./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0684a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0684a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash efede14cec67ae8cef21ecac6898298c5edf5936b50c5fa3d4edd06f6b4e1b18 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:15:50,910 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:15:51,050 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 22:15:51,060 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:15:51,060 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:15:51,115 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:15:51,116 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:15:51,116 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:15:51,118 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:15:51,125 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:15:51,125 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:15:51,126 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:15:51,126 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:15:51,128 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:15:51,129 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:15:51,129 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:15:51,130 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:15:51,130 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:15:51,130 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:15:51,131 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:15:51,131 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:15:51,132 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:15:51,133 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:15:51,133 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:15:51,134 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:15:51,134 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:15:51,135 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:15:51,135 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:15:51,136 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:15:51,136 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:15:51,137 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:15:51,138 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:15:51,138 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:15:51,138 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_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efede14cec67ae8cef21ecac6898298c5edf5936b50c5fa3d4edd06f6b4e1b18 [2023-11-24 22:15:51,382 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:15:51,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:15:51,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:15:51,418 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:15:51,418 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:15:51,420 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/float-newlib/float_req_bl_0684a.c [2023-11-24 22:15:54,507 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:15:54,749 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:15:54,750 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/sv-benchmarks/c/float-newlib/float_req_bl_0684a.c [2023-11-24 22:15:54,759 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/data/5b4b3a9fb/6bada8cba5e943afa22f252df2a031bd/FLAG245d78032 [2023-11-24 22:15:54,775 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/data/5b4b3a9fb/6bada8cba5e943afa22f252df2a031bd [2023-11-24 22:15:54,778 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:15:54,780 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:15:54,781 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:15:54,782 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:15:54,787 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:15:54,788 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:15:54" (1/1) ... [2023-11-24 22:15:54,789 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b5a0ca0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:54, skipping insertion in model container [2023-11-24 22:15:54,789 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:15:54" (1/1) ... [2023-11-24 22:15:54,825 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:15:55,138 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_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/sv-benchmarks/c/float-newlib/float_req_bl_0684a.c[5582,5595] [2023-11-24 22:15:55,146 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:15:55,164 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:15:55,241 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/sv-benchmarks/c/float-newlib/float_req_bl_0684a.c[5582,5595] [2023-11-24 22:15:55,248 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:15:55,278 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:15:55,278 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:55 WrapperNode [2023-11-24 22:15:55,279 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:15:55,280 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:15:55,280 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:15:55,281 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:15:55,288 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:55" (1/1) ... [2023-11-24 22:15:55,310 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:55" (1/1) ... [2023-11-24 22:15:55,356 INFO L138 Inliner]: procedures = 20, calls = 84, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 257 [2023-11-24 22:15:55,360 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:15:55,361 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:15:55,362 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:15:55,362 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:15:55,372 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:55" (1/1) ... [2023-11-24 22:15:55,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:55" (1/1) ... [2023-11-24 22:15:55,386 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:55" (1/1) ... [2023-11-24 22:15:55,388 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:55" (1/1) ... [2023-11-24 22:15:55,419 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:55" (1/1) ... [2023-11-24 22:15:55,432 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:55" (1/1) ... [2023-11-24 22:15:55,435 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:55" (1/1) ... [2023-11-24 22:15:55,437 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:55" (1/1) ... [2023-11-24 22:15:55,442 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:15:55,443 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:15:55,443 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:15:55,444 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:15:55,445 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:15:55" (1/1) ... [2023-11-24 22:15:55,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:15:55,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:15:55,496 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:15:55,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:15:55,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:15:55,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:15:55,529 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:15:55,529 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-24 22:15:55,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 22:15:55,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-24 22:15:55,530 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2023-11-24 22:15:55,530 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2023-11-24 22:15:55,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:15:55,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:15:55,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 22:15:55,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-24 22:15:55,531 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2023-11-24 22:15:55,531 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2023-11-24 22:15:55,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:15:55,632 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:15:55,634 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:15:56,220 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:15:56,355 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:15:56,355 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-24 22:15:56,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:15:56 BoogieIcfgContainer [2023-11-24 22:15:56,357 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:15:56,358 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:15:56,359 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:15:56,372 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:15:56,372 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:15:56" (1/1) ... [2023-11-24 22:15:56,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:15:56,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:15:56,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 72 states and 117 transitions. [2023-11-24 22:15:56,456 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 117 transitions. [2023-11-24 22:15:56,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 22:15:56,458 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:15:56,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:15:56,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:15:56,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:15:56,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:15:56,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 72 states and 110 transitions. [2023-11-24 22:15:56,753 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 110 transitions. [2023-11-24 22:15:56,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 22:15:56,753 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:15:56,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:15:56,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:15:56,942 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:15:57,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:15:57,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:15:57,227 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:15:57,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:15:57,309 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-24 22:15:57,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:15:57 ImpRootNode [2023-11-24 22:15:57,348 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:15:57,348 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:15:57,349 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:15:57,349 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:15:57,349 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:15:56" (3/4) ... [2023-11-24 22:15:57,352 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 22:15:57,353 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:15:57,354 INFO L158 Benchmark]: Toolchain (without parser) took 2573.79ms. Allocated memory is still 148.9MB. Free memory was 119.7MB in the beginning and 110.7MB in the end (delta: 9.0MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2023-11-24 22:15:57,354 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 93.1MB in the end (delta: 71.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:15:57,355 INFO L158 Benchmark]: CACSL2BoogieTranslator took 497.67ms. Allocated memory is still 148.9MB. Free memory was 119.7MB in the beginning and 104.7MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-24 22:15:57,356 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.80ms. Allocated memory is still 148.9MB. Free memory was 104.7MB in the beginning and 102.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:15:57,356 INFO L158 Benchmark]: Boogie Preprocessor took 81.06ms. Allocated memory is still 148.9MB. Free memory was 102.1MB in the beginning and 99.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:15:57,357 INFO L158 Benchmark]: RCFGBuilder took 914.42ms. Allocated memory is still 148.9MB. Free memory was 99.8MB in the beginning and 94.8MB in the end (delta: 5.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-24 22:15:57,358 INFO L158 Benchmark]: CodeCheck took 989.44ms. Allocated memory is still 148.9MB. Free memory was 94.8MB in the beginning and 111.3MB in the end (delta: -16.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:15:57,358 INFO L158 Benchmark]: Witness Printer took 4.46ms. Allocated memory is still 148.9MB. Free memory was 111.3MB in the beginning and 110.7MB in the end (delta: 641.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:15:57,362 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 3 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 54 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 32 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 111 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 - UnprovableResult [Line: 246]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 245, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of someBinaryArithmeticFLOAToperation at line 137. Possible FailurePath: [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L117-L118] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; [L236] float x = __VERIFIER_nondet_float(); [L237] float y = 1.0f / 0.0f; [L240] CALL isfinite_float(x) [L219] __int32_t ix; VAL [\old(x)=6, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6, zero_atan2=0] [L221] ieee_float_shape_type gf_u; [L222] EXPR gf_u.value = (x) [L223] EXPR gf_u.word [L223] EXPR (ix) = gf_u.word [L220-L224] { ieee_float_shape_type gf_u; gf_u.value = (x); (ix) = gf_u.word; } VAL [\old(x)=6, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, ix=2139095039, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6, zero_atan2=0] [L225] ix &= 0x7fffffff [L226] return (((ix) < 0x7f800000L)); [L240] RET isfinite_float(x) [L240] COND TRUE isfinite_float(x) [L242] CALL, EXPR __ieee754_atan2f(y, x) [L121] float z; [L122] __int32_t k, m, hx, hy, ix, iy; VAL [\old(x)=6, \old(y)=5, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6, y=5, zero_atan2=0] [L125] ieee_float_shape_type gf_u; [L126] EXPR gf_u.value = (x) [L127] EXPR gf_u.word [L127] EXPR (hx) = gf_u.word [L124-L128] { ieee_float_shape_type gf_u; gf_u.value = (x); (hx) = gf_u.word; } VAL [\old(x)=6, \old(y)=5, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6, y=5, zero_atan2=0] [L129] ix = hx & 0x7fffffff VAL [\old(x)=6, \old(y)=5, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=2139095041, ix=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6, y=5, zero_atan2=0] [L131] ieee_float_shape_type gf_u; [L132] EXPR gf_u.value = (y) [L133] EXPR gf_u.word [L133] EXPR (hy) = gf_u.word [L130-L134] { ieee_float_shape_type gf_u; gf_u.value = (y); (hy) = gf_u.word; } VAL [\old(x)=6, \old(y)=5, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=2139095041, hy=2139095039, ix=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6, y=5, zero_atan2=0] [L135] iy = hy & 0x7fffffff VAL [\old(x)=6, \old(y)=5, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=2139095041, hy=2139095039, ix=2139095041, iy=2139095039, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6, y=5, zero_atan2=0] [L136] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L137] return x + y; VAL [\old(x)=6, \old(y)=5, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=2139095041, hy=2139095039, ix=2139095041, iy=2139095039, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=6, y=5, zero_atan2=0] [L242] RET, EXPR __ieee754_atan2f(y, x) [L242] float res = __ieee754_atan2f(y, x); [L245] COND TRUE res != pi_o_2 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=14, tiny_atan2=1/1000000000000000000000000000000, x=6, y=5, zero_atan2=0] [L246] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=14, tiny_atan2=1/1000000000000000000000000000000, x=6, y=5, zero_atan2=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 93.1MB in the end (delta: 71.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 497.67ms. Allocated memory is still 148.9MB. Free memory was 119.7MB in the beginning and 104.7MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.80ms. Allocated memory is still 148.9MB. Free memory was 104.7MB in the beginning and 102.1MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.06ms. Allocated memory is still 148.9MB. Free memory was 102.1MB in the beginning and 99.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 914.42ms. Allocated memory is still 148.9MB. Free memory was 99.8MB in the beginning and 94.8MB in the end (delta: 5.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 989.44ms. Allocated memory is still 148.9MB. Free memory was 94.8MB in the beginning and 111.3MB in the end (delta: -16.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.46ms. Allocated memory is still 148.9MB. Free memory was 111.3MB in the beginning and 110.7MB in the end (delta: 641.3kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 22:15:57,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0684a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash efede14cec67ae8cef21ecac6898298c5edf5936b50c5fa3d4edd06f6b4e1b18 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:16:00,013 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:16:00,104 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-24 22:16:00,160 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:16:00,161 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:16:00,162 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:16:00,163 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:16:00,163 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:16:00,165 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:16:00,169 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:16:00,170 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:16:00,170 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:16:00,171 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:16:00,172 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:16:00,173 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:16:00,173 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:16:00,174 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 22:16:00,174 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 22:16:00,175 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 22:16:00,176 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:16:00,176 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:16:00,177 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:16:00,177 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:16:00,178 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:16:00,178 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:16:00,179 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:16:00,179 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 22:16:00,180 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:16:00,180 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:16:00,181 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:16:00,182 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:16:00,182 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:16:00,183 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 22:16:00,183 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:16:00,184 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:16:00,184 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 22:16:00,184 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 22:16:00,185 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_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> efede14cec67ae8cef21ecac6898298c5edf5936b50c5fa3d4edd06f6b4e1b18 [2023-11-24 22:16:00,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:16:00,648 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:16:00,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:16:00,652 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:16:00,653 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:16:00,655 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/float-newlib/float_req_bl_0684a.c [2023-11-24 22:16:03,703 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:16:04,045 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:16:04,052 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/sv-benchmarks/c/float-newlib/float_req_bl_0684a.c [2023-11-24 22:16:04,068 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/data/18a9e019a/125ce7f2a0d648808a49c1f4c5d4b82b/FLAG14841d477 [2023-11-24 22:16:04,088 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/data/18a9e019a/125ce7f2a0d648808a49c1f4c5d4b82b [2023-11-24 22:16:04,094 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:16:04,095 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:16:04,101 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:16:04,102 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:16:04,107 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:16:04,108 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:16:04" (1/1) ... [2023-11-24 22:16:04,109 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e54b597 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:04, skipping insertion in model container [2023-11-24 22:16:04,109 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:16:04" (1/1) ... [2023-11-24 22:16:04,156 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:16:04,456 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_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/sv-benchmarks/c/float-newlib/float_req_bl_0684a.c[5582,5595] [2023-11-24 22:16:04,472 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:16:04,498 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:16:04,560 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_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/sv-benchmarks/c/float-newlib/float_req_bl_0684a.c[5582,5595] [2023-11-24 22:16:04,561 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:16:04,583 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:16:04,584 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:04 WrapperNode [2023-11-24 22:16:04,584 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:16:04,585 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:16:04,585 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:16:04,585 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:16:04,593 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:04" (1/1) ... [2023-11-24 22:16:04,610 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:04" (1/1) ... [2023-11-24 22:16:04,658 INFO L138 Inliner]: procedures = 23, calls = 84, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 237 [2023-11-24 22:16:04,658 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:16:04,659 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:16:04,659 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:16:04,659 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:16:04,669 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:04" (1/1) ... [2023-11-24 22:16:04,670 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:04" (1/1) ... [2023-11-24 22:16:04,680 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:04" (1/1) ... [2023-11-24 22:16:04,681 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:04" (1/1) ... [2023-11-24 22:16:04,731 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:04" (1/1) ... [2023-11-24 22:16:04,737 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:04" (1/1) ... [2023-11-24 22:16:04,741 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:04" (1/1) ... [2023-11-24 22:16:04,744 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:04" (1/1) ... [2023-11-24 22:16:04,766 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:16:04,766 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:16:04,767 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:16:04,767 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:16:04,768 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:16:04" (1/1) ... [2023-11-24 22:16:04,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:16:04,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:16:04,828 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:16:04,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:16:04,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:16:04,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2023-11-24 22:16:04,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 22:16:04,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:16:04,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-24 22:16:04,878 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2023-11-24 22:16:04,878 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2023-11-24 22:16:04,878 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 22:16:04,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:16:04,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:16:04,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-24 22:16:04,879 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2023-11-24 22:16:04,879 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2023-11-24 22:16:04,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-24 22:16:04,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:16:04,995 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:16:04,998 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:16:35,438 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:16:35,588 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:16:35,588 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-24 22:16:35,590 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:16:35 BoogieIcfgContainer [2023-11-24 22:16:35,590 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:16:35,591 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:16:35,592 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:16:35,604 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:16:35,605 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:16:35" (1/1) ... [2023-11-24 22:16:35,615 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:16:35,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:35,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 72 states and 117 transitions. [2023-11-24 22:16:35,699 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 117 transitions. [2023-11-24 22:16:35,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-24 22:16:35,702 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:35,703 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:16:35,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:16:35,707 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:16:35,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 22:16:36,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:36,893 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:16:37,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:37,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 22:16:37,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:16:37,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:16:37,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-24 22:16:37,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:16:37,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 72 states and 110 transitions. [2023-11-24 22:16:37,879 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 110 transitions. [2023-11-24 22:16:37,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 22:16:37,879 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:16:37,880 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:16:37,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:16:37,897 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:16:37,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-24 22:16:42,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:42,541 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:16:42,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:16:42,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-24 22:16:42,673 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:16:42,977 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-24 22:16:44,277 INFO L349 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2023-11-24 22:16:44,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 40 [2023-11-24 22:16:45,249 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:16:45,251 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2023-11-24 22:16:45,288 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-11-24 22:16:45,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 26 [2023-11-24 22:16:46,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:16:46,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b26df44-bd6f-4d9c-859e-ef59c7efdaa6/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0