./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b6a79bd811ba30bc3163e272e2b4a2c8d4bc7e99a75fdcec3ffb0e3966342f97 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:24:52,165 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:24:52,240 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 22:24:52,246 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:24:52,246 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:24:52,273 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:24:52,274 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:24:52,275 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:24:52,275 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:24:52,276 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:24:52,277 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:24:52,277 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:24:52,278 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:24:52,279 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:24:52,280 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:24:52,280 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:24:52,281 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:24:52,281 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:24:52,282 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:24:52,282 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:24:52,283 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:24:52,284 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:24:52,284 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:24:52,285 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:24:52,285 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:24:52,286 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:24:52,286 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:24:52,287 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:24:52,287 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:24:52,287 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:24:52,288 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:24:52,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:24:52,313 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:24:52,314 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:24:52,314 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:24:52,314 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:24:52,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:24:52,315 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:24:52,315 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:24:52,315 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:24:52,316 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:24:52,316 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:24:52,316 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6a79bd811ba30bc3163e272e2b4a2c8d4bc7e99a75fdcec3ffb0e3966342f97 [2023-11-21 22:24:52,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:24:52,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:24:52,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:24:52,662 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:24:52,663 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:24:52,664 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2023-11-21 22:24:56,112 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:24:56,398 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:24:56,400 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2023-11-21 22:24:56,410 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/data/634e726f2/adb51ba9ec6c43f781ff1fc4dbc25414/FLAGf300167f6 [2023-11-21 22:24:56,427 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/data/634e726f2/adb51ba9ec6c43f781ff1fc4dbc25414 [2023-11-21 22:24:56,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:24:56,437 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:24:56,441 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:24:56,441 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:24:56,447 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:24:56,451 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:24:56" (1/1) ... [2023-11-21 22:24:56,452 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2049ecc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:56, skipping insertion in model container [2023-11-21 22:24:56,453 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:24:56" (1/1) ... [2023-11-21 22:24:56,483 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:24:56,692 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_5187117d-77f0-411b-9af8-d712a76a41bd/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c[2109,2122] [2023-11-21 22:24:56,696 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:24:56,708 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:24:56,740 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_5187117d-77f0-411b-9af8-d712a76a41bd/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c[2109,2122] [2023-11-21 22:24:56,741 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:24:56,762 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:24:56,763 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:56 WrapperNode [2023-11-21 22:24:56,763 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:24:56,764 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:24:56,765 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:24:56,765 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:24:56,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:56" (1/1) ... [2023-11-21 22:24:56,784 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:56" (1/1) ... [2023-11-21 22:24:56,822 INFO L138 Inliner]: procedures = 16, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 160 [2023-11-21 22:24:56,822 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:24:56,823 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:24:56,823 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:24:56,823 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:24:56,834 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:56" (1/1) ... [2023-11-21 22:24:56,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:56" (1/1) ... [2023-11-21 22:24:56,841 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:56" (1/1) ... [2023-11-21 22:24:56,855 INFO L187 HeapSplitter]: Split 8 memory accesses to 3 slices as follows [2, 3, 3] [2023-11-21 22:24:56,856 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:56" (1/1) ... [2023-11-21 22:24:56,856 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:56" (1/1) ... [2023-11-21 22:24:56,869 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:56" (1/1) ... [2023-11-21 22:24:56,874 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:56" (1/1) ... [2023-11-21 22:24:56,877 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:56" (1/1) ... [2023-11-21 22:24:56,879 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:56" (1/1) ... [2023-11-21 22:24:56,883 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:24:56,884 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:24:56,884 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:24:56,884 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:24:56,885 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:56" (1/1) ... [2023-11-21 22:24:56,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:24:56,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:56,924 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:56,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:24:56,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:24:56,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:24:56,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 22:24:56,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 22:24:56,977 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:24:56,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-11-21 22:24:56,977 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-11-21 22:24:56,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-11-21 22:24:56,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 22:24:56,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 22:24:56,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 22:24:56,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-11-21 22:24:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-11-21 22:24:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2023-11-21 22:24:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:24:56,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:24:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 22:24:56,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 22:24:56,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-21 22:24:56,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:24:57,080 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:24:57,082 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:24:57,483 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:24:57,922 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:24:57,922 INFO L308 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-21 22:24:57,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:24:57 BoogieIcfgContainer [2023-11-21 22:24:57,926 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:24:57,929 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:24:57,929 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:24:57,934 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:24:57,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:24:56" (1/3) ... [2023-11-21 22:24:57,936 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a31f8ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:24:57, skipping insertion in model container [2023-11-21 22:24:57,936 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:56" (2/3) ... [2023-11-21 22:24:57,937 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a31f8ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:24:57, skipping insertion in model container [2023-11-21 22:24:57,937 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:24:57" (3/3) ... [2023-11-21 22:24:57,941 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092b.c [2023-11-21 22:24:57,966 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:24:57,967 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:24:58,042 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:24:58,049 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=PETRI_NET, 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;@89df534, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:24:58,049 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:24:58,054 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.6875) internal successors, (27), 17 states have internal predecessors, (27), 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) [2023-11-21 22:24:58,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 22:24:58,060 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:24:58,060 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:24:58,061 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:24:58,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:58,068 INFO L85 PathProgramCache]: Analyzing trace with hash 299509545, now seen corresponding path program 1 times [2023-11-21 22:24:58,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:58,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419395870] [2023-11-21 22:24:58,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:58,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:58,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:24:58,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:24:58,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:24:58,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419395870] [2023-11-21 22:24:58,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419395870] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:24:58,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:24:58,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:24:58,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673171576] [2023-11-21 22:24:58,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:24:58,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 22:24:58,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:24:58,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 22:24:58,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 22:24:58,370 INFO L87 Difference]: Start difference. First operand has 18 states, 16 states have (on average 1.6875) internal successors, (27), 17 states have internal predecessors, (27), 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) [2023-11-21 22:24:58,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:24:58,448 INFO L93 Difference]: Finished difference Result 35 states and 53 transitions. [2023-11-21 22:24:58,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 22:24:58,451 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 [2023-11-21 22:24:58,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:24:58,462 INFO L225 Difference]: With dead ends: 35 [2023-11-21 22:24:58,462 INFO L226 Difference]: Without dead ends: 16 [2023-11-21 22:24:58,466 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 [2023-11-21 22:24:58,472 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-21 22:24:58,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-21 22:24:58,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-11-21 22:24:58,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-11-21 22:24:58,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 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) [2023-11-21 22:24:58,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2023-11-21 22:24:58,518 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 8 [2023-11-21 22:24:58,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:24:58,519 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2023-11-21 22:24:58,520 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) [2023-11-21 22:24:58,520 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2023-11-21 22:24:58,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 22:24:58,522 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:24:58,523 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:24:58,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:24:58,524 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:24:58,524 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:58,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1809605608, now seen corresponding path program 1 times [2023-11-21 22:24:58,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:58,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560118416] [2023-11-21 22:24:58,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:58,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:58,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:24:58,625 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:24:58,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:24:58,678 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:24:58,679 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:24:58,681 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:24:58,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:24:58,688 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-21 22:24:58,693 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:24:58,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:24:58 BoogieIcfgContainer [2023-11-21 22:24:58,718 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:24:58,719 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:24:58,719 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:24:58,719 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:24:58,720 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:24:57" (3/4) ... [2023-11-21 22:24:58,723 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:24:58,724 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:24:58,725 INFO L158 Benchmark]: Toolchain (without parser) took 2287.95ms. Allocated memory was 176.2MB in the beginning and 268.4MB in the end (delta: 92.3MB). Free memory was 132.8MB in the beginning and 205.2MB in the end (delta: -72.4MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2023-11-21 22:24:58,726 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 176.2MB. Free memory is still 145.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:24:58,727 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.42ms. Allocated memory is still 176.2MB. Free memory was 132.8MB in the beginning and 121.4MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:24:58,727 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.74ms. Allocated memory is still 176.2MB. Free memory was 121.4MB in the beginning and 119.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:24:58,728 INFO L158 Benchmark]: Boogie Preprocessor took 60.47ms. Allocated memory is still 176.2MB. Free memory was 119.3MB in the beginning and 116.6MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:24:58,729 INFO L158 Benchmark]: RCFGBuilder took 1041.67ms. Allocated memory was 176.2MB in the beginning and 268.4MB in the end (delta: 92.3MB). Free memory was 116.6MB in the beginning and 233.5MB in the end (delta: -116.9MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. [2023-11-21 22:24:58,730 INFO L158 Benchmark]: TraceAbstraction took 789.66ms. Allocated memory is still 268.4MB. Free memory was 233.5MB in the beginning and 205.2MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-21 22:24:58,730 INFO L158 Benchmark]: Witness Printer took 5.47ms. Allocated memory is still 268.4MB. Free memory is still 205.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:24:58,734 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 176.2MB. Free memory is still 145.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.42ms. Allocated memory is still 176.2MB. Free memory was 132.8MB in the beginning and 121.4MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.74ms. Allocated memory is still 176.2MB. Free memory was 121.4MB in the beginning and 119.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.47ms. Allocated memory is still 176.2MB. Free memory was 119.3MB in the beginning and 116.6MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1041.67ms. Allocated memory was 176.2MB in the beginning and 268.4MB in the end (delta: 92.3MB). Free memory was 116.6MB in the beginning and 233.5MB in the end (delta: -116.9MB). Peak memory consumption was 55.6MB. Max. memory is 16.1GB. * TraceAbstraction took 789.66ms. Allocated memory is still 268.4MB. Free memory was 233.5MB in the beginning and 205.2MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 5.47ms. Allocated memory is still 268.4MB. Free memory is still 205.2MB. 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: 98]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 97, overapproximation of someBinaryArithmeticDOUBLEoperation at line 55. Possible FailurePath: [L19] static const double huge_ceil = 1.0e300; [L93] double x = 0.0; [L94] CALL, EXPR ceil_double(x) [L22] __int32_t i0, i1, j0; [L23] __uint32_t i, j; VAL [\old(x)=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L25] ieee_double_shape_type ew_u; [L26] EXPR ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] EXPR (i0) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] EXPR (i1) = ew_u.parts.lsw [L24-L29] { ieee_double_shape_type ew_u; ew_u.value = (x); (i0) = ew_u.parts.msw; (i1) = ew_u.parts.lsw; } VAL [\old(x)=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-1020264448, i1=-1, x=0] [L30] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-1020264448, i1=-1, j0=52, x=0] [L31] COND FALSE !(j0 < 20) VAL [\old(x)=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-1020264448, i1=-1, j0=52, x=0] [L53] COND TRUE j0 > 51 [L54] COND FALSE !(j0 == 0x400) [L57] return x; VAL [\old(x)=0, \result=0, huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-1020264448, i1=-1, j0=52, x=0] [L94] RET, EXPR ceil_double(x) [L94] double res = ceil_double(x); [L97] COND TRUE res != x VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=0, x=0] [L98] reach_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 14 mSDtfsCounter, 8 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=18occurred 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, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 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 [2023-11-21 22:24:58,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/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 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_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b6a79bd811ba30bc3163e272e2b4a2c8d4bc7e99a75fdcec3ffb0e3966342f97 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:25:01,582 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:25:01,720 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-21 22:25:01,729 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:25:01,730 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:25:01,774 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:25:01,775 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:25:01,775 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:25:01,777 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:25:01,782 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:25:01,783 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:25:01,783 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:25:01,784 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:25:01,786 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:25:01,787 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:25:01,788 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:25:01,788 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:25:01,789 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:25:01,790 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:25:01,790 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:25:01,791 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:25:01,791 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:25:01,792 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:25:01,792 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:25:01,793 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:25:01,793 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:25:01,794 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:25:01,794 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:25:01,795 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:25:01,795 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:25:01,797 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:25:01,798 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:25:01,798 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:25:01,798 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:25:01,799 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:25:01,799 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:25:01,801 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:25:01,801 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:25:01,801 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:25:01,802 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:25:01,802 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:25:01,803 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:25:01,803 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:25:01,803 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:25:01,804 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:25:01,804 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6a79bd811ba30bc3163e272e2b4a2c8d4bc7e99a75fdcec3ffb0e3966342f97 [2023-11-21 22:25:02,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:25:02,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:25:02,301 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:25:02,302 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:25:02,303 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:25:02,306 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2023-11-21 22:25:05,775 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:25:06,122 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:25:06,122 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c [2023-11-21 22:25:06,139 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/data/68d8f38b7/f6dd4b0f1a794fa0a34318910aad7cc0/FLAGbf7aad1eb [2023-11-21 22:25:06,158 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/data/68d8f38b7/f6dd4b0f1a794fa0a34318910aad7cc0 [2023-11-21 22:25:06,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:25:06,163 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:25:06,164 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:06,165 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:25:06,171 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:25:06,172 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:06" (1/1) ... [2023-11-21 22:25:06,174 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22079549 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:06, skipping insertion in model container [2023-11-21 22:25:06,174 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:06" (1/1) ... [2023-11-21 22:25:06,206 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:25:06,442 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_5187117d-77f0-411b-9af8-d712a76a41bd/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c[2109,2122] [2023-11-21 22:25:06,447 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:06,465 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:25:06,507 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_5187117d-77f0-411b-9af8-d712a76a41bd/sv-benchmarks/c/float-newlib/double_req_bl_1092b.c[2109,2122] [2023-11-21 22:25:06,508 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:06,547 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:25:06,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:06 WrapperNode [2023-11-21 22:25:06,547 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:06,549 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:25:06,549 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:25:06,549 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:25:06,560 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:06" (1/1) ... [2023-11-21 22:25:06,579 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:06" (1/1) ... [2023-11-21 22:25:06,635 INFO L138 Inliner]: procedures = 19, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 95 [2023-11-21 22:25:06,636 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:25:06,638 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:25:06,638 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:25:06,638 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:25:06,653 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:06" (1/1) ... [2023-11-21 22:25:06,654 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:06" (1/1) ... [2023-11-21 22:25:06,671 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:06" (1/1) ... [2023-11-21 22:25:06,687 INFO L187 HeapSplitter]: Split 8 memory accesses to 3 slices as follows [2, 3, 3] [2023-11-21 22:25:06,688 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:06" (1/1) ... [2023-11-21 22:25:06,688 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:06" (1/1) ... [2023-11-21 22:25:06,701 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:06" (1/1) ... [2023-11-21 22:25:06,707 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:06" (1/1) ... [2023-11-21 22:25:06,711 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:06" (1/1) ... [2023-11-21 22:25:06,713 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:06" (1/1) ... [2023-11-21 22:25:06,719 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:25:06,720 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:25:06,721 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:25:06,721 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:25:06,722 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:06" (1/1) ... [2023-11-21 22:25:06,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:25:06,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:06,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:06,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:25:06,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:25:06,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2023-11-21 22:25:06,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2023-11-21 22:25:06,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2023-11-21 22:25:06,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2023-11-21 22:25:06,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2023-11-21 22:25:06,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2023-11-21 22:25:06,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 22:25:06,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-21 22:25:06,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-21 22:25:06,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:25:06,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-21 22:25:06,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-21 22:25:06,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-21 22:25:06,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:25:06,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:25:06,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-21 22:25:06,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-21 22:25:06,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-21 22:25:06,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:25:06,930 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:25:06,934 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:25:08,562 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:25:08,799 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:25:08,807 INFO L308 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-21 22:25:08,810 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:08 BoogieIcfgContainer [2023-11-21 22:25:08,811 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:25:08,815 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:25:08,816 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:25:08,820 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:25:08,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:25:06" (1/3) ... [2023-11-21 22:25:08,822 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db81029 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:25:08, skipping insertion in model container [2023-11-21 22:25:08,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:06" (2/3) ... [2023-11-21 22:25:08,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3db81029 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:25:08, skipping insertion in model container [2023-11-21 22:25:08,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:08" (3/3) ... [2023-11-21 22:25:08,828 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092b.c [2023-11-21 22:25:08,854 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:25:08,855 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:25:08,931 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:25:08,941 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=PETRI_NET, 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;@5f3188c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:25:08,941 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:25:08,947 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.6875) internal successors, (27), 17 states have internal predecessors, (27), 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) [2023-11-21 22:25:08,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 22:25:08,956 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:08,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:25:08,957 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:25:08,963 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:08,964 INFO L85 PathProgramCache]: Analyzing trace with hash -372422193, now seen corresponding path program 1 times [2023-11-21 22:25:08,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:25:08,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2030042202] [2023-11-21 22:25:08,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:08,977 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 [2023-11-21 22:25:08,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:25:08,980 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:25:08,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:25:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:09,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-21 22:25:09,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:25:09,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:25:09,176 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:25:09,178 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:25:09,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2030042202] [2023-11-21 22:25:09,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2030042202] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:09,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:25:09,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-21 22:25:09,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727308287] [2023-11-21 22:25:09,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:09,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-21 22:25:09,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:25:09,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-21 22:25:09,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-21 22:25:09,232 INFO L87 Difference]: Start difference. First operand has 18 states, 16 states have (on average 1.6875) internal successors, (27), 17 states have internal predecessors, (27), 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) [2023-11-21 22:25:10,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:25:10,531 INFO L93 Difference]: Finished difference Result 35 states and 53 transitions. [2023-11-21 22:25:10,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-21 22:25:10,534 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 [2023-11-21 22:25:10,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:25:10,544 INFO L225 Difference]: With dead ends: 35 [2023-11-21 22:25:10,544 INFO L226 Difference]: Without dead ends: 16 [2023-11-21 22:25:10,548 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 [2023-11-21 22:25:10,552 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:25:10,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-21 22:25:10,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-11-21 22:25:10,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-11-21 22:25:10,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 15 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) [2023-11-21 22:25:10,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2023-11-21 22:25:10,594 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 8 [2023-11-21 22:25:10,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:25:10,595 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2023-11-21 22:25:10,595 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) [2023-11-21 22:25:10,596 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2023-11-21 22:25:10,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-21 22:25:10,597 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:10,597 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:25:10,602 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:25:10,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:25:10,803 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:25:10,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:10,804 INFO L85 PathProgramCache]: Analyzing trace with hash 530871874, now seen corresponding path program 1 times [2023-11-21 22:25:10,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:25:10,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1866611346] [2023-11-21 22:25:10,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:10,811 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 [2023-11-21 22:25:10,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:25:10,812 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:25:10,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:25:10,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:10,997 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-21 22:25:11,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:25:11,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:25:11,339 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:25:11,340 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:25:11,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1866611346] [2023-11-21 22:25:11,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1866611346] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:11,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:25:11,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:25:11,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636733607] [2023-11-21 22:25:11,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:11,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:25:11,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:25:11,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:25:11,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:25:11,355 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-11-21 22:25:11,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:25:11,774 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2023-11-21 22:25:11,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:25:11,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2023-11-21 22:25:11,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:25:11,776 INFO L225 Difference]: With dead ends: 23 [2023-11-21 22:25:11,777 INFO L226 Difference]: Without dead ends: 13 [2023-11-21 22:25:11,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:25:11,779 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 12 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:25:11,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 17 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:25:11,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-11-21 22:25:11,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-11-21 22:25:11,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0) internal successors, (12), 12 states have internal predecessors, (12), 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) [2023-11-21 22:25:11,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2023-11-21 22:25:11,787 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 9 [2023-11-21 22:25:11,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:25:11,788 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2023-11-21 22:25:11,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 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) [2023-11-21 22:25:11,788 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2023-11-21 22:25:11,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-21 22:25:11,792 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:11,793 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:25:11,806 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:25:12,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:25:12,000 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:25:12,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:12,001 INFO L85 PathProgramCache]: Analyzing trace with hash 2084312216, now seen corresponding path program 1 times [2023-11-21 22:25:12,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:25:12,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [222705744] [2023-11-21 22:25:12,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:12,003 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 [2023-11-21 22:25:12,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:25:12,041 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:25:12,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/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 (4)] Waiting until timeout for monitored process [2023-11-21 22:25:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:25:12,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-21 22:25:12,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:25:13,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:25:13,345 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:25:13,346 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:25:13,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [222705744] [2023-11-21 22:25:13,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [222705744] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:25:13,347 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:25:13,347 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-21 22:25:13,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474090967] [2023-11-21 22:25:13,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:25:13,348 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-21 22:25:13,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:25:13,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-21 22:25:13,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:25:13,350 INFO L87 Difference]: Start difference. First operand 13 states and 12 transitions. Second operand has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 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) [2023-11-21 22:25:15,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:25:15,827 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2023-11-21 22:25:15,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:25:15,828 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 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 12 [2023-11-21 22:25:15,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:25:15,828 INFO L225 Difference]: With dead ends: 13 [2023-11-21 22:25:15,829 INFO L226 Difference]: Without dead ends: 0 [2023-11-21 22:25:15,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:25:15,831 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 9 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:25:15,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 9 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-21 22:25:15,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-21 22:25:15,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-21 22:25:15,833 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) [2023-11-21 22:25:15,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-21 22:25:15,834 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2023-11-21 22:25:15,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:25:15,834 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-21 22:25:15,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.5) internal successors, (12), 7 states have internal predecessors, (12), 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) [2023-11-21 22:25:15,834 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-21 22:25:15,835 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 22:25:15,838 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:25:15,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/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 (4)] Forceful destruction successful, exit code 0 [2023-11-21 22:25:16,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:25:16,041 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-21 22:25:16,236 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 61) no Hoare annotation was computed. [2023-11-21 22:25:16,236 INFO L899 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2023-11-21 22:25:16,236 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 85 102) no Hoare annotation was computed. [2023-11-21 22:25:16,236 INFO L899 garLoopResultBuilder]: For program point L53(lines 53 75) no Hoare annotation was computed. [2023-11-21 22:25:16,237 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-21 22:25:16,237 INFO L899 garLoopResultBuilder]: For program point ceil_double_returnLabel#1(lines 21 83) no Hoare annotation was computed. [2023-11-21 22:25:16,237 INFO L899 garLoopResultBuilder]: For program point L97(lines 97 100) no Hoare annotation was computed. [2023-11-21 22:25:16,237 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 75) no Hoare annotation was computed. [2023-11-21 22:25:16,237 INFO L899 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2023-11-21 22:25:16,237 INFO L899 garLoopResultBuilder]: For program point L32(lines 32 52) no Hoare annotation was computed. [2023-11-21 22:25:16,237 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 98) no Hoare annotation was computed. [2023-11-21 22:25:16,238 INFO L899 garLoopResultBuilder]: For program point L24-1(lines 24 29) no Hoare annotation was computed. [2023-11-21 22:25:16,238 INFO L895 garLoopResultBuilder]: At program point L24-2(lines 24 29) the Hoare annotation is: (and (= (_ +zero 11 53) |ULTIMATE.start_ceil_double_~x#1|) (= ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_ceil~0) (= (_ +zero 11 53) |ULTIMATE.start_main_~x~0#1|) (= currentRoundingMode roundNearestTiesToEven)) [2023-11-21 22:25:16,238 INFO L899 garLoopResultBuilder]: For program point L24-3(lines 24 29) no Hoare annotation was computed. [2023-11-21 22:25:16,238 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-21 22:25:16,238 INFO L899 garLoopResultBuilder]: For program point L76(lines 76 81) no Hoare annotation was computed. [2023-11-21 22:25:16,241 INFO L895 garLoopResultBuilder]: At program point L76-1(lines 76 81) the Hoare annotation is: (and (= (_ +zero 11 53) |ULTIMATE.start_ceil_double_~x#1|) (= ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_ceil~0) (exists ((|v_skolemized_q#valueAsBitvector_4| (_ BitVec 64))) (and (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_4|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_4|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_4|))) (= (bvadd (_ bv1023 32) |ULTIMATE.start_ceil_double_~j0~0#1|) (bvand (bvashr ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_4|) (_ bv20 32)) (_ bv2047 32))))) (= (_ +zero 11 53) |ULTIMATE.start_main_~x~0#1|) (= currentRoundingMode roundNearestTiesToEven) (exists ((|v_skolemized_q#valueAsBitvector_6| (_ BitVec 64))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_6|)) |ULTIMATE.start_ceil_double_~x#1|) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_6|) |ULTIMATE.start_ceil_double_~i0~0#1|) (= ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_6|) |ULTIMATE.start_ceil_double_~i1~0#1|)))) [2023-11-21 22:25:16,242 INFO L899 garLoopResultBuilder]: For program point L76-2(lines 76 81) no Hoare annotation was computed. [2023-11-21 22:25:16,250 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-21 22:25:16,253 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:25:16,265 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~64 [2023-11-21 22:25:16,269 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~64 [2023-11-21 22:25:16,269 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-21 22:25:16,272 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~64 [2023-11-21 22:25:16,273 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_skolemized_q#valueAsBitvector_4 : bv64 :: ~Pluszero~64() == ~fp~64(v_skolemized_q#valueAsBitvector_4[63:63], v_skolemized_q#valueAsBitvector_4[62:52], v_skolemized_q#valueAsBitvector_4[51:0]) && ~bvadd~32(1023bv32, ~j0~0) == ~bvand~32(~bvashr~32(v_skolemized_q#valueAsBitvector_4[63:32], 20bv32), 2047bv32)) could not be translated [2023-11-21 22:25:16,273 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~64 [2023-11-21 22:25:16,273 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated [2023-11-21 22:25:16,274 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_skolemized_q#valueAsBitvector_6 : bv64 :: (~fp~64(v_skolemized_q#valueAsBitvector_6[63:63], v_skolemized_q#valueAsBitvector_6[62:52], v_skolemized_q#valueAsBitvector_6[51:0]) == ~x && v_skolemized_q#valueAsBitvector_6[63:32] == ~i0~0) && v_skolemized_q#valueAsBitvector_6[31:0] == ~i1~0) could not be translated [2023-11-21 22:25:16,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:25:16 BoogieIcfgContainer [2023-11-21 22:25:16,276 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:25:16,280 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:25:16,280 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:25:16,280 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:25:16,281 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:08" (3/4) ... [2023-11-21 22:25:16,283 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 22:25:16,299 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2023-11-21 22:25:16,299 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-21 22:25:16,300 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-21 22:25:16,300 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-21 22:25:16,422 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 22:25:16,423 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/witness.yml [2023-11-21 22:25:16,423 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:25:16,424 INFO L158 Benchmark]: Toolchain (without parser) took 10261.44ms. Allocated memory was 73.4MB in the beginning and 111.1MB in the end (delta: 37.7MB). Free memory was 49.3MB in the beginning and 80.5MB in the end (delta: -31.2MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2023-11-21 22:25:16,425 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 73.4MB. Free memory is still 48.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:25:16,425 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.46ms. Allocated memory is still 73.4MB. Free memory was 49.2MB in the beginning and 37.0MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 22:25:16,426 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.71ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 37.0MB in the beginning and 71.9MB in the end (delta: -34.9MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2023-11-21 22:25:16,426 INFO L158 Benchmark]: Boogie Preprocessor took 81.90ms. Allocated memory is still 92.3MB. Free memory was 71.9MB in the beginning and 69.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:25:16,427 INFO L158 Benchmark]: RCFGBuilder took 2091.39ms. Allocated memory is still 92.3MB. Free memory was 69.2MB in the beginning and 66.9MB in the end (delta: 2.3MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. [2023-11-21 22:25:16,427 INFO L158 Benchmark]: TraceAbstraction took 7461.14ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 66.1MB in the beginning and 85.6MB in the end (delta: -19.5MB). Peak memory consumption was 34.4MB. Max. memory is 16.1GB. [2023-11-21 22:25:16,428 INFO L158 Benchmark]: Witness Printer took 143.46ms. Allocated memory is still 111.1MB. Free memory was 85.6MB in the beginning and 80.5MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:25:16,431 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 73.4MB. Free memory is still 48.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 383.46ms. Allocated memory is still 73.4MB. Free memory was 49.2MB in the beginning and 37.0MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.71ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 37.0MB in the beginning and 71.9MB in the end (delta: -34.9MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.90ms. Allocated memory is still 92.3MB. Free memory was 71.9MB in the beginning and 69.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2091.39ms. Allocated memory is still 92.3MB. Free memory was 69.2MB in the beginning and 66.9MB in the end (delta: 2.3MB). Peak memory consumption was 25.1MB. Max. memory is 16.1GB. * TraceAbstraction took 7461.14ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 66.1MB in the beginning and 85.6MB in the end (delta: -19.5MB). Peak memory consumption was 34.4MB. Max. memory is 16.1GB. * Witness Printer took 143.46ms. Allocated memory is still 111.1MB. Free memory was 85.6MB in the beginning and 80.5MB in the end (delta: 5.0MB). 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: Missing case for function ~Pluszero~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_skolemized_q#valueAsBitvector_4 : bv64 :: ~Pluszero~64() == ~fp~64(v_skolemized_q#valueAsBitvector_4[63:63], v_skolemized_q#valueAsBitvector_4[62:52], v_skolemized_q#valueAsBitvector_4[51:0]) && ~bvadd~32(1023bv32, ~j0~0) == ~bvand~32(~bvashr~32(v_skolemized_q#valueAsBitvector_4[63:32], 20bv32), 2047bv32)) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~64 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression ~roundNearestTiesToEven could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_skolemized_q#valueAsBitvector_6 : bv64 :: (~fp~64(v_skolemized_q#valueAsBitvector_6[63:63], v_skolemized_q#valueAsBitvector_6[62:52], v_skolemized_q#valueAsBitvector_6[51:0]) == ~x && v_skolemized_q#valueAsBitvector_6[63:32] == ~i0~0) && v_skolemized_q#valueAsBitvector_6[31:0] == ~i1~0) 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: 98]: 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, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 16 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43 IncrementalHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 26 mSDtfsCounter, 43 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 15, 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 70 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 12 QuantifiedInterpolants, 374 SizeOfPredicates, 18 NumberOfNonLiveVariables, 117 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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: 24]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2023-11-21 22:25:16,490 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5187117d-77f0-411b-9af8-d712a76a41bd/bin/uautomizer-verify-bycVGegfSx/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