./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/stroeder1-alloca-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_5accd9d1-9f05-4b23-a9fd-5047f99b52ad/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5accd9d1-9f05-4b23-a9fd-5047f99b52ad/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5accd9d1-9f05-4b23-a9fd-5047f99b52ad/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5accd9d1-9f05-4b23-a9fd-5047f99b52ad/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/stroeder1-alloca-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_5accd9d1-9f05-4b23-a9fd-5047f99b52ad/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5accd9d1-9f05-4b23-a9fd-5047f99b52ad/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 1643f1caf494dad598b4df826effeedd3e612fb8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:32:41,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:32:41,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:32:41,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:32:41,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:32:41,338 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:32:41,344 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:32:41,352 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:32:41,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:32:41,365 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:32:41,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:32:41,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:32:41,377 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:32:41,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:32:41,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:32:41,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:32:41,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:32:41,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:32:41,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:32:41,403 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:32:41,406 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:32:41,407 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:32:41,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:32:41,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:32:41,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:32:41,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:32:41,420 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:32:41,421 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:32:41,422 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:32:41,423 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:32:41,424 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:32:41,425 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:32:41,428 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:32:41,430 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:32:41,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:32:41,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:32:41,432 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:32:41,433 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:32:41,433 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:32:41,434 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:32:41,435 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:32:41,438 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5accd9d1-9f05-4b23-a9fd-5047f99b52ad/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-11-28 04:32:41,481 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:32:41,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:32:41,483 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:32:41,483 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:32:41,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:32:41,484 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:32:41,484 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:32:41,484 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:32:41,484 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:32:41,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:32:41,486 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 04:32:41,486 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 04:32:41,486 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 04:32:41,486 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:32:41,487 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:32:41,487 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:32:41,487 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:32:41,487 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:32:41,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:32:41,488 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:32:41,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:32:41,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:32:41,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:32:41,489 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:32:41,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:32:41,489 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_5accd9d1-9f05-4b23-a9fd-5047f99b52ad/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5accd9d1-9f05-4b23-a9fd-5047f99b52ad/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1643f1caf494dad598b4df826effeedd3e612fb8 [2020-11-28 04:32:41,826 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:32:41,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:32:41,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:32:41,887 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:32:41,888 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:32:41,890 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5accd9d1-9f05-4b23-a9fd-5047f99b52ad/bin/ukojak/../../sv-benchmarks/c/array-memsafety/stroeder1-alloca-1.i [2020-11-28 04:32:42,004 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5accd9d1-9f05-4b23-a9fd-5047f99b52ad/bin/ukojak/data/c38b6b5ea/a8ad0bf525c64bb498d1dc00461c8c5c/FLAG2e150249a [2020-11-28 04:32:42,715 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:32:42,716 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5accd9d1-9f05-4b23-a9fd-5047f99b52ad/sv-benchmarks/c/array-memsafety/stroeder1-alloca-1.i [2020-11-28 04:32:42,732 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5accd9d1-9f05-4b23-a9fd-5047f99b52ad/bin/ukojak/data/c38b6b5ea/a8ad0bf525c64bb498d1dc00461c8c5c/FLAG2e150249a [2020-11-28 04:32:43,017 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5accd9d1-9f05-4b23-a9fd-5047f99b52ad/bin/ukojak/data/c38b6b5ea/a8ad0bf525c64bb498d1dc00461c8c5c [2020-11-28 04:32:43,020 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:32:43,022 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:32:43,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:32:43,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:32:43,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:32:43,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:32:43" (1/1) ... [2020-11-28 04:32:43,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66bd52fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:43, skipping insertion in model container [2020-11-28 04:32:43,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:32:43" (1/1) ... [2020-11-28 04:32:43,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:32:43,094 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:32:43,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:32:43,510 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:32:43,556 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:32:43,603 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:32:43,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:43 WrapperNode [2020-11-28 04:32:43,604 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:32:43,605 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:32:43,606 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:32:43,606 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:32:43,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:43" (1/1) ... [2020-11-28 04:32:43,627 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:43" (1/1) ... [2020-11-28 04:32:43,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:32:43,648 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:32:43,648 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:32:43,648 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:32:43,657 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:43" (1/1) ... [2020-11-28 04:32:43,657 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:43" (1/1) ... [2020-11-28 04:32:43,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:43" (1/1) ... [2020-11-28 04:32:43,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:43" (1/1) ... [2020-11-28 04:32:43,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:43" (1/1) ... [2020-11-28 04:32:43,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:43" (1/1) ... [2020-11-28 04:32:43,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:43" (1/1) ... [2020-11-28 04:32:43,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:32:43,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:32:43,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:32:43,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:32:43,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:32:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5accd9d1-9f05-4b23-a9fd-5047f99b52ad/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:32:43,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 04:32:43,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 04:32:43,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:32:43,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 04:32:43,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:32:43,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:32:44,364 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:32:44,364 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-28 04:32:44,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:44 BoogieIcfgContainer [2020-11-28 04:32:44,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:32:44,367 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:32:44,368 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:32:44,378 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:32:44,379 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:44" (1/1) ... [2020-11-28 04:32:44,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:32:44,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:44,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2020-11-28 04:32:44,425 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-11-28 04:32:44,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:32:44,428 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:44,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:44,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:44,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:44,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 11 states and 12 transitions. [2020-11-28 04:32:44,637 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2020-11-28 04:32:44,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:32:44,638 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:44,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:44,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:45,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:45,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2020-11-28 04:32:45,143 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2020-11-28 04:32:45,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:32:45,144 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:45,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:45,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:45,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:45,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2020-11-28 04:32:45,323 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2020-11-28 04:32:45,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:32:45,323 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:45,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:45,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:45,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:45,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 16 states and 23 transitions. [2020-11-28 04:32:45,673 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 23 transitions. [2020-11-28 04:32:45,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:32:45,675 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:45,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:45,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:46,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:46,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 16 states and 22 transitions. [2020-11-28 04:32:46,277 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 22 transitions. [2020-11-28 04:32:46,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:32:46,277 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:46,484 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:47,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:47,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 19 states and 29 transitions. [2020-11-28 04:32:47,425 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 29 transitions. [2020-11-28 04:32:47,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:32:47,426 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:47,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:47,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:32:48,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:48,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 21 states and 38 transitions. [2020-11-28 04:32:48,223 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 38 transitions. [2020-11-28 04:32:48,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:32:48,223 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:48,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:48,371 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:48,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:48,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 21 states and 37 transitions. [2020-11-28 04:32:48,699 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 37 transitions. [2020-11-28 04:32:48,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:32:48,700 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:48,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:48,740 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:49,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:49,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 22 states and 39 transitions. [2020-11-28 04:32:49,014 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 39 transitions. [2020-11-28 04:32:49,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:32:49,014 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:49,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:49,174 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:49,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:49,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 18 states and 29 transitions. [2020-11-28 04:32:49,642 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 29 transitions. [2020-11-28 04:32:49,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:32:49,643 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:49,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:49,664 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:32:49,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:49,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 18 states and 28 transitions. [2020-11-28 04:32:49,950 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 28 transitions. [2020-11-28 04:32:49,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:32:49,951 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:49,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:50,188 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:51,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:51,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 22 states and 36 transitions. [2020-11-28 04:32:51,653 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 36 transitions. [2020-11-28 04:32:51,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:32:51,654 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:51,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:51,909 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:32:53,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:53,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 26 states and 48 transitions. [2020-11-28 04:32:53,876 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 48 transitions. [2020-11-28 04:32:53,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:32:53,877 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:53,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:53,904 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:32:54,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:54,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 27 states and 49 transitions. [2020-11-28 04:32:54,288 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 49 transitions. [2020-11-28 04:32:54,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:32:54,290 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:54,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:54,331 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:32:54,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:54,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 28 states and 50 transitions. [2020-11-28 04:32:54,822 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 50 transitions. [2020-11-28 04:32:54,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:32:54,823 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:54,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:55,455 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:32:57,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:32:57,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 30 states and 56 transitions. [2020-11-28 04:32:57,258 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 56 transitions. [2020-11-28 04:32:57,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:32:57,259 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:32:57,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:32:57,679 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:33:00,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:00,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 34 states and 64 transitions. [2020-11-28 04:33:00,081 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2020-11-28 04:33:00,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:33:00,082 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:00,113 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-28 04:33:02,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:02,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 36 states and 69 transitions. [2020-11-28 04:33:02,340 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2020-11-28 04:33:02,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:33:02,341 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:02,832 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:33:03,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:03,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 36 states and 67 transitions. [2020-11-28 04:33:03,633 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 67 transitions. [2020-11-28 04:33:03,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:33:03,634 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:03,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:04,539 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-28 04:33:05,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:05,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 28 states and 35 transitions. [2020-11-28 04:33:05,977 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2020-11-28 04:33:05,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-28 04:33:05,978 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:33:05,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:33:06,009 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-11-28 04:33:08,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:33:08,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2020-11-28 04:33:08,543 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2020-11-28 04:33:08,544 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:33:08,544 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 22 iterations. [2020-11-28 04:33:08,550 INFO L765 CodeCheckObserver]: All specifications hold 5 specifications checked. All of them hold [2020-11-28 04:33:08,682 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-11-28 04:33:09,035 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 28 [2020-11-28 04:33:09,036 INFO L569 CodeCheckObserver]: Invariant with dag size 27 [2020-11-28 04:33:09,041 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:33:09,041 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:33:09,042 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:33:09,047 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:33:09,047 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:33:09,048 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:33:09,048 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-11-28 04:33:09,048 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:33:09,049 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:33:09,049 INFO L569 CodeCheckObserver]: Invariant with dag size 37 [2020-11-28 04:33:09,051 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:33:09,051 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:33:09,051 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:33:09,052 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:33:09,052 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:33:09,052 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:33:09,052 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:33:09,053 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:33:09,053 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:33:09,055 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:33:09,055 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:33:09,055 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:33:09,055 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:33:09,056 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:33:09,056 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:33:09,056 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:33:09,056 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:33:09,057 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:33:09,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:33:09 ImpRootNode [2020-11-28 04:33:09,058 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:33:09,058 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:33:09,058 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:33:09,059 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:33:09,059 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:32:44" (3/4) ... [2020-11-28 04:33:09,062 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:33:09,071 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-11-28 04:33:09,071 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-28 04:33:09,071 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 04:33:09,095 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((1 <= i && \valid[numbers] == 1) && 1 <= array_size) && i <= 1) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) && unknown-#length-unknown[numbers] == 4 * array_size) && numbers == 0) || (((((2 < i && \valid[numbers] == 1) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) && unknown-#length-unknown[numbers] == 4 * array_size) && 3 <= array_size) && numbers == 0)) || (((((\valid[numbers] == 1 && 1 <= array_size) && i == 0) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) && 4 * array_size == unknown-#length-unknown[numbers]) && numbers == 0)) || ((((((1 < i && \valid[numbers] == 1) && i <= 2) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) && unknown-#length-unknown[numbers] == 4 * array_size) && 8 <= unknown-#length-unknown[numbers]) && numbers == 0) [2020-11-28 04:33:09,096 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((array_size < i + 1 && 1 == \valid[numbers]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) || (((numbers + 4 * array_size <= unknown-#length-unknown[numbers] && 0 <= numbers + 4 * i) && 1 == \valid[numbers]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) [2020-11-28 04:33:09,097 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2020-11-28 04:33:09,122 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5accd9d1-9f05-4b23-a9fd-5047f99b52ad/bin/ukojak/witness.graphml [2020-11-28 04:33:09,123 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:33:09,124 INFO L168 Benchmark]: Toolchain (without parser) took 26101.98 ms. Allocated memory was 98.6 MB in the beginning and 264.2 MB in the end (delta: 165.7 MB). Free memory was 69.7 MB in the beginning and 103.7 MB in the end (delta: -34.0 MB). Peak memory consumption was 129.9 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:09,125 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 98.6 MB. Free memory is still 58.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:33:09,125 INFO L168 Benchmark]: CACSL2BoogieTranslator took 581.07 ms. Allocated memory is still 98.6 MB. Free memory was 69.5 MB in the beginning and 63.7 MB in the end (delta: 5.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:09,126 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.11 ms. Allocated memory is still 98.6 MB. Free memory was 63.7 MB in the beginning and 62.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:09,126 INFO L168 Benchmark]: Boogie Preprocessor took 25.14 ms. Allocated memory is still 98.6 MB. Free memory was 61.7 MB in the beginning and 60.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:33:09,127 INFO L168 Benchmark]: RCFGBuilder took 692.71 ms. Allocated memory was 98.6 MB in the beginning and 125.8 MB in the end (delta: 27.3 MB). Free memory was 60.7 MB in the beginning and 94.3 MB in the end (delta: -33.7 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:09,128 INFO L168 Benchmark]: CodeCheck took 24690.30 ms. Allocated memory was 125.8 MB in the beginning and 264.2 MB in the end (delta: 138.4 MB). Free memory was 93.7 MB in the beginning and 106.8 MB in the end (delta: -13.1 MB). Peak memory consumption was 124.9 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:09,128 INFO L168 Benchmark]: Witness Printer took 64.61 ms. Allocated memory is still 264.2 MB. Free memory was 106.8 MB in the beginning and 103.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:33:09,131 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, 12 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 24.1s, OverallIterations: 22, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2359296 SDtfs, 3518944 SDslu, 2097152 SDs, 0 SdLazy, 34227248 SolverSat, 12873524 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1702 GetRequests, 1420 SyntacticMatches, 52 SemanticMatches, 230 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21235 ImplicationChecksByTransitivity, 22.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.0s InterpolantComputationTime, 166 NumberOfCodeBlocks, 166 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 145 ConstructedInterpolants, 0 QuantifiedInterpolants, 8914 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 11 PerfectInterpolantSequences, 57/93 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: 533]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 533]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 520]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 524]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 520]: 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: 517]: Loop Invariant [2020-11-28 04:33:09,134 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:33:09,134 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:33:09,142 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:33:09,146 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:33:09,149 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:33:09,150 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: ((array_size < i + 1 && 1 == \valid[numbers]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) || (((numbers + 4 * array_size <= unknown-#length-unknown[numbers] && 0 <= numbers + 4 * i) && 1 == \valid[numbers]) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) - InvariantResult [Line: 524]: Loop Invariant [2020-11-28 04:33:09,150 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:33:09,151 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid - InvariantResult [Line: 531]: Loop Invariant [2020-11-28 04:33:09,154 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:33:09,154 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:33:09,155 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:33:09,155 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:33:09,155 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:33:09,155 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:33:09,155 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:33:09,156 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:33:09,156 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:33:09,162 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:33:09,167 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:33:09,168 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:33:09,168 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:33:09,168 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:33:09,168 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:33:09,169 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:33:09,169 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-28 04:33:09,169 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: ((((((((1 <= i && \valid[numbers] == 1) && 1 <= array_size) && i <= 1) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) && unknown-#length-unknown[numbers] == 4 * array_size) && numbers == 0) || (((((2 < i && \valid[numbers] == 1) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) && unknown-#length-unknown[numbers] == 4 * array_size) && 3 <= array_size) && numbers == 0)) || (((((\valid[numbers] == 1 && 1 <= array_size) && i == 0) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) && 4 * array_size == unknown-#length-unknown[numbers]) && numbers == 0)) || ((((((1 < i && \valid[numbers] == 1) && i <= 2) && \old(unknown-main_\old_#valid-unknown) == \valid[__builtin_alloca (array_size * sizeof(int)) := 0]) && unknown-#length-unknown[numbers] == 4 * array_size) && 8 <= unknown-#length-unknown[numbers]) && numbers == 0) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 98.6 MB. Free memory is still 58.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 581.07 ms. Allocated memory is still 98.6 MB. Free memory was 69.5 MB in the beginning and 63.7 MB in the end (delta: 5.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.11 ms. Allocated memory is still 98.6 MB. Free memory was 63.7 MB in the beginning and 62.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.14 ms. Allocated memory is still 98.6 MB. Free memory was 61.7 MB in the beginning and 60.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 692.71 ms. Allocated memory was 98.6 MB in the beginning and 125.8 MB in the end (delta: 27.3 MB). Free memory was 60.7 MB in the beginning and 94.3 MB in the end (delta: -33.7 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. * CodeCheck took 24690.30 ms. Allocated memory was 125.8 MB in the beginning and 264.2 MB in the end (delta: 138.4 MB). Free memory was 93.7 MB in the beginning and 106.8 MB in the end (delta: -13.1 MB). Peak memory consumption was 124.9 MB. Max. memory is 16.1 GB. * Witness Printer took 64.61 ms. Allocated memory is still 264.2 MB. Free memory was 106.8 MB in the beginning and 103.7 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 #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 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 #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #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 #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable 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 #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #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 #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length RESULT: Ultimate proved your program to be correct! Received shutdown request...