./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex9.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_012b917d-4c68-49ab-961a-6c69eedf7000/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_012b917d-4c68-49ab-961a-6c69eedf7000/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_012b917d-4c68-49ab-961a-6c69eedf7000/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_012b917d-4c68-49ab-961a-6c69eedf7000/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex9.c -s /tmp/vcloud-vcloud-master/worker/run_dir_012b917d-4c68-49ab-961a-6c69eedf7000/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_012b917d-4c68-49ab-961a-6c69eedf7000/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 64bit --witnessprinter.graph.data.programhash 8c261c4c4bb9c8a95f9cb14c668da53a89a0d0c6 .............................................................................................................................................................................................................................. 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 04:44:15,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:44:15,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:44:15,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:44:15,249 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:44:15,253 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:44:15,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:44:15,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:44:15,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:44:15,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:44:15,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:44:15,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:44:15,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:44:15,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:44:15,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:44:15,298 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:44:15,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:44:15,299 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:44:15,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:44:15,304 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:44:15,306 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:44:15,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:44:15,311 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:44:15,313 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:44:15,325 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:44:15,326 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:44:15,326 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:44:15,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:44:15,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:44:15,330 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:44:15,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:44:15,332 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:44:15,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:44:15,335 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:44:15,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:44:15,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:44:15,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:44:15,338 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:44:15,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:44:15,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:44:15,341 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:44:15,342 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_012b917d-4c68-49ab-961a-6c69eedf7000/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-28 04:44:15,386 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:44:15,391 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:44:15,393 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:44:15,393 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:44:15,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:44:15,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:44:15,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:44:15,395 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:44:15,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:44:15,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:44:15,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:44:15,397 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:44:15,397 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:44:15,397 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 04:44:15,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:44:15,398 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:44:15,398 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:44:15,398 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:44:15,398 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:44:15,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:44:15,399 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:44:15,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:44:15,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:44:15,400 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:44:15,400 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:44:15,400 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:44:15,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:44:15,401 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:44:15,401 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_012b917d-4c68-49ab-961a-6c69eedf7000/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_012b917d-4c68-49ab-961a-6c69eedf7000/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8c261c4c4bb9c8a95f9cb14c668da53a89a0d0c6 [2020-11-28 04:44:15,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:44:15,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:44:15,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:44:15,688 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:44:15,690 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:44:15,691 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_012b917d-4c68-49ab-961a-6c69eedf7000/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex9.c [2020-11-28 04:44:15,756 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_012b917d-4c68-49ab-961a-6c69eedf7000/bin/ukojak/data/f4ac35cc6/03cf5cb20fe54ed9ad70707e4b3ed64a/FLAG520b04889 [2020-11-28 04:44:16,180 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:44:16,182 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_012b917d-4c68-49ab-961a-6c69eedf7000/sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex9.c [2020-11-28 04:44:16,192 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_012b917d-4c68-49ab-961a-6c69eedf7000/bin/ukojak/data/f4ac35cc6/03cf5cb20fe54ed9ad70707e4b3ed64a/FLAG520b04889 [2020-11-28 04:44:16,588 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_012b917d-4c68-49ab-961a-6c69eedf7000/bin/ukojak/data/f4ac35cc6/03cf5cb20fe54ed9ad70707e4b3ed64a [2020-11-28 04:44:16,590 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:44:16,592 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:44:16,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:44:16,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:44:16,597 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:44:16,598 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@181e5b1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16, skipping insertion in model container [2020-11-28 04:44:16,600 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,606 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:44:16,617 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:44:16,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:44:16,755 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:44:16,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:44:16,790 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:44:16,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16 WrapperNode [2020-11-28 04:44:16,792 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:44:16,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:44:16,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:44:16,794 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:44:16,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,846 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:44:16,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:44:16,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:44:16,849 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:44:16,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,859 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,859 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:44:16,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:44:16,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:44:16,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:44:16,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_012b917d-4c68-49ab-961a-6c69eedf7000/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 04:44:16,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:44:16,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:44:17,098 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:44:17,099 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 04:44:17,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:17 BoogieIcfgContainer [2020-11-28 04:44:17,101 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:44:17,102 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:44:17,102 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:44:17,121 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:44:17,121 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:17" (1/1) ... [2020-11-28 04:44:17,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:44:17,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:17,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2020-11-28 04:44:17,184 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2020-11-28 04:44:17,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:44:17,186 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:17,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:17,435 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 04:44:17,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:17,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2020-11-28 04:44:17,515 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2020-11-28 04:44:17,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:44:17,515 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:17,645 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 04:44:17,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:17,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2020-11-28 04:44:17,747 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2020-11-28 04:44:17,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:44:17,747 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:17,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:17,835 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:17,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:17,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2020-11-28 04:44:17,960 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2020-11-28 04:44:17,960 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:44:17,961 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2020-11-28 04:44:17,967 INFO L765 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2020-11-28 04:44:17,984 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-11-28 04:44:17,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:44:17 ImpRootNode [2020-11-28 04:44:17,993 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:44:17,994 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:44:17,994 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:44:17,994 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:44:17,995 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:17" (3/4) ... [2020-11-28 04:44:18,000 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:44:18,011 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-28 04:44:18,011 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-28 04:44:18,011 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:44:18,056 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_012b917d-4c68-49ab-961a-6c69eedf7000/bin/ukojak/witness.graphml [2020-11-28 04:44:18,057 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:44:18,059 INFO L168 Benchmark]: Toolchain (without parser) took 1465.93 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 59.4 MB in the beginning and 62.9 MB in the end (delta: -3.5 MB). Peak memory consumption was 19.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:18,060 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 88.1 MB. Free memory was 47.6 MB in the beginning and 47.5 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:18,061 INFO L168 Benchmark]: CACSL2BoogieTranslator took 198.92 ms. Allocated memory is still 88.1 MB. Free memory was 59.2 MB in the beginning and 68.2 MB in the end (delta: -9.1 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:18,062 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.04 ms. Allocated memory is still 88.1 MB. Free memory was 68.2 MB in the beginning and 66.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:18,063 INFO L168 Benchmark]: Boogie Preprocessor took 29.36 ms. Allocated memory is still 88.1 MB. Free memory was 66.8 MB in the beginning and 66.1 MB in the end (delta: 731.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:18,064 INFO L168 Benchmark]: RCFGBuilder took 221.73 ms. Allocated memory is still 88.1 MB. Free memory was 66.1 MB in the beginning and 56.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:18,065 INFO L168 Benchmark]: CodeCheck took 891.52 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 56.7 MB in the beginning and 65.0 MB in the end (delta: -8.3 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:18,065 INFO L168 Benchmark]: Witness Printer took 62.72 ms. Allocated memory is still 113.2 MB. Free memory was 65.0 MB in the beginning and 62.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:18,070 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, 7 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 12 SDslu, 0 SDs, 0 SdLazy, 82 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 78 SyntacticMatches, 6 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 233 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: x <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 88.1 MB. Free memory was 47.6 MB in the beginning and 47.5 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 198.92 ms. Allocated memory is still 88.1 MB. Free memory was 59.2 MB in the beginning and 68.2 MB in the end (delta: -9.1 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.04 ms. Allocated memory is still 88.1 MB. Free memory was 68.2 MB in the beginning and 66.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.36 ms. Allocated memory is still 88.1 MB. Free memory was 66.8 MB in the beginning and 66.1 MB in the end (delta: 731.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 221.73 ms. Allocated memory is still 88.1 MB. Free memory was 66.1 MB in the beginning and 56.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * CodeCheck took 891.52 ms. Allocated memory was 88.1 MB in the beginning and 113.2 MB in the end (delta: 25.2 MB). Free memory was 56.7 MB in the beginning and 65.0 MB in the end (delta: -8.3 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. * Witness Printer took 62.72 ms. Allocated memory is still 113.2 MB. Free memory was 65.0 MB in the beginning and 62.9 MB in the end (delta: 2.1 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...