./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/addsub_float_exact.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_exact.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a554664720339a35a3ec026865ea1b6c4e0d3f983b8a3fb49a87ef117f533cd5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:00:30,759 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:00:30,880 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 04:00:30,889 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:00:30,890 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 04:00:30,929 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:00:30,930 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:00:30,931 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:00:30,932 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:00:30,937 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:00:30,938 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:00:30,938 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:00:30,939 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:00:30,941 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:00:30,941 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:00:30,942 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:00:30,942 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:00:30,943 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:00:30,943 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:00:30,944 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:00:30,944 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:00:30,945 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:00:30,945 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:00:30,946 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:00:30,946 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:00:30,947 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:00:30,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:00:30,948 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:00:30,949 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:00:30,949 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:00:30,950 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 04:00:30,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:00:30,951 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:00:30,951 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_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a554664720339a35a3ec026865ea1b6c4e0d3f983b8a3fb49a87ef117f533cd5 [2023-11-19 04:00:31,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:00:31,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:00:31,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:00:31,304 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:00:31,304 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:00:31,306 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/float-benchs/addsub_float_exact.c [2023-11-19 04:00:34,862 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:00:35,127 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:00:35,128 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/sv-benchmarks/c/float-benchs/addsub_float_exact.c [2023-11-19 04:00:35,139 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/data/15e036379/95c43752833045279cb172496861bb6a/FLAG4397f1b5c [2023-11-19 04:00:35,159 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/data/15e036379/95c43752833045279cb172496861bb6a [2023-11-19 04:00:35,163 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:00:35,165 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:00:35,167 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:00:35,167 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:00:35,174 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:00:35,176 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:00:35" (1/1) ... [2023-11-19 04:00:35,177 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e8abf45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:35, skipping insertion in model container [2023-11-19 04:00:35,178 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:00:35" (1/1) ... [2023-11-19 04:00:35,210 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:00:35,405 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/sv-benchmarks/c/float-benchs/addsub_float_exact.c[392,405] [2023-11-19 04:00:35,418 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:00:35,432 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:00:35,447 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/sv-benchmarks/c/float-benchs/addsub_float_exact.c[392,405] [2023-11-19 04:00:35,450 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:00:35,468 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:00:35,469 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:35 WrapperNode [2023-11-19 04:00:35,469 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:00:35,471 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:00:35,471 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:00:35,472 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:00:35,481 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:35" (1/1) ... [2023-11-19 04:00:35,491 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:35" (1/1) ... [2023-11-19 04:00:35,512 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 26 [2023-11-19 04:00:35,513 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:00:35,514 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:00:35,514 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:00:35,515 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:00:35,526 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:35" (1/1) ... [2023-11-19 04:00:35,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:35" (1/1) ... [2023-11-19 04:00:35,528 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:35" (1/1) ... [2023-11-19 04:00:35,528 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:35" (1/1) ... [2023-11-19 04:00:35,533 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:35" (1/1) ... [2023-11-19 04:00:35,535 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:35" (1/1) ... [2023-11-19 04:00:35,536 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:35" (1/1) ... [2023-11-19 04:00:35,537 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:35" (1/1) ... [2023-11-19 04:00:35,539 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:00:35,540 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:00:35,541 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:00:35,541 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:00:35,542 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:35" (1/1) ... [2023-11-19 04:00:35,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:00:35,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:00:35,584 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:00:35,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:00:35,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:00:35,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:00:35,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:00:35,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:00:35,729 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:00:35,732 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:00:35,845 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:00:35,899 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:00:35,900 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:00:35,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:00:35 BoogieIcfgContainer [2023-11-19 04:00:35,905 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:00:35,906 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:00:35,907 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:00:35,918 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:00:35,918 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:00:35" (1/1) ... [2023-11-19 04:00:35,928 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:00:35,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:35,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2023-11-19 04:00:35,999 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2023-11-19 04:00:36,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 04:00:36,002 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:36,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:00:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:00:36,165 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:00:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:00:36,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:00:36,276 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:00:36,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:00:36,293 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-19 04:00:36,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 04:00:36 ImpRootNode [2023-11-19 04:00:36,319 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 04:00:36,320 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:00:36,320 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:00:36,321 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:00:36,321 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:00:35" (3/4) ... [2023-11-19 04:00:36,324 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:00:36,325 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:00:36,326 INFO L158 Benchmark]: Toolchain (without parser) took 1160.78ms. Allocated memory is still 134.2MB. Free memory was 90.9MB in the beginning and 94.9MB in the end (delta: -4.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:00:36,327 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 100.7MB. Free memory was 52.3MB in the beginning and 52.2MB in the end (delta: 126.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:00:36,328 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.10ms. Allocated memory is still 134.2MB. Free memory was 90.6MB in the beginning and 80.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:00:36,329 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.37ms. Allocated memory is still 134.2MB. Free memory was 80.5MB in the beginning and 79.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:00:36,330 INFO L158 Benchmark]: Boogie Preprocessor took 25.22ms. Allocated memory is still 134.2MB. Free memory was 79.3MB in the beginning and 78.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:00:36,339 INFO L158 Benchmark]: RCFGBuilder took 365.24ms. Allocated memory is still 134.2MB. Free memory was 78.3MB in the beginning and 106.3MB in the end (delta: -28.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-19 04:00:36,341 INFO L158 Benchmark]: CodeCheck took 413.26ms. Allocated memory is still 134.2MB. Free memory was 106.3MB in the beginning and 94.9MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:00:36,343 INFO L158 Benchmark]: Witness Printer took 4.88ms. Allocated memory is still 134.2MB. Free memory is still 94.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:00:36,349 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, 6 locations, 1 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, 3 NumberOfCodeBlocks, 3 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 - UnprovableResult [Line: 6]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 16, overapproximation of someBinaryArithmeticFLOAToperation at line 13. Possible FailurePath: [L10] float x, y, z, r; [L12] x = 1e7f [L13] y = x + 1.f [L14] z = x - 1.f [L15] r = y - z [L16] CALL __VERIFIER_assert(r == 2.f) [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] reach_error() VAL [\old(cond)=0, cond=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 100.7MB. Free memory was 52.3MB in the beginning and 52.2MB in the end (delta: 126.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.10ms. Allocated memory is still 134.2MB. Free memory was 90.6MB in the beginning and 80.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.37ms. Allocated memory is still 134.2MB. Free memory was 80.5MB in the beginning and 79.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.22ms. Allocated memory is still 134.2MB. Free memory was 79.3MB in the beginning and 78.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 365.24ms. Allocated memory is still 134.2MB. Free memory was 78.3MB in the beginning and 106.3MB in the end (delta: -28.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 413.26ms. Allocated memory is still 134.2MB. Free memory was 106.3MB in the beginning and 94.9MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 4.88ms. Allocated memory is still 134.2MB. Free memory is still 94.9MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 04:00:36,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_exact.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a554664720339a35a3ec026865ea1b6c4e0d3f983b8a3fb49a87ef117f533cd5 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:00:39,098 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:00:39,233 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-19 04:00:39,287 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:00:39,289 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:00:39,289 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:00:39,290 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:00:39,291 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:00:39,292 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:00:39,293 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:00:39,294 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:00:39,294 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:00:39,295 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:00:39,296 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:00:39,296 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:00:39,297 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:00:39,297 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:00:39,298 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:00:39,299 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:00:39,299 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:00:39,300 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:00:39,301 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:00:39,301 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:00:39,302 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:00:39,302 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:00:39,303 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:00:39,304 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 04:00:39,304 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:00:39,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:00:39,305 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:00:39,306 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:00:39,306 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:00:39,307 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:00:39,307 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:00:39,307 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:00:39,308 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 04:00:39,308 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:00:39,308 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a554664720339a35a3ec026865ea1b6c4e0d3f983b8a3fb49a87ef117f533cd5 [2023-11-19 04:00:39,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:00:39,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:00:39,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:00:39,861 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:00:39,862 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:00:39,864 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/float-benchs/addsub_float_exact.c [2023-11-19 04:00:43,503 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:00:43,773 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:00:43,774 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/sv-benchmarks/c/float-benchs/addsub_float_exact.c [2023-11-19 04:00:43,785 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/data/1814b832f/d4f9dedf62a2480583e48d93cac02573/FLAG7b53d8610 [2023-11-19 04:00:43,819 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/data/1814b832f/d4f9dedf62a2480583e48d93cac02573 [2023-11-19 04:00:43,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:00:43,831 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:00:43,836 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:00:43,838 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:00:43,845 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:00:43,846 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:00:43" (1/1) ... [2023-11-19 04:00:43,851 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50469393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:43, skipping insertion in model container [2023-11-19 04:00:43,852 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:00:43" (1/1) ... [2023-11-19 04:00:43,880 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:00:44,118 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/sv-benchmarks/c/float-benchs/addsub_float_exact.c[392,405] [2023-11-19 04:00:44,132 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:00:44,155 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:00:44,173 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/sv-benchmarks/c/float-benchs/addsub_float_exact.c[392,405] [2023-11-19 04:00:44,176 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:00:44,195 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:00:44,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:44 WrapperNode [2023-11-19 04:00:44,196 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:00:44,198 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:00:44,198 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:00:44,198 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:00:44,208 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:44" (1/1) ... [2023-11-19 04:00:44,217 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:44" (1/1) ... [2023-11-19 04:00:44,238 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27 [2023-11-19 04:00:44,238 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:00:44,239 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:00:44,239 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:00:44,239 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:00:44,249 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:44" (1/1) ... [2023-11-19 04:00:44,249 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:44" (1/1) ... [2023-11-19 04:00:44,252 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:44" (1/1) ... [2023-11-19 04:00:44,253 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:44" (1/1) ... [2023-11-19 04:00:44,262 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:44" (1/1) ... [2023-11-19 04:00:44,264 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:44" (1/1) ... [2023-11-19 04:00:44,266 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:44" (1/1) ... [2023-11-19 04:00:44,268 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:44" (1/1) ... [2023-11-19 04:00:44,271 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:00:44,272 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:00:44,272 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:00:44,272 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:00:44,273 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:00:44" (1/1) ... [2023-11-19 04:00:44,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:00:44,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:00:44,312 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:00:44,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:00:44,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:00:44,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:00:44,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:00:44,379 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:00:44,482 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:00:44,486 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:00:44,941 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:00:44,982 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:00:44,982 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:00:44,987 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:00:44 BoogieIcfgContainer [2023-11-19 04:00:44,991 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:00:44,992 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:00:44,993 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:00:45,006 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:00:45,006 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:00:44" (1/1) ... [2023-11-19 04:00:45,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:00:45,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:45,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2023-11-19 04:00:45,124 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2023-11-19 04:00:45,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 04:00:45,127 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:00:45,128 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:00:45,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:00:45,135 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:00:45,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 04:00:45,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:45,474 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:00:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:00:45,702 INFO L262 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 04:00:45,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:00:45,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 04:00:45,888 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 04:00:45,891 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:00:46,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:00:46,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 4 states and 3 transitions. [2023-11-19 04:00:46,565 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions. [2023-11-19 04:00:46,565 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 04:00:46,565 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 2 iterations. [2023-11-19 04:00:46,577 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-19 04:00:46,588 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 04:00:46,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 04:00:46 ImpRootNode [2023-11-19 04:00:46,593 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 04:00:46,594 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:00:46,594 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:00:46,595 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:00:46,595 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:00:44" (3/4) ... [2023-11-19 04:00:46,601 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 04:00:46,622 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-19 04:00:46,623 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-19 04:00:46,623 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 04:00:46,624 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 04:00:46,756 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 04:00:46,757 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 04:00:46,757 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:00:46,758 INFO L158 Benchmark]: Toolchain (without parser) took 2926.53ms. Allocated memory is still 86.0MB. Free memory was 64.5MB in the beginning and 48.2MB in the end (delta: 16.2MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2023-11-19 04:00:46,762 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 86.0MB. Free memory was 62.4MB in the beginning and 62.3MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:00:46,767 INFO L158 Benchmark]: CACSL2BoogieTranslator took 360.14ms. Allocated memory is still 86.0MB. Free memory was 64.2MB in the beginning and 53.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:00:46,768 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.73ms. Allocated memory is still 86.0MB. Free memory was 53.7MB in the beginning and 52.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:00:46,768 INFO L158 Benchmark]: Boogie Preprocessor took 32.12ms. Allocated memory is still 86.0MB. Free memory was 52.2MB in the beginning and 51.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:00:46,769 INFO L158 Benchmark]: RCFGBuilder took 719.06ms. Allocated memory is still 86.0MB. Free memory was 51.0MB in the beginning and 41.1MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:00:46,769 INFO L158 Benchmark]: CodeCheck took 1601.00ms. Allocated memory is still 86.0MB. Free memory was 41.1MB in the beginning and 52.4MB in the end (delta: -11.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:00:46,770 INFO L158 Benchmark]: Witness Printer took 162.82ms. Allocated memory is still 86.0MB. Free memory was 52.4MB in the beginning and 48.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 04:00:46,780 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, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 1 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 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, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 SizeOfPredicates, 6 NumberOfNonLiveVariables, 21 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - PositiveResult [Line: 6]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 86.0MB. Free memory was 62.4MB in the beginning and 62.3MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 360.14ms. Allocated memory is still 86.0MB. Free memory was 64.2MB in the beginning and 53.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.73ms. Allocated memory is still 86.0MB. Free memory was 53.7MB in the beginning and 52.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.12ms. Allocated memory is still 86.0MB. Free memory was 52.2MB in the beginning and 51.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 719.06ms. Allocated memory is still 86.0MB. Free memory was 51.0MB in the beginning and 41.1MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1601.00ms. Allocated memory is still 86.0MB. Free memory was 41.1MB in the beginning and 52.4MB in the end (delta: -11.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 162.82ms. Allocated memory is still 86.0MB. Free memory was 52.4MB in the beginning and 48.2MB 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! [2023-11-19 04:00:46,827 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e15211b-7c08-4432-a1e4-cab41b00274b/bin/ukojak-verify-G8NBE6pJGL/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