./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_49cb031e-3bd2-4512-bcc4-cf6c05bf32d7/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_49cb031e-3bd2-4512-bcc4-cf6c05bf32d7/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_49cb031e-3bd2-4512-bcc4-cf6c05bf32d7/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_49cb031e-3bd2-4512-bcc4-cf6c05bf32d7/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_49cb031e-3bd2-4512-bcc4-cf6c05bf32d7/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_49cb031e-3bd2-4512-bcc4-cf6c05bf32d7/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 835dc6725bef5f7d15ae0e4368f1a97f9d2b8c09 .............................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:44:15,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:44:15,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:44:15,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:44:15,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:44:15,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:44:15,207 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:44:15,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:44:15,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:44:15,220 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:44:15,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:44:15,224 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:44:15,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:44:15,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:44:15,230 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:44:15,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:44:15,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:44:15,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:44:15,241 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:44:15,244 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:44:15,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:44:15,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:44:15,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:44:15,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:44:15,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:44:15,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:44:15,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:44:15,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:44:15,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:44:15,257 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:44:15,257 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:44:15,258 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:44:15,260 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:44:15,261 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:44:15,262 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:44:15,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:44:15,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:44:15,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:44:15,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:44:15,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:44:15,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:44:15,267 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_49cb031e-3bd2-4512-bcc4-cf6c05bf32d7/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-28 04:44:15,306 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:44:15,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:44:15,308 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:44:15,308 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:44:15,309 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:44:15,309 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:44:15,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:44:15,310 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:44:15,310 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:44:15,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:44:15,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:44:15,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:44:15,311 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:44:15,311 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 04:44:15,311 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:44:15,311 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:44:15,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:44:15,312 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:44:15,312 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:44:15,312 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:44:15,320 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:44:15,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:44:15,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:44:15,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:44:15,321 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:44:15,322 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:44:15,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:44:15,322 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:44:15,323 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_49cb031e-3bd2-4512-bcc4-cf6c05bf32d7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_49cb031e-3bd2-4512-bcc4-cf6c05bf32d7/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 835dc6725bef5f7d15ae0e4368f1a97f9d2b8c09 [2020-11-28 04:44:15,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:44:15,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:44:15,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:44:15,625 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:44:15,626 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:44:15,627 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_49cb031e-3bd2-4512-bcc4-cf6c05bf32d7/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c [2020-11-28 04:44:15,708 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_49cb031e-3bd2-4512-bcc4-cf6c05bf32d7/bin/ukojak/data/a6be6b22e/292dc1f502954a1cbbf729be59015c0e/FLAG485b0d802 [2020-11-28 04:44:16,308 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:44:16,308 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_49cb031e-3bd2-4512-bcc4-cf6c05bf32d7/sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c [2020-11-28 04:44:16,315 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_49cb031e-3bd2-4512-bcc4-cf6c05bf32d7/bin/ukojak/data/a6be6b22e/292dc1f502954a1cbbf729be59015c0e/FLAG485b0d802 [2020-11-28 04:44:16,609 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_49cb031e-3bd2-4512-bcc4-cf6c05bf32d7/bin/ukojak/data/a6be6b22e/292dc1f502954a1cbbf729be59015c0e [2020-11-28 04:44:16,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:44:16,625 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:44:16,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:44:16,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:44:16,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:44:16,635 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a881ede and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16, skipping insertion in model container [2020-11-28 04:44:16,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,650 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:44:16,664 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:44:16,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:44:16,802 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:44:16,817 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:44:16,828 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:44:16,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16 WrapperNode [2020-11-28 04:44:16,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:44:16,830 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:44:16,830 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:44:16,830 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:44:16,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:44:16,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:44:16,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:44:16,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:44:16,869 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,870 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... [2020-11-28 04:44:16,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:44:16,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:44:16,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:44:16,880 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:44:16,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:44:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_49cb031e-3bd2-4512-bcc4-cf6c05bf32d7/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:44:16,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:44:16,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:44:17,365 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:44:17,365 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 04:44:17,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:17 BoogieIcfgContainer [2020-11-28 04:44:17,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:44:17,368 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:44:17,368 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:44:17,379 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:44:17,379 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:17" (1/1) ... [2020-11-28 04:44:17,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:44:17,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:17,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 22 states and 25 transitions. [2020-11-28 04:44:17,428 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2020-11-28 04:44:17,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:44:17,430 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:17,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:17,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:17,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:17,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 26 states and 34 transitions. [2020-11-28 04:44:17,700 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2020-11-28 04:44:17,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:44:17,700 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:17,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:17,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:17,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:17,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 25 states and 33 transitions. [2020-11-28 04:44:17,765 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2020-11-28 04:44:17,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:44:17,766 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:17,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:17,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:17,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:17,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 29 states and 44 transitions. [2020-11-28 04:44:17,966 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 44 transitions. [2020-11-28 04:44:17,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:44:17,968 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:17,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:17,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:18,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:18,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 31 states and 47 transitions. [2020-11-28 04:44:18,070 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 47 transitions. [2020-11-28 04:44:18,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:44:18,071 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:18,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:18,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:18,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 33 states and 50 transitions. [2020-11-28 04:44:18,324 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 50 transitions. [2020-11-28 04:44:18,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:44:18,324 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:18,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:18,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:18,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:18,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 38 states and 60 transitions. [2020-11-28 04:44:18,708 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 60 transitions. [2020-11-28 04:44:18,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:44:18,709 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:18,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:18,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:19,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:19,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 40 states and 65 transitions. [2020-11-28 04:44:19,109 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 65 transitions. [2020-11-28 04:44:19,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:44:19,110 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:19,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:19,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:19,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 42 states and 68 transitions. [2020-11-28 04:44:19,282 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 68 transitions. [2020-11-28 04:44:19,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:44:19,283 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:19,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:19,344 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:19,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:19,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 42 states and 67 transitions. [2020-11-28 04:44:19,433 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 67 transitions. [2020-11-28 04:44:19,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:44:19,434 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:19,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:19,551 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:20,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:20,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 46 states and 74 transitions. [2020-11-28 04:44:20,144 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 74 transitions. [2020-11-28 04:44:20,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:44:20,144 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:20,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:20,169 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 04:44:20,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:20,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 48 states and 76 transitions. [2020-11-28 04:44:20,474 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 76 transitions. [2020-11-28 04:44:20,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:44:20,475 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:20,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:20,488 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 04:44:20,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:20,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 50 states and 77 transitions. [2020-11-28 04:44:20,684 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 77 transitions. [2020-11-28 04:44:20,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:44:20,685 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:20,752 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:20,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:20,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 50 states and 75 transitions. [2020-11-28 04:44:20,930 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 75 transitions. [2020-11-28 04:44:20,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:44:20,931 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:20,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:20,943 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:21,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:21,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 50 states and 73 transitions. [2020-11-28 04:44:21,030 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 73 transitions. [2020-11-28 04:44:21,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:44:21,030 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:21,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:44:21,052 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:44:21,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:21,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2020-11-28 04:44:21,264 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2020-11-28 04:44:21,264 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:44:21,264 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 16 iterations. [2020-11-28 04:44:21,271 INFO L765 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2020-11-28 04:44:21,399 INFO L569 CodeCheckObserver]: Invariant with dag size 10 [2020-11-28 04:44:21,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:44:21 ImpRootNode [2020-11-28 04:44:21,409 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:44:21,410 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:44:21,410 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:44:21,410 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:44:21,411 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:17" (3/4) ... [2020-11-28 04:44:21,414 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:44:21,423 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-28 04:44:21,424 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-28 04:44:21,424 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:44:21,478 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_49cb031e-3bd2-4512-bcc4-cf6c05bf32d7/bin/ukojak/witness.graphml [2020-11-28 04:44:21,486 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:44:21,488 INFO L168 Benchmark]: Toolchain (without parser) took 4862.10 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 90.3 MB in the beginning and 101.1 MB in the end (delta: -10.8 MB). Peak memory consumption was 13.3 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:21,490 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 77.6 MB. Free memory was 50.8 MB in the beginning and 50.8 MB in the end (delta: 53.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:21,493 INFO L168 Benchmark]: CACSL2BoogieTranslator took 200.67 ms. Allocated memory is still 111.1 MB. Free memory was 89.9 MB in the beginning and 81.3 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:21,494 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.48 ms. Allocated memory is still 111.1 MB. Free memory was 81.3 MB in the beginning and 80.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:21,497 INFO L168 Benchmark]: Boogie Preprocessor took 18.83 ms. Allocated memory is still 111.1 MB. Free memory was 80.1 MB in the beginning and 79.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:21,502 INFO L168 Benchmark]: RCFGBuilder took 487.80 ms. Allocated memory is still 111.1 MB. Free memory was 79.0 MB in the beginning and 67.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:21,503 INFO L168 Benchmark]: CodeCheck took 4040.89 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 67.0 MB in the beginning and 104.2 MB in the end (delta: -37.2 MB). Peak memory consumption was 55.3 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:21,503 INFO L168 Benchmark]: Witness Printer took 76.83 ms. Allocated memory is still 134.2 MB. Free memory was 104.2 MB in the beginning and 101.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:21,506 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, 22 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.8s, OverallIterations: 16, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 155648 SDtfs, 223556 SDslu, 205076 SDs, 0 SdLazy, 668310 SolverSat, 143418 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1196 GetRequests, 1069 SyntacticMatches, 39 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3596 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 115 NumberOfCodeBlocks, 115 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 1937 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 14 PerfectInterpolantSequences, 21/22 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: 30]: 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: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: 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: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (x <= 2147483647 && 0 <= x + 2147483648) && y <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 77.6 MB. Free memory was 50.8 MB in the beginning and 50.8 MB in the end (delta: 53.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 200.67 ms. Allocated memory is still 111.1 MB. Free memory was 89.9 MB in the beginning and 81.3 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.48 ms. Allocated memory is still 111.1 MB. Free memory was 81.3 MB in the beginning and 80.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.83 ms. Allocated memory is still 111.1 MB. Free memory was 80.1 MB in the beginning and 79.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 487.80 ms. Allocated memory is still 111.1 MB. Free memory was 79.0 MB in the beginning and 67.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 4040.89 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 67.0 MB in the beginning and 104.2 MB in the end (delta: -37.2 MB). Peak memory consumption was 55.3 MB. Max. memory is 16.1 GB. * Witness Printer took 76.83 ms. Allocated memory is still 134.2 MB. Free memory was 104.2 MB in the beginning and 101.1 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...