./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Singapore_v1.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_66712736-014f-4128-aff4-65f49a11bcc7/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_66712736-014f-4128-aff4-65f49a11bcc7/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_66712736-014f-4128-aff4-65f49a11bcc7/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_66712736-014f-4128-aff4-65f49a11bcc7/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted/Singapore_v1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_66712736-014f-4128-aff4-65f49a11bcc7/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_66712736-014f-4128-aff4-65f49a11bcc7/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 6bcad26031a7ce5db51e61de49e1e285209e4512 .............................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:43:58,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:43:58,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:43:58,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:43:58,169 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:43:58,171 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:43:58,172 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:43:58,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:43:58,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:43:58,190 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:43:58,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:43:58,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:43:58,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:43:58,194 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:43:58,195 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:43:58,197 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:43:58,198 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:43:58,199 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:43:58,201 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:43:58,203 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:43:58,205 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:43:58,209 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:43:58,212 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:43:58,213 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:43:58,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:43:58,222 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:43:58,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:43:58,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:43:58,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:43:58,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:43:58,232 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:43:58,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:43:58,235 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:43:58,236 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:43:58,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:43:58,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:43:58,239 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:43:58,239 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:43:58,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:43:58,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:43:58,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:43:58,245 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_66712736-014f-4128-aff4-65f49a11bcc7/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-11-28 04:43:58,274 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:43:58,274 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:43:58,275 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 04:43:58,275 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-28 04:43:58,276 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:43:58,276 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:43:58,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:43:58,277 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:43:58,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:43:58,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:43:58,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 04:43:58,278 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:43:58,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 04:43:58,278 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 04:43:58,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 04:43:58,279 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:43:58,279 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 04:43:58,279 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:43:58,279 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:43:58,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:43:58,280 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:43:58,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:43:58,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:43:58,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:43:58,281 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 04:43:58,281 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:43:58,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:43:58,282 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 04:43:58,282 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_66712736-014f-4128-aff4-65f49a11bcc7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_66712736-014f-4128-aff4-65f49a11bcc7/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6bcad26031a7ce5db51e61de49e1e285209e4512 [2020-11-28 04:43:58,558 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:43:58,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:43:58,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:43:58,587 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:43:58,588 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:43:58,589 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_66712736-014f-4128-aff4-65f49a11bcc7/bin/ukojak/../../sv-benchmarks/c/termination-crafted/Singapore_v1.c [2020-11-28 04:43:58,665 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_66712736-014f-4128-aff4-65f49a11bcc7/bin/ukojak/data/a02bcb7c3/34a063a240cf408da224ec2a411c9c98/FLAG3aaf20634 [2020-11-28 04:43:59,102 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:43:59,103 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_66712736-014f-4128-aff4-65f49a11bcc7/sv-benchmarks/c/termination-crafted/Singapore_v1.c [2020-11-28 04:43:59,109 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_66712736-014f-4128-aff4-65f49a11bcc7/bin/ukojak/data/a02bcb7c3/34a063a240cf408da224ec2a411c9c98/FLAG3aaf20634 [2020-11-28 04:43:59,502 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_66712736-014f-4128-aff4-65f49a11bcc7/bin/ukojak/data/a02bcb7c3/34a063a240cf408da224ec2a411c9c98 [2020-11-28 04:43:59,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:43:59,506 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:43:59,508 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:43:59,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:43:59,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:43:59,512 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:43:59" (1/1) ... [2020-11-28 04:43:59,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a4e304c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:59, skipping insertion in model container [2020-11-28 04:43:59,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:43:59" (1/1) ... [2020-11-28 04:43:59,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:43:59,538 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:43:59,660 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:43:59,673 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:43:59,693 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:43:59,709 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:43:59,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:59 WrapperNode [2020-11-28 04:43:59,710 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:43:59,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:43:59,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:43:59,711 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:43:59,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:59" (1/1) ... [2020-11-28 04:43:59,723 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:59" (1/1) ... [2020-11-28 04:43:59,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:43:59,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:43:59,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:43:59,739 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:43:59,747 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:59" (1/1) ... [2020-11-28 04:43:59,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:59" (1/1) ... [2020-11-28 04:43:59,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:59" (1/1) ... [2020-11-28 04:43:59,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:59" (1/1) ... [2020-11-28 04:43:59,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:59" (1/1) ... [2020-11-28 04:43:59,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:59" (1/1) ... [2020-11-28 04:43:59,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:59" (1/1) ... [2020-11-28 04:43:59,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:43:59,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:43:59,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:43:59,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:43:59,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:43:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_66712736-014f-4128-aff4-65f49a11bcc7/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 04:43:59,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:43:59,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:44:00,125 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:44:00,126 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 04:44:00,128 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:00 BoogieIcfgContainer [2020-11-28 04:44:00,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:44:00,129 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:44:00,129 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:44:00,138 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:44:00,138 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:00" (1/1) ... [2020-11-28 04:44:00,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:44:00,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:44:00,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 21 states and 22 transitions. [2020-11-28 04:44:00,194 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-11-28 04:44:00,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-11-28 04:44:00,196 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:44:00,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:44:00,262 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:44:00,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:44:00,270 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:44:00,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:44:00,306 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:44:00,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:44:00,326 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:44:00,332 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2020-11-28 04:44:00,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:44:00 ImpRootNode [2020-11-28 04:44:00,354 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:44:00,357 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:44:00,357 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:44:00,358 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:44:00,358 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:44:00" (3/4) ... [2020-11-28 04:44:00,360 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:44:00,404 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_66712736-014f-4128-aff4-65f49a11bcc7/bin/ukojak/witness.graphml [2020-11-28 04:44:00,404 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:44:00,407 INFO L168 Benchmark]: Toolchain (without parser) took 899.11 ms. Allocated memory is still 96.5 MB. Free memory was 65.3 MB in the beginning and 52.4 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:00,408 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 73.4 MB. Free memory was 44.3 MB in the beginning and 44.3 MB in the end (delta: 24.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:00,411 INFO L168 Benchmark]: CACSL2BoogieTranslator took 201.87 ms. Allocated memory is still 96.5 MB. Free memory was 65.3 MB in the beginning and 76.1 MB in the end (delta: -10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:00,412 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.80 ms. Allocated memory is still 96.5 MB. Free memory was 76.1 MB in the beginning and 74.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:00,417 INFO L168 Benchmark]: Boogie Preprocessor took 17.09 ms. Allocated memory is still 96.5 MB. Free memory was 74.7 MB in the beginning and 74.0 MB in the end (delta: 746.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:44:00,418 INFO L168 Benchmark]: RCFGBuilder took 370.94 ms. Allocated memory is still 96.5 MB. Free memory was 74.0 MB in the beginning and 62.9 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:00,419 INFO L168 Benchmark]: CodeCheck took 225.72 ms. Allocated memory is still 96.5 MB. Free memory was 62.9 MB in the beginning and 54.2 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:00,419 INFO L168 Benchmark]: Witness Printer took 47.11 ms. Allocated memory is still 96.5 MB. Free memory was 53.8 MB in the beginning and 52.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:44:00,429 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, 21 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - CounterExampleResult [Line: 16]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int x; [L13] int y; [L14] x = __VERIFIER_nondet_int() [L15] y = __VERIFIER_nondet_int() [L16] x + y * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 73.4 MB. Free memory was 44.3 MB in the beginning and 44.3 MB in the end (delta: 24.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 201.87 ms. Allocated memory is still 96.5 MB. Free memory was 65.3 MB in the beginning and 76.1 MB in the end (delta: -10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 27.80 ms. Allocated memory is still 96.5 MB. Free memory was 76.1 MB in the beginning and 74.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.09 ms. Allocated memory is still 96.5 MB. Free memory was 74.7 MB in the beginning and 74.0 MB in the end (delta: 746.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 370.94 ms. Allocated memory is still 96.5 MB. Free memory was 74.0 MB in the beginning and 62.9 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 225.72 ms. Allocated memory is still 96.5 MB. Free memory was 62.9 MB in the beginning and 54.2 MB in the end (delta: 8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Witness Printer took 47.11 ms. Allocated memory is still 96.5 MB. Free memory was 53.8 MB in the beginning and 52.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...