./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/PastaB2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b614e7d-d8d9-467a-bff1-2970fa5ff8c3/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b614e7d-d8d9-467a-bff1-2970fa5ff8c3/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_5b614e7d-d8d9-467a-bff1-2970fa5ff8c3/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b614e7d-d8d9-467a-bff1-2970fa5ff8c3/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/PastaB2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b614e7d-d8d9-467a-bff1-2970fa5ff8c3/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b614e7d-d8d9-467a-bff1-2970fa5ff8c3/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 64bit --witnessprinter.graph.data.programhash 70d55a4dcb8d0c2db3cbbfd79b532e2c6b14009dde29008a33a122ff3c343af6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:15:25,114 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:15:25,235 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b614e7d-d8d9-467a-bff1-2970fa5ff8c3/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-24 22:15:25,245 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:15:25,246 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:15:25,284 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:15:25,285 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:15:25,286 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:15:25,287 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:15:25,293 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:15:25,293 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:15:25,294 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:15:25,294 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:15:25,296 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:15:25,297 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:15:25,297 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:15:25,298 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:15:25,298 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 22:15:25,299 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:15:25,299 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:15:25,300 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:15:25,301 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:15:25,302 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:15:25,304 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:15:25,304 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:15:25,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:15:25,305 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:15:25,306 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:15:25,306 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:15:25,307 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:15:25,308 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:15:25,309 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:15:25,309 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_5b614e7d-d8d9-467a-bff1-2970fa5ff8c3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b614e7d-d8d9-467a-bff1-2970fa5ff8c3/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70d55a4dcb8d0c2db3cbbfd79b532e2c6b14009dde29008a33a122ff3c343af6 [2023-11-24 22:15:25,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:15:25,721 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:15:25,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:15:25,726 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:15:25,726 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:15:25,728 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b614e7d-d8d9-467a-bff1-2970fa5ff8c3/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/termination-restricted-15/PastaB2.c [2023-11-24 22:15:28,798 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:15:28,992 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:15:28,993 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b614e7d-d8d9-467a-bff1-2970fa5ff8c3/sv-benchmarks/c/termination-restricted-15/PastaB2.c [2023-11-24 22:15:29,003 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b614e7d-d8d9-467a-bff1-2970fa5ff8c3/bin/ukojak-verify-afCqCEvfdi/data/64905850b/83513c2bbd2e476e85fb28ffa4d7eae2/FLAG52a871945 [2023-11-24 22:15:29,027 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b614e7d-d8d9-467a-bff1-2970fa5ff8c3/bin/ukojak-verify-afCqCEvfdi/data/64905850b/83513c2bbd2e476e85fb28ffa4d7eae2 [2023-11-24 22:15:29,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:15:29,035 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:15:29,039 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:15:29,039 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:15:29,045 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:15:29,045 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:15:29" (1/1) ... [2023-11-24 22:15:29,047 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45d0a767 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:29, skipping insertion in model container [2023-11-24 22:15:29,048 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:15:29" (1/1) ... [2023-11-24 22:15:29,070 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:15:29,237 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:15:29,244 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:15:29,258 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:15:29,274 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:15:29,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:29 WrapperNode [2023-11-24 22:15:29,275 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:15:29,276 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:15:29,276 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:15:29,277 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:15:29,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:29" (1/1) ... [2023-11-24 22:15:29,290 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:29" (1/1) ... [2023-11-24 22:15:29,309 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2023-11-24 22:15:29,310 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:15:29,311 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:15:29,311 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:15:29,311 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:15:29,323 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:29" (1/1) ... [2023-11-24 22:15:29,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:29" (1/1) ... [2023-11-24 22:15:29,325 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:29" (1/1) ... [2023-11-24 22:15:29,326 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:29" (1/1) ... [2023-11-24 22:15:29,328 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:29" (1/1) ... [2023-11-24 22:15:29,334 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:29" (1/1) ... [2023-11-24 22:15:29,339 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:29" (1/1) ... [2023-11-24 22:15:29,340 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:29" (1/1) ... [2023-11-24 22:15:29,341 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:15:29,342 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:15:29,342 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:15:29,342 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:15:29,343 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:29" (1/1) ... [2023-11-24 22:15:29,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:15:29,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b614e7d-d8d9-467a-bff1-2970fa5ff8c3/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:15:29,382 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b614e7d-d8d9-467a-bff1-2970fa5ff8c3/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:15:29,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b614e7d-d8d9-467a-bff1-2970fa5ff8c3/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:15:29,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:15:29,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:15:29,509 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:15:29,512 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:15:29,648 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:15:29,703 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:15:29,703 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 22:15:29,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:15:29 BoogieIcfgContainer [2023-11-24 22:15:29,705 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:15:29,706 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:15:29,707 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:15:29,723 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:15:29,724 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:15:29" (1/1) ... [2023-11-24 22:15:29,734 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:15:29,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:15:29,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-11-24 22:15:29,808 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-11-24 22:15:29,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 22:15:29,810 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:15:29,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:15:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:15:30,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:15:30,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:15:30,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2023-11-24 22:15:30,138 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2023-11-24 22:15:30,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 22:15:30,139 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:15:30,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:15:30,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:15:30,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:15:30,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:15:30,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 16 states and 21 transitions. [2023-11-24 22:15:30,338 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 21 transitions. [2023-11-24 22:15:30,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 22:15:30,338 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:15:30,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:15:30,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:15:30,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:15:30,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:15:30,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2023-11-24 22:15:30,581 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2023-11-24 22:15:30,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 22:15:30,589 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:15:30,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:15:30,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:15:30,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:15:30,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:15:30,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2023-11-24 22:15:30,986 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2023-11-24 22:15:30,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-24 22:15:30,988 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:15:30,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:15:31,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:15:31,096 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:15:31,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:15:31,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 22 states and 29 transitions. [2023-11-24 22:15:31,168 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2023-11-24 22:15:31,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 22:15:31,169 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:15:31,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:15:31,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:15:31,230 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:15:31,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:15:31,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2023-11-24 22:15:31,437 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2023-11-24 22:15:31,438 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 22:15:31,438 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2023-11-24 22:15:31,448 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-24 22:15:31,483 INFO L560 CodeCheckObserver]: Invariant with dag size 9 [2023-11-24 22:15:31,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:15:31 ImpRootNode [2023-11-24 22:15:31,491 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:15:31,492 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:15:31,492 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:15:31,493 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:15:31,493 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:15:29" (3/4) ... [2023-11-24 22:15:31,495 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 22:15:31,504 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-24 22:15:31,505 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-24 22:15:31,505 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-24 22:15:31,615 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b614e7d-d8d9-467a-bff1-2970fa5ff8c3/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 22:15:31,616 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b614e7d-d8d9-467a-bff1-2970fa5ff8c3/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 22:15:31,616 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:15:31,618 INFO L158 Benchmark]: Toolchain (without parser) took 2581.68ms. Allocated memory was 151.0MB in the beginning and 218.1MB in the end (delta: 67.1MB). Free memory was 105.3MB in the beginning and 145.8MB in the end (delta: -40.4MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2023-11-24 22:15:31,618 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 151.0MB. Free memory is still 119.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:15:31,618 INFO L158 Benchmark]: CACSL2BoogieTranslator took 236.22ms. Allocated memory is still 151.0MB. Free memory was 105.3MB in the beginning and 95.8MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 22:15:31,619 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.06ms. Allocated memory is still 151.0MB. Free memory was 95.8MB in the beginning and 94.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:15:31,620 INFO L158 Benchmark]: Boogie Preprocessor took 30.40ms. Allocated memory is still 151.0MB. Free memory was 94.7MB in the beginning and 93.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:15:31,621 INFO L158 Benchmark]: RCFGBuilder took 363.54ms. Allocated memory is still 151.0MB. Free memory was 93.4MB in the beginning and 84.1MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-24 22:15:31,621 INFO L158 Benchmark]: CodeCheck took 1785.29ms. Allocated memory was 151.0MB in the beginning and 218.1MB in the end (delta: 67.1MB). Free memory was 84.1MB in the beginning and 150.0MB in the end (delta: -65.9MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2023-11-24 22:15:31,622 INFO L158 Benchmark]: Witness Printer took 123.83ms. Allocated memory is still 218.1MB. Free memory was 150.0MB in the beginning and 145.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 22:15:31,629 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 1 procedures, 11 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 81 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 71 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 305 IncrementalHoareTripleChecker+Invalid, 363 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 0 mSDtfsCounter, 305 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 283 GetRequests, 229 SyntacticMatches, 14 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 617 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 29 ConstructedInterpolants, 0 QuantifiedInterpolants, 113 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 4/5 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: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 12]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 13]: 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: 11]: Loop Invariant Derived loop invariant: ((x <= 2147483647) && (0 <= (y + 2147483648))) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 151.0MB. Free memory is still 119.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 236.22ms. Allocated memory is still 151.0MB. Free memory was 105.3MB in the beginning and 95.8MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.06ms. Allocated memory is still 151.0MB. Free memory was 95.8MB in the beginning and 94.7MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.40ms. Allocated memory is still 151.0MB. Free memory was 94.7MB in the beginning and 93.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 363.54ms. Allocated memory is still 151.0MB. Free memory was 93.4MB in the beginning and 84.1MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1785.29ms. Allocated memory was 151.0MB in the beginning and 218.1MB in the end (delta: 67.1MB). Free memory was 84.1MB in the beginning and 150.0MB in the end (delta: -65.9MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. * Witness Printer took 123.83ms. Allocated memory is still 218.1MB. Free memory was 150.0MB in the beginning and 145.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-24 22:15:31,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5b614e7d-d8d9-467a-bff1-2970fa5ff8c3/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 Result: TRUE