./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/erf_3_unsafe.c-amalgamation.i --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_e570339c-fa81-4517-8f2e-2d5b4d0a5060/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/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_e570339c-fa81-4517-8f2e-2d5b4d0a5060/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/erf_3_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/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_e570339c-fa81-4517-8f2e-2d5b4d0a5060/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 dd8ef7cc9982d34be0da9f6ee668a8699c6a3219a5bacf0be6ccfd8bf5194d2b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:23:59,208 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:23:59,322 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 22:23:59,333 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:23:59,334 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:23:59,373 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:23:59,375 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:23:59,375 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:23:59,377 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:23:59,382 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:23:59,382 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:23:59,384 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:23:59,385 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:23:59,386 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:23:59,387 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:23:59,388 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:23:59,388 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:23:59,389 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:23:59,389 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:23:59,390 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:23:59,390 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:23:59,391 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:23:59,392 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:23:59,392 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:23:59,393 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:23:59,393 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:23:59,393 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:23:59,394 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:23:59,395 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:23:59,396 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:23:59,397 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:23:59,397 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:23:59,398 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:23:59,398 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:23:59,398 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:23:59,399 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:23:59,399 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:23:59,399 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:23:59,400 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:23:59,400 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:23:59,400 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:23:59,401 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:23:59,401 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_e570339c-fa81-4517-8f2e-2d5b4d0a5060/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dd8ef7cc9982d34be0da9f6ee668a8699c6a3219a5bacf0be6ccfd8bf5194d2b [2023-11-21 22:23:59,703 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:23:59,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:23:59,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:23:59,733 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:23:59,733 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:23:59,735 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/neural-networks/erf_3_unsafe.c-amalgamation.i [2023-11-21 22:24:02,852 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:24:03,192 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:24:03,193 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/sv-benchmarks/c/neural-networks/erf_3_unsafe.c-amalgamation.i [2023-11-21 22:24:03,216 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/bin/uautomizer-verify-bycVGegfSx/data/994fa8460/842a719bc2b74cc3bfb1094119c32636/FLAGb935e0a9f [2023-11-21 22:24:03,238 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/bin/uautomizer-verify-bycVGegfSx/data/994fa8460/842a719bc2b74cc3bfb1094119c32636 [2023-11-21 22:24:03,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:24:03,243 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:24:03,245 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:24:03,245 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:24:03,251 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:24:03,255 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:24:03" (1/1) ... [2023-11-21 22:24:03,256 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44d038dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:03, skipping insertion in model container [2023-11-21 22:24:03,256 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:24:03" (1/1) ... [2023-11-21 22:24:03,333 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:24:03,600 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:24:04,192 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 22:24:04,197 WARN L1590 CHandler]: Possible shadowing of function y1 [2023-11-21 22:24:04,199 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_e570339c-fa81-4517-8f2e-2d5b4d0a5060/sv-benchmarks/c/neural-networks/erf_3_unsafe.c-amalgamation.i[63096,63109] [2023-11-21 22:24:04,204 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:24:04,214 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:24:04,233 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:24:04,259 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 22:24:04,260 WARN L1590 CHandler]: Possible shadowing of function y1 [2023-11-21 22:24:04,261 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_e570339c-fa81-4517-8f2e-2d5b4d0a5060/sv-benchmarks/c/neural-networks/erf_3_unsafe.c-amalgamation.i[63096,63109] [2023-11-21 22:24:04,262 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:24:04,439 WARN L675 CHandler]: The function __builtin_isnan is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:24:04,439 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:24:04,448 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:24:04,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:04 WrapperNode [2023-11-21 22:24:04,449 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:24:04,450 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:24:04,451 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:24:04,451 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:24:04,460 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:04" (1/1) ... [2023-11-21 22:24:04,482 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:04" (1/1) ... [2023-11-21 22:24:04,510 INFO L138 Inliner]: procedures = 559, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2023-11-21 22:24:04,510 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:24:04,511 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:24:04,512 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:24:04,512 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:24:04,522 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:04" (1/1) ... [2023-11-21 22:24:04,523 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:04" (1/1) ... [2023-11-21 22:24:04,525 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:04" (1/1) ... [2023-11-21 22:24:04,535 INFO L187 HeapSplitter]: Split 9 memory accesses to 2 slices as follows [2, 7] [2023-11-21 22:24:04,536 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:04" (1/1) ... [2023-11-21 22:24:04,536 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:04" (1/1) ... [2023-11-21 22:24:04,541 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:04" (1/1) ... [2023-11-21 22:24:04,543 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:04" (1/1) ... [2023-11-21 22:24:04,544 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:04" (1/1) ... [2023-11-21 22:24:04,545 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:04" (1/1) ... [2023-11-21 22:24:04,548 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:24:04,552 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:24:04,552 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:24:04,552 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:24:04,553 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:04" (1/1) ... [2023-11-21 22:24:04,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:24:04,579 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:04,597 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:04,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:24:04,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:24:04,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:24:04,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:24:04,638 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_isnan [2023-11-21 22:24:04,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:24:04,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 22:24:04,804 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:24:04,807 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:24:04,933 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:24:04,983 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:24:04,983 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:24:04,985 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:24:04 BoogieIcfgContainer [2023-11-21 22:24:04,985 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:24:04,987 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:24:04,988 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:24:04,991 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:24:04,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:24:03" (1/3) ... [2023-11-21 22:24:04,993 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7643c4e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:24:04, skipping insertion in model container [2023-11-21 22:24:04,993 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:04" (2/3) ... [2023-11-21 22:24:04,993 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7643c4e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:24:04, skipping insertion in model container [2023-11-21 22:24:04,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:24:04" (3/3) ... [2023-11-21 22:24:04,995 INFO L112 eAbstractionObserver]: Analyzing ICFG erf_3_unsafe.c-amalgamation.i [2023-11-21 22:24:05,016 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:24:05,017 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:24:05,069 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:24:05,078 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;@774c16b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:24:05,078 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:24:05,082 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 22:24:05,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 22:24:05,089 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:24:05,090 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 22:24:05,091 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:24:05,099 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:05,100 INFO L85 PathProgramCache]: Analyzing trace with hash 56123, now seen corresponding path program 1 times [2023-11-21 22:24:05,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:05,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769575200] [2023-11-21 22:24:05,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:05,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:24:05,218 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:24:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:24:05,267 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:24:05,269 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:24:05,271 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:24:05,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:24:05,280 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:24:05,285 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:24:05,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:24:05 BoogieIcfgContainer [2023-11-21 22:24:05,309 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:24:05,313 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:24:05,313 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:24:05,314 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:24:05,314 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:24:04" (3/4) ... [2023-11-21 22:24:05,317 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:24:05,318 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:24:05,320 INFO L158 Benchmark]: Toolchain (without parser) took 2076.32ms. Allocated memory was 140.5MB in the beginning and 176.2MB in the end (delta: 35.7MB). Free memory was 93.6MB in the beginning and 89.3MB in the end (delta: 4.3MB). Peak memory consumption was 43.2MB. Max. memory is 16.1GB. [2023-11-21 22:24:05,320 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 140.5MB. Free memory is still 114.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:24:05,322 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1204.89ms. Allocated memory was 140.5MB in the beginning and 176.2MB in the end (delta: 35.7MB). Free memory was 93.1MB in the beginning and 119.6MB in the end (delta: -26.5MB). Peak memory consumption was 43.2MB. Max. memory is 16.1GB. [2023-11-21 22:24:05,322 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.34ms. Allocated memory is still 176.2MB. Free memory was 119.6MB in the beginning and 116.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:24:05,329 INFO L158 Benchmark]: Boogie Preprocessor took 36.68ms. Allocated memory is still 176.2MB. Free memory was 116.5MB in the beginning and 114.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:24:05,331 INFO L158 Benchmark]: RCFGBuilder took 433.33ms. Allocated memory is still 176.2MB. Free memory was 114.5MB in the beginning and 103.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:24:05,332 INFO L158 Benchmark]: TraceAbstraction took 321.90ms. Allocated memory is still 176.2MB. Free memory was 101.9MB in the beginning and 89.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 22:24:05,332 INFO L158 Benchmark]: Witness Printer took 5.21ms. Allocated memory is still 176.2MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:24:05,342 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 140.5MB. Free memory is still 114.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1204.89ms. Allocated memory was 140.5MB in the beginning and 176.2MB in the end (delta: 35.7MB). Free memory was 93.1MB in the beginning and 119.6MB in the end (delta: -26.5MB). Peak memory consumption was 43.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.34ms. Allocated memory is still 176.2MB. Free memory was 119.6MB in the beginning and 116.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.68ms. Allocated memory is still 176.2MB. Free memory was 116.5MB in the beginning and 114.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 433.33ms. Allocated memory is still 176.2MB. Free memory was 114.5MB in the beginning and 103.0MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 321.90ms. Allocated memory is still 176.2MB. Free memory was 101.9MB in the beginning and 89.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 5.21ms. Allocated memory is still 176.2MB. Free memory is still 89.3MB. 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: 853]: 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 someBinaryFLOATComparisonOperation at line 853, overapproximation of someBinaryArithmeticFLOAToperation at line 848. Possible FailurePath: [L847] float x1 = __VERIFIER_nondet_float(); [L848] float x2 = x1 + 1e-2f; [L849] COND FALSE !(!(!__builtin_isnan (x1))) [L850] float y1 = erff(x1); [L851] float y2 = erff(x2); [L852] float derivative = (y2 - y1) / 1e-2f; [L853] COND TRUE !(__builtin_islessequal(derivative, 1.1283f)) [L853] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, 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, 0.0s 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 22:24:05,386 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/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_e570339c-fa81-4517-8f2e-2d5b4d0a5060/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/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_e570339c-fa81-4517-8f2e-2d5b4d0a5060/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/erf_3_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/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_e570339c-fa81-4517-8f2e-2d5b4d0a5060/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 dd8ef7cc9982d34be0da9f6ee668a8699c6a3219a5bacf0be6ccfd8bf5194d2b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:24:08,145 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:24:08,243 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-21 22:24:08,249 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:24:08,250 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:24:08,280 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:24:08,281 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:24:08,282 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:24:08,283 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:24:08,283 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:24:08,284 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:24:08,285 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:24:08,286 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:24:08,286 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:24:08,287 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:24:08,288 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:24:08,288 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:24:08,289 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:24:08,290 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:24:08,290 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:24:08,291 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:24:08,291 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:24:08,292 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:24:08,292 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:24:08,293 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:24:08,293 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:24:08,294 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:24:08,295 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:24:08,295 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:24:08,296 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:24:08,296 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:24:08,297 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:24:08,297 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:24:08,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:24:08,298 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:24:08,299 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:24:08,299 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:24:08,300 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:24:08,300 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:24:08,300 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:24:08,301 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:24:08,301 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:24:08,302 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:24:08,302 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:24:08,303 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:24:08,303 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_e570339c-fa81-4517-8f2e-2d5b4d0a5060/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dd8ef7cc9982d34be0da9f6ee668a8699c6a3219a5bacf0be6ccfd8bf5194d2b [2023-11-21 22:24:08,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:24:08,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:24:08,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:24:08,754 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:24:08,754 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:24:08,757 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/neural-networks/erf_3_unsafe.c-amalgamation.i [2023-11-21 22:24:11,861 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:24:12,259 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:24:12,260 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/sv-benchmarks/c/neural-networks/erf_3_unsafe.c-amalgamation.i [2023-11-21 22:24:12,292 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/bin/uautomizer-verify-bycVGegfSx/data/d84c69194/1a56b13661af48eca7cabd6beb726f6f/FLAG2770ca61d [2023-11-21 22:24:12,455 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/bin/uautomizer-verify-bycVGegfSx/data/d84c69194/1a56b13661af48eca7cabd6beb726f6f [2023-11-21 22:24:12,462 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:24:12,465 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:24:12,469 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:24:12,470 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:24:12,475 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:24:12,479 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:24:12" (1/1) ... [2023-11-21 22:24:12,480 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4baf11e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:12, skipping insertion in model container [2023-11-21 22:24:12,481 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:24:12" (1/1) ... [2023-11-21 22:24:12,567 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:24:12,848 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:24:13,643 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 22:24:13,645 WARN L1590 CHandler]: Possible shadowing of function y1 [2023-11-21 22:24:13,646 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_e570339c-fa81-4517-8f2e-2d5b4d0a5060/sv-benchmarks/c/neural-networks/erf_3_unsafe.c-amalgamation.i[63096,63109] [2023-11-21 22:24:13,651 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:24:13,665 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:24:13,686 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:24:13,710 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 22:24:13,711 WARN L1590 CHandler]: Possible shadowing of function y1 [2023-11-21 22:24:13,712 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_e570339c-fa81-4517-8f2e-2d5b4d0a5060/sv-benchmarks/c/neural-networks/erf_3_unsafe.c-amalgamation.i[63096,63109] [2023-11-21 22:24:13,713 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:24:13,850 WARN L675 CHandler]: The function __builtin_isnan is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:24:13,850 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:24:13,858 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:24:13,859 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:13 WrapperNode [2023-11-21 22:24:13,859 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:24:13,860 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:24:13,860 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:24:13,861 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:24:13,869 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:13" (1/1) ... [2023-11-21 22:24:13,897 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:13" (1/1) ... [2023-11-21 22:24:13,923 INFO L138 Inliner]: procedures = 560, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2023-11-21 22:24:13,924 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:24:13,925 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:24:13,925 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:24:13,925 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:24:13,937 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:13" (1/1) ... [2023-11-21 22:24:13,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:13" (1/1) ... [2023-11-21 22:24:13,941 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:13" (1/1) ... [2023-11-21 22:24:13,950 INFO L187 HeapSplitter]: Split 9 memory accesses to 2 slices as follows [2, 7] [2023-11-21 22:24:13,950 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:13" (1/1) ... [2023-11-21 22:24:13,951 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:13" (1/1) ... [2023-11-21 22:24:13,957 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:13" (1/1) ... [2023-11-21 22:24:13,959 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:13" (1/1) ... [2023-11-21 22:24:13,962 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:13" (1/1) ... [2023-11-21 22:24:13,963 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:13" (1/1) ... [2023-11-21 22:24:13,967 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:24:13,968 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:24:13,968 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:24:13,968 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:24:13,969 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:13" (1/1) ... [2023-11-21 22:24:13,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:24:13,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:24:14,001 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:24:14,019 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:24:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 22:24:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-21 22:24:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:24:14,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:24:14,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:24:14,041 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_isnan [2023-11-21 22:24:14,156 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:24:14,158 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:24:15,426 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:24:15,519 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:24:15,521 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:24:15,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:24:15 BoogieIcfgContainer [2023-11-21 22:24:15,525 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:24:15,528 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:24:15,530 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:24:15,534 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:24:15,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:24:12" (1/3) ... [2023-11-21 22:24:15,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507dfbab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:24:15, skipping insertion in model container [2023-11-21 22:24:15,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:24:13" (2/3) ... [2023-11-21 22:24:15,540 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@507dfbab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:24:15, skipping insertion in model container [2023-11-21 22:24:15,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:24:15" (3/3) ... [2023-11-21 22:24:15,541 INFO L112 eAbstractionObserver]: Analyzing ICFG erf_3_unsafe.c-amalgamation.i [2023-11-21 22:24:15,563 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:24:15,563 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:24:15,634 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:24:15,642 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;@1d042f16, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:24:15,642 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:24:15,647 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 22:24:15,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 22:24:15,655 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:24:15,656 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 22:24:15,657 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:24:15,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:15,669 INFO L85 PathProgramCache]: Analyzing trace with hash 56123, now seen corresponding path program 1 times [2023-11-21 22:24:15,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:24:15,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1572518542] [2023-11-21 22:24:15,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:15,684 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 22:24:15,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:24:15,689 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/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 22:24:15,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/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 22:24:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:24:16,045 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:24:16,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:24:16,298 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-21 22:24:16,300 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:24:16,301 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:24:16,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/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)] Ended with exit code 0 [2023-11-21 22:24:16,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/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 22:24:16,507 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:24:16,511 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:24:16,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:24:16 BoogieIcfgContainer [2023-11-21 22:24:16,531 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:24:16,531 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:24:16,532 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:24:16,532 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:24:16,532 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:24:15" (3/4) ... [2023-11-21 22:24:16,535 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:24:16,536 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:24:16,537 INFO L158 Benchmark]: Toolchain (without parser) took 4071.25ms. Allocated memory was 79.7MB in the beginning and 109.1MB in the end (delta: 29.4MB). Free memory was 53.7MB in the beginning and 70.1MB in the end (delta: -16.3MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2023-11-21 22:24:16,538 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 79.7MB. Free memory is still 55.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:24:16,539 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1390.07ms. Allocated memory was 79.7MB in the beginning and 109.1MB in the end (delta: 29.4MB). Free memory was 53.5MB in the beginning and 69.5MB in the end (delta: -16.0MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. [2023-11-21 22:24:16,539 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.77ms. Allocated memory is still 109.1MB. Free memory was 69.5MB in the beginning and 66.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-21 22:24:16,540 INFO L158 Benchmark]: Boogie Preprocessor took 42.69ms. Allocated memory is still 109.1MB. Free memory was 66.5MB in the beginning and 64.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:24:16,541 INFO L158 Benchmark]: RCFGBuilder took 1557.81ms. Allocated memory is still 109.1MB. Free memory was 64.4MB in the beginning and 83.2MB in the end (delta: -18.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 22:24:16,542 INFO L158 Benchmark]: TraceAbstraction took 1002.47ms. Allocated memory is still 109.1MB. Free memory was 82.6MB in the beginning and 70.1MB in the end (delta: 12.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 22:24:16,542 INFO L158 Benchmark]: Witness Printer took 4.39ms. Allocated memory is still 109.1MB. Free memory is still 70.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:24:16,546 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 79.7MB. Free memory is still 55.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1390.07ms. Allocated memory was 79.7MB in the beginning and 109.1MB in the end (delta: 29.4MB). Free memory was 53.5MB in the beginning and 69.5MB in the end (delta: -16.0MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.77ms. Allocated memory is still 109.1MB. Free memory was 69.5MB in the beginning and 66.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.69ms. Allocated memory is still 109.1MB. Free memory was 66.5MB in the beginning and 64.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1557.81ms. Allocated memory is still 109.1MB. Free memory was 64.4MB in the beginning and 83.2MB in the end (delta: -18.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1002.47ms. Allocated memory is still 109.1MB. Free memory was 82.6MB in the beginning and 70.1MB in the end (delta: 12.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 4.39ms. Allocated memory is still 109.1MB. Free memory is still 70.1MB. 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: 853]: 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 erff at line 850. Possible FailurePath: [L847] float x1 = __VERIFIER_nondet_float(); [L848] float x2 = x1 + 1e-2f; [L849] COND FALSE !(!(!__builtin_isnan (x1))) [L850] float y1 = erff(x1); [L851] float y2 = erff(x2); [L852] float derivative = (y2 - y1) / 1e-2f; VAL [derivative=2.0, x1=0.0, x2=0.009999999776482582, y1=-0.00962066650390625, y2=0.01037933211773634] [L853] COND TRUE !(__builtin_islessequal(derivative, 1.1283f)) VAL [derivative=2.0, x1=0.0, x2=0.009999999776482582, y1=-0.00962066650390625, y2=0.01037933211773634] [L853] reach_error() VAL [derivative=2.0, x1=0.0, x2=0.009999999776482582, y1=-0.00962066650390625, y2=0.01037933211773634] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, 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, 0.3s 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 22:24:16,589 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e570339c-fa81-4517-8f2e-2d5b4d0a5060/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample