./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-zilu/benchmark37_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_da5740f5-1541-4b40-96a7-a04334e66001/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_da5740f5-1541-4b40-96a7-a04334e66001/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_da5740f5-1541-4b40-96a7-a04334e66001/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_da5740f5-1541-4b40-96a7-a04334e66001/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-zilu/benchmark37_conjunctive.i -s /tmp/vcloud-vcloud-master/worker/run_dir_da5740f5-1541-4b40-96a7-a04334e66001/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_da5740f5-1541-4b40-96a7-a04334e66001/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 8a833a1b9e7471f6481f3d298fb7b827e4068305 ..................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-03 11:01:16,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 11:01:16,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 11:01:16,936 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 11:01:16,936 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 11:01:16,938 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 11:01:16,940 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 11:01:16,943 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 11:01:16,945 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 11:01:16,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 11:01:16,954 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 11:01:16,955 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 11:01:16,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 11:01:16,958 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 11:01:16,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 11:01:16,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 11:01:16,962 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 11:01:16,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 11:01:16,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 11:01:16,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 11:01:16,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 11:01:16,980 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 11:01:16,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 11:01:16,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 11:01:16,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 11:01:16,990 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 11:01:16,990 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 11:01:16,999 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 11:01:17,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 11:01:17,001 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 11:01:17,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 11:01:17,003 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 11:01:17,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 11:01:17,007 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 11:01:17,009 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 11:01:17,009 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 11:01:17,010 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 11:01:17,010 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 11:01:17,011 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 11:01:17,012 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 11:01:17,013 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 11:01:17,016 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_da5740f5-1541-4b40-96a7-a04334e66001/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2020-12-03 11:01:17,056 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 11:01:17,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 11:01:17,058 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 11:01:17,059 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-03 11:01:17,059 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-03 11:01:17,060 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-03 11:01:17,060 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 11:01:17,060 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 11:01:17,061 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-03 11:01:17,061 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 11:01:17,062 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 11:01:17,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 11:01:17,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 11:01:17,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 11:01:17,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 11:01:17,063 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-03 11:01:17,064 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 11:01:17,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 11:01:17,064 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 11:01:17,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 11:01:17,065 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-03 11:01:17,065 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-03 11:01:17,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 11:01:17,065 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-03 11:01:17,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-03 11:01:17,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 11:01:17,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 11:01:17,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 11:01:17,067 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-03 11:01:17,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 11:01:17,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 11:01:17,070 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_da5740f5-1541-4b40-96a7-a04334e66001/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_da5740f5-1541-4b40-96a7-a04334e66001/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a833a1b9e7471f6481f3d298fb7b827e4068305 [2020-12-03 11:01:17,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 11:01:17,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 11:01:17,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 11:01:17,390 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 11:01:17,391 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 11:01:17,392 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_da5740f5-1541-4b40-96a7-a04334e66001/bin/ukojak/../../sv-benchmarks/c/loop-zilu/benchmark37_conjunctive.i [2020-12-03 11:01:17,481 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_da5740f5-1541-4b40-96a7-a04334e66001/bin/ukojak/data/3332c4685/45594c05f9f74c5eb16efb7af83e7087/FLAG950660b9e [2020-12-03 11:01:17,968 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 11:01:17,968 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_da5740f5-1541-4b40-96a7-a04334e66001/sv-benchmarks/c/loop-zilu/benchmark37_conjunctive.i [2020-12-03 11:01:17,978 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_da5740f5-1541-4b40-96a7-a04334e66001/bin/ukojak/data/3332c4685/45594c05f9f74c5eb16efb7af83e7087/FLAG950660b9e [2020-12-03 11:01:18,358 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_da5740f5-1541-4b40-96a7-a04334e66001/bin/ukojak/data/3332c4685/45594c05f9f74c5eb16efb7af83e7087 [2020-12-03 11:01:18,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 11:01:18,363 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 11:01:18,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 11:01:18,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 11:01:18,374 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 11:01:18,374 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 11:01:18" (1/1) ... [2020-12-03 11:01:18,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d6724ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:01:18, skipping insertion in model container [2020-12-03 11:01:18,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 11:01:18" (1/1) ... [2020-12-03 11:01:18,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 11:01:18,400 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 11:01:18,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 11:01:18,608 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 11:01:18,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 11:01:18,641 INFO L208 MainTranslator]: Completed translation [2020-12-03 11:01:18,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:01:18 WrapperNode [2020-12-03 11:01:18,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 11:01:18,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 11:01:18,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 11:01:18,643 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 11:01:18,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:01:18" (1/1) ... [2020-12-03 11:01:18,662 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:01:18" (1/1) ... [2020-12-03 11:01:18,696 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 11:01:18,698 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 11:01:18,698 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 11:01:18,698 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 11:01:18,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:01:18" (1/1) ... [2020-12-03 11:01:18,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:01:18" (1/1) ... [2020-12-03 11:01:18,710 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:01:18" (1/1) ... [2020-12-03 11:01:18,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:01:18" (1/1) ... [2020-12-03 11:01:18,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:01:18" (1/1) ... [2020-12-03 11:01:18,718 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:01:18" (1/1) ... [2020-12-03 11:01:18,720 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:01:18" (1/1) ... [2020-12-03 11:01:18,722 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 11:01:18,723 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 11:01:18,723 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 11:01:18,723 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 11:01:18,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 11:01:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_da5740f5-1541-4b40-96a7-a04334e66001/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 [2020-12-03 11:01:18,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-03 11:01:18,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 11:01:18,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 11:01:18,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 11:01:19,248 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 11:01:19,248 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-03 11:01:19,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:01:19 BoogieIcfgContainer [2020-12-03 11:01:19,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 11:01:19,251 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-03 11:01:19,252 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-03 11:01:19,263 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-03 11:01:19,264 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:01:19" (1/1) ... [2020-12-03 11:01:19,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 11:01:19,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:01:19,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2020-12-03 11:01:19,337 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2020-12-03 11:01:19,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-03 11:01:19,345 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:01:19,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:01:19,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:01:19,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:01:19,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2020-12-03 11:01:19,666 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2020-12-03 11:01:19,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-03 11:01:19,667 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:01:19,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:01:19,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:01:19,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:01:19,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-12-03 11:01:19,806 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-12-03 11:01:19,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-03 11:01:19,807 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:01:19,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:01:19,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:01:20,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:01:20,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 23 transitions. [2020-12-03 11:01:20,301 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2020-12-03 11:01:20,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-03 11:01:20,303 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:01:20,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:01:20,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:01:20,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:01:20,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 23 states and 33 transitions. [2020-12-03 11:01:20,998 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 33 transitions. [2020-12-03 11:01:20,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-03 11:01:20,999 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:01:21,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:01:21,137 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:01:21,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:01:21,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 26 states and 39 transitions. [2020-12-03 11:01:21,635 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 39 transitions. [2020-12-03 11:01:21,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-03 11:01:21,636 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:01:21,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:01:21,791 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:01:21,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:01:21,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 40 transitions. [2020-12-03 11:01:21,974 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 40 transitions. [2020-12-03 11:01:21,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-03 11:01:21,975 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:01:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:01:22,079 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:01:22,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:01:22,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 32 states and 48 transitions. [2020-12-03 11:01:22,781 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 48 transitions. [2020-12-03 11:01:22,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-03 11:01:22,782 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:01:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:01:22,948 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 11:01:23,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:01:23,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 37 states and 54 transitions. [2020-12-03 11:01:23,818 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 54 transitions. [2020-12-03 11:01:23,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-03 11:01:23,819 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-03 11:01:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 11:01:23,997 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-03 11:01:24,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-03 11:01:24,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2020-12-03 11:01:24,549 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2020-12-03 11:01:24,550 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-03 11:01:24,550 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2020-12-03 11:01:24,557 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-12-03 11:01:24,589 INFO L569 CodeCheckObserver]: Invariant with dag size 6 [2020-12-03 11:01:24,596 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-03 11:01:24,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 11:01:24 ImpRootNode [2020-12-03 11:01:24,597 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-03 11:01:24,597 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 11:01:24,597 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 11:01:24,598 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 11:01:24,598 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 11:01:19" (3/4) ... [2020-12-03 11:01:24,601 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-03 11:01:24,608 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-12-03 11:01:24,608 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-03 11:01:24,608 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 11:01:24,609 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 11:01:24,655 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_da5740f5-1541-4b40-96a7-a04334e66001/bin/ukojak/witness.graphml [2020-12-03 11:01:24,663 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 11:01:24,665 INFO L168 Benchmark]: Toolchain (without parser) took 6301.06 ms. Allocated memory was 86.0 MB in the beginning and 172.0 MB in the end (delta: 86.0 MB). Free memory was 54.8 MB in the beginning and 77.0 MB in the end (delta: -22.2 MB). Peak memory consumption was 63.2 MB. Max. memory is 16.1 GB. [2020-12-03 11:01:24,666 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 86.0 MB. Free memory was 43.8 MB in the beginning and 43.7 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 11:01:24,666 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.80 ms. Allocated memory is still 86.0 MB. Free memory was 54.6 MB in the beginning and 63.6 MB in the end (delta: -9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-03 11:01:24,667 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.52 ms. Allocated memory is still 86.0 MB. Free memory was 63.6 MB in the beginning and 62.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 11:01:24,667 INFO L168 Benchmark]: Boogie Preprocessor took 24.45 ms. Allocated memory is still 86.0 MB. Free memory was 62.2 MB in the beginning and 61.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 11:01:24,668 INFO L168 Benchmark]: RCFGBuilder took 527.68 ms. Allocated memory is still 86.0 MB. Free memory was 61.1 MB in the beginning and 45.0 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-03 11:01:24,668 INFO L168 Benchmark]: CodeCheck took 5345.37 ms. Allocated memory was 86.0 MB in the beginning and 172.0 MB in the end (delta: 86.0 MB). Free memory was 45.0 MB in the beginning and 80.1 MB in the end (delta: -35.1 MB). Peak memory consumption was 51.6 MB. Max. memory is 16.1 GB. [2020-12-03 11:01:24,669 INFO L168 Benchmark]: Witness Printer took 65.95 ms. Allocated memory is still 172.0 MB. Free memory was 80.1 MB in the beginning and 77.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-03 11:01:24,672 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, 2484 SDslu, 512 SDs, 0 SdLazy, 13028 SolverSat, 3140 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 790 GetRequests, 640 SyntacticMatches, 38 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5386 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s 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: 24]: 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: 24]: 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: 23]: Loop Invariant Derived loop invariant: x <= y && y <= 2147483647 - 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 0.24 ms. Allocated memory is still 86.0 MB. Free memory was 43.8 MB in the beginning and 43.7 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 271.80 ms. Allocated memory is still 86.0 MB. Free memory was 54.6 MB in the beginning and 63.6 MB in the end (delta: -9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.52 ms. Allocated memory is still 86.0 MB. Free memory was 63.6 MB in the beginning and 62.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.45 ms. Allocated memory is still 86.0 MB. Free memory was 62.2 MB in the beginning and 61.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 527.68 ms. Allocated memory is still 86.0 MB. Free memory was 61.1 MB in the beginning and 45.0 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * CodeCheck took 5345.37 ms. Allocated memory was 86.0 MB in the beginning and 172.0 MB in the end (delta: 86.0 MB). Free memory was 45.0 MB in the beginning and 80.1 MB in the end (delta: -35.1 MB). Peak memory consumption was 51.6 MB. Max. memory is 16.1 GB. * Witness Printer took 65.95 ms. Allocated memory is still 172.0 MB. Free memory was 80.1 MB in the beginning and 77.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...