./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/Addition01-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5248840c-5c7c-4127-b73b-c66cb6685aca/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_5248840c-5c7c-4127-b73b-c66cb6685aca/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5248840c-5c7c-4127-b73b-c66cb6685aca/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5248840c-5c7c-4127-b73b-c66cb6685aca/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/Addition01-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_5248840c-5c7c-4127-b73b-c66cb6685aca/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5248840c-5c7c-4127-b73b-c66cb6685aca/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0c2780d79847d31970febd5cb46fb7efe933c8ec ................................................................................................................................................................................................................................................. 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 04:42:10,787 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:42:10,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:42:10,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:42:10,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:42:10,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:42:10,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:42:10,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:42:10,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:42:10,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:42:10,872 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:42:10,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:42:10,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:42:10,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:42:10,884 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:42:10,890 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:42:10,891 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:42:10,893 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:42:10,897 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:42:10,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:42:10,905 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:42:10,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:42:10,912 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:42:10,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:42:10,917 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:42:10,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:42:10,917 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:42:10,919 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:42:10,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:42:10,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:42:10,921 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:42:10,922 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:42:10,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:42:10,930 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:42:10,931 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:42:10,931 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:42:10,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:42:10,932 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:42:10,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:42:10,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:42:10,935 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:42:10,937 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5248840c-5c7c-4127-b73b-c66cb6685aca/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-28 04:42:10,979 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:42:10,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:42:10,980 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:42:10,981 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:42:10,982 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:42:10,982 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:42:10,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:42:10,982 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:42:10,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:42:10,983 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:42:10,984 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:42:10,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:42:10,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:42:10,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:42:10,985 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:42:10,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:42:10,985 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:42:10,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:42:10,986 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:42:10,986 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:42:10,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:42:10,987 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:42:10,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:42:10,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:42:10,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:42:10,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:42:10,988 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:42:10,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:42:10,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:42:10,990 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_5248840c-5c7c-4127-b73b-c66cb6685aca/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_5248840c-5c7c-4127-b73b-c66cb6685aca/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c2780d79847d31970febd5cb46fb7efe933c8ec [2020-11-28 04:42:11,273 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:42:11,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:42:11,311 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:42:11,313 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:42:11,314 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:42:11,315 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5248840c-5c7c-4127-b73b-c66cb6685aca/bin/ukojak/../../sv-benchmarks/c/recursive/Addition01-2.c [2020-11-28 04:42:11,427 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5248840c-5c7c-4127-b73b-c66cb6685aca/bin/ukojak/data/14594a298/8c53e99ad30c4111ac5d0b52bdbb69e3/FLAG3e428a55f [2020-11-28 04:42:11,892 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:42:11,892 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5248840c-5c7c-4127-b73b-c66cb6685aca/sv-benchmarks/c/recursive/Addition01-2.c [2020-11-28 04:42:11,898 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5248840c-5c7c-4127-b73b-c66cb6685aca/bin/ukojak/data/14594a298/8c53e99ad30c4111ac5d0b52bdbb69e3/FLAG3e428a55f [2020-11-28 04:42:12,266 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5248840c-5c7c-4127-b73b-c66cb6685aca/bin/ukojak/data/14594a298/8c53e99ad30c4111ac5d0b52bdbb69e3 [2020-11-28 04:42:12,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:42:12,270 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:42:12,272 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:42:12,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:42:12,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:42:12,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:42:12" (1/1) ... [2020-11-28 04:42:12,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@732b47ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:12, skipping insertion in model container [2020-11-28 04:42:12,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:42:12" (1/1) ... [2020-11-28 04:42:12,286 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:42:12,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:42:12,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:42:12,497 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:42:12,513 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:42:12,526 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:42:12,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:12 WrapperNode [2020-11-28 04:42:12,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:42:12,528 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:42:12,529 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:42:12,529 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:42:12,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:12" (1/1) ... [2020-11-28 04:42:12,544 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:12" (1/1) ... [2020-11-28 04:42:12,561 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:42:12,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:42:12,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:42:12,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:42:12,570 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:12" (1/1) ... [2020-11-28 04:42:12,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:12" (1/1) ... [2020-11-28 04:42:12,584 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:12" (1/1) ... [2020-11-28 04:42:12,585 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:12" (1/1) ... [2020-11-28 04:42:12,588 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:12" (1/1) ... [2020-11-28 04:42:12,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:12" (1/1) ... [2020-11-28 04:42:12,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:12" (1/1) ... [2020-11-28 04:42:12,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:42:12,594 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:42:12,594 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:42:12,594 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:42:12,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5248840c-5c7c-4127-b73b-c66cb6685aca/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 04:42:12,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:42:12,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:42:12,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:42:12,661 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:42:12,661 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2020-11-28 04:42:12,662 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2020-11-28 04:42:12,997 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:42:12,997 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 04:42:12,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:12 BoogieIcfgContainer [2020-11-28 04:42:12,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:42:13,000 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:42:13,000 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:42:13,011 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:42:13,012 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:12" (1/1) ... [2020-11-28 04:42:13,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:42:13,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:13,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2020-11-28 04:42:13,060 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2020-11-28 04:42:13,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:42:13,065 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:13,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:13,457 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 04:42:13,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:13,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 35 transitions. [2020-11-28 04:42:13,704 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2020-11-28 04:42:13,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:42:13,705 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:13,884 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 04:42:14,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:14,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 26 states and 39 transitions. [2020-11-28 04:42:14,129 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 39 transitions. [2020-11-28 04:42:14,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-28 04:42:14,131 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:14,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:14,577 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:42:15,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:15,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 31 states and 48 transitions. [2020-11-28 04:42:15,705 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 48 transitions. [2020-11-28 04:42:15,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-28 04:42:15,707 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:15,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:15,782 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:42:15,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:15,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 31 states and 44 transitions. [2020-11-28 04:42:15,959 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 44 transitions. [2020-11-28 04:42:15,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-28 04:42:15,961 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:15,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:16,108 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-28 04:42:16,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:16,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 24 states and 33 transitions. [2020-11-28 04:42:16,431 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2020-11-28 04:42:16,432 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:42:16,432 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2020-11-28 04:42:16,438 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-28 04:42:16,523 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-28 04:42:16,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:42:16 ImpRootNode [2020-11-28 04:42:16,526 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:42:16,527 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:42:16,527 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:42:16,527 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:42:16,527 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:12" (3/4) ... [2020-11-28 04:42:16,529 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:42:16,534 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure addition [2020-11-28 04:42:16,539 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-11-28 04:42:16,539 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 04:42:16,539 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:42:16,540 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:42:16,593 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5248840c-5c7c-4127-b73b-c66cb6685aca/bin/ukojak/witness.graphml [2020-11-28 04:42:16,593 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:42:16,598 INFO L168 Benchmark]: Toolchain (without parser) took 4324.36 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 61.9 MB in the beginning and 93.1 MB in the end (delta: -31.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:42:16,599 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 96.5 MB. Free memory was 66.9 MB in the beginning and 66.9 MB in the end (delta: 25.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:42:16,600 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.92 ms. Allocated memory is still 96.5 MB. Free memory was 61.6 MB in the beginning and 73.4 MB in the end (delta: -11.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:16,600 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.57 ms. Allocated memory is still 96.5 MB. Free memory was 73.4 MB in the beginning and 72.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:42:16,601 INFO L168 Benchmark]: Boogie Preprocessor took 31.58 ms. Allocated memory is still 96.5 MB. Free memory was 72.4 MB in the beginning and 71.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:16,602 INFO L168 Benchmark]: RCFGBuilder took 405.42 ms. Allocated memory is still 96.5 MB. Free memory was 71.3 MB in the beginning and 57.2 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:16,602 INFO L168 Benchmark]: CodeCheck took 3526.15 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 56.7 MB in the beginning and 95.2 MB in the end (delta: -38.6 MB). Peak memory consumption was 49.6 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:16,603 INFO L168 Benchmark]: Witness Printer took 66.58 ms. Allocated memory is still 117.4 MB. Free memory was 95.2 MB in the beginning and 93.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:16,610 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 2 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 6, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 300 SDtfs, 196 SDslu, 296 SDs, 0 SdLazy, 1380 SolverSat, 332 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 826 GetRequests, 745 SyntacticMatches, 25 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 978 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 9145 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 10/23 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: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 96.5 MB. Free memory was 66.9 MB in the beginning and 66.9 MB in the end (delta: 25.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 255.92 ms. Allocated memory is still 96.5 MB. Free memory was 61.6 MB in the beginning and 73.4 MB in the end (delta: -11.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.57 ms. Allocated memory is still 96.5 MB. Free memory was 73.4 MB in the beginning and 72.4 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.58 ms. Allocated memory is still 96.5 MB. Free memory was 72.4 MB in the beginning and 71.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 405.42 ms. Allocated memory is still 96.5 MB. Free memory was 71.3 MB in the beginning and 57.2 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 3526.15 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 56.7 MB in the beginning and 95.2 MB in the end (delta: -38.6 MB). Peak memory consumption was 49.6 MB. Max. memory is 16.1 GB. * Witness Printer took 66.58 ms. Allocated memory is still 117.4 MB. Free memory was 95.2 MB in the beginning and 93.1 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...