./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1012a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1012a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d5bcd8424024d71373d5028b594bdff9bfc267f48b2d86922f4388a4f67cbbe0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:36:03,402 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:36:03,471 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 20:36:03,477 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:36:03,478 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:36:03,506 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:36:03,507 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:36:03,508 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:36:03,509 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:36:03,509 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:36:03,510 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:36:03,510 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:36:03,511 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:36:03,512 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:36:03,512 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:36:03,513 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:36:03,513 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:36:03,514 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:36:03,514 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:36:03,515 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:36:03,515 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:36:03,516 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:36:03,517 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:36:03,520 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:36:03,520 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:36:03,521 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:36:03,521 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:36:03,521 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:36:03,522 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:36:03,522 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:36:03,523 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:36:03,523 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:36:03,523 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:36:03,523 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:36:03,524 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:36:03,524 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:36:03,524 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:36:03,524 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:36:03,525 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:36:03,525 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:36:03,525 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:36:03,528 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:36:03,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:36:03,528 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:36:03,529 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:36:03,529 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:36:03,529 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:36:03,530 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5bcd8424024d71373d5028b594bdff9bfc267f48b2d86922f4388a4f67cbbe0 [2023-11-23 20:36:03,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:36:03,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:36:03,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:36:03,917 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:36:03,918 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:36:03,919 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/float-newlib/float_req_bl_1012a.c [2023-11-23 20:36:07,181 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:36:07,373 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:36:07,374 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/sv-benchmarks/c/float-newlib/float_req_bl_1012a.c [2023-11-23 20:36:07,382 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/data/d4ba58e65/a340c622b90243c9acfef9c848a99b7a/FLAG19b64d1da [2023-11-23 20:36:07,397 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/data/d4ba58e65/a340c622b90243c9acfef9c848a99b7a [2023-11-23 20:36:07,400 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:36:07,402 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:36:07,403 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:36:07,403 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:36:07,409 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:36:07,410 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:36:07" (1/1) ... [2023-11-23 20:36:07,411 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bcc1d79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:07, skipping insertion in model container [2023-11-23 20:36:07,411 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:36:07" (1/1) ... [2023-11-23 20:36:07,432 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:36:07,587 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_5c7e43e3-3d73-4515-957b-60b323f398be/sv-benchmarks/c/float-newlib/float_req_bl_1012a.c[1156,1169] [2023-11-23 20:36:07,590 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:36:07,600 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:36:07,618 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_5c7e43e3-3d73-4515-957b-60b323f398be/sv-benchmarks/c/float-newlib/float_req_bl_1012a.c[1156,1169] [2023-11-23 20:36:07,618 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:36:07,634 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:36:07,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:07 WrapperNode [2023-11-23 20:36:07,634 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:36:07,635 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:36:07,636 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:36:07,636 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:36:07,643 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:07" (1/1) ... [2023-11-23 20:36:07,650 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:07" (1/1) ... [2023-11-23 20:36:07,668 INFO L138 Inliner]: procedures = 16, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2023-11-23 20:36:07,668 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:36:07,669 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:36:07,669 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:36:07,670 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:36:07,679 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:07" (1/1) ... [2023-11-23 20:36:07,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:07" (1/1) ... [2023-11-23 20:36:07,681 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:07" (1/1) ... [2023-11-23 20:36:07,682 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:07" (1/1) ... [2023-11-23 20:36:07,688 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:07" (1/1) ... [2023-11-23 20:36:07,692 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:07" (1/1) ... [2023-11-23 20:36:07,693 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:07" (1/1) ... [2023-11-23 20:36:07,694 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:07" (1/1) ... [2023-11-23 20:36:07,697 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:36:07,698 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:36:07,698 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:36:07,698 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:36:07,699 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:07" (1/1) ... [2023-11-23 20:36:07,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:36:07,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:36:07,735 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:36:07,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:36:07,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:36:07,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:36:07,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:36:07,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-23 20:36:07,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:36:07,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-23 20:36:07,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:36:07,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:36:07,769 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:36:07,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:36:07,850 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:36:07,851 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:36:08,023 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:36:08,050 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:36:08,050 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-23 20:36:08,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:36:08 BoogieIcfgContainer [2023-11-23 20:36:08,052 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:36:08,055 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:36:08,055 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:36:08,058 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:36:08,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:36:07" (1/3) ... [2023-11-23 20:36:08,059 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca6035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:36:08, skipping insertion in model container [2023-11-23 20:36:08,059 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:07" (2/3) ... [2023-11-23 20:36:08,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca6035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:36:08, skipping insertion in model container [2023-11-23 20:36:08,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:36:08" (3/3) ... [2023-11-23 20:36:08,061 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1012a.c [2023-11-23 20:36:08,082 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:36:08,082 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:36:08,124 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:36:08,131 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@371eb5a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:36:08,131 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:36:08,136 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:36:08,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 20:36:08,141 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:08,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:36:08,142 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:36:08,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:08,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1051332728, now seen corresponding path program 1 times [2023-11-23 20:36:08,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:36:08,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439404668] [2023-11-23 20:36:08,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:08,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:36:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:08,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:36:08,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:36:08,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439404668] [2023-11-23 20:36:08,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439404668] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:08,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:36:08,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:36:08,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664379461] [2023-11-23 20:36:08,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:08,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 20:36:08,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:36:08,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 20:36:08,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:36:08,335 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:36:08,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:08,360 INFO L93 Difference]: Finished difference Result 27 states and 39 transitions. [2023-11-23 20:36:08,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 20:36:08,368 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-23 20:36:08,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:08,378 INFO L225 Difference]: With dead ends: 27 [2023-11-23 20:36:08,379 INFO L226 Difference]: Without dead ends: 12 [2023-11-23 20:36:08,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:36:08,387 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:36:08,388 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 20:36:08,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-23 20:36:08,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-11-23 20:36:08,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:36:08,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2023-11-23 20:36:08,415 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 8 [2023-11-23 20:36:08,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:36:08,415 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2023-11-23 20:36:08,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:36:08,416 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2023-11-23 20:36:08,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 20:36:08,417 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:08,417 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:36:08,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:36:08,418 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:36:08,418 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:08,419 INFO L85 PathProgramCache]: Analyzing trace with hash 604617598, now seen corresponding path program 1 times [2023-11-23 20:36:08,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:36:08,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178012821] [2023-11-23 20:36:08,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:08,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:36:08,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:36:08,489 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 20:36:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 20:36:08,559 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 20:36:08,560 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 20:36:08,562 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:36:08,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 20:36:08,567 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-23 20:36:08,571 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:36:08,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:36:08 BoogieIcfgContainer [2023-11-23 20:36:08,600 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:36:08,601 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:36:08,601 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:36:08,601 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:36:08,602 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:36:08" (3/4) ... [2023-11-23 20:36:08,604 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 20:36:08,605 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:36:08,606 INFO L158 Benchmark]: Toolchain (without parser) took 1204.56ms. Allocated memory was 102.8MB in the beginning and 142.6MB in the end (delta: 39.8MB). Free memory was 59.9MB in the beginning and 84.2MB in the end (delta: -24.4MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2023-11-23 20:36:08,607 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 102.8MB. Free memory is still 79.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:36:08,607 INFO L158 Benchmark]: CACSL2BoogieTranslator took 231.87ms. Allocated memory is still 102.8MB. Free memory was 59.6MB in the beginning and 49.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 20:36:08,613 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.18ms. Allocated memory is still 102.8MB. Free memory was 48.8MB in the beginning and 47.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:36:08,614 INFO L158 Benchmark]: Boogie Preprocessor took 27.86ms. Allocated memory is still 102.8MB. Free memory was 47.3MB in the beginning and 46.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:36:08,615 INFO L158 Benchmark]: RCFGBuilder took 354.35ms. Allocated memory was 102.8MB in the beginning and 142.6MB in the end (delta: 39.8MB). Free memory was 45.8MB in the beginning and 112.3MB in the end (delta: -66.5MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. [2023-11-23 20:36:08,616 INFO L158 Benchmark]: TraceAbstraction took 545.09ms. Allocated memory is still 142.6MB. Free memory was 111.5MB in the beginning and 85.0MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-23 20:36:08,616 INFO L158 Benchmark]: Witness Printer took 4.79ms. Allocated memory is still 142.6MB. Free memory was 85.0MB in the beginning and 84.2MB in the end (delta: 753.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:36:08,624 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 102.8MB. Free memory is still 79.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 231.87ms. Allocated memory is still 102.8MB. Free memory was 59.6MB in the beginning and 49.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.18ms. Allocated memory is still 102.8MB. Free memory was 48.8MB in the beginning and 47.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.86ms. Allocated memory is still 102.8MB. Free memory was 47.3MB in the beginning and 46.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 354.35ms. Allocated memory was 102.8MB in the beginning and 142.6MB in the end (delta: 39.8MB). Free memory was 45.8MB in the beginning and 112.3MB in the end (delta: -66.5MB). Peak memory consumption was 17.6MB. Max. memory is 16.1GB. * TraceAbstraction took 545.09ms. Allocated memory is still 142.6MB. Free memory was 111.5MB in the beginning and 85.0MB in the end (delta: 26.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 4.79ms. Allocated memory is still 142.6MB. Free memory was 85.0MB in the beginning and 84.2MB in the end (delta: 753.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 53]: 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 48. Possible FailurePath: [L48] float x = 1.0f / 0.0f; [L49] CALL, EXPR fabs_float(x) [L14] __uint32_t ix; VAL [\old(x)=10, x=10] [L16] ieee_float_shape_type gf_u; [L17] EXPR gf_u.value = (x) [L18] EXPR gf_u.word [L18] EXPR (ix) = gf_u.word [L15-L19] { ieee_float_shape_type gf_u; gf_u.value = (x); (ix) = gf_u.word; } VAL [\old(x)=10, ix=8, x=10] [L21] ieee_float_shape_type sf_u; [L22] EXPR sf_u.word = (ix & 0x7fffffff) [L23] EXPR sf_u.value [L23] EXPR (x) = sf_u.value [L20-L24] { ieee_float_shape_type sf_u; sf_u.word = (ix & 0x7fffffff); (x) = sf_u.value; } VAL [\old(x)=10, ix=8, x=9] [L25] return x; [L49] RET, EXPR fabs_float(x) [L49] float res = fabs_float(x); [L52] CALL, EXPR isinf_float(res) [L30] __int32_t ix; VAL [\old(x)=9, x=9] [L32] ieee_float_shape_type gf_u; [L33] EXPR gf_u.value = (x) [L34] EXPR gf_u.word [L34] EXPR (ix) = gf_u.word [L31-L35] { ieee_float_shape_type gf_u; gf_u.value = (x); (ix) = gf_u.word; } VAL [\old(x)=9, ix=-2147483648, x=9] [L36] ix &= 0x7fffffff [L37] return ((ix) == 0x7f800000L); [L52] RET, EXPR isinf_float(res) [L52] COND TRUE !isinf_float(res) [L53] reach_error() VAL [res=9, x=10] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 9 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, 9 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 20:36:08,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1012a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d5bcd8424024d71373d5028b594bdff9bfc267f48b2d86922f4388a4f67cbbe0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:36:11,229 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:36:11,345 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 20:36:11,352 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:36:11,352 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:36:11,379 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:36:11,380 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:36:11,380 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:36:11,381 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:36:11,382 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:36:11,382 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:36:11,383 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:36:11,384 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:36:11,384 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:36:11,385 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:36:11,385 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:36:11,386 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:36:11,387 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:36:11,387 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 20:36:11,388 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 20:36:11,388 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:36:11,389 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:36:11,389 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:36:11,389 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:36:11,390 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 20:36:11,390 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 20:36:11,391 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 20:36:11,391 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 20:36:11,391 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:36:11,392 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:36:11,392 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:36:11,392 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 20:36:11,392 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:36:11,393 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:36:11,393 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:36:11,393 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:36:11,393 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:36:11,394 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:36:11,394 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 20:36:11,394 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 20:36:11,394 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:36:11,396 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:36:11,396 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:36:11,396 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:36:11,396 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_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d5bcd8424024d71373d5028b594bdff9bfc267f48b2d86922f4388a4f67cbbe0 [2023-11-23 20:36:11,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:36:11,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:36:11,892 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:36:11,893 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:36:11,894 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:36:11,896 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/float-newlib/float_req_bl_1012a.c [2023-11-23 20:36:15,217 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:36:15,431 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:36:15,431 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/sv-benchmarks/c/float-newlib/float_req_bl_1012a.c [2023-11-23 20:36:15,447 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/data/c421f6771/dd81f1cb3d504858a181374019f5b44d/FLAGeb78369cd [2023-11-23 20:36:15,466 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/data/c421f6771/dd81f1cb3d504858a181374019f5b44d [2023-11-23 20:36:15,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:36:15,479 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:36:15,480 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:36:15,481 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:36:15,486 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:36:15,486 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:36:15" (1/1) ... [2023-11-23 20:36:15,490 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19a5c569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:15, skipping insertion in model container [2023-11-23 20:36:15,491 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:36:15" (1/1) ... [2023-11-23 20:36:15,516 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:36:15,739 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_5c7e43e3-3d73-4515-957b-60b323f398be/sv-benchmarks/c/float-newlib/float_req_bl_1012a.c[1156,1169] [2023-11-23 20:36:15,744 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:36:15,763 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:36:15,795 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_5c7e43e3-3d73-4515-957b-60b323f398be/sv-benchmarks/c/float-newlib/float_req_bl_1012a.c[1156,1169] [2023-11-23 20:36:15,797 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:36:15,820 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:36:15,821 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:15 WrapperNode [2023-11-23 20:36:15,824 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:36:15,826 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:36:15,826 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:36:15,826 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:36:15,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:15" (1/1) ... [2023-11-23 20:36:15,859 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:15" (1/1) ... [2023-11-23 20:36:15,887 INFO L138 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2023-11-23 20:36:15,888 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:36:15,889 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:36:15,889 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:36:15,890 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:36:15,899 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:15" (1/1) ... [2023-11-23 20:36:15,899 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:15" (1/1) ... [2023-11-23 20:36:15,911 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:15" (1/1) ... [2023-11-23 20:36:15,912 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:15" (1/1) ... [2023-11-23 20:36:15,928 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:15" (1/1) ... [2023-11-23 20:36:15,939 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:15" (1/1) ... [2023-11-23 20:36:15,943 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:15" (1/1) ... [2023-11-23 20:36:15,945 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:15" (1/1) ... [2023-11-23 20:36:15,952 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:36:15,961 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:36:15,961 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:36:15,982 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:36:15,983 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:15" (1/1) ... [2023-11-23 20:36:15,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:36:16,002 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:36:16,013 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:36:16,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:36:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:36:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 20:36:16,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:36:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-23 20:36:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-23 20:36:16,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:36:16,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:36:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-23 20:36:16,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-23 20:36:16,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:36:16,160 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:36:16,163 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:36:16,355 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:36:16,404 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:36:16,411 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-23 20:36:16,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:36:16 BoogieIcfgContainer [2023-11-23 20:36:16,413 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:36:16,415 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:36:16,417 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:36:16,422 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:36:16,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:36:15" (1/3) ... [2023-11-23 20:36:16,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28799512 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:36:16, skipping insertion in model container [2023-11-23 20:36:16,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:15" (2/3) ... [2023-11-23 20:36:16,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28799512 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:36:16, skipping insertion in model container [2023-11-23 20:36:16,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:36:16" (3/3) ... [2023-11-23 20:36:16,427 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1012a.c [2023-11-23 20:36:16,455 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:36:16,456 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:36:16,519 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:36:16,532 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@21ba8918, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:36:16,532 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:36:16,537 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:36:16,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-23 20:36:16,544 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:16,545 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:36:16,546 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:36:16,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:16,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1051332728, now seen corresponding path program 1 times [2023-11-23 20:36:16,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:36:16,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2001850552] [2023-11-23 20:36:16,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:16,566 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:36:16,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:36:16,570 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:36:16,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-23 20:36:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:16,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 20:36:16,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:16,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:36:16,708 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:36:16,709 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:36:16,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2001850552] [2023-11-23 20:36:16,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2001850552] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:16,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:36:16,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 20:36:16,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683053189] [2023-11-23 20:36:16,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:16,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 20:36:16,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:36:16,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 20:36:16,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:36:16,762 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:36:16,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:16,794 INFO L93 Difference]: Finished difference Result 27 states and 39 transitions. [2023-11-23 20:36:16,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 20:36:16,797 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-23 20:36:16,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:16,806 INFO L225 Difference]: With dead ends: 27 [2023-11-23 20:36:16,806 INFO L226 Difference]: Without dead ends: 12 [2023-11-23 20:36:16,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 20:36:16,813 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 20:36:16,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 20:36:16,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-23 20:36:16,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-11-23 20:36:16,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:36:16,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2023-11-23 20:36:16,849 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 8 [2023-11-23 20:36:16,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:36:16,849 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2023-11-23 20:36:16,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:36:16,850 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2023-11-23 20:36:16,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 20:36:16,851 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:16,851 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:36:16,861 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-23 20:36:17,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:36:17,061 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:36:17,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:17,062 INFO L85 PathProgramCache]: Analyzing trace with hash 604617598, now seen corresponding path program 1 times [2023-11-23 20:36:17,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 20:36:17,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [84294620] [2023-11-23 20:36:17,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:17,065 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:36:17,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 20:36:17,067 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-23 20:36:17,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 20:36:17,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:17,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-23 20:36:17,243 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 20:36:17,349 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 [2023-11-23 20:36:17,459 INFO L349 Elim1Store]: treesize reduction 19, result has 26.9 percent of original size [2023-11-23 20:36:17,460 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 44 treesize of output 31 [2023-11-23 20:36:17,741 INFO L349 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2023-11-23 20:36:17,742 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 94 treesize of output 61 [2023-11-23 20:36:17,755 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2023-11-23 20:36:17,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 92 treesize of output 44 [2023-11-23 20:36:17,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:36:17,935 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 20:36:17,935 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 20:36:17,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [84294620] [2023-11-23 20:36:17,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [84294620] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:17,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:36:17,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-23 20:36:17,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864567393] [2023-11-23 20:36:17,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:17,938 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 20:36:17,938 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 20:36:17,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 20:36:17,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-11-23 20:36:17,940 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:36:18,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:18,241 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2023-11-23 20:36:18,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 20:36:18,243 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-11-23 20:36:18,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:18,244 INFO L225 Difference]: With dead ends: 12 [2023-11-23 20:36:18,244 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 20:36:18,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-23 20:36:18,246 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 20:36:18,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 13 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 20:36:18,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 20:36:18,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 20:36:18,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:36:18,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 20:36:18,248 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2023-11-23 20:36:18,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:36:18,248 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 20:36:18,249 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 20:36:18,249 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 20:36:18,249 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:36:18,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 20:36:18,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-23 20:36:18,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-23 20:36:18,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 20:36:18,509 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 20:36:18,510 INFO L899 garLoopResultBuilder]: For program point L31-1(lines 31 35) no Hoare annotation was computed. [2023-11-23 20:36:18,510 INFO L895 garLoopResultBuilder]: At program point L31-2(lines 31 35) the Hoare annotation is: (exists ((|v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12| (_ BitVec 32)) (|v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_12| (_ BitVec 32)) (currentRoundingMode RoundingMode)) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12|) (_ bv0 32))) (.cse1 (select (select |#memory_int| |v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_12|) (_ bv0 32)))) (and (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24))) (= (bvand (_ bv2147483647 32) .cse0) .cse1) (= (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) |ULTIMATE.start_isinf_float_~x#1|)))) [2023-11-23 20:36:18,510 INFO L899 garLoopResultBuilder]: For program point L31-3(lines 31 35) no Hoare annotation was computed. [2023-11-23 20:36:18,511 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 55) no Hoare annotation was computed. [2023-11-23 20:36:18,511 INFO L899 garLoopResultBuilder]: For program point L15-1(lines 15 19) no Hoare annotation was computed. [2023-11-23 20:36:18,511 INFO L895 garLoopResultBuilder]: At program point L15-2(lines 15 19) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)) |ULTIMATE.start_fabs_float_~x#1|)) [2023-11-23 20:36:18,511 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 20:36:18,511 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 40 58) no Hoare annotation was computed. [2023-11-23 20:36:18,512 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 53) no Hoare annotation was computed. [2023-11-23 20:36:18,512 INFO L899 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2023-11-23 20:36:18,512 INFO L899 garLoopResultBuilder]: For program point L20(lines 20 24) no Hoare annotation was computed. [2023-11-23 20:36:18,512 INFO L895 garLoopResultBuilder]: At program point L20-1(lines 20 24) the Hoare annotation is: (and (exists ((|v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12| (_ BitVec 32)) (|v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_12| (_ BitVec 32)) (currentRoundingMode RoundingMode)) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12|) (_ bv0 32))) (.cse1 (select (select |#memory_int| |v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_12|) (_ bv0 32)))) (and (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24))) (= (bvand (_ bv2147483647 32) .cse0) .cse1) (= (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) |ULTIMATE.start_fabs_float_~x#1|)))) (exists ((|v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12| (_ BitVec 32)) (currentRoundingMode RoundingMode)) (let ((.cse2 (select (select |#memory_int| |v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12|) (_ bv0 32)))) (and (= (fp ((_ extract 31 31) .cse2) ((_ extract 30 23) .cse2) ((_ extract 22 0) .cse2)) (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24))) (= .cse2 |ULTIMATE.start_fabs_float_~ix~0#1|))))) [2023-11-23 20:36:18,513 INFO L899 garLoopResultBuilder]: For program point L20-2(lines 20 24) no Hoare annotation was computed. [2023-11-23 20:36:18,516 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-23 20:36:18,518 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 20:36:18,530 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12 : bv32, v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_12 : bv32, currentRoundingMode : FloatRoundingMode :: (~fp~32(#memory_int[v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12][0bv32][22:0]) == ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32()) && ~bvand~32(2147483647bv32, #memory_int[v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12][0bv32]) == #memory_int[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_12][0bv32]) && ~fp~32(#memory_int[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_12][0bv32][22:0]) == ~x) could not be translated [2023-11-23 20:36:18,530 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12 : bv32, currentRoundingMode : FloatRoundingMode :: ~fp~32(#memory_int[v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12][0bv32][22:0]) == ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32()) && #memory_int[v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12][0bv32] == ~ix~0) could not be translated [2023-11-23 20:36:18,532 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12 : bv32, v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_12 : bv32, currentRoundingMode : FloatRoundingMode :: (~fp~32(#memory_int[v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12][0bv32][22:0]) == ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32()) && ~bvand~32(2147483647bv32, #memory_int[v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12][0bv32]) == #memory_int[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_12][0bv32]) && ~fp~32(#memory_int[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_12][0bv32][22:0]) == ~x) could not be translated [2023-11-23 20:36:18,532 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32()) == ~x) could not be translated [2023-11-23 20:36:18,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 08:36:18 BoogieIcfgContainer [2023-11-23 20:36:18,533 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 20:36:18,534 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:36:18,534 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:36:18,534 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:36:18,535 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:36:16" (3/4) ... [2023-11-23 20:36:18,537 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:36:18,544 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-23 20:36:18,545 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-23 20:36:18,545 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-23 20:36:18,545 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 20:36:18,624 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 20:36:18,624 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/witness.yml [2023-11-23 20:36:18,625 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:36:18,627 INFO L158 Benchmark]: Toolchain (without parser) took 3147.21ms. Allocated memory was 75.5MB in the beginning and 102.8MB in the end (delta: 27.3MB). Free memory was 48.7MB in the beginning and 49.3MB in the end (delta: -671.8kB). Peak memory consumption was 26.7MB. Max. memory is 16.1GB. [2023-11-23 20:36:18,628 INFO L158 Benchmark]: CDTParser took 1.34ms. Allocated memory is still 75.5MB. Free memory is still 51.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:36:18,629 INFO L158 Benchmark]: CACSL2BoogieTranslator took 344.45ms. Allocated memory is still 75.5MB. Free memory was 48.4MB in the beginning and 37.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 20:36:18,629 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.09ms. Allocated memory is still 75.5MB. Free memory was 37.0MB in the beginning and 35.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:36:18,629 INFO L158 Benchmark]: Boogie Preprocessor took 70.86ms. Allocated memory is still 75.5MB. Free memory was 35.4MB in the beginning and 34.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:36:18,630 INFO L158 Benchmark]: RCFGBuilder took 452.09ms. Allocated memory is still 75.5MB. Free memory was 33.9MB in the beginning and 42.5MB in the end (delta: -8.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:36:18,634 INFO L158 Benchmark]: TraceAbstraction took 2117.78ms. Allocated memory was 75.5MB in the beginning and 102.8MB in the end (delta: 27.3MB). Free memory was 41.8MB in the beginning and 53.6MB in the end (delta: -11.7MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. [2023-11-23 20:36:18,635 INFO L158 Benchmark]: Witness Printer took 91.49ms. Allocated memory is still 102.8MB. Free memory was 53.6MB in the beginning and 49.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:36:18,640 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.34ms. Allocated memory is still 75.5MB. Free memory is still 51.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 344.45ms. Allocated memory is still 75.5MB. Free memory was 48.4MB in the beginning and 37.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.09ms. Allocated memory is still 75.5MB. Free memory was 37.0MB in the beginning and 35.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.86ms. Allocated memory is still 75.5MB. Free memory was 35.4MB in the beginning and 34.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 452.09ms. Allocated memory is still 75.5MB. Free memory was 33.9MB in the beginning and 42.5MB in the end (delta: -8.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2117.78ms. Allocated memory was 75.5MB in the beginning and 102.8MB in the end (delta: 27.3MB). Free memory was 41.8MB in the beginning and 53.6MB in the end (delta: -11.7MB). Peak memory consumption was 14.6MB. Max. memory is 16.1GB. * Witness Printer took 91.49ms. Allocated memory is still 102.8MB. Free memory was 53.6MB in the beginning and 49.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12 : bv32, v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_12 : bv32, currentRoundingMode : FloatRoundingMode :: (~fp~32(#memory_int[v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12][0bv32][22:0]) == ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32()) && ~bvand~32(2147483647bv32, #memory_int[v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12][0bv32]) == #memory_int[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_12][0bv32]) && ~fp~32(#memory_int[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_12][0bv32][22:0]) == ~x) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12 : bv32, currentRoundingMode : FloatRoundingMode :: ~fp~32(#memory_int[v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12][0bv32][22:0]) == ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32()) && #memory_int[v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12][0bv32] == ~ix~0) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12 : bv32, v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_12 : bv32, currentRoundingMode : FloatRoundingMode :: (~fp~32(#memory_int[v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12][0bv32][22:0]) == ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32()) && ~bvand~32(2147483647bv32, #memory_int[v_ULTIMATE.start_fabs_float_~#gf_u~0#1.base_12][0bv32]) == #memory_int[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_12][0bv32]) && ~fp~32(#memory_int[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_12][0bv32][31:31], #memory_int[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_12][0bv32][30:23], #memory_int[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_12][0bv32][22:0]) == ~x) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists currentRoundingMode : FloatRoundingMode :: ~fp.div~32(currentRoundingMode, ~to_fp~32(currentRoundingMode, 1.0), ~Pluszero~32()) == ~x) could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 53]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 35 IncrementalHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 12 mSDtfsCounter, 35 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 169 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 8 QuantifiedInterpolants, 350 SizeOfPredicates, 11 NumberOfNonLiveVariables, 89 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-11-23 20:36:18,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c7e43e3-3d73-4515-957b-60b323f398be/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE