./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 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/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_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/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_15166384-6d23-46c2-ace0-cf98a5e28d41/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 40f0987d901db247b49723cd7ff4aa66943e9671f8ac5275af8edcf28fe04092 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:47:07,869 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:47:07,988 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 02:47:08,005 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:47:08,006 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:47:08,052 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:47:08,053 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:47:08,054 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:47:08,055 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:47:08,059 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:47:08,061 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:47:08,061 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:47:08,062 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:47:08,063 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:47:08,064 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:47:08,064 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:47:08,065 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:47:08,065 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:47:08,066 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:47:08,066 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:47:08,067 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:47:08,067 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:47:08,068 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:47:08,068 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:47:08,069 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:47:08,070 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:47:08,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:47:08,071 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:47:08,071 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:47:08,071 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:47:08,073 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:47:08,073 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:47:08,073 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:47:08,074 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_15166384-6d23-46c2-ace0-cf98a5e28d41/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40f0987d901db247b49723cd7ff4aa66943e9671f8ac5275af8edcf28fe04092 [2023-11-19 02:47:08,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:47:08,421 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:47:08,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:47:08,425 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:47:08,425 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:47:08,427 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/floats-cbmc-regression/float1.c [2023-11-19 02:47:11,467 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:47:11,679 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:47:11,680 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/sv-benchmarks/c/floats-cbmc-regression/float1.c [2023-11-19 02:47:11,686 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/data/e18e0a265/dcc1b7776cd3462385262b35d248b7b9/FLAGbba76fba1 [2023-11-19 02:47:11,700 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/data/e18e0a265/dcc1b7776cd3462385262b35d248b7b9 [2023-11-19 02:47:11,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:47:11,704 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:47:11,706 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:47:11,706 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:47:11,711 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:47:11,712 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:47:11" (1/1) ... [2023-11-19 02:47:11,713 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cc5f27a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:11, skipping insertion in model container [2023-11-19 02:47:11,713 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:47:11" (1/1) ... [2023-11-19 02:47:11,733 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:47:11,903 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_15166384-6d23-46c2-ace0-cf98a5e28d41/sv-benchmarks/c/floats-cbmc-regression/float1.c[371,384] [2023-11-19 02:47:11,910 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_15166384-6d23-46c2-ace0-cf98a5e28d41/sv-benchmarks/c/floats-cbmc-regression/float1.c[525,538] [2023-11-19 02:47:11,911 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:47:11,926 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:47:11,941 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_15166384-6d23-46c2-ace0-cf98a5e28d41/sv-benchmarks/c/floats-cbmc-regression/float1.c[371,384] [2023-11-19 02:47:11,944 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_15166384-6d23-46c2-ace0-cf98a5e28d41/sv-benchmarks/c/floats-cbmc-regression/float1.c[525,538] [2023-11-19 02:47:11,944 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:47:11,959 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:47:11,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:11 WrapperNode [2023-11-19 02:47:11,960 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:47:11,962 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:47:11,962 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:47:11,963 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:47:11,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:11" (1/1) ... [2023-11-19 02:47:11,979 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:11" (1/1) ... [2023-11-19 02:47:11,997 INFO L138 Inliner]: procedures = 11, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 23 [2023-11-19 02:47:11,998 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:47:11,999 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:47:12,000 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:47:12,000 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:47:12,009 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:11" (1/1) ... [2023-11-19 02:47:12,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:11" (1/1) ... [2023-11-19 02:47:12,011 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:11" (1/1) ... [2023-11-19 02:47:12,012 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:11" (1/1) ... [2023-11-19 02:47:12,016 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:11" (1/1) ... [2023-11-19 02:47:12,017 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:11" (1/1) ... [2023-11-19 02:47:12,022 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:11" (1/1) ... [2023-11-19 02:47:12,023 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:11" (1/1) ... [2023-11-19 02:47:12,024 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:47:12,026 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:47:12,026 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:47:12,026 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:47:12,027 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:11" (1/1) ... [2023-11-19 02:47:12,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:47:12,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:47:12,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:47:12,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:47:12,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:47:12,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:47:12,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:47:12,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:47:12,179 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:47:12,182 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:47:12,309 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:47:12,324 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:47:12,325 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 02:47:12,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:47:12 BoogieIcfgContainer [2023-11-19 02:47:12,329 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:47:12,331 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:47:12,331 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:47:12,342 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:47:12,342 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:47:12" (1/1) ... [2023-11-19 02:47:12,352 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:47:12,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:47:12,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2023-11-19 02:47:12,403 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2023-11-19 02:47:12,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 02:47:12,406 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:47:12,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:47:12,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:47:12,484 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:47:12,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:47:12,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:47:12,537 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:47:12,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:47:12,547 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-19 02:47:12,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:47:12 ImpRootNode [2023-11-19 02:47:12,568 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:47:12,568 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:47:12,569 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:47:12,569 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:47:12,569 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:47:12" (3/4) ... [2023-11-19 02:47:12,572 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 02:47:12,573 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:47:12,574 INFO L158 Benchmark]: Toolchain (without parser) took 869.64ms. Allocated memory is still 163.6MB. Free memory was 124.3MB in the beginning and 91.4MB in the end (delta: 32.9MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-19 02:47:12,575 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 127.9MB. Free memory was 75.9MB in the beginning and 75.8MB in the end (delta: 119.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:47:12,576 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.64ms. Allocated memory is still 163.6MB. Free memory was 123.7MB in the beginning and 113.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:47:12,577 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.01ms. Allocated memory is still 163.6MB. Free memory was 113.7MB in the beginning and 112.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:47:12,577 INFO L158 Benchmark]: Boogie Preprocessor took 25.12ms. Allocated memory is still 163.6MB. Free memory was 112.0MB in the beginning and 111.4MB in the end (delta: 682.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:47:12,578 INFO L158 Benchmark]: RCFGBuilder took 303.96ms. Allocated memory is still 163.6MB. Free memory was 110.8MB in the beginning and 101.8MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:47:12,579 INFO L158 Benchmark]: CodeCheck took 237.29ms. Allocated memory is still 163.6MB. Free memory was 101.8MB in the beginning and 91.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:47:12,579 INFO L158 Benchmark]: Witness Printer took 4.64ms. Allocated memory is still 163.6MB. Free memory is still 91.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:47:12,582 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 0.36ms. Allocated memory is still 127.9MB. Free memory was 75.9MB in the beginning and 75.8MB in the end (delta: 119.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 254.64ms. Allocated memory is still 163.6MB. Free memory was 123.7MB in the beginning and 113.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.01ms. Allocated memory is still 163.6MB. Free memory was 113.7MB in the beginning and 112.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.12ms. Allocated memory is still 163.6MB. Free memory was 112.0MB in the beginning and 111.4MB in the end (delta: 682.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 303.96ms. Allocated memory is still 163.6MB. Free memory was 110.8MB in the beginning and 101.8MB in the end (delta: 9.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 237.29ms. Allocated memory is still 163.6MB. Free memory was 101.8MB in the beginning and 91.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 4.64ms. Allocated memory is still 163.6MB. Free memory is still 91.4MB. There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 02:47:12,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/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_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/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_15166384-6d23-46c2-ace0-cf98a5e28d41/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 40f0987d901db247b49723cd7ff4aa66943e9671f8ac5275af8edcf28fe04092 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:47:15,341 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:47:15,412 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-19 02:47:15,444 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:47:15,445 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:47:15,446 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:47:15,447 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:47:15,447 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:47:15,448 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:47:15,449 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:47:15,449 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:47:15,450 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:47:15,451 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:47:15,451 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:47:15,452 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:47:15,453 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:47:15,453 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 02:47:15,454 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 02:47:15,455 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 02:47:15,455 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:47:15,456 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:47:15,457 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:47:15,457 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:47:15,458 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:47:15,459 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:47:15,459 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 02:47:15,460 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 02:47:15,463 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:47:15,464 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:47:15,465 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:47:15,465 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:47:15,466 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:47:15,467 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 02:47:15,467 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 02:47:15,468 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:47:15,468 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 02:47:15,468 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 02:47:15,469 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_15166384-6d23-46c2-ace0-cf98a5e28d41/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 40f0987d901db247b49723cd7ff4aa66943e9671f8ac5275af8edcf28fe04092 [2023-11-19 02:47:15,920 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:47:15,949 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:47:15,952 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:47:15,954 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:47:15,954 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:47:15,956 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/floats-cbmc-regression/float1.c [2023-11-19 02:47:19,263 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:47:19,530 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:47:19,531 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/sv-benchmarks/c/floats-cbmc-regression/float1.c [2023-11-19 02:47:19,538 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/data/bfceb0a89/06f927e9d92e480d840a02bb9f117e35/FLAGac0d8e098 [2023-11-19 02:47:19,552 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/data/bfceb0a89/06f927e9d92e480d840a02bb9f117e35 [2023-11-19 02:47:19,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:47:19,557 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:47:19,558 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:47:19,558 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:47:19,563 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:47:19,564 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:47:19" (1/1) ... [2023-11-19 02:47:19,565 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5211b515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:19, skipping insertion in model container [2023-11-19 02:47:19,565 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:47:19" (1/1) ... [2023-11-19 02:47:19,583 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:47:19,758 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_15166384-6d23-46c2-ace0-cf98a5e28d41/sv-benchmarks/c/floats-cbmc-regression/float1.c[371,384] [2023-11-19 02:47:19,763 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_15166384-6d23-46c2-ace0-cf98a5e28d41/sv-benchmarks/c/floats-cbmc-regression/float1.c[525,538] [2023-11-19 02:47:19,764 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:47:19,786 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:47:19,804 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_15166384-6d23-46c2-ace0-cf98a5e28d41/sv-benchmarks/c/floats-cbmc-regression/float1.c[371,384] [2023-11-19 02:47:19,806 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_15166384-6d23-46c2-ace0-cf98a5e28d41/sv-benchmarks/c/floats-cbmc-regression/float1.c[525,538] [2023-11-19 02:47:19,807 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:47:19,831 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:47:19,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:19 WrapperNode [2023-11-19 02:47:19,831 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:47:19,833 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:47:19,833 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:47:19,833 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:47:19,841 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:19" (1/1) ... [2023-11-19 02:47:19,852 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:19" (1/1) ... [2023-11-19 02:47:19,873 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 24 [2023-11-19 02:47:19,873 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:47:19,875 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:47:19,876 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:47:19,877 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:47:19,885 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:19" (1/1) ... [2023-11-19 02:47:19,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:19" (1/1) ... [2023-11-19 02:47:19,905 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:19" (1/1) ... [2023-11-19 02:47:19,906 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:19" (1/1) ... [2023-11-19 02:47:19,912 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:19" (1/1) ... [2023-11-19 02:47:19,915 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:19" (1/1) ... [2023-11-19 02:47:19,923 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:19" (1/1) ... [2023-11-19 02:47:19,925 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:19" (1/1) ... [2023-11-19 02:47:19,927 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:47:19,932 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:47:19,933 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:47:19,933 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:47:19,934 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:47:19" (1/1) ... [2023-11-19 02:47:19,939 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:47:19,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:47:19,966 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:47:19,991 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:47:20,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:47:20,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:47:20,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:47:20,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 02:47:20,104 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:47:20,107 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:47:20,599 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:47:20,619 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:47:20,619 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 02:47:20,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:47:20 BoogieIcfgContainer [2023-11-19 02:47:20,623 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:47:20,624 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:47:20,624 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:47:20,633 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:47:20,634 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:47:20" (1/1) ... [2023-11-19 02:47:20,641 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:47:20,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:47:20,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2023-11-19 02:47:20,701 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2023-11-19 02:47:20,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 02:47:20,703 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:47:20,704 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:47:20,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:47:20,705 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:47:20,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 02:47:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:47:20,910 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:47:21,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:47:21,067 INFO L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 02:47:21,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:47:21,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:47:21,142 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:47:21,149 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-19 02:47:21,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:47:21,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-19 02:47:21,489 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-19 02:47:21,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-19 02:47:21,489 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:47:21,490 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:47:21,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:47:21,497 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:47:21,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-19 02:47:21,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:47:21,788 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:47:22,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:47:22,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 02:47:22,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:47:22,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:47:22,498 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:47:22,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-19 02:47:23,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:47:23,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 6 states and 5 transitions. [2023-11-19 02:47:23,580 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 5 transitions. [2023-11-19 02:47:23,580 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 02:47:23,580 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2023-11-19 02:47:23,595 INFO L751 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2023-11-19 02:47:23,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:47:23 ImpRootNode [2023-11-19 02:47:23,628 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:47:23,631 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:47:23,631 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:47:23,632 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:47:23,632 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:47:20" (3/4) ... [2023-11-19 02:47:23,634 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 02:47:23,648 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-19 02:47:23,648 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 02:47:23,648 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 02:47:23,649 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 02:47:23,751 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 02:47:23,751 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 02:47:23,751 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:47:23,753 INFO L158 Benchmark]: Toolchain (without parser) took 4195.42ms. Allocated memory is still 79.7MB. Free memory was 55.3MB in the beginning and 56.7MB in the end (delta: -1.4MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2023-11-19 02:47:23,754 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 65.0MB. Free memory is still 41.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:47:23,755 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.66ms. Allocated memory is still 79.7MB. Free memory was 55.1MB in the beginning and 44.7MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:47:23,758 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.57ms. Allocated memory is still 79.7MB. Free memory was 44.4MB in the beginning and 43.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:47:23,759 INFO L158 Benchmark]: Boogie Preprocessor took 56.41ms. Allocated memory is still 79.7MB. Free memory was 43.1MB in the beginning and 41.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:47:23,760 INFO L158 Benchmark]: RCFGBuilder took 691.04ms. Allocated memory is still 79.7MB. Free memory was 41.9MB in the beginning and 53.2MB in the end (delta: -11.3MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2023-11-19 02:47:23,761 INFO L158 Benchmark]: CodeCheck took 3003.84ms. Allocated memory is still 79.7MB. Free memory was 53.2MB in the beginning and 32.6MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 02:47:23,762 INFO L158 Benchmark]: Witness Printer took 120.49ms. Allocated memory is still 79.7MB. Free memory was 32.6MB in the beginning and 56.7MB in the end (delta: -24.1MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2023-11-19 02:47:23,772 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, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 1.4s 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, 0.2s 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, 6 NumberOfNonLiveVariables, 37 ConjunctsInSsa, 8 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 0.32ms. Allocated memory is still 65.0MB. Free memory is still 41.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.66ms. Allocated memory is still 79.7MB. Free memory was 55.1MB in the beginning and 44.7MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.57ms. Allocated memory is still 79.7MB. Free memory was 44.4MB in the beginning and 43.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.41ms. Allocated memory is still 79.7MB. Free memory was 43.1MB in the beginning and 41.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 691.04ms. Allocated memory is still 79.7MB. Free memory was 41.9MB in the beginning and 53.2MB in the end (delta: -11.3MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. * CodeCheck took 3003.84ms. Allocated memory is still 79.7MB. Free memory was 53.2MB in the beginning and 32.6MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 120.49ms. Allocated memory is still 79.7MB. Free memory was 32.6MB in the beginning and 56.7MB in the end (delta: -24.1MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 02:47:23,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_15166384-6d23-46c2-ace0-cf98a5e28d41/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