./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/cast_union_loose.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/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_eebfec94-e76b-4f44-baf6-4718267b4295/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_loose.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/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_eebfec94-e76b-4f44-baf6-4718267b4295/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 cad01e5fd5f490cad060ffa4545639c9a981c8333c1ed6f02c3073a3418f2324 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:03:17,074 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:03:17,194 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 21:03:17,202 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:03:17,203 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:03:17,241 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:03:17,242 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:03:17,243 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:03:17,244 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 21:03:17,248 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 21:03:17,249 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 21:03:17,250 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 21:03:17,250 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:03:17,252 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:03:17,253 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:03:17,253 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:03:17,254 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 21:03:17,254 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 21:03:17,255 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 21:03:17,255 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 21:03:17,256 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:03:17,258 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 21:03:17,258 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 21:03:17,259 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 21:03:17,259 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 21:03:17,259 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:03:17,260 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:03:17,261 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:03:17,261 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:03:17,262 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 21:03:17,263 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 21:03:17,263 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:03:17,264 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:03:17,264 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 21:03:17,264 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 21:03:17,265 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 21:03:17,265 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 21:03:17,265 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 21:03:17,266 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 21:03:17,266 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 21:03:17,266 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 21:03:17,267 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 21:03:17,267 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_eebfec94-e76b-4f44-baf6-4718267b4295/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cad01e5fd5f490cad060ffa4545639c9a981c8333c1ed6f02c3073a3418f2324 [2023-11-21 21:03:17,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:03:17,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:03:17,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:03:17,657 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:03:17,658 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:03:17,659 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/float-benchs/cast_union_loose.c [2023-11-21 21:03:20,737 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:03:21,023 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:03:21,023 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/sv-benchmarks/c/float-benchs/cast_union_loose.c [2023-11-21 21:03:21,032 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/bin/uautomizer-verify-bycVGegfSx/data/e8955c65e/28e74489ce774a92a63043573f938ed3/FLAG3bba5ecee [2023-11-21 21:03:21,047 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/bin/uautomizer-verify-bycVGegfSx/data/e8955c65e/28e74489ce774a92a63043573f938ed3 [2023-11-21 21:03:21,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:03:21,051 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:03:21,053 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:03:21,053 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:03:21,060 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:03:21,061 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:03:21" (1/1) ... [2023-11-21 21:03:21,062 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62664ef5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:21, skipping insertion in model container [2023-11-21 21:03:21,062 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:03:21" (1/1) ... [2023-11-21 21:03:21,084 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:03:21,242 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_eebfec94-e76b-4f44-baf6-4718267b4295/sv-benchmarks/c/float-benchs/cast_union_loose.c[582,595] [2023-11-21 21:03:21,262 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:03:21,273 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:03:21,287 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_eebfec94-e76b-4f44-baf6-4718267b4295/sv-benchmarks/c/float-benchs/cast_union_loose.c[582,595] [2023-11-21 21:03:21,296 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:03:21,313 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:03:21,314 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:21 WrapperNode [2023-11-21 21:03:21,314 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:03:21,315 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:03:21,319 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:03:21,319 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:03:21,329 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:21" (1/1) ... [2023-11-21 21:03:21,343 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:21" (1/1) ... [2023-11-21 21:03:21,365 INFO L138 Inliner]: procedures = 18, calls = 24, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 70 [2023-11-21 21:03:21,366 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:03:21,366 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:03:21,367 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:03:21,367 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:03:21,380 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:21" (1/1) ... [2023-11-21 21:03:21,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:21" (1/1) ... [2023-11-21 21:03:21,383 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:21" (1/1) ... [2023-11-21 21:03:21,396 INFO L187 HeapSplitter]: Split 10 memory accesses to 3 slices as follows [2, 5, 3] [2023-11-21 21:03:21,396 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:21" (1/1) ... [2023-11-21 21:03:21,397 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:21" (1/1) ... [2023-11-21 21:03:21,408 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:21" (1/1) ... [2023-11-21 21:03:21,410 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:21" (1/1) ... [2023-11-21 21:03:21,412 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:21" (1/1) ... [2023-11-21 21:03:21,414 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:21" (1/1) ... [2023-11-21 21:03:21,417 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:03:21,418 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:03:21,418 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:03:21,418 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:03:21,419 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:21" (1/1) ... [2023-11-21 21:03:21,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:03:21,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:03:21,465 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 21:03:21,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 21:03:21,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:03:21,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 21:03:21,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 21:03:21,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 21:03:21,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 21:03:21,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-11-21 21:03:21,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-11-21 21:03:21,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-11-21 21:03:21,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 21:03:21,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 21:03:21,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 21:03:21,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:03:21,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:03:21,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 21:03:21,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 21:03:21,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-21 21:03:21,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 21:03:21,655 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:03:21,661 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:03:21,847 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:03:21,995 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:03:21,995 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 21:03:21,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:03:21 BoogieIcfgContainer [2023-11-21 21:03:21,997 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:03:22,000 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 21:03:22,001 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 21:03:22,004 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 21:03:22,005 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:03:21" (1/3) ... [2023-11-21 21:03:22,006 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6db5a7c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:03:22, skipping insertion in model container [2023-11-21 21:03:22,006 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:21" (2/3) ... [2023-11-21 21:03:22,006 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6db5a7c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:03:22, skipping insertion in model container [2023-11-21 21:03:22,007 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:03:21" (3/3) ... [2023-11-21 21:03:22,008 INFO L112 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2023-11-21 21:03:22,030 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 21:03:22,030 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 21:03:22,111 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:03:22,119 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;@24bb1c36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:03:22,119 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 21:03:22,124 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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 21:03:22,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 21:03:22,130 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:03:22,131 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 21:03:22,132 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:03:22,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:03:22,138 INFO L85 PathProgramCache]: Analyzing trace with hash 84601, now seen corresponding path program 1 times [2023-11-21 21:03:22,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:03:22,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147989626] [2023-11-21 21:03:22,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:22,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:03:22,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:03:22,309 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:03:22,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:03:22,385 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 21:03:22,388 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 21:03:22,390 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 21:03:22,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 21:03:22,398 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 21:03:22,410 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 21:03:22,440 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:03:22 BoogieIcfgContainer [2023-11-21 21:03:22,440 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 21:03:22,444 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 21:03:22,444 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 21:03:22,445 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 21:03:22,445 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:03:21" (3/4) ... [2023-11-21 21:03:22,447 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 21:03:22,449 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 21:03:22,450 INFO L158 Benchmark]: Toolchain (without parser) took 1398.79ms. Allocated memory is still 134.2MB. Free memory was 98.1MB in the beginning and 88.1MB in the end (delta: 10.1MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2023-11-21 21:03:22,451 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 134.2MB. Free memory is still 109.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:03:22,451 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.91ms. Allocated memory is still 134.2MB. Free memory was 97.8MB in the beginning and 86.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 21:03:22,453 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.49ms. Allocated memory is still 134.2MB. Free memory was 86.8MB in the beginning and 85.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:03:22,454 INFO L158 Benchmark]: Boogie Preprocessor took 50.61ms. Allocated memory is still 134.2MB. Free memory was 85.2MB in the beginning and 83.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 21:03:22,459 INFO L158 Benchmark]: RCFGBuilder took 579.63ms. Allocated memory is still 134.2MB. Free memory was 83.1MB in the beginning and 60.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-21 21:03:22,460 INFO L158 Benchmark]: TraceAbstraction took 439.68ms. Allocated memory is still 134.2MB. Free memory was 59.3MB in the beginning and 88.7MB in the end (delta: -29.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:03:22,462 INFO L158 Benchmark]: Witness Printer took 4.67ms. Allocated memory is still 134.2MB. Free memory was 88.7MB in the beginning and 88.1MB in the end (delta: 603.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:03:22,470 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 134.2MB. Free memory is still 109.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 261.91ms. Allocated memory is still 134.2MB. Free memory was 97.8MB in the beginning and 86.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.49ms. Allocated memory is still 134.2MB. Free memory was 86.8MB in the beginning and 85.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.61ms. Allocated memory is still 134.2MB. Free memory was 85.2MB in the beginning and 83.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 579.63ms. Allocated memory is still 134.2MB. Free memory was 83.1MB in the beginning and 60.0MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 439.68ms. Allocated memory is still 134.2MB. Free memory was 59.3MB in the beginning and 88.7MB in the end (delta: -29.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.67ms. Allocated memory is still 134.2MB. Free memory was 88.7MB in the beginning and 88.1MB in the end (delta: 603.6kB). 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: 13]: 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 bitwiseOr at line 26, overapproximation of someBinaryArithmeticDOUBLEoperation at line 27, overapproximation of someBinaryDOUBLEComparisonOperation at line 39. Possible FailurePath: [L32] int a; [L33] double r; [L35] a = __VERIFIER_nondet_int() [L36] CALL assume_abort_if_not(a >= -10000 && a <= 10000) [L11] COND FALSE !(!cond) [L36] RET assume_abort_if_not(a >= -10000 && a <= 10000) [L38] CALL, EXPR cast(a) [L22] union u x, y; [L23] x.i[0] = 0x43300000 [L24] EXPR x.i[0] [L24] y.i[0] = x.i[0] [L25] x.i[1] = 0x80000000 [L26] EXPR x.i[1] [L26] EXPR i ^ x.i[1] [L26] y.i[1] = i ^ x.i[1] [L27] EXPR y.d [L27] EXPR x.d [L27] return y.d - x.d; [L27] return y.d - x.d; [L27] return y.d - x.d; [L38] RET, EXPR cast(a) [L38] r = cast(a) [L39] CALL __VERIFIER_assert(r >= -10000. && r <= 10000.) [L13] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L13] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 21:03:22,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/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_eebfec94-e76b-4f44-baf6-4718267b4295/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/cast_union_loose.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/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_eebfec94-e76b-4f44-baf6-4718267b4295/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 cad01e5fd5f490cad060ffa4545639c9a981c8333c1ed6f02c3073a3418f2324 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 21:03:25,234 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 21:03:25,389 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-21 21:03:25,399 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 21:03:25,399 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 21:03:25,446 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 21:03:25,447 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 21:03:25,447 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 21:03:25,449 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 21:03:25,454 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 21:03:25,454 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 21:03:25,455 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 21:03:25,456 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 21:03:25,458 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 21:03:25,458 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 21:03:25,460 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 21:03:25,460 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 21:03:25,460 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 21:03:25,461 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 21:03:25,462 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 21:03:25,462 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 21:03:25,463 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 21:03:25,463 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 21:03:25,464 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 21:03:25,464 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 21:03:25,465 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 21:03:25,465 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 21:03:25,465 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 21:03:25,466 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 21:03:25,466 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 21:03:25,468 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 21:03:25,468 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 21:03:25,468 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 21:03:25,469 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:03:25,469 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 21:03:25,469 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 21:03:25,470 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 21:03:25,471 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 21:03:25,471 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 21:03:25,471 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 21:03:25,471 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 21:03:25,472 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 21:03:25,472 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 21:03:25,472 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 21:03:25,473 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 21:03:25,473 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_eebfec94-e76b-4f44-baf6-4718267b4295/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cad01e5fd5f490cad060ffa4545639c9a981c8333c1ed6f02c3073a3418f2324 [2023-11-21 21:03:25,897 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 21:03:25,930 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 21:03:25,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 21:03:25,935 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 21:03:25,936 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 21:03:25,938 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/float-benchs/cast_union_loose.c [2023-11-21 21:03:29,037 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 21:03:29,314 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 21:03:29,315 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/sv-benchmarks/c/float-benchs/cast_union_loose.c [2023-11-21 21:03:29,327 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/bin/uautomizer-verify-bycVGegfSx/data/5a217044a/0c49591b962b4a1980bc767133d5537f/FLAGdffb1c746 [2023-11-21 21:03:29,344 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/bin/uautomizer-verify-bycVGegfSx/data/5a217044a/0c49591b962b4a1980bc767133d5537f [2023-11-21 21:03:29,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 21:03:29,348 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 21:03:29,349 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 21:03:29,349 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 21:03:29,355 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 21:03:29,356 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:03:29" (1/1) ... [2023-11-21 21:03:29,357 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36e5e7d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:29, skipping insertion in model container [2023-11-21 21:03:29,357 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:03:29" (1/1) ... [2023-11-21 21:03:29,380 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 21:03:29,571 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_eebfec94-e76b-4f44-baf6-4718267b4295/sv-benchmarks/c/float-benchs/cast_union_loose.c[582,595] [2023-11-21 21:03:29,596 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:03:29,615 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 21:03:29,631 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_eebfec94-e76b-4f44-baf6-4718267b4295/sv-benchmarks/c/float-benchs/cast_union_loose.c[582,595] [2023-11-21 21:03:29,659 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 21:03:29,689 INFO L206 MainTranslator]: Completed translation [2023-11-21 21:03:29,690 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:29 WrapperNode [2023-11-21 21:03:29,690 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 21:03:29,691 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 21:03:29,691 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 21:03:29,692 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 21:03:29,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:29" (1/1) ... [2023-11-21 21:03:29,724 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:29" (1/1) ... [2023-11-21 21:03:29,753 INFO L138 Inliner]: procedures = 21, calls = 24, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2023-11-21 21:03:29,753 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 21:03:29,755 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 21:03:29,755 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 21:03:29,755 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 21:03:29,796 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:29" (1/1) ... [2023-11-21 21:03:29,797 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:29" (1/1) ... [2023-11-21 21:03:29,800 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:29" (1/1) ... [2023-11-21 21:03:29,835 INFO L187 HeapSplitter]: Split 10 memory accesses to 3 slices as follows [2, 3, 5] [2023-11-21 21:03:29,835 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:29" (1/1) ... [2023-11-21 21:03:29,836 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:29" (1/1) ... [2023-11-21 21:03:29,860 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:29" (1/1) ... [2023-11-21 21:03:29,862 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:29" (1/1) ... [2023-11-21 21:03:29,865 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:29" (1/1) ... [2023-11-21 21:03:29,867 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:29" (1/1) ... [2023-11-21 21:03:29,870 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 21:03:29,871 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 21:03:29,872 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 21:03:29,872 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 21:03:29,873 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:29" (1/1) ... [2023-11-21 21:03:29,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 21:03:29,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 21:03:29,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 21:03:29,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 21:03:29,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 21:03:29,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2023-11-21 21:03:29,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2023-11-21 21:03:29,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2023-11-21 21:03:29,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 21:03:29,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-21 21:03:29,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-21 21:03:29,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 21:03:29,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-21 21:03:29,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-21 21:03:29,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-21 21:03:29,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 21:03:29,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 21:03:29,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 21:03:29,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-21 21:03:29,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-21 21:03:29,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-21 21:03:30,108 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 21:03:30,111 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 21:03:30,581 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 21:03:30,650 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 21:03:30,650 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 21:03:30,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:03:30 BoogieIcfgContainer [2023-11-21 21:03:30,670 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 21:03:30,673 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 21:03:30,673 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 21:03:30,677 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 21:03:30,677 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 09:03:29" (1/3) ... [2023-11-21 21:03:30,678 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a29ff34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:03:30, skipping insertion in model container [2023-11-21 21:03:30,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:03:29" (2/3) ... [2023-11-21 21:03:30,679 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a29ff34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 09:03:30, skipping insertion in model container [2023-11-21 21:03:30,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:03:30" (3/3) ... [2023-11-21 21:03:30,682 INFO L112 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2023-11-21 21:03:30,705 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 21:03:30,706 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 21:03:30,764 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 21:03:30,771 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;@61aafd00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 21:03:30,772 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 21:03:30,777 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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 21:03:30,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 21:03:30,784 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:03:30,785 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 21:03:30,785 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:03:30,793 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:03:30,793 INFO L85 PathProgramCache]: Analyzing trace with hash 60993, now seen corresponding path program 1 times [2023-11-21 21:03:30,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 21:03:30,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1569125654] [2023-11-21 21:03:30,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:03:30,811 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 21:03:30,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 21:03:30,813 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/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 21:03:30,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/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 21:03:31,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:03:31,007 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 21:03:31,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 21:03:31,147 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-21 21:03:31,150 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 21:03:31,151 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 21:03:31,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/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 21:03:31,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/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 21:03:31,359 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 21:03:31,364 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 21:03:31,392 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 09:03:31 BoogieIcfgContainer [2023-11-21 21:03:31,394 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 21:03:31,397 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 21:03:31,397 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 21:03:31,397 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 21:03:31,398 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:03:30" (3/4) ... [2023-11-21 21:03:31,399 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-21 21:03:31,466 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/bin/uautomizer-verify-bycVGegfSx/witness.graphml [2023-11-21 21:03:31,472 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 21:03:31,474 INFO L158 Benchmark]: Toolchain (without parser) took 2125.76ms. Allocated memory was 73.4MB in the beginning and 96.5MB in the end (delta: 23.1MB). Free memory was 49.6MB in the beginning and 58.4MB in the end (delta: -8.9MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2023-11-21 21:03:31,474 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 73.4MB. Free memory is still 48.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:03:31,475 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.08ms. Allocated memory is still 73.4MB. Free memory was 49.4MB in the beginning and 37.9MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 21:03:31,476 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.54ms. Allocated memory is still 73.4MB. Free memory was 37.7MB in the beginning and 36.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:03:31,476 INFO L158 Benchmark]: Boogie Preprocessor took 115.57ms. Allocated memory is still 73.4MB. Free memory was 36.1MB in the beginning and 51.8MB in the end (delta: -15.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 21:03:31,477 INFO L158 Benchmark]: RCFGBuilder took 798.95ms. Allocated memory was 73.4MB in the beginning and 96.5MB in the end (delta: 23.1MB). Free memory was 51.8MB in the beginning and 74.6MB in the end (delta: -22.9MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2023-11-21 21:03:31,478 INFO L158 Benchmark]: TraceAbstraction took 720.95ms. Allocated memory is still 96.5MB. Free memory was 74.2MB in the beginning and 60.1MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-21 21:03:31,481 INFO L158 Benchmark]: Witness Printer took 75.86ms. Allocated memory is still 96.5MB. Free memory was 60.1MB in the beginning and 58.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 21:03:31,484 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 73.4MB. Free memory is still 48.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.08ms. Allocated memory is still 73.4MB. Free memory was 49.4MB in the beginning and 37.9MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.54ms. Allocated memory is still 73.4MB. Free memory was 37.7MB in the beginning and 36.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 115.57ms. Allocated memory is still 73.4MB. Free memory was 36.1MB in the beginning and 51.8MB in the end (delta: -15.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 798.95ms. Allocated memory was 73.4MB in the beginning and 96.5MB in the end (delta: 23.1MB). Free memory was 51.8MB in the beginning and 74.6MB in the end (delta: -22.9MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. * TraceAbstraction took 720.95ms. Allocated memory is still 96.5MB. Free memory was 74.2MB in the beginning and 60.1MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 75.86ms. Allocated memory is still 96.5MB. Free memory was 60.1MB in the beginning and 58.4MB in the end (delta: 1.7MB). 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 - CounterExampleResult [Line: 13]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L32] int a; [L33] double r; [L35] a = __VERIFIER_nondet_int() [L36] CALL assume_abort_if_not(a >= -10000 && a <= 10000) [L11] COND FALSE !(!cond) [L36] RET assume_abort_if_not(a >= -10000 && a <= 10000) [L38] CALL, EXPR cast(a) [L22] union u x, y; [L23] x.i[0] = 0x43300000 [L24] EXPR x.i[0] [L24] y.i[0] = x.i[0] [L25] x.i[1] = 0x80000000 [L26] EXPR x.i[1] [L26] y.i[1] = i ^ x.i[1] [L27] EXPR y.d [L27] EXPR x.d [L27] return y.d - x.d; [L27] return y.d - x.d; [L27] return y.d - x.d; [L38] RET, EXPR cast(a) [L38] r = cast(a) [L39] CALL __VERIFIER_assert(r >= -10000. && r <= 10000.) [L13] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L13] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 proved your program to be incorrect! [2023-11-21 21:03:31,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eebfec94-e76b-4f44-baf6-4718267b4295/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE