,440 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-01 21:54:34,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:54:34" (1/1) ... [2019-12-01 21:54:34,453 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:54:34" (1/1) ... [2019-12-01 21:54:34,465 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-01 21:54:34,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-01 21:54:34,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-01 21:54:34,466 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-01 21:54:34,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:54:34" (1/1) ... [2019-12-01 21:54:34,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:54:34" (1/1) ... [2019-12-01 21:54:34,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:54:34" (1/1) ... [2019-12-01 21:54:34,473 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:54:34" (1/1) ... [2019-12-01 21:54:34,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:54:34" (1/1) ... [2019-12-01 21:54:34,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:54:34" (1/1) ... [2019-12-01 21:54:34,479 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:54:34" (1/1) ... [2019-12-01 21:54:34,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-01 21:54:34,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-01 21:54:34,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-01 21:54:34,481 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-01 21:54:34,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 09:54:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6292a565-7588-439d-bf5a-a43363a4ec0b/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 [2019-12-01 21:54:34,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-01 21:54:34,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-01 21:54:34,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-01 21:54:34,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-01 21:54:34,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-01 21:54:34,522 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-01 21:54:34,701 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-01 21:54:34,701 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-01 21:54:34,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 09:54:34 BoogieIcfgContainer [2019-12-01 21:54:34,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-01 21:54:34,702 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-12-01 21:54:34,702 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-12-01 21:54:34,709 INFO L275 PluginConnector]: CodeCheck initialized [2019-12-01 21:54:34,709 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 09:54:34" (1/1) ... [2019-12-01 21:54:34,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-01 21:54:34,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 21:54:34,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 10 states and 9 transitions. [2019-12-01 21:54:34,737 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 9 transitions. [2019-12-01 21:54:34,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-12-01 21:54:34,739 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 21:54:34,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 21:54:34,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 21:54:34,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 21:54:34,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 9 states and 8 transitions. [2019-12-01 21:54:34,859 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2019-12-01 21:54:34,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-12-01 21:54:34,860 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 21:54:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 21:54:34,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 21:54:34,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 21:54:34,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 8 states and 7 transitions. [2019-12-01 21:54:34,956 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2019-12-01 21:54:34,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-01 21:54:34,956 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 21:54:34,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 21:54:34,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 21:54:35,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 21:54:35,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 7 states and 6 transitions. [2019-12-01 21:54:35,005 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2019-12-01 21:54:35,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-01 21:54:35,005 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 21:54:35,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 21:54:35,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 21:54:35,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 21:54:35,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 6 states and 5 transitions. [2019-12-01 21:54:35,128 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2019-12-01 21:54:35,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-01 21:54:35,128 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 21:54:35,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 21:54:35,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 21:54:35,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 21:54:35,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 5 states and 4 transitions. [2019-12-01 21:54:35,319 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 4 transitions. [2019-12-01 21:54:35,319 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-01 21:54:35,319 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2019-12-01 21:54:35,326 INFO L765 CodeCheckObserver]: All specifications hold 5 specifications checked. All of them hold [2019-12-01 21:54:35,340 INFO L569 CodeCheckObserver]: Invariant with dag size 15 [2019-12-01 21:54:35,345 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-01 21:54:35,345 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-01 21:54:35,349 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-01 21:54:35,349 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-01 21:54:35,350 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2019-12-01 21:54:35,350 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-01 21:54:35,350 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-01 21:54:35,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 09:54:35 ImpRootNode [2019-12-01 21:54:35,351 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-12-01 21:54:35,351 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-01 21:54:35,352 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-01 21:54:35,352 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-01 21:54:35,352 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 09:54:34" (3/4) ... [2019-12-01 21:54:35,355 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-01 21:54:35,364 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2019-12-01 21:54:35,365 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-01 21:54:35,365 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-01 21:54:35,365 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-01 21:54:35,384 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(unknown-main_\old_#valid-unknown) == \valid && arr == 0) && 1 == \valid[arr]) && 4096 == unknown-#length-unknown[arr] [2019-12-01 21:54:35,385 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2019-12-01 21:54:35,395 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6292a565-7588-439d-bf5a-a43363a4ec0b/bin/ukojak/witness.graphml [2019-12-01 21:54:35,395 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-01 21:54:35,397 INFO L168 Benchmark]: Toolchain (without parser) took 1150.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 949.9 MB in the beginning and 1.0 GB in the end (delta: -51.1 MB). Peak memory consumption was 82.6 MB. Max. memory is 11.5 GB. [2019-12-01 21:54:35,397 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 21:54:35,398 INFO L168 Benchmark]: CACSL2BoogieTranslator took 192.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -177.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-12-01 21:54:35,398 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 21:54:35,399 INFO L168 Benchmark]: Boogie Preprocessor took 14.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 21:54:35,399 INFO L168 Benchmark]: RCFGBuilder took 221.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-12-01 21:54:35,400 INFO L168 Benchmark]: CodeCheck took 649.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 104.0 MB). Peak memory consumption was 104.0 MB. Max. memory is 11.5 GB. [2019-12-01 21:54:35,400 INFO L168 Benchmark]: Witness Printer took 43.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 21:54:35,402 INFO L335 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. Result: SAFE, OverallTime: 0.5s, OverallIterations: 6, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 8 SDslu, 0 SDs, 0 SdLazy, 238 SolverSat, 130 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s 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 [2019-12-01 21:54:35,404 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-01 21:54:35,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2019-12-01 21:54:35,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-01 21:54:35,405 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: ((\old(unknown-main_\old_#valid-unknown) == \valid && arr == 0) && 1 == \valid[arr]) && 4096 == unknown-#length-unknown[arr] - InvariantResult [Line: 16]: Loop Invariant [2019-12-01 21:54:35,406 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2019-12-01 21:54:35,406 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 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 963.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 192.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 949.9 MB in the beginning and 1.1 GB in the end (delta: -177.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.46 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 221.38 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * CodeCheck took 649.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 104.0 MB). Peak memory consumption was 104.0 MB. Max. memory is 11.5 GB. * Witness Printer took 43.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #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...