./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1270c.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/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_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1270c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/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_d9aa4781-50e7-45ff-9976-99dcb9a7097e/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 575af8feb7a46b015d4374541233953a0103acadad1e9c8ea0c454cb1ee3d7f4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:19:11,615 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:19:11,744 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 22:19:11,751 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:19:11,752 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:19:11,790 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:19:11,791 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:19:11,792 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:19:11,794 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:19:11,800 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:19:11,802 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:19:11,803 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:19:11,803 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:19:11,806 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:19:11,806 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:19:11,807 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:19:11,807 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:19:11,808 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:19:11,809 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:19:11,809 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:19:11,810 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:19:11,811 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:19:11,812 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:19:11,814 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:19:11,815 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:19:11,815 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:19:11,816 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:19:11,816 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:19:11,817 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:19:11,818 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:19:11,819 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:19:11,820 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:19:11,822 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:19:11,822 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_d9aa4781-50e7-45ff-9976-99dcb9a7097e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 575af8feb7a46b015d4374541233953a0103acadad1e9c8ea0c454cb1ee3d7f4 [2023-11-24 22:19:12,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:19:12,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:19:12,168 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:19:12,170 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:19:12,171 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:19:12,174 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/float-newlib/float_req_bl_1270c.c [2023-11-24 22:19:16,041 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:19:16,344 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:19:16,345 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/sv-benchmarks/c/float-newlib/float_req_bl_1270c.c [2023-11-24 22:19:16,357 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi/data/42cbf539c/b5618948e7d0422e86fea5ca531bd5c7/FLAGca9258a2d [2023-11-24 22:19:16,375 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi/data/42cbf539c/b5618948e7d0422e86fea5ca531bd5c7 [2023-11-24 22:19:16,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:19:16,380 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:19:16,382 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:19:16,383 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:19:16,389 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:19:16,390 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:19:16" (1/1) ... [2023-11-24 22:19:16,392 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48747e74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:16, skipping insertion in model container [2023-11-24 22:19:16,392 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:19:16" (1/1) ... [2023-11-24 22:19:16,430 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:19:16,709 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_d9aa4781-50e7-45ff-9976-99dcb9a7097e/sv-benchmarks/c/float-newlib/float_req_bl_1270c.c[4703,4716] [2023-11-24 22:19:16,714 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:19:16,726 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:19:16,791 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_d9aa4781-50e7-45ff-9976-99dcb9a7097e/sv-benchmarks/c/float-newlib/float_req_bl_1270c.c[4703,4716] [2023-11-24 22:19:16,792 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:19:16,813 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:19:16,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:16 WrapperNode [2023-11-24 22:19:16,814 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:19:16,815 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:19:16,815 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:19:16,816 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:19:16,825 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:16" (1/1) ... [2023-11-24 22:19:16,841 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:16" (1/1) ... [2023-11-24 22:19:16,883 INFO L138 Inliner]: procedures = 18, calls = 75, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 268 [2023-11-24 22:19:16,884 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:19:16,885 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:19:16,885 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:19:16,885 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:19:16,906 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:16" (1/1) ... [2023-11-24 22:19:16,911 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:16" (1/1) ... [2023-11-24 22:19:16,918 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:16" (1/1) ... [2023-11-24 22:19:16,918 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:16" (1/1) ... [2023-11-24 22:19:16,938 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:16" (1/1) ... [2023-11-24 22:19:16,950 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:16" (1/1) ... [2023-11-24 22:19:16,954 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:16" (1/1) ... [2023-11-24 22:19:16,957 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:16" (1/1) ... [2023-11-24 22:19:16,963 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:19:16,965 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:19:16,965 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:19:16,965 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:19:16,966 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:16" (1/1) ... [2023-11-24 22:19:16,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:19:16,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:19:17,018 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:19:17,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:19:17,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:19:17,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:19:17,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:19:17,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-24 22:19:17,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 22:19:17,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-24 22:19:17,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:19:17,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:19:17,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 22:19:17,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:19:17,085 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2023-11-24 22:19:17,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2023-11-24 22:19:17,226 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:19:17,229 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:19:17,955 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:19:18,147 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:19:18,147 INFO L309 CfgBuilder]: Removed 34 assume(true) statements. [2023-11-24 22:19:18,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:19:18 BoogieIcfgContainer [2023-11-24 22:19:18,150 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:19:18,152 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:19:18,152 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:19:18,165 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:19:18,166 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:19:18" (1/1) ... [2023-11-24 22:19:18,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:19:18,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:19:18,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 74 states and 122 transitions. [2023-11-24 22:19:18,277 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 122 transitions. [2023-11-24 22:19:18,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 22:19:18,281 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:19:18,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:19:18,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:19:18,531 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 22:19:18,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:19:18,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 74 states and 111 transitions. [2023-11-24 22:19:18,586 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 111 transitions. [2023-11-24 22:19:18,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-24 22:19:18,590 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:19:18,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:19:18,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:19:18,810 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:19:18,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:19:19,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:19:19,122 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:19:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:19:19,233 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-24 22:19:19,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:19:19 ImpRootNode [2023-11-24 22:19:19,305 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:19:19,306 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:19:19,306 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:19:19,307 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:19:19,308 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:19:18" (3/4) ... [2023-11-24 22:19:19,313 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 22:19:19,314 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:19:19,316 INFO L158 Benchmark]: Toolchain (without parser) took 2934.55ms. Allocated memory was 146.8MB in the beginning and 182.5MB in the end (delta: 35.7MB). Free memory was 100.8MB in the beginning and 101.5MB in the end (delta: -777.5kB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2023-11-24 22:19:19,317 INFO L158 Benchmark]: CDTParser took 1.91ms. Allocated memory is still 146.8MB. Free memory is still 93.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:19:19,318 INFO L158 Benchmark]: CACSL2BoogieTranslator took 431.98ms. Allocated memory is still 146.8MB. Free memory was 100.3MB in the beginning and 86.3MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 22:19:19,318 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.65ms. Allocated memory is still 146.8MB. Free memory was 86.3MB in the beginning and 84.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:19:19,320 INFO L158 Benchmark]: Boogie Preprocessor took 79.19ms. Allocated memory is still 146.8MB. Free memory was 84.0MB in the beginning and 81.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 22:19:19,321 INFO L158 Benchmark]: RCFGBuilder took 1185.93ms. Allocated memory was 146.8MB in the beginning and 182.5MB in the end (delta: 35.7MB). Free memory was 81.4MB in the beginning and 136.3MB in the end (delta: -54.8MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. [2023-11-24 22:19:19,328 INFO L158 Benchmark]: CodeCheck took 1153.92ms. Allocated memory is still 182.5MB. Free memory was 136.3MB in the beginning and 101.5MB in the end (delta: 34.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-24 22:19:19,330 INFO L158 Benchmark]: Witness Printer took 7.96ms. Allocated memory is still 182.5MB. Free memory is still 101.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:19:19,340 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 2 procedures, 74 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 50 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 20 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 96 GetRequests, 96 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, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 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: 237]: 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 someBinaryArithmeticFLOAToperation at line 120. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L231] float x = __VERIFIER_nondet_float(); [L232] float y = 1.0f / 0.0f; [L234] CALL, EXPR __ieee754_hypotf(x, y) [L84] float a = x, b = y, t1, t2, y1, y2, w; [L85] __int32_t j, k, ha, hb; VAL [\old(x)=2, \old(y)=3, a=2, b=3, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2, y=3] [L88] ieee_float_shape_type gf_u; [L89] EXPR gf_u.value = (x) [L90] EXPR gf_u.word [L90] EXPR (ha) = gf_u.word [L87-L91] { ieee_float_shape_type gf_u; gf_u.value = (x); (ha) = gf_u.word; } VAL [\old(x)=2, \old(y)=3, a=2, b=3, ha=13456, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2, y=3] [L92] ha &= 0x7fffffffL VAL [\old(x)=2, \old(y)=3, a=2, b=3, ha=13456, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2, y=3] [L94] ieee_float_shape_type gf_u; [L95] EXPR gf_u.value = (y) [L96] EXPR gf_u.word [L96] EXPR (hb) = gf_u.word [L93-L97] { ieee_float_shape_type gf_u; gf_u.value = (y); (hb) = gf_u.word; } VAL [\old(x)=2, \old(y)=3, a=2, b=3, ha=13456, hb=2147483647, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2, y=3] [L98] hb &= 0x7fffffffL [L99] COND TRUE hb > ha [L100] a = y [L101] b = x [L102] j = ha [L103] ha = hb [L104] hb = j VAL [\old(x)=2, \old(y)=3, a=3, b=2, ha=2147483647, hb=13456, j=13456, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2, y=3] [L110] ieee_float_shape_type sf_u; [L111] EXPR sf_u.word = (ha) [L112] EXPR sf_u.value [L112] EXPR (a) = sf_u.value [L109-L113] { ieee_float_shape_type sf_u; sf_u.word = (ha); (a) = sf_u.value; } VAL [\old(x)=2, \old(y)=3, a=15, b=2, ha=2147483647, hb=13456, j=13456, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2, y=3] [L115] ieee_float_shape_type sf_u; [L116] EXPR sf_u.word = (hb) [L117] EXPR sf_u.value [L117] EXPR (b) = sf_u.value [L114-L118] { ieee_float_shape_type sf_u; sf_u.word = (hb); (b) = sf_u.value; } VAL [\old(x)=2, \old(y)=3, a=15, b=8, ha=2147483647, hb=13456, j=13456, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2, y=3] [L119] COND TRUE (ha - hb) > 0xf000000L [L120] return a + b; VAL [\old(x)=2, \old(y)=3, a=15, b=8, ha=2147483647, hb=13456, j=13456, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2, y=3] [L234] RET, EXPR __ieee754_hypotf(x, y) [L234] float res = __ieee754_hypotf(x, y); [L236] CALL, EXPR isinf_float(res) [L214] __int32_t ix; VAL [\old(x)=6, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6] [L216] ieee_float_shape_type gf_u; [L217] EXPR gf_u.value = (x) [L218] EXPR gf_u.word [L218] EXPR (ix) = gf_u.word [L215-L219] { ieee_float_shape_type gf_u; gf_u.value = (x); (ix) = gf_u.word; } VAL [\old(x)=6, ix=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6] [L220] ix &= 0x7fffffff [L221] return ((ix) == 0x7f800000L); [L236] RET, EXPR isinf_float(res) [L236] COND TRUE !isinf_float(res) [L237] reach_error() VAL [one_sqrt=1, res=6, tiny_sqrt=1/1000000000000000000000000000000, x=2, y=3] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.91ms. Allocated memory is still 146.8MB. Free memory is still 93.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 431.98ms. Allocated memory is still 146.8MB. Free memory was 100.3MB in the beginning and 86.3MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.65ms. Allocated memory is still 146.8MB. Free memory was 86.3MB in the beginning and 84.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.19ms. Allocated memory is still 146.8MB. Free memory was 84.0MB in the beginning and 81.4MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1185.93ms. Allocated memory was 146.8MB in the beginning and 182.5MB in the end (delta: 35.7MB). Free memory was 81.4MB in the beginning and 136.3MB in the end (delta: -54.8MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. * CodeCheck took 1153.92ms. Allocated memory is still 182.5MB. Free memory was 136.3MB in the beginning and 101.5MB in the end (delta: 34.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 7.96ms. Allocated memory is still 182.5MB. Free memory is still 101.5MB. 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 22:19:19,371 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/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_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1270c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/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_d9aa4781-50e7-45ff-9976-99dcb9a7097e/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 575af8feb7a46b015d4374541233953a0103acadad1e9c8ea0c454cb1ee3d7f4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:19:22,744 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:19:22,837 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-24 22:19:22,877 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:19:22,878 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:19:22,879 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:19:22,880 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:19:22,881 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:19:22,882 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:19:22,883 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:19:22,884 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:19:22,885 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:19:22,886 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:19:22,886 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:19:22,887 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:19:22,888 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:19:22,889 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 22:19:22,890 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 22:19:22,891 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 22:19:22,891 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:19:22,892 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:19:22,893 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:19:22,894 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:19:22,895 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:19:22,896 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:19:22,897 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:19:22,897 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 22:19:22,898 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:19:22,899 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:19:22,900 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:19:22,900 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:19:22,901 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:19:22,901 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 22:19:22,902 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:19:22,903 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:19:22,903 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 22:19:22,904 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 22:19:22,904 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_d9aa4781-50e7-45ff-9976-99dcb9a7097e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 575af8feb7a46b015d4374541233953a0103acadad1e9c8ea0c454cb1ee3d7f4 [2023-11-24 22:19:23,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:19:23,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:19:23,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:19:23,521 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:19:23,522 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:19:23,524 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/float-newlib/float_req_bl_1270c.c [2023-11-24 22:19:27,534 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:19:27,903 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:19:27,915 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/sv-benchmarks/c/float-newlib/float_req_bl_1270c.c [2023-11-24 22:19:27,936 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi/data/ddd93ea70/d7d7d187979c46d7b7a92cd09350e1c3/FLAG0b2ba744c [2023-11-24 22:19:27,952 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi/data/ddd93ea70/d7d7d187979c46d7b7a92cd09350e1c3 [2023-11-24 22:19:27,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:19:27,957 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:19:27,959 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:19:27,959 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:19:27,965 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:19:27,966 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:19:27" (1/1) ... [2023-11-24 22:19:27,968 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f99918e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:27, skipping insertion in model container [2023-11-24 22:19:27,968 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:19:27" (1/1) ... [2023-11-24 22:19:28,010 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:19:28,388 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_d9aa4781-50e7-45ff-9976-99dcb9a7097e/sv-benchmarks/c/float-newlib/float_req_bl_1270c.c[4703,4716] [2023-11-24 22:19:28,395 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:19:28,428 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:19:28,545 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_d9aa4781-50e7-45ff-9976-99dcb9a7097e/sv-benchmarks/c/float-newlib/float_req_bl_1270c.c[4703,4716] [2023-11-24 22:19:28,552 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:19:28,577 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:19:28,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:28 WrapperNode [2023-11-24 22:19:28,578 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:19:28,580 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:19:28,580 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:19:28,581 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:19:28,591 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:28" (1/1) ... [2023-11-24 22:19:28,633 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:28" (1/1) ... [2023-11-24 22:19:28,699 INFO L138 Inliner]: procedures = 21, calls = 75, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 268 [2023-11-24 22:19:28,699 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:19:28,701 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:19:28,701 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:19:28,701 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:19:28,714 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:28" (1/1) ... [2023-11-24 22:19:28,715 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:28" (1/1) ... [2023-11-24 22:19:28,736 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:28" (1/1) ... [2023-11-24 22:19:28,750 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:28" (1/1) ... [2023-11-24 22:19:28,786 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:28" (1/1) ... [2023-11-24 22:19:28,795 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:28" (1/1) ... [2023-11-24 22:19:28,818 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:28" (1/1) ... [2023-11-24 22:19:28,822 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:28" (1/1) ... [2023-11-24 22:19:28,828 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:19:28,830 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:19:28,830 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:19:28,830 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:19:28,843 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:19:28" (1/1) ... [2023-11-24 22:19:28,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:19:28,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:19:28,884 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:19:28,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:19:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:19:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 22:19:28,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:19:28,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-24 22:19:28,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 22:19:28,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:19:28,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:19:28,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-24 22:19:28,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-24 22:19:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:19:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2023-11-24 22:19:28,950 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2023-11-24 22:19:29,137 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:19:29,168 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:19:31,341 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:19:31,493 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:19:31,494 INFO L309 CfgBuilder]: Removed 34 assume(true) statements. [2023-11-24 22:19:31,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:19:31 BoogieIcfgContainer [2023-11-24 22:19:31,497 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:19:31,499 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:19:31,500 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:19:31,512 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:19:31,513 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:19:31" (1/1) ... [2023-11-24 22:19:31,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:19:31,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:19:31,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 72 states and 119 transitions. [2023-11-24 22:19:31,629 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 119 transitions. [2023-11-24 22:19:31,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 22:19:31,632 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:19:31,633 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:19:31,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:19:31,636 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:19:31,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 22:19:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:19:31,956 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:19:31,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:19:32,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 22:19:32,008 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:19:32,034 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 22:19:32,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-24 22:19:32,039 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:19:32,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:19:32,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 72 states and 108 transitions. [2023-11-24 22:19:32,117 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 108 transitions. [2023-11-24 22:19:32,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-24 22:19:32,121 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:19:32,121 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:19:32,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:19:32,123 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:19:32,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-24 22:19:32,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:19:32,854 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:19:32,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:19:32,986 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-24 22:19:32,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:19:33,256 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 22:19:34,168 INFO L349 Elim1Store]: treesize reduction 24, result has 56.4 percent of original size [2023-11-24 22:19:34,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 118 treesize of output 104 [2023-11-24 22:19:38,031 INFO L349 Elim1Store]: treesize reduction 24, result has 56.4 percent of original size [2023-11-24 22:19:38,031 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 134 treesize of output 128 [2023-11-24 22:19:41,539 INFO L349 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2023-11-24 22:19:41,540 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 91 treesize of output 67 [2023-11-24 22:19:41,616 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-24 22:19:41,616 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 69 treesize of output 57 [2023-11-24 22:19:43,432 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 22:19:43,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9aa4781-50e7-45ff-9976-99dcb9a7097e/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-24 22:20:03,241 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0]