./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float12.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float12.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b8cf5878e44758bfdbe03c47ec0115857e08941dc4678f844d9c655b0bc177ba --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:38:08,047 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:38:08,161 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 02:38:08,166 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:38:08,166 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:38:08,187 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:38:08,188 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:38:08,188 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:38:08,189 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:38:08,190 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:38:08,191 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:38:08,191 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:38:08,192 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:38:08,193 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:38:08,193 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:38:08,194 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:38:08,194 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:38:08,195 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:38:08,215 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:38:08,215 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:38:08,216 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:38:08,216 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:38:08,217 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:38:08,217 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:38:08,218 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:38:08,218 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:38:08,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:38:08,219 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:38:08,220 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:38:08,220 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:38:08,221 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:38:08,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:38:08,222 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:38:08,222 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_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8cf5878e44758bfdbe03c47ec0115857e08941dc4678f844d9c655b0bc177ba [2023-11-19 02:38:08,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:38:08,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:38:08,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:38:08,542 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:38:08,542 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:38:08,543 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/floats-cbmc-regression/float12.c [2023-11-19 02:38:11,778 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:38:12,032 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:38:12,033 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/sv-benchmarks/c/floats-cbmc-regression/float12.c [2023-11-19 02:38:12,041 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/data/fed4cc88b/3c069c4032884e928d5b1ddfa818ceff/FLAG198d8837b [2023-11-19 02:38:12,057 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/data/fed4cc88b/3c069c4032884e928d5b1ddfa818ceff [2023-11-19 02:38:12,060 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:38:12,061 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:38:12,070 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:38:12,071 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:38:12,076 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:38:12,077 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:38:12" (1/1) ... [2023-11-19 02:38:12,079 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cc69406 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:12, skipping insertion in model container [2023-11-19 02:38:12,080 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:38:12" (1/1) ... [2023-11-19 02:38:12,101 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:38:12,259 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_817545c0-4b19-4fab-8422-8cf876aab8ee/sv-benchmarks/c/floats-cbmc-regression/float12.c[500,513] [2023-11-19 02:38:12,264 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:38:12,275 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:38:12,291 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_817545c0-4b19-4fab-8422-8cf876aab8ee/sv-benchmarks/c/floats-cbmc-regression/float12.c[500,513] [2023-11-19 02:38:12,291 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:38:12,306 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:38:12,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:12 WrapperNode [2023-11-19 02:38:12,307 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:38:12,309 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:38:12,309 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:38:12,309 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:38:12,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:12" (1/1) ... [2023-11-19 02:38:12,325 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:12" (1/1) ... [2023-11-19 02:38:12,342 INFO L138 Inliner]: procedures = 13, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2023-11-19 02:38:12,342 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:38:12,343 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:38:12,343 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:38:12,344 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:38:12,353 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:12" (1/1) ... [2023-11-19 02:38:12,354 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:12" (1/1) ... [2023-11-19 02:38:12,355 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:12" (1/1) ... [2023-11-19 02:38:12,355 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:12" (1/1) ... [2023-11-19 02:38:12,359 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:12" (1/1) ... [2023-11-19 02:38:12,360 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:12" (1/1) ... [2023-11-19 02:38:12,361 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:12" (1/1) ... [2023-11-19 02:38:12,362 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:12" (1/1) ... [2023-11-19 02:38:12,364 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:38:12,365 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:38:12,365 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:38:12,365 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:38:12,366 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:12" (1/1) ... [2023-11-19 02:38:12,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:38:12,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:38:12,401 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:38:12,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:38:12,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:38:12,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:38:12,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:38:12,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:38:12,531 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:38:12,535 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:38:12,629 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:38:12,649 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:38:12,649 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 02:38:12,655 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:38:12 BoogieIcfgContainer [2023-11-19 02:38:12,655 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:38:12,657 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:38:12,657 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:38:12,670 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:38:12,670 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:38:12" (1/1) ... [2023-11-19 02:38:12,684 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:38:12,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:38:12,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-11-19 02:38:12,764 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-11-19 02:38:12,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 02:38:12,767 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:38:12,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:38:12,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:38:12,869 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:38:12,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:38:12,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:38:12,940 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:38:12,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:38:12,960 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-19 02:38:12,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:38:12 ImpRootNode [2023-11-19 02:38:12,985 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:38:12,986 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:38:12,986 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:38:12,987 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:38:12,987 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:38:12" (3/4) ... [2023-11-19 02:38:12,990 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 02:38:12,992 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:38:12,993 INFO L158 Benchmark]: Toolchain (without parser) took 931.80ms. Allocated memory is still 130.0MB. Free memory was 83.0MB in the beginning and 50.6MB in the end (delta: 32.3MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-11-19 02:38:12,994 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory was 98.3MB in the beginning and 98.2MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:38:12,995 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.41ms. Allocated memory is still 130.0MB. Free memory was 83.0MB in the beginning and 72.8MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:38:12,996 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.99ms. Allocated memory is still 130.0MB. Free memory was 72.8MB in the beginning and 71.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:38:12,997 INFO L158 Benchmark]: Boogie Preprocessor took 20.78ms. Allocated memory is still 130.0MB. Free memory was 71.4MB in the beginning and 70.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:38:12,998 INFO L158 Benchmark]: RCFGBuilder took 290.91ms. Allocated memory is still 130.0MB. Free memory was 70.3MB in the beginning and 61.6MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 02:38:12,999 INFO L158 Benchmark]: CodeCheck took 328.49ms. Allocated memory is still 130.0MB. Free memory was 61.6MB in the beginning and 51.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:38:13,000 INFO L158 Benchmark]: Witness Printer took 6.45ms. Allocated memory is still 130.0MB. Free memory was 51.1MB in the beginning and 50.6MB in the end (delta: 427.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:38:13,005 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: 15]: 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 15. Possible FailurePath: [L8] float f = __VERIFIER_nondet_float(); [L9] double d; [L10] unsigned char x = __VERIFIER_nondet_uchar(); [L12] d=f VAL [d=2, f=2] [L14] COND TRUE f==x VAL [d=2, f=2] [L15] COND TRUE !(d==x) VAL [d=2, f=2] [L15] reach_error() VAL [d=2, f=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory was 98.3MB in the beginning and 98.2MB in the end (delta: 142.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 237.41ms. Allocated memory is still 130.0MB. Free memory was 83.0MB in the beginning and 72.8MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.99ms. Allocated memory is still 130.0MB. Free memory was 72.8MB in the beginning and 71.4MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.78ms. Allocated memory is still 130.0MB. Free memory was 71.4MB in the beginning and 70.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 290.91ms. Allocated memory is still 130.0MB. Free memory was 70.3MB in the beginning and 61.6MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 328.49ms. Allocated memory is still 130.0MB. Free memory was 61.6MB in the beginning and 51.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 6.45ms. Allocated memory is still 130.0MB. Free memory was 51.1MB in the beginning and 50.6MB in the end (delta: 427.4kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 02:38:13,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float12.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b8cf5878e44758bfdbe03c47ec0115857e08941dc4678f844d9c655b0bc177ba --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:38:15,720 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:38:15,864 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-19 02:38:15,915 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:38:15,917 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:38:15,918 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:38:15,919 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:38:15,919 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:38:15,920 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:38:15,928 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:38:15,928 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:38:15,929 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:38:15,929 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:38:15,931 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:38:15,931 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:38:15,932 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:38:15,932 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 02:38:15,933 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 02:38:15,933 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 02:38:15,934 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:38:15,935 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:38:15,935 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:38:15,936 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:38:15,936 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:38:15,937 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:38:15,937 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 02:38:15,937 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 02:38:15,938 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:38:15,938 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:38:15,939 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:38:15,940 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:38:15,940 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:38:15,940 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 02:38:15,941 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 02:38:15,941 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:38:15,941 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 02:38:15,942 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 02:38:15,942 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_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8cf5878e44758bfdbe03c47ec0115857e08941dc4678f844d9c655b0bc177ba [2023-11-19 02:38:16,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:38:16,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:38:16,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:38:16,404 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:38:16,405 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:38:16,407 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/floats-cbmc-regression/float12.c [2023-11-19 02:38:19,762 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:38:19,929 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:38:19,930 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/sv-benchmarks/c/floats-cbmc-regression/float12.c [2023-11-19 02:38:19,938 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/data/c382e4766/ff77bb0d9754438d89ed92268cee7a13/FLAG3a9a18cf5 [2023-11-19 02:38:19,950 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/data/c382e4766/ff77bb0d9754438d89ed92268cee7a13 [2023-11-19 02:38:19,952 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:38:19,953 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:38:19,955 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:38:19,955 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:38:19,960 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:38:19,961 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:38:19" (1/1) ... [2023-11-19 02:38:19,962 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76e8e1c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:19, skipping insertion in model container [2023-11-19 02:38:19,962 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:38:19" (1/1) ... [2023-11-19 02:38:19,985 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:38:20,119 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_817545c0-4b19-4fab-8422-8cf876aab8ee/sv-benchmarks/c/floats-cbmc-regression/float12.c[500,513] [2023-11-19 02:38:20,124 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:38:20,140 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:38:20,152 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_817545c0-4b19-4fab-8422-8cf876aab8ee/sv-benchmarks/c/floats-cbmc-regression/float12.c[500,513] [2023-11-19 02:38:20,153 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:38:20,168 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:38:20,169 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:20 WrapperNode [2023-11-19 02:38:20,169 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:38:20,170 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:38:20,171 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:38:20,171 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:38:20,178 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:20" (1/1) ... [2023-11-19 02:38:20,193 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:20" (1/1) ... [2023-11-19 02:38:20,214 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 22 [2023-11-19 02:38:20,215 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:38:20,216 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:38:20,216 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:38:20,217 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:38:20,238 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:20" (1/1) ... [2023-11-19 02:38:20,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:20" (1/1) ... [2023-11-19 02:38:20,258 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:20" (1/1) ... [2023-11-19 02:38:20,258 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:20" (1/1) ... [2023-11-19 02:38:20,264 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:20" (1/1) ... [2023-11-19 02:38:20,268 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:20" (1/1) ... [2023-11-19 02:38:20,277 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:20" (1/1) ... [2023-11-19 02:38:20,279 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:20" (1/1) ... [2023-11-19 02:38:20,281 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:38:20,283 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:38:20,285 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:38:20,285 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:38:20,286 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:20" (1/1) ... [2023-11-19 02:38:20,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:38:20,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:38:20,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:38:20,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:38:20,357 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:38:20,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 02:38:20,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:38:20,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:38:20,423 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:38:20,426 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:38:20,835 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:38:20,867 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:38:20,880 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 02:38:20,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:38:20 BoogieIcfgContainer [2023-11-19 02:38:20,888 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:38:20,889 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:38:20,890 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:38:20,900 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:38:20,900 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:38:20" (1/1) ... [2023-11-19 02:38:20,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:38:20,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:38:20,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2023-11-19 02:38:20,994 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2023-11-19 02:38:20,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-19 02:38:20,997 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:38:20,998 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:38:20,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:38:21,001 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:38:21,009 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 02:38:21,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:38:21,188 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:38:21,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:38:21,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 02:38:22,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:38:26,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:38:26,240 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-19 02:38:33,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result VALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-19 02:38:34,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:38:34,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2023-11-19 02:38:34,030 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2023-11-19 02:38:34,030 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 02:38:34,031 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 2 iterations. [2023-11-19 02:38:34,039 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-19 02:38:34,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:38:34 ImpRootNode [2023-11-19 02:38:34,959 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:38:34,960 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:38:34,960 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:38:34,961 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:38:34,961 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:38:20" (3/4) ... [2023-11-19 02:38:34,964 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 02:38:34,973 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-19 02:38:34,973 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 02:38:34,974 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 02:38:34,974 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 02:38:35,085 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 02:38:35,086 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 02:38:35,086 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:38:35,087 INFO L158 Benchmark]: Toolchain (without parser) took 15133.54ms. Allocated memory is still 73.4MB. Free memory was 45.6MB in the beginning and 44.9MB in the end (delta: 688.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:38:35,088 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 73.4MB. Free memory is still 49.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:38:35,089 INFO L158 Benchmark]: CACSL2BoogieTranslator took 215.01ms. Allocated memory is still 73.4MB. Free memory was 45.4MB in the beginning and 34.8MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:38:35,091 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.37ms. Allocated memory is still 73.4MB. Free memory was 34.8MB in the beginning and 33.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:38:35,094 INFO L158 Benchmark]: Boogie Preprocessor took 66.20ms. Allocated memory is still 73.4MB. Free memory was 33.4MB in the beginning and 52.5MB in the end (delta: -19.2MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. [2023-11-19 02:38:35,102 INFO L158 Benchmark]: RCFGBuilder took 605.04ms. Allocated memory is still 73.4MB. Free memory was 52.5MB in the beginning and 43.0MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:38:35,103 INFO L158 Benchmark]: CodeCheck took 14070.22ms. Allocated memory is still 73.4MB. Free memory was 43.0MB in the beginning and 49.1MB in the end (delta: -6.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:38:35,104 INFO L158 Benchmark]: Witness Printer took 126.21ms. Allocated memory is still 73.4MB. Free memory was 49.1MB in the beginning and 44.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 02:38:35,114 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: 13.1s, 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, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 1 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 1 QuantifiedInterpolants, 27 SizeOfPredicates, 4 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: 15]: 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 0.22ms. Allocated memory is still 73.4MB. Free memory is still 49.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 215.01ms. Allocated memory is still 73.4MB. Free memory was 45.4MB in the beginning and 34.8MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.37ms. Allocated memory is still 73.4MB. Free memory was 34.8MB in the beginning and 33.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 66.20ms. Allocated memory is still 73.4MB. Free memory was 33.4MB in the beginning and 52.5MB in the end (delta: -19.2MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. * RCFGBuilder took 605.04ms. Allocated memory is still 73.4MB. Free memory was 52.5MB in the beginning and 43.0MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 14070.22ms. Allocated memory is still 73.4MB. Free memory was 43.0MB in the beginning and 49.1MB in the end (delta: -6.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 126.21ms. Allocated memory is still 73.4MB. Free memory was 49.1MB in the beginning and 44.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 02:38:35,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_817545c0-4b19-4fab-8422-8cf876aab8ee/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE