./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/sqrt_Householder_interval.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_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/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_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_Householder_interval.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/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_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/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 3bb1d9e312234d5c4f7ead2dcb51cc43e4ff3aebeffef1b0758f6a0d5be2ea9b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:15:37,289 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:15:37,412 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 22:15:37,424 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:15:37,425 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:15:37,464 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:15:37,468 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:15:37,468 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:15:37,469 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:15:37,475 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:15:37,476 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:15:37,476 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:15:37,476 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:15:37,478 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:15:37,479 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:15:37,479 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:15:37,480 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:15:37,480 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:15:37,481 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:15:37,481 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:15:37,482 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:15:37,482 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:15:37,483 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:15:37,484 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:15:37,484 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:15:37,485 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:15:37,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:15:37,486 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:15:37,486 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:15:37,487 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:15:37,488 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:15:37,488 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:15:37,489 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:15:37,489 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_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bb1d9e312234d5c4f7ead2dcb51cc43e4ff3aebeffef1b0758f6a0d5be2ea9b [2023-11-24 22:15:37,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:15:37,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:15:37,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:15:37,827 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:15:37,828 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:15:37,845 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/float-benchs/sqrt_Householder_interval.c [2023-11-24 22:15:41,107 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:15:41,381 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:15:41,382 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/sv-benchmarks/c/float-benchs/sqrt_Householder_interval.c [2023-11-24 22:15:41,390 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/bin/ukojak-verify-afCqCEvfdi/data/4ce5ee6f6/071a147356b24c80b381bb4d794c769e/FLAG51628db45 [2023-11-24 22:15:41,712 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/bin/ukojak-verify-afCqCEvfdi/data/4ce5ee6f6/071a147356b24c80b381bb4d794c769e [2023-11-24 22:15:41,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:15:41,716 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:15:41,718 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:15:41,718 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:15:41,723 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:15:41,724 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:15:41" (1/1) ... [2023-11-24 22:15:41,725 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72fee289 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:41, skipping insertion in model container [2023-11-24 22:15:41,726 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:15:41" (1/1) ... [2023-11-24 22:15:41,757 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:15:41,920 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_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/sv-benchmarks/c/float-benchs/sqrt_Householder_interval.c[831,844] [2023-11-24 22:15:41,942 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:15:41,951 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:15:41,964 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_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/sv-benchmarks/c/float-benchs/sqrt_Householder_interval.c[831,844] [2023-11-24 22:15:41,973 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:15:41,989 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:15:41,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:41 WrapperNode [2023-11-24 22:15:41,989 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:15:41,991 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:15:41,991 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:15:41,991 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:15:41,999 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:41" (1/1) ... [2023-11-24 22:15:42,006 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:41" (1/1) ... [2023-11-24 22:15:42,028 INFO L138 Inliner]: procedures = 15, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 63 [2023-11-24 22:15:42,029 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:15:42,030 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:15:42,030 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:15:42,031 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:15:42,041 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:41" (1/1) ... [2023-11-24 22:15:42,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:41" (1/1) ... [2023-11-24 22:15:42,043 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:41" (1/1) ... [2023-11-24 22:15:42,044 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:41" (1/1) ... [2023-11-24 22:15:42,052 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:41" (1/1) ... [2023-11-24 22:15:42,056 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:41" (1/1) ... [2023-11-24 22:15:42,060 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:41" (1/1) ... [2023-11-24 22:15:42,061 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:41" (1/1) ... [2023-11-24 22:15:42,063 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:15:42,065 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:15:42,065 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:15:42,065 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:15:42,066 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:41" (1/1) ... [2023-11-24 22:15:42,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:15:42,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:15:42,109 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:15:42,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:15:42,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:15:42,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:15:42,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:15:42,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:15:42,213 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:15:42,215 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:15:42,353 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:15:42,434 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:15:42,435 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 22:15:42,437 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:15:42 BoogieIcfgContainer [2023-11-24 22:15:42,437 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:15:42,438 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:15:42,438 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:15:42,450 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:15:42,450 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:15:42" (1/1) ... [2023-11-24 22:15:42,459 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:15:42,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:15:42,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-11-24 22:15:42,510 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-11-24 22:15:42,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 22:15:42,512 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:15:42,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:15:42,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:15:42,632 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:15:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:15:42,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:15:42,742 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:15:42,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:15:42,781 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-24 22:15:42,815 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:15:42 ImpRootNode [2023-11-24 22:15:42,816 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:15:42,819 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:15:42,819 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:15:42,820 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:15:42,820 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:15:42" (3/4) ... [2023-11-24 22:15:42,824 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 22:15:42,826 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:15:42,828 INFO L158 Benchmark]: Toolchain (without parser) took 1110.85ms. Allocated memory is still 153.1MB. Free memory was 118.4MB in the beginning and 77.7MB in the end (delta: 40.7MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2023-11-24 22:15:42,828 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory was 85.8MB in the beginning and 85.7MB in the end (delta: 26.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:15:42,830 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.33ms. Allocated memory is still 153.1MB. Free memory was 117.7MB in the beginning and 106.9MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 22:15:42,832 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.37ms. Allocated memory is still 153.1MB. Free memory was 106.9MB in the beginning and 105.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:15:42,833 INFO L158 Benchmark]: Boogie Preprocessor took 34.11ms. Allocated memory is still 153.1MB. Free memory was 105.6MB in the beginning and 104.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:15:42,834 INFO L158 Benchmark]: RCFGBuilder took 372.63ms. Allocated memory is still 153.1MB. Free memory was 104.1MB in the beginning and 90.9MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 22:15:42,835 INFO L158 Benchmark]: CodeCheck took 377.78ms. Allocated memory is still 153.1MB. Free memory was 90.3MB in the beginning and 77.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 22:15:42,835 INFO L158 Benchmark]: Witness Printer took 7.39ms. Allocated memory is still 153.1MB. Free memory is still 77.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:15:42,845 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, 7 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, 4 NumberOfCodeBlocks, 4 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: 20]: 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 someBinaryArithmeticDOUBLEoperation at line 44, overapproximation of someUnaryDOUBLEoperation at line 32, overapproximation of someBinaryDOUBLEComparisonOperation at line 56. Possible FailurePath: [L22] double _EPS = 1e-6; [L49] double d, r; [L51] d = __VERIFIER_nondet_double() [L52] CALL assume_abort_if_not(d >= 0.1 && d <= 20.0) [L18] COND FALSE !(!cond) [L52] RET assume_abort_if_not(d >= 0.1 && d <= 20.0) [L54] CALL, EXPR SqrtR(d) [L26] double xn, xnp1, residu, lsup, linf; [L27] int i, cond; [L28] COND TRUE Input <= 1.0 [L28] xn = 1.0 [L29] xnp1 = xn [L30] residu = 2.0*_EPS*(xn+xnp1) [L31] lsup = _EPS * (xn+xnp1) [L32] linf = -lsup [L33] cond = ((residu > lsup) || (residu < linf)) [L34] i = 0 VAL [Input=2, \old(Input)=2, _EPS=1/1000000, cond=0, i=0, xn=1, xn=1] [L35] COND FALSE !(\read(cond)) [L44] return 1.0 / xnp1; [L54] RET, EXPR SqrtR(d) [L54] r = SqrtR(d) [L56] CALL __VERIFIER_assert(r >= 0.3 && r <= 5.) [L20] COND TRUE !(cond) VAL [\old(cond)=0, _EPS=1/1000000, cond=0] [L20] reach_error() VAL [\old(cond)=0, _EPS=1/1000000, cond=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 117.4MB. Free memory was 85.8MB in the beginning and 85.7MB in the end (delta: 26.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 272.33ms. Allocated memory is still 153.1MB. Free memory was 117.7MB in the beginning and 106.9MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.37ms. Allocated memory is still 153.1MB. Free memory was 106.9MB in the beginning and 105.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.11ms. Allocated memory is still 153.1MB. Free memory was 105.6MB in the beginning and 104.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 372.63ms. Allocated memory is still 153.1MB. Free memory was 104.1MB in the beginning and 90.9MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 377.78ms. Allocated memory is still 153.1MB. Free memory was 90.3MB in the beginning and 77.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 7.39ms. Allocated memory is still 153.1MB. Free memory is still 77.7MB. 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 22:15:42,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/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 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_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/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_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_Householder_interval.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/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_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/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 3bb1d9e312234d5c4f7ead2dcb51cc43e4ff3aebeffef1b0758f6a0d5be2ea9b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:15:45,891 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:15:46,064 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-24 22:15:46,125 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:15:46,127 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:15:46,128 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:15:46,129 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:15:46,130 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:15:46,132 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:15:46,138 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:15:46,138 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:15:46,139 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:15:46,140 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:15:46,142 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:15:46,142 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:15:46,143 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:15:46,143 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 22:15:46,144 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 22:15:46,144 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 22:15:46,146 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:15:46,146 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:15:46,147 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:15:46,147 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:15:46,148 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:15:46,148 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:15:46,149 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:15:46,149 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 22:15:46,150 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:15:46,150 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:15:46,151 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:15:46,153 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:15:46,153 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:15:46,153 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 22:15:46,154 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:15:46,154 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:15:46,154 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 22:15:46,155 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 22:15:46,155 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_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bb1d9e312234d5c4f7ead2dcb51cc43e4ff3aebeffef1b0758f6a0d5be2ea9b [2023-11-24 22:15:46,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:15:46,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:15:46,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:15:46,665 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:15:46,665 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:15:46,667 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/float-benchs/sqrt_Householder_interval.c [2023-11-24 22:15:49,976 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:15:50,280 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:15:50,281 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/sv-benchmarks/c/float-benchs/sqrt_Householder_interval.c [2023-11-24 22:15:50,287 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/bin/ukojak-verify-afCqCEvfdi/data/ce780fa09/0b466781f32641568e931524ff6dc132/FLAGa4b171697 [2023-11-24 22:15:50,305 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/bin/ukojak-verify-afCqCEvfdi/data/ce780fa09/0b466781f32641568e931524ff6dc132 [2023-11-24 22:15:50,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:15:50,308 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:15:50,310 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:15:50,310 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:15:50,315 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:15:50,316 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:15:50" (1/1) ... [2023-11-24 22:15:50,317 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ff2bbf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:50, skipping insertion in model container [2023-11-24 22:15:50,317 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:15:50" (1/1) ... [2023-11-24 22:15:50,338 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:15:50,496 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_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/sv-benchmarks/c/float-benchs/sqrt_Householder_interval.c[831,844] [2023-11-24 22:15:50,519 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:15:50,536 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:15:50,548 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_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/sv-benchmarks/c/float-benchs/sqrt_Householder_interval.c[831,844] [2023-11-24 22:15:50,557 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:15:50,575 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:15:50,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:50 WrapperNode [2023-11-24 22:15:50,576 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:15:50,577 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:15:50,577 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:15:50,577 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:15:50,586 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:50" (1/1) ... [2023-11-24 22:15:50,597 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:50" (1/1) ... [2023-11-24 22:15:50,621 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 64 [2023-11-24 22:15:50,622 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:15:50,622 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:15:50,623 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:15:50,623 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:15:50,633 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:50" (1/1) ... [2023-11-24 22:15:50,633 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:50" (1/1) ... [2023-11-24 22:15:50,638 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:50" (1/1) ... [2023-11-24 22:15:50,638 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:50" (1/1) ... [2023-11-24 22:15:50,648 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:50" (1/1) ... [2023-11-24 22:15:50,652 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:50" (1/1) ... [2023-11-24 22:15:50,655 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:50" (1/1) ... [2023-11-24 22:15:50,657 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:50" (1/1) ... [2023-11-24 22:15:50,661 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:15:50,662 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:15:50,662 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:15:50,662 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:15:50,663 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:50" (1/1) ... [2023-11-24 22:15:50,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:15:50,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:15:50,718 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:15:50,723 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:15:50,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:15:50,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 22:15:50,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:15:50,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:15:50,891 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:15:50,894 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:16:22,808 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:16:22,893 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:16:22,893 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 22:16:22,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:16:22 BoogieIcfgContainer [2023-11-24 22:16:22,895 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:16:22,896 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:16:22,896 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:16:22,906 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:16:22,907 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:16:22" (1/1) ... [2023-11-24 22:16:22,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:16:22,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:22,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-11-24 22:16:22,970 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-11-24 22:16:22,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 22:16:22,974 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:22,975 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:16:22,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:16:22,980 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:16:23,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 22:16:28,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:28,210 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:16:38,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-11-24 22:16:41,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-24 22:16:41,300 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck has thrown an exception: java.lang.UnsupportedOperationException: Solver said unknown at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-24 22:16:41,304 INFO L158 Benchmark]: Toolchain (without parser) took 50995.27ms. Allocated memory is still 92.3MB. Free memory was 68.7MB in the beginning and 50.7MB in the end (delta: 17.9MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2023-11-24 22:16:41,305 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 65.0MB. Free memory was 41.1MB in the beginning and 41.0MB in the end (delta: 93.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:16:41,306 INFO L158 Benchmark]: CACSL2BoogieTranslator took 266.67ms. Allocated memory is still 92.3MB. Free memory was 68.5MB in the beginning and 57.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 22:16:41,306 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.72ms. Allocated memory is still 92.3MB. Free memory was 56.8MB in the beginning and 55.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:16:41,307 INFO L158 Benchmark]: Boogie Preprocessor took 38.69ms. Allocated memory is still 92.3MB. Free memory was 55.2MB in the beginning and 53.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:16:41,308 INFO L158 Benchmark]: RCFGBuilder took 32233.10ms. Allocated memory is still 92.3MB. Free memory was 53.6MB in the beginning and 58.6MB in the end (delta: -5.0MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2023-11-24 22:16:41,309 INFO L158 Benchmark]: CodeCheck took 18407.05ms. Allocated memory is still 92.3MB. Free memory was 58.6MB in the beginning and 50.7MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-24 22:16:41,313 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - ExceptionOrErrorResult: UnsupportedOperationException: Solver said unknown de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: UnsupportedOperationException: Solver said unknown: de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 65.0MB. Free memory was 41.1MB in the beginning and 41.0MB in the end (delta: 93.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 266.67ms. Allocated memory is still 92.3MB. Free memory was 68.5MB in the beginning and 57.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.72ms. Allocated memory is still 92.3MB. Free memory was 56.8MB in the beginning and 55.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.69ms. Allocated memory is still 92.3MB. Free memory was 55.2MB in the beginning and 53.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 32233.10ms. Allocated memory is still 92.3MB. Free memory was 53.6MB in the beginning and 58.6MB in the end (delta: -5.0MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * CodeCheck took 18407.05ms. Allocated memory is still 92.3MB. Free memory was 58.6MB in the beginning and 50.7MB in the end (delta: 7.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-24 22:16:41,552 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forcibly destroying the process [2023-11-24 22:16:41,628 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ba5bbbd-4345-48d0-b305-b7edeaa3250f/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Solver said unknown