./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/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_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi --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 0fe8fc4355a4e8558a06e9516fd8b9c3e5a636112d9ce6a006f4aad85245907d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:00:09,096 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:00:09,190 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 23:00:09,195 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:00:09,195 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:00:09,221 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:00:09,222 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:00:09,223 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:00:09,224 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:00:09,225 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:00:09,225 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:00:09,226 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:00:09,227 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:00:09,227 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:00:09,228 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:00:09,228 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:00:09,229 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:00:09,230 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:00:09,230 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:00:09,231 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:00:09,231 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:00:09,232 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:00:09,233 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:00:09,236 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:00:09,239 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:00:09,240 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:00:09,240 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:00:09,241 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:00:09,241 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:00:09,242 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:00:09,242 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:00:09,243 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:00:09,243 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:00:09,243 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_97ee8c48-8603-402a-90d3-a331c391bd6c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fe8fc4355a4e8558a06e9516fd8b9c3e5a636112d9ce6a006f4aad85245907d [2023-11-24 23:00:09,551 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:00:09,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:00:09,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:00:09,578 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:00:09,579 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:00:09,580 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/floats-cbmc-regression/float5.c [2023-11-24 23:00:12,705 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:00:12,907 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:00:12,908 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/sv-benchmarks/c/floats-cbmc-regression/float5.c [2023-11-24 23:00:12,918 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi/data/9bc433ae3/7c440a49f7ac45089c28710c09bfa969/FLAGa17b83540 [2023-11-24 23:00:12,938 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi/data/9bc433ae3/7c440a49f7ac45089c28710c09bfa969 [2023-11-24 23:00:12,946 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:00:12,948 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:00:12,951 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:00:12,951 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:00:12,958 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:00:12,959 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:00:12" (1/1) ... [2023-11-24 23:00:12,964 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@747801b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:12, skipping insertion in model container [2023-11-24 23:00:12,964 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:00:12" (1/1) ... [2023-11-24 23:00:12,987 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:00:13,140 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_97ee8c48-8603-402a-90d3-a331c391bd6c/sv-benchmarks/c/floats-cbmc-regression/float5.c[501,514] [2023-11-24 23:00:13,145 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:00:13,157 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:00:13,172 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_97ee8c48-8603-402a-90d3-a331c391bd6c/sv-benchmarks/c/floats-cbmc-regression/float5.c[501,514] [2023-11-24 23:00:13,173 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:00:13,188 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:00:13,189 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:13 WrapperNode [2023-11-24 23:00:13,189 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:00:13,191 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:00:13,192 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:00:13,192 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:00:13,201 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:13" (1/1) ... [2023-11-24 23:00:13,210 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:13" (1/1) ... [2023-11-24 23:00:13,229 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2023-11-24 23:00:13,229 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:00:13,230 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:00:13,230 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:00:13,230 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:00:13,239 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:13" (1/1) ... [2023-11-24 23:00:13,239 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:13" (1/1) ... [2023-11-24 23:00:13,240 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:13" (1/1) ... [2023-11-24 23:00:13,240 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:13" (1/1) ... [2023-11-24 23:00:13,244 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:13" (1/1) ... [2023-11-24 23:00:13,248 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:13" (1/1) ... [2023-11-24 23:00:13,254 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:13" (1/1) ... [2023-11-24 23:00:13,255 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:13" (1/1) ... [2023-11-24 23:00:13,257 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:00:13,258 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:00:13,259 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:00:13,259 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:00:13,260 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:13" (1/1) ... [2023-11-24 23:00:13,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:00:13,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:00:13,300 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:00:13,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:00:13,347 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:00:13,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:00:13,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:00:13,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:00:13,422 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:00:13,425 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:00:13,563 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:00:13,624 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:00:13,624 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:00:13,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:00:13 BoogieIcfgContainer [2023-11-24 23:00:13,626 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:00:13,627 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:00:13,627 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:00:13,639 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:00:13,639 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:00:13" (1/1) ... [2023-11-24 23:00:13,649 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:00:13,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:13,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2023-11-24 23:00:13,708 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2023-11-24 23:00:13,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 23:00:13,711 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:13,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:00:13,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:00:13,836 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:00:13,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:00:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:00:13,929 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:00:13,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:00:13,953 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-24 23:00:13,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 11:00:13 ImpRootNode [2023-11-24 23:00:13,996 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 23:00:13,997 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:00:13,997 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:00:13,997 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:00:13,998 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:00:13" (3/4) ... [2023-11-24 23:00:14,000 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:00:14,002 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:00:14,003 INFO L158 Benchmark]: Toolchain (without parser) took 1054.27ms. Allocated memory was 121.6MB in the beginning and 167.8MB in the end (delta: 46.1MB). Free memory was 77.0MB in the beginning and 126.8MB in the end (delta: -49.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:00:14,003 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 121.6MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:00:14,004 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.31ms. Allocated memory is still 121.6MB. Free memory was 77.0MB in the beginning and 66.8MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 23:00:14,005 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.18ms. Allocated memory is still 121.6MB. Free memory was 66.8MB in the beginning and 65.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:00:14,006 INFO L158 Benchmark]: Boogie Preprocessor took 27.37ms. Allocated memory is still 121.6MB. Free memory was 65.2MB in the beginning and 64.4MB in the end (delta: 710.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:00:14,009 INFO L158 Benchmark]: RCFGBuilder took 367.83ms. Allocated memory was 121.6MB in the beginning and 167.8MB in the end (delta: 46.1MB). Free memory was 64.1MB in the beginning and 138.0MB in the end (delta: -73.8MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2023-11-24 23:00:14,011 INFO L158 Benchmark]: CodeCheck took 369.02ms. Allocated memory is still 167.8MB. Free memory was 138.0MB in the beginning and 126.8MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 23:00:14,011 INFO L158 Benchmark]: Witness Printer took 4.94ms. Allocated memory is still 167.8MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:00:14,020 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: 0.3s, 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: 14]: 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 14, overapproximation of someBinaryDOUBLEComparisonOperation at line 10, overapproximation of someBinaryArithmeticFLOAToperation at line 12. Possible FailurePath: [L8] float a=__VERIFIER_nondet_float(), b=__VERIFIER_nondet_float(); [L8] float a=__VERIFIER_nondet_float(), b=__VERIFIER_nondet_float(); [L10] COND FALSE !(!(a==1 || a==0.5 || a==2 || a==3 || a==0.1)) [L11] b=a [L12] a/=2 [L13] a*=2 [L14] COND TRUE !(a==b) [L14] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 121.6MB. Free memory is still 70.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 238.31ms. Allocated memory is still 121.6MB. Free memory was 77.0MB in the beginning and 66.8MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.18ms. Allocated memory is still 121.6MB. Free memory was 66.8MB in the beginning and 65.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.37ms. Allocated memory is still 121.6MB. Free memory was 65.2MB in the beginning and 64.4MB in the end (delta: 710.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 367.83ms. Allocated memory was 121.6MB in the beginning and 167.8MB in the end (delta: 46.1MB). Free memory was 64.1MB in the beginning and 138.0MB in the end (delta: -73.8MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * CodeCheck took 369.02ms. Allocated memory is still 167.8MB. Free memory was 138.0MB in the beginning and 126.8MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 4.94ms. Allocated memory is still 167.8MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 23:00:14,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with 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_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/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_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi --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 0fe8fc4355a4e8558a06e9516fd8b9c3e5a636112d9ce6a006f4aad85245907d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:00:16,743 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:00:16,846 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-24 23:00:16,880 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:00:16,881 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:00:16,882 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:00:16,883 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:00:16,884 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:00:16,884 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:00:16,885 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:00:16,886 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:00:16,887 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:00:16,887 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:00:16,888 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:00:16,889 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:00:16,889 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:00:16,890 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:00:16,891 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:00:16,892 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:00:16,892 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:00:16,893 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:00:16,894 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:00:16,895 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:00:16,895 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:00:16,896 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:00:16,897 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:16,898 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 23:00:16,898 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:00:16,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:00:16,900 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:00:16,900 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:00:16,901 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:00:16,902 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:00:16,902 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:16,903 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:00:16,903 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 23:00:16,903 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:00:16,904 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_97ee8c48-8603-402a-90d3-a331c391bd6c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fe8fc4355a4e8558a06e9516fd8b9c3e5a636112d9ce6a006f4aad85245907d [2023-11-24 23:00:17,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:00:17,277 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:00:17,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:00:17,281 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:00:17,282 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:00:17,283 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/floats-cbmc-regression/float5.c [2023-11-24 23:00:20,435 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:00:20,707 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:00:20,708 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/sv-benchmarks/c/floats-cbmc-regression/float5.c [2023-11-24 23:00:20,717 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi/data/7db3846b5/fc12f4d0f30f4e81a73e33c51a43bd1d/FLAG98d3d7fe4 [2023-11-24 23:00:20,738 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi/data/7db3846b5/fc12f4d0f30f4e81a73e33c51a43bd1d [2023-11-24 23:00:20,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:00:20,747 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:00:20,751 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:00:20,752 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:00:20,756 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:00:20,760 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:00:20" (1/1) ... [2023-11-24 23:00:20,761 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc7f18e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:20, skipping insertion in model container [2023-11-24 23:00:20,762 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:00:20" (1/1) ... [2023-11-24 23:00:20,782 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:00:20,988 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_97ee8c48-8603-402a-90d3-a331c391bd6c/sv-benchmarks/c/floats-cbmc-regression/float5.c[501,514] [2023-11-24 23:00:20,994 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:00:21,013 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:00:21,032 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_97ee8c48-8603-402a-90d3-a331c391bd6c/sv-benchmarks/c/floats-cbmc-regression/float5.c[501,514] [2023-11-24 23:00:21,033 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:00:21,054 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:00:21,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:21 WrapperNode [2023-11-24 23:00:21,055 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:00:21,057 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:00:21,057 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:00:21,057 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:00:21,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:21" (1/1) ... [2023-11-24 23:00:21,076 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:21" (1/1) ... [2023-11-24 23:00:21,094 INFO L138 Inliner]: procedures = 13, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2023-11-24 23:00:21,095 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:00:21,099 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:00:21,099 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:00:21,100 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:00:21,109 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:21" (1/1) ... [2023-11-24 23:00:21,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:21" (1/1) ... [2023-11-24 23:00:21,125 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:21" (1/1) ... [2023-11-24 23:00:21,125 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:21" (1/1) ... [2023-11-24 23:00:21,134 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:21" (1/1) ... [2023-11-24 23:00:21,137 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:21" (1/1) ... [2023-11-24 23:00:21,143 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:21" (1/1) ... [2023-11-24 23:00:21,146 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:21" (1/1) ... [2023-11-24 23:00:21,149 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:00:21,153 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:00:21,154 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:00:21,154 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:00:21,155 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:00:21" (1/1) ... [2023-11-24 23:00:21,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:00:21,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:00:21,256 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:00:21,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:00:21,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:00:21,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:00:21,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:00:21,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:00:21,393 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:00:21,396 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:00:22,037 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:00:22,098 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:00:22,101 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:00:22,103 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:00:22 BoogieIcfgContainer [2023-11-24 23:00:22,104 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:00:22,105 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:00:22,106 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:00:22,118 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:00:22,118 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:00:22" (1/1) ... [2023-11-24 23:00:22,129 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:00:22,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:22,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2023-11-24 23:00:22,211 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2023-11-24 23:00:22,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 23:00:22,214 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:00:22,215 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:00:22,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:00:22,219 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:00:22,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 23:00:22,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:22,422 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:00:23,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:00:23,799 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 23:00:23,803 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:00:43,709 WARN L293 SmtUtils]: Spent 8.56s on a formula simplification that was a NOOP. DAG size: 21 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-24 23:00:45,233 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 23:00:45,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-24 23:00:55,032 WARN L293 SmtUtils]: Spent 7.16s on a formula simplification that was a NOOP. DAG size: 22 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-24 23:00:56,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-24 23:00:58,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result VALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-24 23:00:59,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:00:59,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 4 states and 3 transitions. [2023-11-24 23:00:59,681 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions. [2023-11-24 23:00:59,681 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 23:00:59,682 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 2 iterations. [2023-11-24 23:00:59,691 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-24 23:01:05,651 WARN L293 SmtUtils]: Spent 5.95s on a formula simplification that was a NOOP. DAG size: 21 (called from [L 649] de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.computeHoareAnnotation) [2023-11-24 23:01:05,651 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 11:01:05 ImpRootNode [2023-11-24 23:01:05,651 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 23:01:05,652 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:01:05,652 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:01:05,653 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:01:05,653 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:00:22" (3/4) ... [2023-11-24 23:01:05,655 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 23:01:05,669 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-24 23:01:05,669 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-24 23:01:05,670 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-24 23:01:05,670 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 23:01:05,764 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 23:01:05,765 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 23:01:05,765 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:01:05,766 INFO L158 Benchmark]: Toolchain (without parser) took 45018.53ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 51.9MB in the beginning and 75.8MB in the end (delta: -23.9MB). Peak memory consumption was 31.6MB. Max. memory is 16.1GB. [2023-11-24 23:01:05,767 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 75.5MB. Free memory is still 51.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:01:05,772 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.33ms. Allocated memory is still 75.5MB. Free memory was 51.5MB in the beginning and 40.7MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 23:01:05,773 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.28ms. Allocated memory is still 75.5MB. Free memory was 40.7MB in the beginning and 39.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:01:05,773 INFO L158 Benchmark]: Boogie Preprocessor took 52.74ms. Allocated memory is still 75.5MB. Free memory was 39.3MB in the beginning and 37.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:01:05,774 INFO L158 Benchmark]: RCFGBuilder took 951.42ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 37.9MB in the beginning and 67.7MB in the end (delta: -29.8MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2023-11-24 23:01:05,775 INFO L158 Benchmark]: CodeCheck took 43546.59ms. Allocated memory is still 98.6MB. Free memory was 67.7MB in the beginning and 50.5MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-24 23:01:05,778 INFO L158 Benchmark]: Witness Printer took 112.95ms. Allocated memory is still 98.6MB. Free memory was 50.5MB in the beginning and 75.8MB in the end (delta: -25.3MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2023-11-24 23:01:05,787 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: 37.5s, 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, 4.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 4.5s 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, 20.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 21.4s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 38 SizeOfPredicates, 3 NumberOfNonLiveVariables, 17 ConjunctsInSsa, 4 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: 14]: 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 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 75.5MB. Free memory is still 51.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.33ms. Allocated memory is still 75.5MB. Free memory was 51.5MB in the beginning and 40.7MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.28ms. Allocated memory is still 75.5MB. Free memory was 40.7MB in the beginning and 39.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.74ms. Allocated memory is still 75.5MB. Free memory was 39.3MB in the beginning and 37.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 951.42ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 37.9MB in the beginning and 67.7MB in the end (delta: -29.8MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. * CodeCheck took 43546.59ms. Allocated memory is still 98.6MB. Free memory was 67.7MB in the beginning and 50.5MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 112.95ms. Allocated memory is still 98.6MB. Free memory was 50.5MB in the beginning and 75.8MB in the end (delta: -25.3MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-24 23:01:05,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_97ee8c48-8603-402a-90d3-a331c391bd6c/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