./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark19_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_07e4f817-1296-46db-a033-59b79371751a/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_07e4f817-1296-46db-a033-59b79371751a/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_07e4f817-1296-46db-a033-59b79371751a/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_07e4f817-1296-46db-a033-59b79371751a/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark19_conjunctive.i -s /tmp/vcloud-vcloud-master/worker/run_dir_07e4f817-1296-46db-a033-59b79371751a/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_07e4f817-1296-46db-a033-59b79371751a/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b3778a0dc06b06dbf04163d9b170743f1501fb85 ..................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 21:31:45,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:31:45,242 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:31:45,305 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:31:45,306 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:31:45,311 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:31:45,314 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:31:45,318 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:31:45,320 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:31:45,331 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:31:45,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:31:45,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:31:45,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:31:45,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:31:45,340 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:31:45,342 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:31:45,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:31:45,347 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:31:45,350 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:31:45,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:31:45,360 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:31:45,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:31:45,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:31:45,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:31:45,376 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:31:45,377 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:31:45,377 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:31:45,379 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:31:45,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:31:45,381 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:31:45,382 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:31:45,383 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:31:45,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:31:45,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:31:45,388 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:31:45,389 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:31:45,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:31:45,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:31:45,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:31:45,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:31:45,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:31:45,395 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_07e4f817-1296-46db-a033-59b79371751a/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2020-11-29 21:31:45,442 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:31:45,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:31:45,444 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-29 21:31:45,445 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-29 21:31:45,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:31:45,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:31:45,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:31:45,446 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:31:45,446 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 21:31:45,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 21:31:45,448 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:31:45,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:31:45,448 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 21:31:45,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 21:31:45,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 21:31:45,449 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-29 21:31:45,449 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:31:45,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:31:45,449 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:31:45,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 21:31:45,450 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 21:31:45,450 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 21:31:45,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:31:45,450 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 21:31:45,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 21:31:45,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:31:45,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 21:31:45,451 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 21:31:45,452 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 21:31:45,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 21:31:45,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 21:31:45,454 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_07e4f817-1296-46db-a033-59b79371751a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_07e4f817-1296-46db-a033-59b79371751a/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b3778a0dc06b06dbf04163d9b170743f1501fb85 [2020-11-29 21:31:45,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:31:45,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:31:45,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:31:45,765 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:31:45,766 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:31:45,767 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_07e4f817-1296-46db-a033-59b79371751a/bin/ukojak/../../sv-benchmarks/c/loop-zilu/benchmark19_conjunctive.i [2020-11-29 21:31:45,843 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_07e4f817-1296-46db-a033-59b79371751a/bin/ukojak/data/805711419/506ccfb5a4604012a3121b268cb6a518/FLAGdbbaad4bb [2020-11-29 21:31:46,393 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:31:46,394 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_07e4f817-1296-46db-a033-59b79371751a/sv-benchmarks/c/loop-zilu/benchmark19_conjunctive.i [2020-11-29 21:31:46,406 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_07e4f817-1296-46db-a033-59b79371751a/bin/ukojak/data/805711419/506ccfb5a4604012a3121b268cb6a518/FLAGdbbaad4bb [2020-11-29 21:31:46,719 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_07e4f817-1296-46db-a033-59b79371751a/bin/ukojak/data/805711419/506ccfb5a4604012a3121b268cb6a518 [2020-11-29 21:31:46,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:31:46,723 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:31:46,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:31:46,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:31:46,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:31:46,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:31:46" (1/1) ... [2020-11-29 21:31:46,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1245b764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:31:46, skipping insertion in model container [2020-11-29 21:31:46,730 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:31:46" (1/1) ... [2020-11-29 21:31:46,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:31:46,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:31:46,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:31:46,891 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:31:46,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:31:46,917 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:31:46,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:31:46 WrapperNode [2020-11-29 21:31:46,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:31:46,919 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:31:46,919 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:31:46,919 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:31:46,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:31:46" (1/1) ... [2020-11-29 21:31:46,934 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:31:46" (1/1) ... [2020-11-29 21:31:46,952 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:31:46,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:31:46,953 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:31:46,953 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:31:46,962 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:31:46" (1/1) ... [2020-11-29 21:31:46,962 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:31:46" (1/1) ... [2020-11-29 21:31:46,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:31:46" (1/1) ... [2020-11-29 21:31:46,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:31:46" (1/1) ... [2020-11-29 21:31:46,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:31:46" (1/1) ... [2020-11-29 21:31:46,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:31:46" (1/1) ... [2020-11-29 21:31:46,989 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:31:46" (1/1) ... [2020-11-29 21:31:46,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:31:46,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:31:46,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:31:46,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:31:47,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:31:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_07e4f817-1296-46db-a033-59b79371751a/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 [2020-11-29 21:31:47,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 21:31:47,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:31:47,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:31:47,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:31:47,508 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:31:47,508 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-29 21:31:47,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:31:47 BoogieIcfgContainer [2020-11-29 21:31:47,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:31:47,511 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 21:31:47,511 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 21:31:47,521 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 21:31:47,528 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:31:47" (1/1) ... [2020-11-29 21:31:47,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:31:47,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:31:47,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2020-11-29 21:31:47,571 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2020-11-29 21:31:47,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-29 21:31:47,574 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:31:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:31:47,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:31:47,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:31:47,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2020-11-29 21:31:47,863 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2020-11-29 21:31:47,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 21:31:47,863 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:31:47,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:31:47,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:31:48,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:31:48,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2020-11-29 21:31:48,015 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2020-11-29 21:31:48,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 21:31:48,015 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:31:48,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:31:48,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:31:48,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:31:48,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 23 transitions. [2020-11-29 21:31:48,452 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2020-11-29 21:31:48,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 21:31:48,454 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:31:48,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:31:48,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:31:49,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:31:49,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2020-11-29 21:31:49,172 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2020-11-29 21:31:49,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-29 21:31:49,173 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:31:49,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:31:49,312 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:31:49,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:31:49,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2020-11-29 21:31:49,819 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2020-11-29 21:31:49,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 21:31:49,820 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:31:49,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:31:49,950 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:31:50,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:31:50,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2020-11-29 21:31:50,150 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2020-11-29 21:31:50,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 21:31:50,151 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:31:50,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:31:50,283 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:31:50,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:31:50,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 32 states and 45 transitions. [2020-11-29 21:31:50,941 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 45 transitions. [2020-11-29 21:31:50,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 21:31:50,942 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:31:50,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:31:51,083 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:31:51,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:31:51,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 37 states and 51 transitions. [2020-11-29 21:31:51,735 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2020-11-29 21:31:51,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 21:31:51,736 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 21:31:51,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:31:51,937 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 21:31:52,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 21:31:52,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2020-11-29 21:31:52,842 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2020-11-29 21:31:52,842 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 21:31:52,843 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2020-11-29 21:31:52,848 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-11-29 21:31:52,902 INFO L569 CodeCheckObserver]: Invariant with dag size 13 [2020-11-29 21:31:52,911 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-29 21:31:52,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 09:31:52 ImpRootNode [2020-11-29 21:31:52,913 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 21:31:52,915 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:31:52,915 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:31:52,915 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:31:52,915 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:31:47" (3/4) ... [2020-11-29 21:31:52,917 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 21:31:52,925 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-29 21:31:52,926 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-29 21:31:52,926 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 21:31:52,926 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 21:31:52,974 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_07e4f817-1296-46db-a033-59b79371751a/bin/ukojak/witness.graphml [2020-11-29 21:31:52,974 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:31:52,976 INFO L168 Benchmark]: Toolchain (without parser) took 6252.11 ms. Allocated memory was 94.4 MB in the beginning and 146.8 MB in the end (delta: 52.4 MB). Free memory was 70.2 MB in the beginning and 55.5 MB in the end (delta: 14.8 MB). Peak memory consumption was 69.0 MB. Max. memory is 16.1 GB. [2020-11-29 21:31:52,977 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 71.3 MB. Free memory was 41.8 MB in the beginning and 41.7 MB in the end (delta: 39.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:31:52,977 INFO L168 Benchmark]: CACSL2BoogieTranslator took 194.19 ms. Allocated memory is still 94.4 MB. Free memory was 70.1 MB in the beginning and 60.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 21:31:52,978 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.62 ms. Allocated memory is still 94.4 MB. Free memory was 60.6 MB in the beginning and 59.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:31:52,978 INFO L168 Benchmark]: Boogie Preprocessor took 37.70 ms. Allocated memory is still 94.4 MB. Free memory was 59.3 MB in the beginning and 58.3 MB in the end (delta: 974.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:31:52,979 INFO L168 Benchmark]: RCFGBuilder took 518.68 ms. Allocated memory is still 94.4 MB. Free memory was 58.2 MB in the beginning and 41.6 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-29 21:31:52,980 INFO L168 Benchmark]: CodeCheck took 5401.87 ms. Allocated memory was 94.4 MB in the beginning and 146.8 MB in the end (delta: 52.4 MB). Free memory was 41.6 MB in the beginning and 58.6 MB in the end (delta: -17.0 MB). Peak memory consumption was 37.5 MB. Max. memory is 16.1 GB. [2020-11-29 21:31:52,981 INFO L168 Benchmark]: Witness Printer took 59.32 ms. Allocated memory is still 146.8 MB. Free memory was 58.6 MB in the beginning and 55.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:31:52,984 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, 13 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.2s, OverallIterations: 10, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 2604 SDslu, 512 SDs, 0 SdLazy, 13036 SolverSat, 3024 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 755 GetRequests, 599 SyntacticMatches, 36 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6324 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 85 NumberOfCodeBlocks, 85 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 2370 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 7 PerfectInterpolantSequences, 16/35 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: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: ((1 <= k && j <= k) && k <= 2147483647) || ((j <= k && 0 <= k) && k < 1) - InvariantResult [Line: 19]: 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 71.3 MB. Free memory was 41.8 MB in the beginning and 41.7 MB in the end (delta: 39.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 194.19 ms. Allocated memory is still 94.4 MB. Free memory was 70.1 MB in the beginning and 60.8 MB in the end (delta: 9.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.62 ms. Allocated memory is still 94.4 MB. Free memory was 60.6 MB in the beginning and 59.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.70 ms. Allocated memory is still 94.4 MB. Free memory was 59.3 MB in the beginning and 58.3 MB in the end (delta: 974.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 518.68 ms. Allocated memory is still 94.4 MB. Free memory was 58.2 MB in the beginning and 41.6 MB in the end (delta: 16.6 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * CodeCheck took 5401.87 ms. Allocated memory was 94.4 MB in the beginning and 146.8 MB in the end (delta: 52.4 MB). Free memory was 41.6 MB in the beginning and 58.6 MB in the end (delta: -17.0 MB). Peak memory consumption was 37.5 MB. Max. memory is 16.1 GB. * Witness Printer took 59.32 ms. Allocated memory is still 146.8 MB. Free memory was 58.6 MB in the beginning and 55.5 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...