./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47797a90-0208-4882-bc16-283ead855e86/bin/ukojak-d1pc8ZmBRL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47797a90-0208-4882-bc16-283ead855e86/bin/ukojak-d1pc8ZmBRL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47797a90-0208-4882-bc16-283ead855e86/bin/ukojak-d1pc8ZmBRL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47797a90-0208-4882-bc16-283ead855e86/bin/ukojak-d1pc8ZmBRL/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47797a90-0208-4882-bc16-283ead855e86/bin/ukojak-d1pc8ZmBRL/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47797a90-0208-4882-bc16-283ead855e86/bin/ukojak-d1pc8ZmBRL --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 9c55a9a6f50b70c8ad02d8f9cdba1133727e3a9a73c5b8d3940178ed4735e2c1 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 06:29:43,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 06:29:43,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 06:29:43,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 06:29:43,147 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 06:29:43,149 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 06:29:43,151 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 06:29:43,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 06:29:43,155 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 06:29:43,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 06:29:43,158 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 06:29:43,160 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 06:29:43,160 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 06:29:43,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 06:29:43,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 06:29:43,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 06:29:43,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 06:29:43,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 06:29:43,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 06:29:43,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 06:29:43,175 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 06:29:43,176 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 06:29:43,178 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 06:29:43,179 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 06:29:43,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 06:29:43,184 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 06:29:43,184 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 06:29:43,186 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 06:29:43,186 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 06:29:43,188 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 06:29:43,188 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 06:29:43,189 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 06:29:43,191 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 06:29:43,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 06:29:43,193 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 06:29:43,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 06:29:43,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 06:29:43,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 06:29:43,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 06:29:43,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 06:29:43,198 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 06:29:43,199 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47797a90-0208-4882-bc16-283ead855e86/bin/ukojak-d1pc8ZmBRL/config/svcomp-Overflow-64bit-Kojak_Default.epf [2021-11-25 06:29:43,221 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 06:29:43,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 06:29:43,222 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 06:29:43,223 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-25 06:29:43,224 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-25 06:29:43,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-25 06:29:43,224 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 06:29:43,225 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 06:29:43,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 06:29:43,225 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 06:29:43,225 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 06:29:43,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 06:29:43,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 06:29:43,226 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-25 06:29:43,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 06:29:43,227 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 06:29:43,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 06:29:43,228 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-25 06:29:43,228 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-25 06:29:43,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 06:29:43,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-25 06:29:43,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 06:29:43,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 06:29:43,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 06:29:43,230 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-25 06:29:43,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 06:29:43,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 06:29:43,230 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_worker_vcloud-master_on_vcloud-master/run_dir_47797a90-0208-4882-bc16-283ead855e86/bin/ukojak-d1pc8ZmBRL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47797a90-0208-4882-bc16-283ead855e86/bin/ukojak-d1pc8ZmBRL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c55a9a6f50b70c8ad02d8f9cdba1133727e3a9a73c5b8d3940178ed4735e2c1 [2021-11-25 06:29:43,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 06:29:43,578 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 06:29:43,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 06:29:43,582 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 06:29:43,584 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 06:29:43,586 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47797a90-0208-4882-bc16-283ead855e86/bin/ukojak-d1pc8ZmBRL/../../sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2.c [2021-11-25 06:29:43,667 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47797a90-0208-4882-bc16-283ead855e86/bin/ukojak-d1pc8ZmBRL/data/32ab5de37/39753525d1654ba3bbfc11d66ddf9407/FLAGc3865a53b [2021-11-25 06:29:44,150 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 06:29:44,151 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47797a90-0208-4882-bc16-283ead855e86/sv-benchmarks/c/termination-crafted-lit/Urban-WST2013-Fig2.c [2021-11-25 06:29:44,161 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47797a90-0208-4882-bc16-283ead855e86/bin/ukojak-d1pc8ZmBRL/data/32ab5de37/39753525d1654ba3bbfc11d66ddf9407/FLAGc3865a53b [2021-11-25 06:29:44,528 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47797a90-0208-4882-bc16-283ead855e86/bin/ukojak-d1pc8ZmBRL/data/32ab5de37/39753525d1654ba3bbfc11d66ddf9407 [2021-11-25 06:29:44,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 06:29:44,532 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 06:29:44,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 06:29:44,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 06:29:44,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 06:29:44,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:29:44" (1/1) ... [2021-11-25 06:29:44,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@578b2872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:44, skipping insertion in model container [2021-11-25 06:29:44,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:29:44" (1/1) ... [2021-11-25 06:29:44,559 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 06:29:44,572 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 06:29:44,747 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 06:29:44,750 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 06:29:44,761 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 06:29:44,773 INFO L208 MainTranslator]: Completed translation [2021-11-25 06:29:44,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:44 WrapperNode [2021-11-25 06:29:44,774 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 06:29:44,776 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 06:29:44,776 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 06:29:44,776 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 06:29:44,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:44" (1/1) ... [2021-11-25 06:29:44,788 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:44" (1/1) ... [2021-11-25 06:29:44,805 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 27 [2021-11-25 06:29:44,806 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 06:29:44,807 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 06:29:44,807 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 06:29:44,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 06:29:44,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:44" (1/1) ... [2021-11-25 06:29:44,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:44" (1/1) ... [2021-11-25 06:29:44,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:44" (1/1) ... [2021-11-25 06:29:44,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:44" (1/1) ... [2021-11-25 06:29:44,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:44" (1/1) ... [2021-11-25 06:29:44,822 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:44" (1/1) ... [2021-11-25 06:29:44,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:44" (1/1) ... [2021-11-25 06:29:44,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 06:29:44,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 06:29:44,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 06:29:44,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 06:29:44,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:29:44" (1/1) ... [2021-11-25 06:29:44,834 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-25 06:29:44,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47797a90-0208-4882-bc16-283ead855e86/bin/ukojak-d1pc8ZmBRL/z3 [2021-11-25 06:29:44,856 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47797a90-0208-4882-bc16-283ead855e86/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-25 06:29:44,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47797a90-0208-4882-bc16-283ead855e86/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-25 06:29:44,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 06:29:44,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 06:29:44,974 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 06:29:44,976 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 06:29:45,107 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 06:29:45,131 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 06:29:45,131 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-25 06:29:45,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:29:45 BoogieIcfgContainer [2021-11-25 06:29:45,134 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 06:29:45,135 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-25 06:29:45,135 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-25 06:29:45,143 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-25 06:29:45,143 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:29:45" (1/1) ... [2021-11-25 06:29:45,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 06:29:45,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:29:45,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2021-11-25 06:29:45,209 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2021-11-25 06:29:45,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-25 06:29:45,212 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:29:45,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:29:45,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:29:45,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 06:29:45,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:29:45,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2021-11-25 06:29:45,428 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-11-25 06:29:45,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-25 06:29:45,430 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:29:45,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:29:45,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:29:45,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 06:29:45,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:29:45,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2021-11-25 06:29:45,566 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2021-11-25 06:29:45,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-25 06:29:45,569 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:29:45,569 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:29:45,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:29:45,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 06:29:45,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:29:45,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2021-11-25 06:29:45,683 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2021-11-25 06:29:45,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 06:29:45,684 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:29:45,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:29:45,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:29:45,750 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 06:29:45,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:29:45,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2021-11-25 06:29:45,790 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2021-11-25 06:29:45,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-25 06:29:45,790 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:29:45,791 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:29:45,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:29:45,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 06:29:45,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:29:45,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 15 states and 16 transitions. [2021-11-25 06:29:45,921 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2021-11-25 06:29:45,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-25 06:29:45,921 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:29:45,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:29:45,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:29:45,972 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 06:29:46,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:29:46,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 14 states and 15 transitions. [2021-11-25 06:29:46,055 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2021-11-25 06:29:46,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-25 06:29:46,055 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:29:46,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:29:46,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:29:46,125 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-25 06:29:46,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:29:46,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2021-11-25 06:29:46,522 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2021-11-25 06:29:46,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 06:29:46,522 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-25 06:29:46,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 06:29:46,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 06:29:46,565 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-25 06:29:47,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-25 06:29:47,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 12 states and 13 transitions. [2021-11-25 06:29:47,090 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2021-11-25 06:29:47,090 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-25 06:29:47,091 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2021-11-25 06:29:47,104 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2021-11-25 06:29:47,195 INFO L560 CodeCheckObserver]: Invariant with dag size 5 [2021-11-25 06:29:47,205 INFO L560 CodeCheckObserver]: Invariant with dag size 10 [2021-11-25 06:29:47,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 06:29:47 ImpRootNode [2021-11-25 06:29:47,207 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-25 06:29:47,208 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 06:29:47,208 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 06:29:47,208 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 06:29:47,209 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:29:45" (3/4) ... [2021-11-25 06:29:47,212 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-25 06:29:47,221 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-25 06:29:47,222 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-25 06:29:47,222 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-25 06:29:47,257 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47797a90-0208-4882-bc16-283ead855e86/bin/ukojak-d1pc8ZmBRL/witness.graphml [2021-11-25 06:29:47,257 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 06:29:47,258 INFO L158 Benchmark]: Toolchain (without parser) took 2725.55ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 51.8MB in the beginning and 49.1MB in the end (delta: 2.8MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. [2021-11-25 06:29:47,258 INFO L158 Benchmark]: CDTParser took 0.61ms. Allocated memory is still 92.3MB. Free memory was 67.6MB in the beginning and 67.6MB in the end (delta: 42.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 06:29:47,259 INFO L158 Benchmark]: CACSL2BoogieTranslator took 241.10ms. Allocated memory is still 92.3MB. Free memory was 51.6MB in the beginning and 69.7MB in the end (delta: -18.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-25 06:29:47,259 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.39ms. Allocated memory is still 92.3MB. Free memory was 69.7MB in the beginning and 68.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 06:29:47,260 INFO L158 Benchmark]: Boogie Preprocessor took 17.72ms. Allocated memory is still 92.3MB. Free memory was 68.3MB in the beginning and 67.4MB in the end (delta: 915.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 06:29:47,261 INFO L158 Benchmark]: RCFGBuilder took 308.91ms. Allocated memory is still 92.3MB. Free memory was 67.4MB in the beginning and 58.6MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 06:29:47,261 INFO L158 Benchmark]: CodeCheck took 2072.59ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 58.3MB in the beginning and 51.0MB in the end (delta: 7.3MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2021-11-25 06:29:47,262 INFO L158 Benchmark]: Witness Printer took 49.09ms. Allocated memory is still 113.2MB. Free memory was 51.0MB in the beginning and 49.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 06:29:47,265 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 12 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 165 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 106 mSDsluCounter, 30 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 109 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 421 IncrementalHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 109 mSolverCounterUnsat, 30 mSDtfsCounter, 421 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 446 GetRequests, 385 SyntacticMatches, 9 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1034 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 138 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 15/16 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: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: 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: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 <= x1 + 2147483648 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (x1 <= 10 && x2 <= 10) && 0 <= x1 + 2147483648 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61ms. Allocated memory is still 92.3MB. Free memory was 67.6MB in the beginning and 67.6MB in the end (delta: 42.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 241.10ms. Allocated memory is still 92.3MB. Free memory was 51.6MB in the beginning and 69.7MB in the end (delta: -18.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.39ms. Allocated memory is still 92.3MB. Free memory was 69.7MB in the beginning and 68.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.72ms. Allocated memory is still 92.3MB. Free memory was 68.3MB in the beginning and 67.4MB in the end (delta: 915.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 308.91ms. Allocated memory is still 92.3MB. Free memory was 67.4MB in the beginning and 58.6MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 2072.59ms. Allocated memory was 92.3MB in the beginning and 113.2MB in the end (delta: 21.0MB). Free memory was 58.3MB in the beginning and 51.0MB in the end (delta: 7.3MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. * Witness Printer took 49.09ms. Allocated memory is still 113.2MB. Free memory was 51.0MB in the beginning and 49.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-25 06:29:47,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47797a90-0208-4882-bc16-283ead855e86/bin/ukojak-d1pc8ZmBRL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE