./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive/EvenOdd03WithOverflowBug.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7053f93c-6b08-4d0f-bae8-857ed1ed0984/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7053f93c-6b08-4d0f-bae8-857ed1ed0984/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7053f93c-6b08-4d0f-bae8-857ed1ed0984/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7053f93c-6b08-4d0f-bae8-857ed1ed0984/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive/EvenOdd03WithOverflowBug.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7053f93c-6b08-4d0f-bae8-857ed1ed0984/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7053f93c-6b08-4d0f-bae8-857ed1ed0984/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --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 32bit --witnessprinter.graph.data.programhash 04682225c8f8ef1d718e2eff7a5dbc28147daac3b8dcdca523479af4f0e32241 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:51:26,999 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:51:27,142 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7053f93c-6b08-4d0f-bae8-857ed1ed0984/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-24 22:51:27,149 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:51:27,150 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:51:27,178 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:51:27,179 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:51:27,179 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:51:27,181 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:51:27,183 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:51:27,184 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:51:27,185 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:51:27,186 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:51:27,190 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:51:27,191 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:51:27,191 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:51:27,192 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:51:27,193 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:51:27,193 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:51:27,194 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 22:51:27,194 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:51:27,195 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:51:27,195 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:51:27,196 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:51:27,196 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:51:27,197 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:51:27,197 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:51:27,198 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:51:27,198 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:51:27,199 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:51:27,200 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:51:27,200 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:51:27,201 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:51:27,201 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:51:27,201 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:51:27,201 INFO L153 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_7053f93c-6b08-4d0f-bae8-857ed1ed0984/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7053f93c-6b08-4d0f-bae8-857ed1ed0984/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 04682225c8f8ef1d718e2eff7a5dbc28147daac3b8dcdca523479af4f0e32241 [2023-11-24 22:51:27,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:51:27,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:51:27,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:51:27,675 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:51:27,675 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:51:27,677 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7053f93c-6b08-4d0f-bae8-857ed1ed0984/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/recursive/EvenOdd03WithOverflowBug.c [2023-11-24 22:51:30,642 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:51:30,914 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:51:30,914 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7053f93c-6b08-4d0f-bae8-857ed1ed0984/sv-benchmarks/c/recursive/EvenOdd03WithOverflowBug.c [2023-11-24 22:51:30,922 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7053f93c-6b08-4d0f-bae8-857ed1ed0984/bin/ukojak-verify-afCqCEvfdi/data/f11bfc4b7/bb34b167c47149ee9a5f025bd95b8273/FLAGe99d96df5 [2023-11-24 22:51:30,938 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7053f93c-6b08-4d0f-bae8-857ed1ed0984/bin/ukojak-verify-afCqCEvfdi/data/f11bfc4b7/bb34b167c47149ee9a5f025bd95b8273 [2023-11-24 22:51:30,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:51:30,943 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:51:30,944 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:51:30,945 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:51:30,950 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:51:30,951 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:51:30" (1/1) ... [2023-11-24 22:51:30,953 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a7a3a70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:30, skipping insertion in model container [2023-11-24 22:51:30,953 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:51:30" (1/1) ... [2023-11-24 22:51:30,975 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:51:31,152 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:51:31,165 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:51:31,185 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:51:31,202 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:51:31,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:31 WrapperNode [2023-11-24 22:51:31,203 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:51:31,205 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:51:31,205 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:51:31,205 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:51:31,215 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:31" (1/1) ... [2023-11-24 22:51:31,224 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:31" (1/1) ... [2023-11-24 22:51:31,244 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 25 [2023-11-24 22:51:31,245 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:51:31,245 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:51:31,246 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:51:31,246 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:51:31,254 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:31" (1/1) ... [2023-11-24 22:51:31,255 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:31" (1/1) ... [2023-11-24 22:51:31,256 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:31" (1/1) ... [2023-11-24 22:51:31,257 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:31" (1/1) ... [2023-11-24 22:51:31,260 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:31" (1/1) ... [2023-11-24 22:51:31,263 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:31" (1/1) ... [2023-11-24 22:51:31,264 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:31" (1/1) ... [2023-11-24 22:51:31,265 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:31" (1/1) ... [2023-11-24 22:51:31,267 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:51:31,268 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:51:31,268 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:51:31,269 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:51:31,270 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:31" (1/1) ... [2023-11-24 22:51:31,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:51:31,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7053f93c-6b08-4d0f-bae8-857ed1ed0984/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:51:31,309 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7053f93c-6b08-4d0f-bae8-857ed1ed0984/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:51:31,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7053f93c-6b08-4d0f-bae8-857ed1ed0984/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:51:31,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:51:31,354 INFO L130 BoogieDeclarations]: Found specification of procedure isEven [2023-11-24 22:51:31,354 INFO L138 BoogieDeclarations]: Found implementation of procedure isEven [2023-11-24 22:51:31,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:51:31,355 INFO L130 BoogieDeclarations]: Found specification of procedure isOdd [2023-11-24 22:51:31,357 INFO L138 BoogieDeclarations]: Found implementation of procedure isOdd [2023-11-24 22:51:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:51:31,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:51:31,447 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:51:31,450 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:51:31,648 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:51:31,696 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:51:31,697 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 22:51:31,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:51:31 BoogieIcfgContainer [2023-11-24 22:51:31,699 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:51:31,700 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:51:31,700 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:51:31,717 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:51:31,717 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:51:31" (1/1) ... [2023-11-24 22:51:31,727 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:51:31,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:31,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 26 states and 30 transitions. [2023-11-24 22:51:31,808 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2023-11-24 22:51:31,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 22:51:31,814 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:31,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:31,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:51:31,984 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:51:32,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:51:32,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:51:32,094 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:51:32,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:51:32,122 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-24 22:51:32,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:51:32 ImpRootNode [2023-11-24 22:51:32,156 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:51:32,159 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:51:32,160 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:51:32,161 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:51:32,162 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:51:31" (3/4) ... [2023-11-24 22:51:32,164 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-24 22:51:32,218 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7053f93c-6b08-4d0f-bae8-857ed1ed0984/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 22:51:32,219 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:51:32,222 INFO L158 Benchmark]: Toolchain (without parser) took 1277.98ms. Allocated memory is still 153.1MB. Free memory was 119.1MB in the beginning and 79.7MB in the end (delta: 39.4MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-24 22:51:32,225 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 115.3MB. Free memory is still 88.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:51:32,227 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.50ms. Allocated memory is still 153.1MB. Free memory was 118.7MB in the beginning and 108.6MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 22:51:32,229 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.82ms. Allocated memory is still 153.1MB. Free memory was 108.2MB in the beginning and 106.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:51:32,230 INFO L158 Benchmark]: Boogie Preprocessor took 21.91ms. Allocated memory is still 153.1MB. Free memory was 106.9MB in the beginning and 105.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:51:32,231 INFO L158 Benchmark]: RCFGBuilder took 431.15ms. Allocated memory is still 153.1MB. Free memory was 105.7MB in the beginning and 93.9MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 22:51:32,231 INFO L158 Benchmark]: CodeCheck took 455.76ms. Allocated memory is still 153.1MB. Free memory was 93.9MB in the beginning and 81.6MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 22:51:32,235 INFO L158 Benchmark]: Witness Printer took 61.09ms. Allocated memory is still 153.1MB. Free memory was 81.6MB in the beginning and 79.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:51:32,238 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 26 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , 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, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 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: 34]: integer overflow possible integer overflow possible We found a FailurePath: [L40] int n = __VERIFIER_nondet_int(); [L41] CALL isEven(n) VAL [\old(n)=-2147483648] [L29] COND FALSE !(n == 0) VAL [\old(n)=-2147483648, n=-2147483648] [L31] COND FALSE !(n == 1) VAL [\old(n)=-2147483648, n=-2147483648] [L34] n - 1 VAL [\old(n)=-2147483648, n=-2147483648] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 115.3MB. Free memory is still 88.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 259.50ms. Allocated memory is still 153.1MB. Free memory was 118.7MB in the beginning and 108.6MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.82ms. Allocated memory is still 153.1MB. Free memory was 108.2MB in the beginning and 106.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.91ms. Allocated memory is still 153.1MB. Free memory was 106.9MB in the beginning and 105.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 431.15ms. Allocated memory is still 153.1MB. Free memory was 105.7MB in the beginning and 93.9MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 455.76ms. Allocated memory is still 153.1MB. Free memory was 93.9MB in the beginning and 81.6MB in the end (delta: 12.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 61.09ms. Allocated memory is still 153.1MB. Free memory was 81.6MB in the beginning and 79.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2023-11-24 22:51:32,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7053f93c-6b08-4d0f-bae8-857ed1ed0984/bin/ukojak-verify-afCqCEvfdi/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)