./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0480.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_49290ee1-ba76-4645-8335-5e8dad4dca16/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/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_49290ee1-ba76-4645-8335-5e8dad4dca16/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0480.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/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_49290ee1-ba76-4645-8335-5e8dad4dca16/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 f90b1d640a2990a6a85e9cd8b829ad481f01a2281537af5797be61836c0e0f27 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:10:08,278 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:10:08,390 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 22:10:08,401 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:10:08,402 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:10:08,443 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:10:08,445 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:10:08,446 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:10:08,447 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:10:08,452 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:10:08,453 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:10:08,453 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:10:08,453 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:10:08,455 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:10:08,469 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:10:08,469 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:10:08,470 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:10:08,470 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:10:08,471 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:10:08,471 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:10:08,472 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:10:08,472 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:10:08,473 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:10:08,474 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:10:08,474 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:10:08,475 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:10:08,475 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:10:08,476 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:10:08,476 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:10:08,477 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:10:08,478 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:10:08,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:10:08,479 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:10:08,479 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_49290ee1-ba76-4645-8335-5e8dad4dca16/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f90b1d640a2990a6a85e9cd8b829ad481f01a2281537af5797be61836c0e0f27 [2023-11-24 22:10:08,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:10:08,820 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:10:08,823 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:10:08,824 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:10:08,825 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:10:08,826 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/float-newlib/double_req_bl_0480.c [2023-11-24 22:10:11,933 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:10:12,210 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:10:12,229 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/sv-benchmarks/c/float-newlib/double_req_bl_0480.c [2023-11-24 22:10:12,243 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/bin/ukojak-verify-afCqCEvfdi/data/214ac9308/e1b0774d3b694bb79abed7d1ddfbfa10/FLAG1f357f058 [2023-11-24 22:10:12,260 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/bin/ukojak-verify-afCqCEvfdi/data/214ac9308/e1b0774d3b694bb79abed7d1ddfbfa10 [2023-11-24 22:10:12,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:10:12,270 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:10:12,277 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:10:12,277 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:10:12,282 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:10:12,283 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:10:12" (1/1) ... [2023-11-24 22:10:12,285 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e4e225e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:12, skipping insertion in model container [2023-11-24 22:10:12,285 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:10:12" (1/1) ... [2023-11-24 22:10:12,334 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:10:12,616 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_49290ee1-ba76-4645-8335-5e8dad4dca16/sv-benchmarks/c/float-newlib/double_req_bl_0480.c[5882,5895] [2023-11-24 22:10:12,620 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:10:12,631 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:10:12,689 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_49290ee1-ba76-4645-8335-5e8dad4dca16/sv-benchmarks/c/float-newlib/double_req_bl_0480.c[5882,5895] [2023-11-24 22:10:12,690 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:10:12,708 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:10:12,708 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:12 WrapperNode [2023-11-24 22:10:12,709 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:10:12,710 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:10:12,710 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:10:12,710 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:10:12,718 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:12" (1/1) ... [2023-11-24 22:10:12,741 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:12" (1/1) ... [2023-11-24 22:10:12,773 INFO L138 Inliner]: procedures = 17, calls = 38, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 162 [2023-11-24 22:10:12,774 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:10:12,775 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:10:12,775 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:10:12,775 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:10:12,785 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:12" (1/1) ... [2023-11-24 22:10:12,786 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:12" (1/1) ... [2023-11-24 22:10:12,791 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:12" (1/1) ... [2023-11-24 22:10:12,792 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:12" (1/1) ... [2023-11-24 22:10:12,808 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:12" (1/1) ... [2023-11-24 22:10:12,817 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:12" (1/1) ... [2023-11-24 22:10:12,821 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:12" (1/1) ... [2023-11-24 22:10:12,824 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:12" (1/1) ... [2023-11-24 22:10:12,831 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:10:12,832 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:10:12,832 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:10:12,833 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:10:12,833 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:12" (1/1) ... [2023-11-24 22:10:12,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:10:12,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:10:12,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:10:12,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:10:12,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:10:12,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:10:12,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:10:12,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-24 22:10:12,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 22:10:12,945 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2023-11-24 22:10:12,946 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2023-11-24 22:10:12,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-24 22:10:12,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:10:12,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:10:12,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 22:10:12,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:10:13,101 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:10:13,104 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:10:13,907 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:10:14,500 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:10:14,500 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-24 22:10:14,502 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:10:14 BoogieIcfgContainer [2023-11-24 22:10:14,502 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:10:14,504 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:10:14,505 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:10:14,515 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:10:14,516 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:10:14" (1/1) ... [2023-11-24 22:10:14,526 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:10:14,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:10:14,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 49 states and 76 transitions. [2023-11-24 22:10:14,600 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 76 transitions. [2023-11-24 22:10:14,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 22:10:14,603 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:10:14,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:10:14,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:10:14,803 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 22:10:14,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:10:14,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 49 states and 73 transitions. [2023-11-24 22:10:14,844 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 73 transitions. [2023-11-24 22:10:14,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-24 22:10:14,846 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:10:14,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:10:14,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:10:14,922 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:10:14,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:10:15,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:10:15,043 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:10:15,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:10:15,116 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-24 22:10:15,154 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short35 could not be translated [2023-11-24 22:10:15,160 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:10:15 ImpRootNode [2023-11-24 22:10:15,160 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:10:15,161 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:10:15,161 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:10:15,161 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:10:15,161 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:10:14" (3/4) ... [2023-11-24 22:10:15,164 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 22:10:15,165 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:10:15,166 INFO L158 Benchmark]: Toolchain (without parser) took 2895.31ms. Allocated memory was 132.1MB in the beginning and 167.8MB in the end (delta: 35.7MB). Free memory was 85.1MB in the beginning and 102.7MB in the end (delta: -17.6MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2023-11-24 22:10:15,166 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 132.1MB. Free memory is still 101.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:10:15,167 INFO L158 Benchmark]: CACSL2BoogieTranslator took 432.42ms. Allocated memory is still 132.1MB. Free memory was 84.7MB in the beginning and 69.5MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-24 22:10:15,168 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.31ms. Allocated memory is still 132.1MB. Free memory was 69.5MB in the beginning and 67.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:10:15,168 INFO L158 Benchmark]: Boogie Preprocessor took 56.66ms. Allocated memory is still 132.1MB. Free memory was 67.1MB in the beginning and 64.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:10:15,169 INFO L158 Benchmark]: RCFGBuilder took 1670.18ms. Allocated memory was 132.1MB in the beginning and 167.8MB in the end (delta: 35.7MB). Free memory was 64.5MB in the beginning and 126.8MB in the end (delta: -62.3MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. [2023-11-24 22:10:15,170 INFO L158 Benchmark]: CodeCheck took 656.64ms. Allocated memory is still 167.8MB. Free memory was 126.8MB in the beginning and 102.7MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-24 22:10:15,170 INFO L158 Benchmark]: Witness Printer took 4.22ms. Allocated memory is still 167.8MB. Free memory is still 102.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:10:15,173 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, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 14 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, 14 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 64 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, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 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: 239]: 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 someBinaryDOUBLEComparisonOperation at line 238, overapproximation of someUnaryDOUBLEoperation at line 147, overapproximation of someBinaryArithmeticDOUBLEoperation at line 183. Possible FailurePath: [L30] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L142-L155] static const double one_acos = 1.00000000000000000000e+00, pi = 3.14159265358979311600e+00, pio2_hi_acos = 1.57079632679489655800e+00, pio2_lo_acos = 6.12323399573676603587e-17, pS0_acos = 1.66666666666666657415e-01, pS1_acos = -3.25565818622400915405e-01, pS2_acos = 2.01212532134862925881e-01, pS3_acos = -4.00555345006794114027e-02, pS4_acos = 7.91534994289814532176e-04, pS5_acos = 3.47933107596021167570e-05, qS1_acos = -2.40339491173441421878e+00, qS2_acos = 2.02094576023350569471e+00, qS3_acos = -6.88283971605453293030e-01, qS4_acos = 7.70381505559019352791e-02; [L234] double x = 1.0; [L235] CALL, EXPR __ieee754_acos(x) [L158] double z, p, q, r, w, s, c, df; [L159] __int32_t hx, ix; VAL [\old(x)=1, one_acos=1, one_sqrt=1, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1] [L161] ieee_double_shape_type gh_u; [L162] EXPR gh_u.value = (x) [L163] EXPR gh_u.parts.msw [L163] EXPR (hx) = gh_u.parts.msw [L160-L164] { ieee_double_shape_type gh_u; gh_u.value = (x); (hx) = gh_u.parts.msw; } VAL [\old(x)=1, hx=0, one_acos=1, one_sqrt=1, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1] [L165] ix = hx & 0x7fffffff VAL [\old(x)=1, hx=0, ix=0, one_acos=1, one_sqrt=1, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1] [L166] COND FALSE !(ix >= 0x3ff00000) VAL [\old(x)=1, hx=0, ix=0, one_acos=1, one_sqrt=1, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1] [L181] COND TRUE ix < 0x3fe00000 [L182] COND TRUE ix <= 0x3c600000 [L183] return pio2_hi_acos + pio2_lo_acos; VAL [\old(x)=1, hx=0, ix=0, one_acos=1, one_sqrt=1, p=2, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, q=4, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, r=3, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1, z=5] [L235] RET, EXPR __ieee754_acos(x) [L235] double res = __ieee754_acos(x); [L238] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [one_acos=1, one_sqrt=1, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, res=6, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1] [L238] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L239] reach_error() VAL [one_acos=1, one_sqrt=1, pS0_acos=33333333333333331483/200000000000000000000, pS2_acos=201212532134862925881/1000000000000000000000, pS4_acos=49470937143113408261/62500000000000000000000, pS5_acos=34793310759602116757/1000000000000000000000000, pi=612323399573676603587/10000000000000000000000000000000000000, pi=785398163397448279/250000000000000000, pi=785398163397448279/500000000000000000, qS2_acos=202094576023350569471/100000000000000000000, qS4_acos=770381505559019352791/10000000000000000000000, res=6, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 132.1MB. Free memory is still 101.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 432.42ms. Allocated memory is still 132.1MB. Free memory was 84.7MB in the beginning and 69.5MB in the end (delta: 15.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.31ms. Allocated memory is still 132.1MB. Free memory was 69.5MB in the beginning and 67.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.66ms. Allocated memory is still 132.1MB. Free memory was 67.1MB in the beginning and 64.5MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1670.18ms. Allocated memory was 132.1MB in the beginning and 167.8MB in the end (delta: 35.7MB). Free memory was 64.5MB in the beginning and 126.8MB in the end (delta: -62.3MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. * CodeCheck took 656.64ms. Allocated memory is still 167.8MB. Free memory was 126.8MB in the beginning and 102.7MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.22ms. Allocated memory is still 167.8MB. Free memory is still 102.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short35 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 22:10:15,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/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_49290ee1-ba76-4645-8335-5e8dad4dca16/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/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_49290ee1-ba76-4645-8335-5e8dad4dca16/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0480.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/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_49290ee1-ba76-4645-8335-5e8dad4dca16/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 f90b1d640a2990a6a85e9cd8b829ad481f01a2281537af5797be61836c0e0f27 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:10:17,955 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:10:18,098 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-24 22:10:18,154 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:10:18,155 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:10:18,156 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:10:18,157 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:10:18,158 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:10:18,159 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:10:18,164 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:10:18,165 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:10:18,165 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:10:18,166 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:10:18,167 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:10:18,168 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:10:18,168 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:10:18,169 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 22:10:18,169 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 22:10:18,170 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 22:10:18,171 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:10:18,171 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:10:18,172 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:10:18,172 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:10:18,173 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:10:18,173 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:10:18,174 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:10:18,174 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 22:10:18,174 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:10:18,175 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:10:18,175 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:10:18,177 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:10:18,177 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:10:18,177 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 22:10:18,178 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:10:18,178 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:10:18,178 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 22:10:18,179 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 22:10:18,179 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_49290ee1-ba76-4645-8335-5e8dad4dca16/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f90b1d640a2990a6a85e9cd8b829ad481f01a2281537af5797be61836c0e0f27 [2023-11-24 22:10:18,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:10:18,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:10:18,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:10:18,664 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:10:18,665 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:10:18,666 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/float-newlib/double_req_bl_0480.c [2023-11-24 22:10:22,031 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:10:22,357 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:10:22,373 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/sv-benchmarks/c/float-newlib/double_req_bl_0480.c [2023-11-24 22:10:22,389 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/bin/ukojak-verify-afCqCEvfdi/data/891c3193d/867504f16922479e997dd2ea3fe4ba74/FLAG90647ba3f [2023-11-24 22:10:22,409 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/bin/ukojak-verify-afCqCEvfdi/data/891c3193d/867504f16922479e997dd2ea3fe4ba74 [2023-11-24 22:10:22,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:10:22,416 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:10:22,420 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:10:22,421 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:10:22,426 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:10:22,426 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:10:22" (1/1) ... [2023-11-24 22:10:22,428 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@104e4758 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:22, skipping insertion in model container [2023-11-24 22:10:22,428 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:10:22" (1/1) ... [2023-11-24 22:10:22,478 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:10:22,746 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_49290ee1-ba76-4645-8335-5e8dad4dca16/sv-benchmarks/c/float-newlib/double_req_bl_0480.c[5882,5895] [2023-11-24 22:10:22,750 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:10:22,781 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:10:22,831 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_49290ee1-ba76-4645-8335-5e8dad4dca16/sv-benchmarks/c/float-newlib/double_req_bl_0480.c[5882,5895] [2023-11-24 22:10:22,832 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:10:22,852 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:10:22,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:22 WrapperNode [2023-11-24 22:10:22,852 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:10:22,853 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:10:22,853 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:10:22,854 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:10:22,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:22" (1/1) ... [2023-11-24 22:10:22,877 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:22" (1/1) ... [2023-11-24 22:10:22,908 INFO L138 Inliner]: procedures = 20, calls = 38, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 153 [2023-11-24 22:10:22,908 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:10:22,909 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:10:22,909 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:10:22,909 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:10:22,918 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:22" (1/1) ... [2023-11-24 22:10:22,918 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:22" (1/1) ... [2023-11-24 22:10:22,925 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:22" (1/1) ... [2023-11-24 22:10:22,926 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:22" (1/1) ... [2023-11-24 22:10:22,948 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:22" (1/1) ... [2023-11-24 22:10:22,984 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:22" (1/1) ... [2023-11-24 22:10:23,001 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:22" (1/1) ... [2023-11-24 22:10:23,004 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:22" (1/1) ... [2023-11-24 22:10:23,010 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:10:23,011 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:10:23,011 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:10:23,011 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:10:23,012 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:22" (1/1) ... [2023-11-24 22:10:23,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:10:23,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:10:23,081 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:10:23,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:10:23,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:10:23,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2023-11-24 22:10:23,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2023-11-24 22:10:23,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 22:10:23,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:10:23,122 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrt [2023-11-24 22:10:23,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrt [2023-11-24 22:10:23,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 22:10:23,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:10:23,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:10:23,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-24 22:10:23,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:10:23,283 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:10:23,285 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:11:15,640 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:11:15,879 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:11:15,879 INFO L309 CfgBuilder]: Removed 16 assume(true) statements. [2023-11-24 22:11:15,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:11:15 BoogieIcfgContainer [2023-11-24 22:11:15,881 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:11:15,882 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:11:15,882 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:11:15,892 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:11:15,892 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:11:15" (1/1) ... [2023-11-24 22:11:15,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:11:15,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:15,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 46 states and 72 transitions. [2023-11-24 22:11:15,972 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 72 transitions. [2023-11-24 22:11:15,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-24 22:11:15,975 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:15,975 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:15,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:15,979 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:16,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 22:11:17,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:17,149 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:17,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 22:11:17,203 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:17,222 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 22:11:17,229 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:11:17,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_49290ee1-ba76-4645-8335-5e8dad4dca16/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0