./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.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_c32ed7bd-66e4-4449-8d9b-f88d00a099bd/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c32ed7bd-66e4-4449-8d9b-f88d00a099bd/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c32ed7bd-66e4-4449-8d9b-f88d00a099bd/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c32ed7bd-66e4-4449-8d9b-f88d00a099bd/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c32ed7bd-66e4-4449-8d9b-f88d00a099bd/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c32ed7bd-66e4-4449-8d9b-f88d00a099bd/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 7e9d7ee8b64b2fe79b2fb3806ae1ecb1089e2e41 ..................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:21:21,120 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:21:21,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:21:21,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:21:21,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:21:21,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:21:21,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:21:21,196 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:21:21,199 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:21:21,204 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:21:21,206 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:21:21,209 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:21:21,210 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:21:21,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:21:21,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:21:21,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:21:21,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:21:21,229 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:21:21,233 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:21:21,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:21:21,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:21:21,251 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:21:21,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:21:21,255 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:21:21,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:21:21,263 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:21:21,264 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:21:21,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:21:21,267 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:21:21,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:21:21,269 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:21:21,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:21:21,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:21:21,275 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:21:21,276 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:21:21,277 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:21:21,278 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:21:21,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:21:21,278 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:21:21,280 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:21:21,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:21:21,284 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c32ed7bd-66e4-4449-8d9b-f88d00a099bd/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-30 00:21:21,329 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:21:21,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:21:21,337 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 00:21:21,338 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-30 00:21:21,338 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:21:21,339 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:21:21,339 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:21:21,339 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:21:21,340 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:21:21,340 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:21:21,341 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:21:21,341 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:21:21,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:21:21,342 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 00:21:21,342 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:21:21,342 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:21:21,342 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:21:21,343 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-30 00:21:21,343 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-30 00:21:21,343 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:21:21,343 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:21:21,344 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 00:21:21,344 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:21:21,344 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:21:21,344 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:21:21,345 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-30 00:21:21,345 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:21:21,345 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:21:21,345 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_c32ed7bd-66e4-4449-8d9b-f88d00a099bd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c32ed7bd-66e4-4449-8d9b-f88d00a099bd/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7e9d7ee8b64b2fe79b2fb3806ae1ecb1089e2e41 [2020-11-30 00:21:21,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:21:21,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:21:21,742 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:21:21,746 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:21:21,747 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:21:21,749 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c32ed7bd-66e4-4449-8d9b-f88d00a099bd/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c [2020-11-30 00:21:21,843 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c32ed7bd-66e4-4449-8d9b-f88d00a099bd/bin/ukojak/data/89ccb54e0/bfb5824bb63e475bab889f96a8f3f41b/FLAG23fa2cfe7 [2020-11-30 00:21:22,348 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:21:22,349 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c32ed7bd-66e4-4449-8d9b-f88d00a099bd/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig1.c [2020-11-30 00:21:22,357 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c32ed7bd-66e4-4449-8d9b-f88d00a099bd/bin/ukojak/data/89ccb54e0/bfb5824bb63e475bab889f96a8f3f41b/FLAG23fa2cfe7 [2020-11-30 00:21:22,718 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c32ed7bd-66e4-4449-8d9b-f88d00a099bd/bin/ukojak/data/89ccb54e0/bfb5824bb63e475bab889f96a8f3f41b [2020-11-30 00:21:22,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:21:22,722 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:21:22,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:21:22,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:21:22,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:21:22,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:21:22" (1/1) ... [2020-11-30 00:21:22,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c2e9714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:21:22, skipping insertion in model container [2020-11-30 00:21:22,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:21:22" (1/1) ... [2020-11-30 00:21:22,742 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:21:22,757 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:21:22,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:21:22,953 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:21:22,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:21:22,982 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:21:22,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:21:22 WrapperNode [2020-11-30 00:21:22,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:21:22,985 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:21:22,985 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:21:22,985 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:21:22,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:21:22" (1/1) ... [2020-11-30 00:21:23,002 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:21:22" (1/1) ... [2020-11-30 00:21:23,022 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:21:23,024 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:21:23,024 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:21:23,024 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:21:23,034 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:21:22" (1/1) ... [2020-11-30 00:21:23,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:21:22" (1/1) ... [2020-11-30 00:21:23,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:21:22" (1/1) ... [2020-11-30 00:21:23,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:21:22" (1/1) ... [2020-11-30 00:21:23,039 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:21:22" (1/1) ... [2020-11-30 00:21:23,043 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:21:22" (1/1) ... [2020-11-30 00:21:23,044 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:21:22" (1/1) ... [2020-11-30 00:21:23,046 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:21:23,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:21:23,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:21:23,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:21:23,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:21:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c32ed7bd-66e4-4449-8d9b-f88d00a099bd/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 [2020-11-30 00:21:23,138 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:21:23,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:21:23,478 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:21:23,478 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-30 00:21:23,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:21:23 BoogieIcfgContainer [2020-11-30 00:21:23,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:21:23,482 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-30 00:21:23,482 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-30 00:21:23,511 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-30 00:21:23,512 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:21:23" (1/1) ... [2020-11-30 00:21:23,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:21:23,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:21:23,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2020-11-30 00:21:23,577 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-11-30 00:21:23,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 00:21:23,580 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:21:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:21:23,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:21:23,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:21:23,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2020-11-30 00:21:23,929 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2020-11-30 00:21:23,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 00:21:23,929 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:21:23,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:21:23,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:21:24,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:21:24,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 18 states and 28 transitions. [2020-11-30 00:21:24,121 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 28 transitions. [2020-11-30 00:21:24,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 00:21:24,124 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:21:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:21:24,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:21:24,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:21:24,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 20 states and 32 transitions. [2020-11-30 00:21:24,448 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 32 transitions. [2020-11-30 00:21:24,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 00:21:24,448 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:21:24,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:21:24,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:21:24,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:21:24,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 22 states and 36 transitions. [2020-11-30 00:21:24,804 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 36 transitions. [2020-11-30 00:21:24,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 00:21:24,805 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:21:24,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:21:24,896 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:21:25,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:21:25,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 22 states and 35 transitions. [2020-11-30 00:21:25,001 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 35 transitions. [2020-11-30 00:21:25,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 00:21:25,001 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:21:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:21:25,040 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:21:25,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:21:25,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 23 states and 36 transitions. [2020-11-30 00:21:25,263 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 36 transitions. [2020-11-30 00:21:25,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 00:21:25,264 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:21:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:21:25,309 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 00:21:25,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:21:25,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 25 states and 38 transitions. [2020-11-30 00:21:25,594 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2020-11-30 00:21:25,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 00:21:25,594 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:21:25,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:21:25,644 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:21:25,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:21:25,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2020-11-30 00:21:25,813 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2020-11-30 00:21:25,813 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:21:25,814 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2020-11-30 00:21:25,825 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-11-30 00:21:25,899 INFO L569 CodeCheckObserver]: Invariant with dag size 6 [2020-11-30 00:21:25,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 30.11 12:21:25 ImpRootNode [2020-11-30 00:21:25,910 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-30 00:21:25,911 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:21:25,911 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:21:25,912 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:21:25,912 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:21:23" (3/4) ... [2020-11-30 00:21:25,916 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:21:25,924 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-30 00:21:25,924 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-30 00:21:25,925 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:21:25,975 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c32ed7bd-66e4-4449-8d9b-f88d00a099bd/bin/ukojak/witness.graphml [2020-11-30 00:21:25,976 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:21:25,978 INFO L168 Benchmark]: Toolchain (without parser) took 3254.52 ms. Allocated memory was 86.0 MB in the beginning and 136.3 MB in the end (delta: 50.3 MB). Free memory was 46.1 MB in the beginning and 84.6 MB in the end (delta: -38.5 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:21:25,979 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 86.0 MB. Free memory was 62.1 MB in the beginning and 62.1 MB in the end (delta: 46.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:21:25,980 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.85 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 45.8 MB in the beginning and 91.3 MB in the end (delta: -45.5 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:21:25,981 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.79 ms. Allocated memory is still 113.2 MB. Free memory was 91.3 MB in the beginning and 89.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:21:25,982 INFO L168 Benchmark]: Boogie Preprocessor took 22.77 ms. Allocated memory is still 113.2 MB. Free memory was 89.9 MB in the beginning and 89.3 MB in the end (delta: 671.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:21:25,983 INFO L168 Benchmark]: RCFGBuilder took 433.84 ms. Allocated memory is still 113.2 MB. Free memory was 89.3 MB in the beginning and 78.0 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:21:25,984 INFO L168 Benchmark]: CodeCheck took 2428.54 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 78.0 MB in the beginning and 86.7 MB in the end (delta: -8.7 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:21:25,985 INFO L168 Benchmark]: Witness Printer took 64.76 ms. Allocated memory is still 136.3 MB. Free memory was 86.7 MB in the beginning and 84.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:21:25,990 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, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.2s, OverallIterations: 9, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 768 SDtfs, 1558 SDslu, 2124 SDs, 0 SdLazy, 4692 SolverSat, 922 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 484 GetRequests, 422 SyntacticMatches, 14 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 973 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 50 NumberOfCodeBlocks, 50 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 610 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 10/10 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: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: 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: 18]: Loop Invariant Derived loop invariant: x <= 2147483647 && y <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 86.0 MB. Free memory was 62.1 MB in the beginning and 62.1 MB in the end (delta: 46.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 259.85 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 45.8 MB in the beginning and 91.3 MB in the end (delta: -45.5 MB). Peak memory consumption was 12.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.79 ms. Allocated memory is still 113.2 MB. Free memory was 91.3 MB in the beginning and 89.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.77 ms. Allocated memory is still 113.2 MB. Free memory was 89.9 MB in the beginning and 89.3 MB in the end (delta: 671.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 433.84 ms. Allocated memory is still 113.2 MB. Free memory was 89.3 MB in the beginning and 78.0 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 2428.54 ms. Allocated memory was 113.2 MB in the beginning and 136.3 MB in the end (delta: 23.1 MB). Free memory was 78.0 MB in the beginning and 86.7 MB in the end (delta: -8.7 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. * Witness Printer took 64.76 ms. Allocated memory is still 136.3 MB. Free memory was 86.7 MB in the beginning and 84.6 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...