./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float1.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_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9 --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 40f0987d901db247b49723cd7ff4aa66943e9671f8ac5275af8edcf28fe04092 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 00:06:35,766 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 00:06:35,829 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 00:06:35,834 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 00:06:35,834 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 00:06:35,855 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 00:06:35,856 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 00:06:35,857 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 00:06:35,857 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 00:06:35,858 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 00:06:35,858 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 00:06:35,859 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 00:06:35,859 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 00:06:35,860 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 00:06:35,860 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 00:06:35,861 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 00:06:35,861 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 00:06:35,862 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 00:06:35,862 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 00:06:35,863 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 00:06:35,863 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 00:06:35,864 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 00:06:35,865 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 00:06:35,865 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 00:06:35,865 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 00:06:35,866 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 00:06:35,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:06:35,867 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 00:06:35,867 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 00:06:35,868 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 00:06:35,868 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 00:06:35,868 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 00:06:35,869 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 00:06:35,869 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_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40f0987d901db247b49723cd7ff4aa66943e9671f8ac5275af8edcf28fe04092 [2023-12-03 00:06:36,075 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 00:06:36,100 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 00:06:36,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 00:06:36,104 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 00:06:36,104 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 00:06:36,106 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/floats-cbmc-regression/float1.c [2023-12-03 00:06:38,862 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 00:06:39,011 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 00:06:39,012 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/sv-benchmarks/c/floats-cbmc-regression/float1.c [2023-12-03 00:06:39,018 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/data/c58d10871/154f99167bba433b84a73442a5add325/FLAGeb60fb4f0 [2023-12-03 00:06:39,029 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/data/c58d10871/154f99167bba433b84a73442a5add325 [2023-12-03 00:06:39,032 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 00:06:39,033 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 00:06:39,035 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 00:06:39,035 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 00:06:39,038 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 00:06:39,039 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:06:39" (1/1) ... [2023-12-03 00:06:39,040 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4587a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:06:39, skipping insertion in model container [2023-12-03 00:06:39,040 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:06:39" (1/1) ... [2023-12-03 00:06:39,055 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 00:06:39,172 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/sv-benchmarks/c/floats-cbmc-regression/float1.c[371,384] [2023-12-03 00:06:39,176 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_7cbe3290-1047-422d-86c2-e2b8595a42e1/sv-benchmarks/c/floats-cbmc-regression/float1.c[525,538] [2023-12-03 00:06:39,177 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:06:39,186 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 00:06:39,197 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_7cbe3290-1047-422d-86c2-e2b8595a42e1/sv-benchmarks/c/floats-cbmc-regression/float1.c[371,384] [2023-12-03 00:06:39,198 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_7cbe3290-1047-422d-86c2-e2b8595a42e1/sv-benchmarks/c/floats-cbmc-regression/float1.c[525,538] [2023-12-03 00:06:39,199 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:06:39,209 INFO L206 MainTranslator]: Completed translation [2023-12-03 00:06:39,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:06:39 WrapperNode [2023-12-03 00:06:39,210 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 00:06:39,210 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 00:06:39,211 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 00:06:39,211 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 00:06:39,216 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:06:39" (1/1) ... [2023-12-03 00:06:39,222 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:06:39" (1/1) ... [2023-12-03 00:06:39,234 INFO L138 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2023-12-03 00:06:39,235 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 00:06:39,235 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 00:06:39,235 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 00:06:39,236 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 00:06:39,242 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:06:39" (1/1) ... [2023-12-03 00:06:39,242 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:06:39" (1/1) ... [2023-12-03 00:06:39,243 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:06:39" (1/1) ... [2023-12-03 00:06:39,243 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:06:39" (1/1) ... [2023-12-03 00:06:39,246 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:06:39" (1/1) ... [2023-12-03 00:06:39,247 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:06:39" (1/1) ... [2023-12-03 00:06:39,248 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:06:39" (1/1) ... [2023-12-03 00:06:39,249 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:06:39" (1/1) ... [2023-12-03 00:06:39,250 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 00:06:39,251 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 00:06:39,251 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 00:06:39,252 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 00:06:39,252 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:06:39" (1/1) ... [2023-12-03 00:06:39,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:06:39,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 00:06:39,277 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 00:06:39,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 00:06:39,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 00:06:39,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 00:06:39,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 00:06:39,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 00:06:39,364 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 00:06:39,366 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 00:06:39,432 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 00:06:39,450 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 00:06:39,450 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 00:06:39,452 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:06:39 BoogieIcfgContainer [2023-12-03 00:06:39,452 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 00:06:39,453 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 00:06:39,453 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 00:06:39,463 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 00:06:39,463 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:06:39" (1/1) ... [2023-12-03 00:06:39,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 00:06:39,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:06:39,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2023-12-03 00:06:39,529 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2023-12-03 00:06:39,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-03 00:06:39,531 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:06:39,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:06:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:06:39,610 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 00:06:39,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:06:39,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:06:39,652 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 00:06:39,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 00:06:39,661 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-12-03 00:06:39,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 12:06:39 ImpRootNode [2023-12-03 00:06:39,681 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 00:06:39,682 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 00:06:39,682 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 00:06:39,682 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 00:06:39,682 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:06:39" (3/4) ... [2023-12-03 00:06:39,684 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-12-03 00:06:39,686 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 00:06:39,687 INFO L158 Benchmark]: Toolchain (without parser) took 652.80ms. Allocated memory is still 140.5MB. Free memory was 102.5MB in the beginning and 70.3MB in the end (delta: 32.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-12-03 00:06:39,687 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 96.5MB. Free memory is still 50.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:06:39,688 INFO L158 Benchmark]: CACSL2BoogieTranslator took 175.14ms. Allocated memory is still 140.5MB. Free memory was 102.5MB in the beginning and 92.4MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 00:06:39,688 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.47ms. Allocated memory is still 140.5MB. Free memory was 92.0MB in the beginning and 90.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 00:06:39,689 INFO L158 Benchmark]: Boogie Preprocessor took 15.04ms. Allocated memory is still 140.5MB. Free memory was 90.9MB in the beginning and 90.0MB in the end (delta: 890.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:06:39,690 INFO L158 Benchmark]: RCFGBuilder took 201.08ms. Allocated memory is still 140.5MB. Free memory was 89.6MB in the beginning and 80.8MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 00:06:39,690 INFO L158 Benchmark]: CodeCheck took 227.88ms. Allocated memory is still 140.5MB. Free memory was 80.8MB in the beginning and 70.8MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-03 00:06:39,691 INFO L158 Benchmark]: Witness Printer took 4.08ms. Allocated memory is still 140.5MB. Free memory is still 70.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:06:39,694 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, 10 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 12]: 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 to_int at line 10, overapproximation of someBinaryArithmeticDOUBLEoperation at line 9, overapproximation of to_real at line 8. Possible FailurePath: [L5] double x; [L6] int y; [L8] x=2 [L9] x-=0.6 [L10] y=x [L12] COND TRUE !(y==1) VAL [y=4] [L12] reach_error() VAL [y=4] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 96.5MB. Free memory is still 50.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 175.14ms. Allocated memory is still 140.5MB. Free memory was 102.5MB in the beginning and 92.4MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.47ms. Allocated memory is still 140.5MB. Free memory was 92.0MB in the beginning and 90.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.04ms. Allocated memory is still 140.5MB. Free memory was 90.9MB in the beginning and 90.0MB in the end (delta: 890.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 201.08ms. Allocated memory is still 140.5MB. Free memory was 89.6MB in the beginning and 80.8MB in the end (delta: 8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 227.88ms. Allocated memory is still 140.5MB. Free memory was 80.8MB in the beginning and 70.8MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 4.08ms. Allocated memory is still 140.5MB. Free memory is still 70.3MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-12-03 00:06:39,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/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_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9 --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 40f0987d901db247b49723cd7ff4aa66943e9671f8ac5275af8edcf28fe04092 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 00:06:41,599 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 00:06:41,678 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-12-03 00:06:41,710 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 00:06:41,711 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 00:06:41,711 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 00:06:41,712 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 00:06:41,712 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 00:06:41,713 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 00:06:41,714 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 00:06:41,714 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 00:06:41,715 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 00:06:41,715 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 00:06:41,716 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 00:06:41,716 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 00:06:41,717 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 00:06:41,717 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 00:06:41,718 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 00:06:41,718 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 00:06:41,719 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 00:06:41,719 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 00:06:41,725 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 00:06:41,725 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 00:06:41,725 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 00:06:41,726 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 00:06:41,726 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 00:06:41,727 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 00:06:41,727 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 00:06:41,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:06:41,728 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 00:06:41,728 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 00:06:41,729 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 00:06:41,729 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 00:06:41,729 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 00:06:41,729 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 00:06:41,730 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 00:06:41,730 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 00:06:41,730 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_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40f0987d901db247b49723cd7ff4aa66943e9671f8ac5275af8edcf28fe04092 [2023-12-03 00:06:42,013 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 00:06:42,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 00:06:42,035 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 00:06:42,037 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 00:06:42,037 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 00:06:42,038 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/floats-cbmc-regression/float1.c [2023-12-03 00:06:44,814 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 00:06:44,998 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 00:06:44,999 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/sv-benchmarks/c/floats-cbmc-regression/float1.c [2023-12-03 00:06:45,006 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/data/655bef5d7/b745f81dc1c94ff98d53980b01038fd1/FLAGcefcb5348 [2023-12-03 00:06:45,021 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/data/655bef5d7/b745f81dc1c94ff98d53980b01038fd1 [2023-12-03 00:06:45,024 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 00:06:45,025 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 00:06:45,027 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 00:06:45,027 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 00:06:45,032 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 00:06:45,033 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:06:45" (1/1) ... [2023-12-03 00:06:45,034 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8180b39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:06:45, skipping insertion in model container [2023-12-03 00:06:45,034 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:06:45" (1/1) ... [2023-12-03 00:06:45,053 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 00:06:45,203 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_7cbe3290-1047-422d-86c2-e2b8595a42e1/sv-benchmarks/c/floats-cbmc-regression/float1.c[371,384] [2023-12-03 00:06:45,208 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_7cbe3290-1047-422d-86c2-e2b8595a42e1/sv-benchmarks/c/floats-cbmc-regression/float1.c[525,538] [2023-12-03 00:06:45,210 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:06:45,226 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 00:06:45,239 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_7cbe3290-1047-422d-86c2-e2b8595a42e1/sv-benchmarks/c/floats-cbmc-regression/float1.c[371,384] [2023-12-03 00:06:45,241 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_7cbe3290-1047-422d-86c2-e2b8595a42e1/sv-benchmarks/c/floats-cbmc-regression/float1.c[525,538] [2023-12-03 00:06:45,241 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:06:45,257 INFO L206 MainTranslator]: Completed translation [2023-12-03 00:06:45,257 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:06:45 WrapperNode [2023-12-03 00:06:45,257 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 00:06:45,258 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 00:06:45,259 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 00:06:45,259 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 00:06:45,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:06:45" (1/1) ... [2023-12-03 00:06:45,275 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:06:45" (1/1) ... [2023-12-03 00:06:45,291 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2023-12-03 00:06:45,291 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 00:06:45,292 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 00:06:45,292 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 00:06:45,293 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 00:06:45,301 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:06:45" (1/1) ... [2023-12-03 00:06:45,301 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:06:45" (1/1) ... [2023-12-03 00:06:45,304 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:06:45" (1/1) ... [2023-12-03 00:06:45,304 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:06:45" (1/1) ... [2023-12-03 00:06:45,310 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:06:45" (1/1) ... [2023-12-03 00:06:45,312 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:06:45" (1/1) ... [2023-12-03 00:06:45,314 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:06:45" (1/1) ... [2023-12-03 00:06:45,315 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:06:45" (1/1) ... [2023-12-03 00:06:45,318 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 00:06:45,319 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 00:06:45,319 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 00:06:45,320 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 00:06:45,321 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:06:45" (1/1) ... [2023-12-03 00:06:45,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:06:45,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 00:06:45,350 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 00:06:45,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 00:06:45,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 00:06:45,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 00:06:45,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 00:06:45,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 00:06:45,464 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 00:06:45,466 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 00:06:46,006 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 00:06:46,032 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 00:06:46,033 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-03 00:06:46,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:06:46 BoogieIcfgContainer [2023-12-03 00:06:46,035 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 00:06:46,036 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 00:06:46,036 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 00:06:46,046 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 00:06:46,046 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:06:46" (1/1) ... [2023-12-03 00:06:46,060 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 00:06:46,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:06:46,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2023-12-03 00:06:46,120 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2023-12-03 00:06:46,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-03 00:06:46,122 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:06:46,122 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:06:46,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:06:46,147 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:06:46,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 00:06:46,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:06:46,319 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:06:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:06:46,502 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 00:06:46,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:06:46,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:06:46,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 00:06:46,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:06:46,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-12-03 00:06:46,868 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-12-03 00:06:46,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-03 00:06:46,869 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:06:46,869 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 00:06:46,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 00:06:46,870 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 00:06:46,871 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 00:06:47,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:06:47,109 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 00:06:47,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:06:47,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 00:06:47,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:06:47,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:06:47,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 00:06:49,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:06:49,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 6 states and 5 transitions. [2023-12-03 00:06:49,011 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2023-12-03 00:06:49,011 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 00:06:49,011 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2023-12-03 00:06:49,019 INFO L751 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2023-12-03 00:06:49,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 12:06:49 ImpRootNode [2023-12-03 00:06:49,039 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 00:06:49,039 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 00:06:49,039 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 00:06:49,040 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 00:06:49,040 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:06:46" (3/4) ... [2023-12-03 00:06:49,042 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 00:06:49,048 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-12-03 00:06:49,048 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-12-03 00:06:49,048 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-03 00:06:49,048 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 00:06:49,111 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 00:06:49,111 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 00:06:49,112 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 00:06:49,112 INFO L158 Benchmark]: Toolchain (without parser) took 4086.85ms. Allocated memory is still 94.4MB. Free memory was 71.6MB in the beginning and 49.5MB in the end (delta: 22.2MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2023-12-03 00:06:49,113 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 62.9MB. Free memory is still 39.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:06:49,113 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.83ms. Allocated memory is still 94.4MB. Free memory was 71.4MB in the beginning and 60.8MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 00:06:49,114 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.14ms. Allocated memory is still 94.4MB. Free memory was 60.8MB in the beginning and 59.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:06:49,115 INFO L158 Benchmark]: Boogie Preprocessor took 26.21ms. Allocated memory is still 94.4MB. Free memory was 59.3MB in the beginning and 58.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 00:06:49,115 INFO L158 Benchmark]: RCFGBuilder took 715.60ms. Allocated memory is still 94.4MB. Free memory was 58.0MB in the beginning and 47.8MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 00:06:49,116 INFO L158 Benchmark]: CodeCheck took 3003.11ms. Allocated memory is still 94.4MB. Free memory was 47.8MB in the beginning and 53.6MB in the end (delta: -5.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:06:49,116 INFO L158 Benchmark]: Witness Printer took 72.28ms. Allocated memory is still 94.4MB. Free memory was 53.6MB in the beginning and 49.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 00:06:49,119 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, 10 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 3 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 7 NumberOfNonLiveVariables, 37 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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: 12]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 19]: 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 2 specifications checked. All of them hold * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 62.9MB. Free memory is still 39.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 230.83ms. Allocated memory is still 94.4MB. Free memory was 71.4MB in the beginning and 60.8MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.14ms. Allocated memory is still 94.4MB. Free memory was 60.8MB in the beginning and 59.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.21ms. Allocated memory is still 94.4MB. Free memory was 59.3MB in the beginning and 58.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 715.60ms. Allocated memory is still 94.4MB. Free memory was 58.0MB in the beginning and 47.8MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 3003.11ms. Allocated memory is still 94.4MB. Free memory was 47.8MB in the beginning and 53.6MB in the end (delta: -5.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 72.28ms. Allocated memory is still 94.4MB. Free memory was 53.6MB in the beginning and 49.5MB 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! [2023-12-03 00:06:49,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbe3290-1047-422d-86c2-e2b8595a42e1/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE