./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/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_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/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_dbcc7528-c487-4a12-ba9f-14da113ad73d/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 098bb68c9788336ffa4c6e074693ab2367c9ebfab2531a443a5312e0095ec011 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:04:15,763 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:04:15,831 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:04:15,836 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:04:15,837 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:04:15,870 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:04:15,871 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:04:15,872 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:04:15,872 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:04:15,873 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:04:15,874 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:04:15,874 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:04:15,875 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:04:15,875 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:04:15,876 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:04:15,876 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:04:15,877 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:04:15,877 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:04:15,880 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:04:15,883 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:04:15,884 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:04:15,892 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:04:15,892 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:04:15,892 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:04:15,893 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:04:15,893 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:04:15,893 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:04:15,894 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:04:15,894 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:04:15,895 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:04:15,895 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:04:15,895 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:04:15,896 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:04:15,896 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_dbcc7528-c487-4a12-ba9f-14da113ad73d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 098bb68c9788336ffa4c6e074693ab2367c9ebfab2531a443a5312e0095ec011 [2023-11-19 03:04:16,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:04:16,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:04:16,169 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:04:16,170 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:04:16,173 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:04:16,174 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2023-11-19 03:04:19,278 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:04:19,503 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:04:19,504 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2023-11-19 03:04:19,513 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL/data/9131243d5/3f37faeec3e846eca01892bd0b8069c6/FLAG9c3d2ac78 [2023-11-19 03:04:19,525 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL/data/9131243d5/3f37faeec3e846eca01892bd0b8069c6 [2023-11-19 03:04:19,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:04:19,530 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:04:19,531 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:04:19,532 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:04:19,536 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:04:19,536 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:04:19" (1/1) ... [2023-11-19 03:04:19,537 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c64c020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:19, skipping insertion in model container [2023-11-19 03:04:19,538 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:04:19" (1/1) ... [2023-11-19 03:04:19,566 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:04:19,707 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_dbcc7528-c487-4a12-ba9f-14da113ad73d/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2023-11-19 03:04:19,712 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:04:19,724 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:04:19,734 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_dbcc7528-c487-4a12-ba9f-14da113ad73d/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2023-11-19 03:04:19,734 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:04:19,749 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:04:19,749 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:19 WrapperNode [2023-11-19 03:04:19,749 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:04:19,750 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:04:19,751 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:04:19,751 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:04:19,759 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:19" (1/1) ... [2023-11-19 03:04:19,765 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:19" (1/1) ... [2023-11-19 03:04:19,779 INFO L138 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 14 [2023-11-19 03:04:19,779 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:04:19,779 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:04:19,780 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:04:19,780 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:04:19,786 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:19" (1/1) ... [2023-11-19 03:04:19,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:19" (1/1) ... [2023-11-19 03:04:19,787 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:19" (1/1) ... [2023-11-19 03:04:19,787 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:19" (1/1) ... [2023-11-19 03:04:19,790 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:19" (1/1) ... [2023-11-19 03:04:19,792 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:19" (1/1) ... [2023-11-19 03:04:19,792 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:19" (1/1) ... [2023-11-19 03:04:19,793 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:19" (1/1) ... [2023-11-19 03:04:19,795 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:04:19,796 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:04:19,796 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:04:19,796 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:04:19,797 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:19" (1/1) ... [2023-11-19 03:04:19,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:04:19,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:04:19,830 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:04:19,834 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:04:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:04:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:04:19,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:04:19,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:04:19,919 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:04:19,921 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:04:20,000 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:04:20,016 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:04:20,016 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:04:20,021 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:04:20 BoogieIcfgContainer [2023-11-19 03:04:20,021 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:04:20,022 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:04:20,022 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:04:20,033 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:04:20,033 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:04:20" (1/1) ... [2023-11-19 03:04:20,043 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:04:20,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:04:20,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2023-11-19 03:04:20,095 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2023-11-19 03:04:20,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 03:04:20,096 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:04:20,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:04:20,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:04:20,182 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:04:20,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:04:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:04:20,226 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:04:20,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:04:20,237 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-19 03:04:20,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:04:20 ImpRootNode [2023-11-19 03:04:20,256 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:04:20,257 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:04:20,257 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:04:20,257 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:04:20,258 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:04:20" (3/4) ... [2023-11-19 03:04:20,260 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 03:04:20,261 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:04:20,262 INFO L158 Benchmark]: Toolchain (without parser) took 732.31ms. Allocated memory is still 144.7MB. Free memory was 104.1MB in the beginning and 72.0MB in the end (delta: 32.0MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-19 03:04:20,263 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 117.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:04:20,264 INFO L158 Benchmark]: CACSL2BoogieTranslator took 218.40ms. Allocated memory is still 144.7MB. Free memory was 103.8MB in the beginning and 94.0MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:04:20,264 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.66ms. Allocated memory is still 144.7MB. Free memory was 94.0MB in the beginning and 92.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:04:20,265 INFO L158 Benchmark]: Boogie Preprocessor took 15.25ms. Allocated memory is still 144.7MB. Free memory was 92.4MB in the beginning and 91.5MB in the end (delta: 891.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:04:20,266 INFO L158 Benchmark]: RCFGBuilder took 225.53ms. Allocated memory is still 144.7MB. Free memory was 91.5MB in the beginning and 82.5MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:04:20,266 INFO L158 Benchmark]: CodeCheck took 234.26ms. Allocated memory is still 144.7MB. Free memory was 82.5MB in the beginning and 72.3MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 03:04:20,267 INFO L158 Benchmark]: Witness Printer took 4.65ms. Allocated memory is still 144.7MB. Free memory was 72.3MB in the beginning and 72.0MB in the end (delta: 299.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:04:20,271 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, 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: 10]: 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 someBinaryArithmeticFLOAToperation at line 8. Possible FailurePath: [L8] float fs1=2.0f/6.0f; [L9] float fs2=fs1*6.0f; [L10] COND TRUE !((int)fs2==2) [L10] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 117.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 218.40ms. Allocated memory is still 144.7MB. Free memory was 103.8MB in the beginning and 94.0MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.66ms. Allocated memory is still 144.7MB. Free memory was 94.0MB in the beginning and 92.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.25ms. Allocated memory is still 144.7MB. Free memory was 92.4MB in the beginning and 91.5MB in the end (delta: 891.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 225.53ms. Allocated memory is still 144.7MB. Free memory was 91.5MB in the beginning and 82.5MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 234.26ms. Allocated memory is still 144.7MB. Free memory was 82.5MB in the beginning and 72.3MB in the end (delta: 10.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 4.65ms. Allocated memory is still 144.7MB. Free memory was 72.3MB in the beginning and 72.0MB in the end (delta: 299.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 03:04:20,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/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_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/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_dbcc7528-c487-4a12-ba9f-14da113ad73d/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 098bb68c9788336ffa4c6e074693ab2367c9ebfab2531a443a5312e0095ec011 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:04:22,927 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:04:23,079 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-19 03:04:23,135 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:04:23,136 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:04:23,137 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:04:23,138 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:04:23,139 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:04:23,140 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:04:23,145 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:04:23,145 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:04:23,146 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:04:23,146 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:04:23,148 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:04:23,148 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:04:23,149 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:04:23,149 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 03:04:23,149 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 03:04:23,150 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 03:04:23,150 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:04:23,151 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:04:23,151 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:04:23,152 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:04:23,152 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:04:23,152 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:04:23,153 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:04:23,153 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 03:04:23,154 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:04:23,154 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:04:23,154 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:04:23,156 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:04:23,156 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:04:23,156 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 03:04:23,157 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:04:23,157 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:04:23,157 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 03:04:23,158 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 03:04:23,158 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_dbcc7528-c487-4a12-ba9f-14da113ad73d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 098bb68c9788336ffa4c6e074693ab2367c9ebfab2531a443a5312e0095ec011 [2023-11-19 03:04:23,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:04:23,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:04:23,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:04:23,579 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:04:23,579 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:04:23,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2023-11-19 03:04:26,767 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:04:27,044 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:04:27,045 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c [2023-11-19 03:04:27,053 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL/data/f4dd2f090/95ffbc6d6e924debb72f4c13a89748c5/FLAG570bd7222 [2023-11-19 03:04:27,070 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL/data/f4dd2f090/95ffbc6d6e924debb72f4c13a89748c5 [2023-11-19 03:04:27,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:04:27,074 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:04:27,075 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:04:27,075 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:04:27,081 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:04:27,082 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:04:27" (1/1) ... [2023-11-19 03:04:27,083 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52596448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:27, skipping insertion in model container [2023-11-19 03:04:27,083 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:04:27" (1/1) ... [2023-11-19 03:04:27,101 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:04:27,288 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_dbcc7528-c487-4a12-ba9f-14da113ad73d/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2023-11-19 03:04:27,294 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:04:27,314 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:04:27,334 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_dbcc7528-c487-4a12-ba9f-14da113ad73d/sv-benchmarks/c/floats-cbmc-regression/float-no-simp3.c[358,371] [2023-11-19 03:04:27,335 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:04:27,354 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:04:27,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:27 WrapperNode [2023-11-19 03:04:27,354 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:04:27,356 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:04:27,356 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:04:27,356 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:04:27,364 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:27" (1/1) ... [2023-11-19 03:04:27,380 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:27" (1/1) ... [2023-11-19 03:04:27,398 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 15 [2023-11-19 03:04:27,398 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:04:27,400 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:04:27,400 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:04:27,400 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:04:27,409 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:27" (1/1) ... [2023-11-19 03:04:27,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:27" (1/1) ... [2023-11-19 03:04:27,424 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:27" (1/1) ... [2023-11-19 03:04:27,425 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:27" (1/1) ... [2023-11-19 03:04:27,430 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:27" (1/1) ... [2023-11-19 03:04:27,431 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:27" (1/1) ... [2023-11-19 03:04:27,433 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:27" (1/1) ... [2023-11-19 03:04:27,434 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:27" (1/1) ... [2023-11-19 03:04:27,444 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:04:27,445 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:04:27,446 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:04:27,446 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:04:27,447 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:04:27" (1/1) ... [2023-11-19 03:04:27,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:04:27,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:04:27,481 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:04:27,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:04:27,528 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:04:27,528 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:04:27,528 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:04:27,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 03:04:27,609 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:04:27,612 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:04:27,843 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:04:27,866 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:04:27,867 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:04:27,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:04:27 BoogieIcfgContainer [2023-11-19 03:04:27,874 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:04:27,876 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:04:27,876 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:04:27,886 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:04:27,887 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:04:27" (1/1) ... [2023-11-19 03:04:27,898 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:04:27,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:04:27,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2023-11-19 03:04:27,960 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2023-11-19 03:04:27,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 03:04:27,963 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:04:27,963 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:04:27,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:04:27,967 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:04:27,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 03:04:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:04:28,118 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:04:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:04:28,216 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 03:04:28,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:04:28,287 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 03:04:28,289 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:04:28,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-19 03:04:28,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:04:28,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 4 states and 3 transitions. [2023-11-19 03:04:28,488 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions. [2023-11-19 03:04:28,488 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 03:04:28,488 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 2 iterations. [2023-11-19 03:04:28,496 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-19 03:04:28,506 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:04:28 ImpRootNode [2023-11-19 03:04:28,507 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:04:28,508 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:04:28,508 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:04:28,508 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:04:28,509 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:04:27" (3/4) ... [2023-11-19 03:04:28,511 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 03:04:28,518 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-19 03:04:28,518 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 03:04:28,519 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 03:04:28,519 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 03:04:28,594 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:04:28,594 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 03:04:28,595 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:04:28,595 INFO L158 Benchmark]: Toolchain (without parser) took 1521.52ms. Allocated memory is still 88.1MB. Free memory was 64.5MB in the beginning and 49.4MB in the end (delta: 15.1MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2023-11-19 03:04:28,596 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 88.1MB. Free memory is still 64.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:04:28,597 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.63ms. Allocated memory is still 88.1MB. Free memory was 64.3MB in the beginning and 53.7MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:04:28,597 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.68ms. Allocated memory is still 88.1MB. Free memory was 53.5MB in the beginning and 52.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:04:28,598 INFO L158 Benchmark]: Boogie Preprocessor took 44.34ms. Allocated memory is still 88.1MB. Free memory was 52.1MB in the beginning and 51.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:04:28,598 INFO L158 Benchmark]: RCFGBuilder took 428.88ms. Allocated memory is still 88.1MB. Free memory was 50.8MB in the beginning and 65.1MB in the end (delta: -14.2MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2023-11-19 03:04:28,599 INFO L158 Benchmark]: CodeCheck took 631.16ms. Allocated memory is still 88.1MB. Free memory was 65.1MB in the beginning and 53.3MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:04:28,600 INFO L158 Benchmark]: Witness Printer took 87.14ms. Allocated memory is still 88.1MB. Free memory was 53.3MB in the beginning and 49.4MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:04:28,603 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 1 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 SizeOfPredicates, 3 NumberOfNonLiveVariables, 17 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 10]: 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 88.1MB. Free memory is still 64.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.63ms. Allocated memory is still 88.1MB. Free memory was 64.3MB in the beginning and 53.7MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.68ms. Allocated memory is still 88.1MB. Free memory was 53.5MB in the beginning and 52.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.34ms. Allocated memory is still 88.1MB. Free memory was 52.1MB in the beginning and 51.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 428.88ms. Allocated memory is still 88.1MB. Free memory was 50.8MB in the beginning and 65.1MB in the end (delta: -14.2MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * CodeCheck took 631.16ms. Allocated memory is still 88.1MB. Free memory was 65.1MB in the beginning and 53.3MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 87.14ms. Allocated memory is still 88.1MB. Free memory was 53.3MB in the beginning and 49.4MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 03:04:28,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbcc7528-c487-4a12-ba9f-14da113ad73d/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