./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.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_25d42248-eda5-475f-a6e0-7d19f793da0a/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_25d42248-eda5-475f-a6e0-7d19f793da0a/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_25d42248-eda5-475f-a6e0-7d19f793da0a/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_25d42248-eda5-475f-a6e0-7d19f793da0a/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_25d42248-eda5-475f-a6e0-7d19f793da0a/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_25d42248-eda5-475f-a6e0-7d19f793da0a/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 86b203c3a804c103d90401bd32cfcff28939b920 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:42:26,763 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:42:26,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:42:26,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:42:26,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:42:26,833 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:42:26,835 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:42:26,847 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:42:26,849 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:42:26,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:42:26,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:42:26,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:42:26,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:42:26,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:42:26,875 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:42:26,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:42:26,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:42:26,890 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:42:26,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:42:26,901 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:42:26,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:42:26,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:42:26,911 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:42:26,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:42:26,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:42:26,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:42:26,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:42:26,922 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:42:26,923 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:42:26,924 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:42:26,925 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:42:26,926 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:42:26,928 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:42:26,929 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:42:26,930 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:42:26,931 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:42:26,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:42:26,932 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:42:26,932 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:42:26,933 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:42:26,934 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:42:26,937 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_25d42248-eda5-475f-a6e0-7d19f793da0a/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-11-28 04:42:26,980 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:42:26,981 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:42:26,982 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:42:26,983 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:42:26,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:42:26,983 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:42:26,983 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:42:26,984 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:42:26,984 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:42:26,984 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:42:26,985 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 04:42:26,985 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 04:42:26,986 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 04:42:26,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:42:26,986 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:42:26,986 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:42:26,986 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:42:26,987 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:42:26,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:42:26,987 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:42:26,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:42:26,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:42:26,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:42:26,988 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:42:26,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:42:26,988 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_25d42248-eda5-475f-a6e0-7d19f793da0a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_25d42248-eda5-475f-a6e0-7d19f793da0a/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86b203c3a804c103d90401bd32cfcff28939b920 [2020-11-28 04:42:27,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:42:27,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:42:27,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:42:27,282 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:42:27,283 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:42:27,284 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_25d42248-eda5-475f-a6e0-7d19f793da0a/bin/ukojak/../../sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i [2020-11-28 04:42:27,349 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_25d42248-eda5-475f-a6e0-7d19f793da0a/bin/ukojak/data/78e3d986b/9efd54bef9b44f499262f943f6599ed9/FLAGe3e534351 [2020-11-28 04:42:27,912 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:42:27,912 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_25d42248-eda5-475f-a6e0-7d19f793da0a/sv-benchmarks/c/list-ext3-properties/sll_shallow_copy-1.i [2020-11-28 04:42:27,939 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_25d42248-eda5-475f-a6e0-7d19f793da0a/bin/ukojak/data/78e3d986b/9efd54bef9b44f499262f943f6599ed9/FLAGe3e534351 [2020-11-28 04:42:28,187 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_25d42248-eda5-475f-a6e0-7d19f793da0a/bin/ukojak/data/78e3d986b/9efd54bef9b44f499262f943f6599ed9 [2020-11-28 04:42:28,189 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:42:28,191 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:42:28,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:42:28,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:42:28,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:42:28,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:42:28" (1/1) ... [2020-11-28 04:42:28,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47a10636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:28, skipping insertion in model container [2020-11-28 04:42:28,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:42:28" (1/1) ... [2020-11-28 04:42:28,206 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:42:28,241 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:42:28,535 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:42:28,542 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:42:28,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:42:28,621 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:42:28,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:28 WrapperNode [2020-11-28 04:42:28,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:42:28,622 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:42:28,623 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:42:28,623 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:42:28,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:28" (1/1) ... [2020-11-28 04:42:28,643 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:28" (1/1) ... [2020-11-28 04:42:28,662 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:42:28,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:42:28,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:42:28,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:42:28,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:28" (1/1) ... [2020-11-28 04:42:28,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:28" (1/1) ... [2020-11-28 04:42:28,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:28" (1/1) ... [2020-11-28 04:42:28,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:28" (1/1) ... [2020-11-28 04:42:28,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:28" (1/1) ... [2020-11-28 04:42:28,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:28" (1/1) ... [2020-11-28 04:42:28,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:28" (1/1) ... [2020-11-28 04:42:28,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:42:28,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:42:28,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:42:28,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:42:28,693 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_25d42248-eda5-475f-a6e0-7d19f793da0a/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:42:28,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 04:42:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-28 04:42:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-28 04:42:28,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 04:42:28,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:42:28,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:42:29,374 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:42:29,374 INFO L298 CfgBuilder]: Removed 12 assume(true) statements. [2020-11-28 04:42:29,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:29 BoogieIcfgContainer [2020-11-28 04:42:29,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:42:29,378 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:42:29,378 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:42:29,389 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:42:29,390 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:29" (1/1) ... [2020-11-28 04:42:29,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:42:29,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:29,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 32 states and 33 transitions. [2020-11-28 04:42:29,452 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2020-11-28 04:42:29,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:42:29,455 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:29,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:29,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:29,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:29,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 31 states and 32 transitions. [2020-11-28 04:42:29,743 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2020-11-28 04:42:29,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:42:29,744 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:29,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:29,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:30,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:30,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 30 states and 31 transitions. [2020-11-28 04:42:30,364 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-11-28 04:42:30,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:42:30,364 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:30,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:30,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:30,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 29 states and 30 transitions. [2020-11-28 04:42:30,431 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-11-28 04:42:30,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:42:30,431 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:30,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:30,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:30,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:30,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 28 states and 29 transitions. [2020-11-28 04:42:30,698 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2020-11-28 04:42:30,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:42:30,698 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:30,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:30,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:30,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:30,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 27 states and 28 transitions. [2020-11-28 04:42:30,764 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-11-28 04:42:30,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:42:30,764 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:30,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:30,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:30,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:30,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 26 states and 27 transitions. [2020-11-28 04:42:30,864 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-11-28 04:42:30,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:42:30,865 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:30,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:30,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:30,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:30,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 25 states and 26 transitions. [2020-11-28 04:42:30,912 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2020-11-28 04:42:30,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:42:30,912 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:30,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:30,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:30,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:30,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 24 states and 25 transitions. [2020-11-28 04:42:30,964 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-11-28 04:42:30,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:42:30,964 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:31,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:31,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:31,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 23 states and 24 transitions. [2020-11-28 04:42:31,458 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-11-28 04:42:31,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:42:31,459 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:31,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:31,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:32,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:32,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 22 states and 23 transitions. [2020-11-28 04:42:32,480 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-11-28 04:42:32,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:42:32,481 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:32,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:32,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:32,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:32,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 21 states and 22 transitions. [2020-11-28 04:42:32,820 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-11-28 04:42:32,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:42:32,820 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:32,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:33,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:34,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:34,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 20 states and 21 transitions. [2020-11-28 04:42:34,741 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-11-28 04:42:34,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:42:34,742 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:34,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:35,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:37,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:37,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 19 states and 20 transitions. [2020-11-28 04:42:37,724 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-11-28 04:42:37,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:42:37,724 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:37,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:38,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:42,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:42,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 18 states and 19 transitions. [2020-11-28 04:42:42,446 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-11-28 04:42:42,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:42:42,447 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:42,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:43,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:42:51,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:51,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 17 states and 18 transitions. [2020-11-28 04:42:51,869 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-11-28 04:42:51,869 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:42:51,870 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 16 iterations. [2020-11-28 04:42:51,876 INFO L765 CodeCheckObserver]: All specifications hold 15 specifications checked. All of them hold [2020-11-28 04:42:52,087 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:42:52,091 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-11-28 04:42:52,094 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:42:52,099 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:42:52,100 INFO L569 CodeCheckObserver]: Invariant with dag size 20 [2020-11-28 04:42:52,101 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:42:52,101 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:42:52,101 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 04:42:52,102 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:42:52,102 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:42:52,102 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 04:42:52,102 INFO L569 CodeCheckObserver]: Invariant with dag size 28 [2020-11-28 04:42:52,103 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 04:42:52,103 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:42:52,103 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 04:42:52,104 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:42:52,105 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 04:42:52,105 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:42:52,105 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 04:42:52,105 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:42:52,106 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:42:52,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:42:52 ImpRootNode [2020-11-28 04:42:52,106 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:42:52,106 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:42:52,107 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:42:52,107 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:42:52,107 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:29" (3/4) ... [2020-11-28 04:42:52,115 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:42:52,126 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-11-28 04:42:52,126 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-28 04:42:52,127 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 04:42:52,154 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\valid[temp] == 1 && 0 <= temp) && 4 == unknown-#length-unknown[temp]) && \valid[temp := 0] == \old(unknown-main_\old_#valid-unknown)) && temp <= 0) && temp + 1 <= unknown-#StackHeapBarrier-unknown [2020-11-28 04:42:52,155 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((0 == temp && 0 <= s) && s + 1 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && \valid[s := 0][temp := 0] == \old(unknown-main_\old_#valid-unknown)) && \valid[s := 0][temp] == 1) && \valid[s] == 1) && temp + 1 <= unknown-#StackHeapBarrier-unknown) && unknown-#length-unknown[s] == 4 [2020-11-28 04:42:52,156 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2020-11-28 04:42:52,179 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_25d42248-eda5-475f-a6e0-7d19f793da0a/bin/ukojak/witness.graphml [2020-11-28 04:42:52,179 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:42:52,182 INFO L168 Benchmark]: Toolchain (without parser) took 23989.74 ms. Allocated memory was 138.4 MB in the beginning and 293.6 MB in the end (delta: 155.2 MB). Free memory was 109.2 MB in the beginning and 179.0 MB in the end (delta: -69.8 MB). Peak memory consumption was 83.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:52,183 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 88.1 MB. Free memory was 48.4 MB in the beginning and 48.3 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:42:52,183 INFO L168 Benchmark]: CACSL2BoogieTranslator took 429.42 ms. Allocated memory is still 138.4 MB. Free memory was 108.8 MB in the beginning and 105.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:52,184 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.99 ms. Allocated memory is still 138.4 MB. Free memory was 105.0 MB in the beginning and 103.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:52,185 INFO L168 Benchmark]: Boogie Preprocessor took 23.96 ms. Allocated memory is still 138.4 MB. Free memory was 103.4 MB in the beginning and 101.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:42:52,186 INFO L168 Benchmark]: RCFGBuilder took 689.42 ms. Allocated memory is still 138.4 MB. Free memory was 101.9 MB in the beginning and 79.3 MB in the end (delta: 22.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:52,187 INFO L168 Benchmark]: CodeCheck took 22728.11 ms. Allocated memory was 138.4 MB in the beginning and 293.6 MB in the end (delta: 155.2 MB). Free memory was 79.3 MB in the beginning and 182.1 MB in the end (delta: -102.9 MB). Peak memory consumption was 54.9 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:52,188 INFO L168 Benchmark]: Witness Printer took 73.00 ms. Allocated memory is still 293.6 MB. Free memory was 182.1 MB in the beginning and 179.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:52,192 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, 32 locations, 15 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 22.4s, OverallIterations: 16, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 98432 SDtfs, 91840 SDslu, 98560 SDs, 0 SdLazy, 481350 SolverSat, 168594 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 981 GetRequests, 727 SyntacticMatches, 6 SemanticMatches, 248 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25448 ImplicationChecksByTransitivity, 20.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 106 ConstructedInterpolants, 0 QuantifiedInterpolants, 5957 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 15 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: 568]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 570]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 570]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 573]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 573]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 572]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 574]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 572]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 573]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 571]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 574]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 574]: free always succeeds For all program executions holds that free always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 15 specifications checked. All of them hold - InvariantResult [Line: 559]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 568]: Loop Invariant [2020-11-28 04:42:52,198 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:42:52,198 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid - InvariantResult [Line: 563]: Loop Invariant [2020-11-28 04:42:52,199 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:42:52,199 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:42:52,200 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 04:42:52,200 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:42:52,200 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:42:52,201 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier Derived loop invariant: ((((\valid[temp] == 1 && 0 <= temp) && 4 == unknown-#length-unknown[temp]) && \valid[temp := 0] == \old(unknown-main_\old_#valid-unknown)) && temp <= 0) && temp + 1 <= unknown-#StackHeapBarrier-unknown - InvariantResult [Line: 563]: Loop Invariant [2020-11-28 04:42:52,202 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 04:42:52,202 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:42:52,202 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 04:42:52,203 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:42:52,203 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 04:42:52,204 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:42:52,204 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-28 04:42:52,204 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: (((((((0 == temp && 0 <= s) && s + 1 <= unknown-#StackHeapBarrier-unknown) && s <= 0) && \valid[s := 0][temp := 0] == \old(unknown-main_\old_#valid-unknown)) && \valid[s := 0][temp] == 1) && \valid[s] == 1) && temp + 1 <= unknown-#StackHeapBarrier-unknown) && unknown-#length-unknown[s] == 4 - InvariantResult [Line: 559]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 88.1 MB. Free memory was 48.4 MB in the beginning and 48.3 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 429.42 ms. Allocated memory is still 138.4 MB. Free memory was 108.8 MB in the beginning and 105.0 MB in the end (delta: 3.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.99 ms. Allocated memory is still 138.4 MB. Free memory was 105.0 MB in the beginning and 103.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.96 ms. Allocated memory is still 138.4 MB. Free memory was 103.4 MB in the beginning and 101.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 689.42 ms. Allocated memory is still 138.4 MB. Free memory was 101.9 MB in the beginning and 79.3 MB in the end (delta: 22.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * CodeCheck took 22728.11 ms. Allocated memory was 138.4 MB in the beginning and 293.6 MB in the end (delta: 155.2 MB). Free memory was 79.3 MB in the beginning and 182.1 MB in the end (delta: -102.9 MB). Peak memory consumption was 54.9 MB. Max. memory is 16.1 GB. * Witness Printer took 73.00 ms. Allocated memory is still 293.6 MB. Free memory was 182.1 MB in the beginning and 179.0 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 #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - 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 main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #length RESULT: Ultimate proved your program to be correct! Received shutdown request...