./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/cstrcmp.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ad1212dc-ba44-40cc-9404-d045459cc6d7/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ad1212dc-ba44-40cc-9404-d045459cc6d7/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ad1212dc-ba44-40cc-9404-d045459cc6d7/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ad1212dc-ba44-40cc-9404-d045459cc6d7/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/cstrcmp.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ad1212dc-ba44-40cc-9404-d045459cc6d7/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ad1212dc-ba44-40cc-9404-d045459cc6d7/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 256a9ac0f321f0d2863fb720d2ae6cb61570c373 .................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 16:14:13,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:14:13,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:14:13,106 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:14:13,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:14:13,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:14:13,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:14:13,140 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:14:13,143 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:14:13,153 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:14:13,154 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:14:13,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:14:13,158 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:14:13,161 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:14:13,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:14:13,166 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:14:13,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:14:13,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:14:13,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:14:13,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:14:13,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:14:13,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:14:13,191 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:14:13,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:14:13,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:14:13,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:14:13,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:14:13,204 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:14:13,205 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:14:13,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:14:13,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:14:13,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:14:13,211 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:14:13,213 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:14:13,214 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:14:13,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:14:13,216 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:14:13,216 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:14:13,217 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:14:13,218 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:14:13,220 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:14:13,226 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ad1212dc-ba44-40cc-9404-d045459cc6d7/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-12-01 16:14:13,274 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:14:13,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:14:13,277 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:14:13,277 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:14:13,278 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:14:13,278 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:14:13,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:14:13,279 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 16:14:13,279 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:14:13,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:14:13,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:14:13,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:14:13,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:14:13,282 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-01 16:14:13,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:14:13,283 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:14:13,283 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:14:13,283 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:14:13,283 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:14:13,284 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:14:13,284 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:14:13,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:14:13,285 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:14:13,285 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:14:13,285 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:14:13,286 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:14:13,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:14:13,286 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:14:13,287 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_ad1212dc-ba44-40cc-9404-d045459cc6d7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ad1212dc-ba44-40cc-9404-d045459cc6d7/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 256a9ac0f321f0d2863fb720d2ae6cb61570c373 [2020-12-01 16:14:13,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:14:13,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:14:13,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:14:13,693 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:14:13,694 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:14:13,695 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ad1212dc-ba44-40cc-9404-d045459cc6d7/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/cstrcmp.c [2020-12-01 16:14:13,774 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ad1212dc-ba44-40cc-9404-d045459cc6d7/bin/ukojak/data/b33aa69fd/b75868497c944cc498faed3200a49832/FLAGb90192416 [2020-12-01 16:14:14,259 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:14:14,260 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ad1212dc-ba44-40cc-9404-d045459cc6d7/sv-benchmarks/c/termination-crafted-lit/cstrcmp.c [2020-12-01 16:14:14,270 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ad1212dc-ba44-40cc-9404-d045459cc6d7/bin/ukojak/data/b33aa69fd/b75868497c944cc498faed3200a49832/FLAGb90192416 [2020-12-01 16:14:14,627 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ad1212dc-ba44-40cc-9404-d045459cc6d7/bin/ukojak/data/b33aa69fd/b75868497c944cc498faed3200a49832 [2020-12-01 16:14:14,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:14:14,631 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:14:14,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:14:14,637 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:14:14,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:14:14,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:14:14" (1/1) ... [2020-12-01 16:14:14,652 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ff9b8d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:14:14, skipping insertion in model container [2020-12-01 16:14:14,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:14:14" (1/1) ... [2020-12-01 16:14:14,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:14:14,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:14:14,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:14:14,985 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:14:15,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:14:15,045 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:14:15,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:14:15 WrapperNode [2020-12-01 16:14:15,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:14:15,049 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:14:15,050 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:14:15,050 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:14:15,060 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:14:15" (1/1) ... [2020-12-01 16:14:15,074 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:14:15" (1/1) ... [2020-12-01 16:14:15,101 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:14:15,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:14:15,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:14:15,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:14:15,117 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:14:15" (1/1) ... [2020-12-01 16:14:15,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:14:15" (1/1) ... [2020-12-01 16:14:15,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:14:15" (1/1) ... [2020-12-01 16:14:15,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:14:15" (1/1) ... [2020-12-01 16:14:15,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:14:15" (1/1) ... [2020-12-01 16:14:15,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:14:15" (1/1) ... [2020-12-01 16:14:15,131 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:14:15" (1/1) ... [2020-12-01 16:14:15,133 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:14:15,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:14:15,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:14:15,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:14:15,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:14:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad1212dc-ba44-40cc-9404-d045459cc6d7/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 [2020-12-01 16:14:15,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 16:14:15,218 INFO L130 BoogieDeclarations]: Found specification of procedure build_nondet_String [2020-12-01 16:14:15,218 INFO L138 BoogieDeclarations]: Found implementation of procedure build_nondet_String [2020-12-01 16:14:15,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 16:14:15,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:14:15,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:14:15,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 16:14:15,708 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:14:15,709 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-01 16:14:15,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:14:15 BoogieIcfgContainer [2020-12-01 16:14:15,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:14:15,713 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:14:15,713 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:14:15,726 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:14:15,727 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:14:15" (1/1) ... [2020-12-01 16:14:15,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:14:15,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:14:15,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2020-12-01 16:14:15,786 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2020-12-01 16:14:15,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 16:14:15,788 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:14:15,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:14:15,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:14:16,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:14:16,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 17 states and 19 transitions. [2020-12-01 16:14:16,028 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2020-12-01 16:14:16,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 16:14:16,029 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:14:16,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:14:16,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:14:16,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:14:16,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2020-12-01 16:14:16,178 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2020-12-01 16:14:16,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 16:14:16,179 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:14:16,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:14:16,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:14:16,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:14:16,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 15 states and 17 transitions. [2020-12-01 16:14:16,244 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2020-12-01 16:14:16,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:14:16,245 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:14:16,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:14:16,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:14:16,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:14:16,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2020-12-01 16:14:16,471 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2020-12-01 16:14:16,475 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 16:14:16,475 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2020-12-01 16:14:16,487 INFO L765 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2020-12-01 16:14:16,519 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 16:14:16,524 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 16:14:16,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:14:16 ImpRootNode [2020-12-01 16:14:16,529 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:14:16,530 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:14:16,530 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:14:16,531 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:14:16,531 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:14:15" (3/4) ... [2020-12-01 16:14:16,535 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 16:14:16,552 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure build_nondet_String [2020-12-01 16:14:16,559 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-12-01 16:14:16,559 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-01 16:14:16,559 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 16:14:16,626 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ad1212dc-ba44-40cc-9404-d045459cc6d7/bin/ukojak/witness.graphml [2020-12-01 16:14:16,626 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:14:16,629 INFO L168 Benchmark]: Toolchain (without parser) took 1996.57 ms. Allocated memory was 109.1 MB in the beginning and 138.4 MB in the end (delta: 29.4 MB). Free memory was 82.1 MB in the beginning and 84.6 MB in the end (delta: -2.5 MB). Peak memory consumption was 27.7 MB. Max. memory is 16.1 GB. [2020-12-01 16:14:16,629 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 109.1 MB. Free memory is still 65.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:14:16,630 INFO L168 Benchmark]: CACSL2BoogieTranslator took 412.42 ms. Allocated memory is still 109.1 MB. Free memory was 82.1 MB in the beginning and 86.6 MB in the end (delta: -4.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:14:16,631 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.05 ms. Allocated memory is still 109.1 MB. Free memory was 86.6 MB in the beginning and 85.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:14:16,632 INFO L168 Benchmark]: Boogie Preprocessor took 28.34 ms. Allocated memory is still 109.1 MB. Free memory was 85.2 MB in the beginning and 83.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:14:16,632 INFO L168 Benchmark]: RCFGBuilder took 577.16 ms. Allocated memory is still 109.1 MB. Free memory was 83.9 MB in the beginning and 63.6 MB in the end (delta: 20.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-12-01 16:14:16,633 INFO L168 Benchmark]: CodeCheck took 816.27 ms. Allocated memory was 109.1 MB in the beginning and 138.4 MB in the end (delta: 29.4 MB). Free memory was 63.6 MB in the beginning and 88.0 MB in the end (delta: -24.5 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:14:16,634 INFO L168 Benchmark]: Witness Printer took 96.64 ms. Allocated memory is still 138.4 MB. Free memory was 88.0 MB in the beginning and 84.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 16:14:16,648 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, 18 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 5, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 40 SDtfs, 42 SDslu, 0 SDs, 0 SdLazy, 146 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 192 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 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: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: 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: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 109.1 MB. Free memory is still 65.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 412.42 ms. Allocated memory is still 109.1 MB. Free memory was 82.1 MB in the beginning and 86.6 MB in the end (delta: -4.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.05 ms. Allocated memory is still 109.1 MB. Free memory was 86.6 MB in the beginning and 85.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.34 ms. Allocated memory is still 109.1 MB. Free memory was 85.2 MB in the beginning and 83.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 577.16 ms. Allocated memory is still 109.1 MB. Free memory was 83.9 MB in the beginning and 63.6 MB in the end (delta: 20.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * CodeCheck took 816.27 ms. Allocated memory was 109.1 MB in the beginning and 138.4 MB in the end (delta: 29.4 MB). Free memory was 63.6 MB in the beginning and 88.0 MB in the end (delta: -24.5 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. * Witness Printer took 96.64 ms. Allocated memory is still 138.4 MB. Free memory was 88.0 MB in the beginning and 84.6 MB in the end (delta: 3.5 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...