./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/erf_4_safe.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_d062302b-77f3-4642-9c77-d1487f5d03e4/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/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_d062302b-77f3-4642-9c77-d1487f5d03e4/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/erf_4_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/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_d062302b-77f3-4642-9c77-d1487f5d03e4/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 bd02ba5116a42a9bf9d513bc1b28679b1c8c1889009349ef9cf1f2a699bc7cf0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:25:19,079 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:25:19,180 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 22:25:19,195 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:25:19,196 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:25:19,235 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:25:19,236 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:25:19,237 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:25:19,238 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:25:19,243 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:25:19,244 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:25:19,244 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:25:19,245 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:25:19,246 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:25:19,247 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:25:19,247 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:25:19,248 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:25:19,248 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:25:19,248 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:25:19,249 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:25:19,249 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:25:19,250 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:25:19,250 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:25:19,251 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:25:19,251 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:25:19,251 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:25:19,252 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:25:19,253 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:25:19,253 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:25:19,253 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:25:19,255 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:25:19,255 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:25:19,255 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:25:19,256 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:25:19,256 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:25:19,256 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:25:19,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:25:19,271 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:25:19,271 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:25:19,272 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:25:19,272 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:25:19,273 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:25:19,273 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_d062302b-77f3-4642-9c77-d1487f5d03e4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd02ba5116a42a9bf9d513bc1b28679b1c8c1889009349ef9cf1f2a699bc7cf0 [2023-11-21 22:25:19,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:25:19,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:25:19,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:25:19,552 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:25:19,552 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:25:19,554 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/neural-networks/erf_4_safe.c-amalgamation.i [2023-11-21 22:25:22,589 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:25:22,960 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:25:22,965 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/sv-benchmarks/c/neural-networks/erf_4_safe.c-amalgamation.i [2023-11-21 22:25:22,990 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/bin/uautomizer-verify-bycVGegfSx/data/0ed11e4f3/9a3cb4a1d57a460b992cec892f9ca0ff/FLAG6a056d53f [2023-11-21 22:25:23,006 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/bin/uautomizer-verify-bycVGegfSx/data/0ed11e4f3/9a3cb4a1d57a460b992cec892f9ca0ff [2023-11-21 22:25:23,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:25:23,010 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:25:23,011 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:23,012 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:25:23,022 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:25:23,023 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:23" (1/1) ... [2023-11-21 22:25:23,024 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42d78400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:23, skipping insertion in model container [2023-11-21 22:25:23,024 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:23" (1/1) ... [2023-11-21 22:25:23,081 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:25:23,352 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:25:23,775 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 22:25:23,777 WARN L1590 CHandler]: Possible shadowing of function y1 [2023-11-21 22:25:23,778 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_d062302b-77f3-4642-9c77-d1487f5d03e4/sv-benchmarks/c/neural-networks/erf_4_safe.c-amalgamation.i[63096,63109] [2023-11-21 22:25:23,783 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:23,795 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:25:23,826 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:25:23,861 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 22:25:23,862 WARN L1590 CHandler]: Possible shadowing of function y1 [2023-11-21 22:25:23,864 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_d062302b-77f3-4642-9c77-d1487f5d03e4/sv-benchmarks/c/neural-networks/erf_4_safe.c-amalgamation.i[63096,63109] [2023-11-21 22:25:23,865 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:24,016 WARN L675 CHandler]: The function __builtin_isnan is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:24,016 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:24,025 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:25:24,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:24 WrapperNode [2023-11-21 22:25:24,025 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:24,027 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:25:24,027 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:25:24,027 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:25:24,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:24" (1/1) ... [2023-11-21 22:25:24,055 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:24" (1/1) ... [2023-11-21 22:25:24,087 INFO L138 Inliner]: procedures = 559, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2023-11-21 22:25:24,087 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:25:24,088 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:25:24,088 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:25:24,088 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:25:24,099 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:24" (1/1) ... [2023-11-21 22:25:24,099 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:24" (1/1) ... [2023-11-21 22:25:24,102 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:24" (1/1) ... [2023-11-21 22:25:24,111 INFO L187 HeapSplitter]: Split 9 memory accesses to 2 slices as follows [2, 7] [2023-11-21 22:25:24,111 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:24" (1/1) ... [2023-11-21 22:25:24,111 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:24" (1/1) ... [2023-11-21 22:25:24,116 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:24" (1/1) ... [2023-11-21 22:25:24,117 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:24" (1/1) ... [2023-11-21 22:25:24,119 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:24" (1/1) ... [2023-11-21 22:25:24,120 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:24" (1/1) ... [2023-11-21 22:25:24,122 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:25:24,123 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:25:24,123 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:25:24,123 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:25:24,124 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:24" (1/1) ... [2023-11-21 22:25:24,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:25:24,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:24,155 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:24,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:25:24,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:25:24,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:25:24,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:25:24,198 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_isnan [2023-11-21 22:25:24,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:25:24,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 22:25:24,341 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:25:24,342 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:25:24,409 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:25:24,473 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:25:24,473 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:25:24,475 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:24 BoogieIcfgContainer [2023-11-21 22:25:24,475 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:25:24,477 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:25:24,477 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:25:24,481 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:25:24,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:25:23" (1/3) ... [2023-11-21 22:25:24,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1684375a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:25:24, skipping insertion in model container [2023-11-21 22:25:24,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:24" (2/3) ... [2023-11-21 22:25:24,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1684375a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:25:24, skipping insertion in model container [2023-11-21 22:25:24,483 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:24" (3/3) ... [2023-11-21 22:25:24,484 INFO L112 eAbstractionObserver]: Analyzing ICFG erf_4_safe.c-amalgamation.i [2023-11-21 22:25:24,504 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:25:24,505 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:25:24,570 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:25:24,576 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;@6014b59c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:25:24,577 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:25:24,581 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 22:25:24,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 22:25:24,587 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:24,587 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 22:25:24,588 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:25:24,593 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:24,594 INFO L85 PathProgramCache]: Analyzing trace with hash 56123, now seen corresponding path program 1 times [2023-11-21 22:25:24,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:25:24,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797862382] [2023-11-21 22:25:24,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:24,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:25:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:25:24,689 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:25:24,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:25:24,719 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:25:24,721 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:25:24,722 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:25:24,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:25:24,730 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:25:24,738 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:25:24,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:25:24 BoogieIcfgContainer [2023-11-21 22:25:24,755 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:25:24,758 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:25:24,758 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:25:24,758 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:25:24,759 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:24" (3/4) ... [2023-11-21 22:25:24,760 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:25:24,761 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:25:24,762 INFO L158 Benchmark]: Toolchain (without parser) took 1752.27ms. Allocated memory is still 130.0MB. Free memory was 92.7MB in the beginning and 51.0MB in the end (delta: 41.8MB). Peak memory consumption was 43.3MB. Max. memory is 16.1GB. [2023-11-21 22:25:24,762 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 130.0MB. Free memory is still 102.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:25:24,763 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1014.44ms. Allocated memory is still 130.0MB. Free memory was 92.7MB in the beginning and 80.9MB in the end (delta: 11.8MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. [2023-11-21 22:25:24,764 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.05ms. Allocated memory is still 130.0MB. Free memory was 80.9MB in the beginning and 78.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:25:24,764 INFO L158 Benchmark]: Boogie Preprocessor took 33.94ms. Allocated memory is still 130.0MB. Free memory was 78.2MB in the beginning and 76.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:25:24,765 INFO L158 Benchmark]: RCFGBuilder took 352.32ms. Allocated memory is still 130.0MB. Free memory was 76.1MB in the beginning and 64.7MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 22:25:24,770 INFO L158 Benchmark]: TraceAbstraction took 278.12ms. Allocated memory is still 130.0MB. Free memory was 64.1MB in the beginning and 51.6MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 22:25:24,770 INFO L158 Benchmark]: Witness Printer took 3.76ms. Allocated memory is still 130.0MB. Free memory was 51.6MB in the beginning and 51.0MB in the end (delta: 589.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:25:24,774 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 130.0MB. Free memory is still 102.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1014.44ms. Allocated memory is still 130.0MB. Free memory was 92.7MB in the beginning and 80.9MB in the end (delta: 11.8MB). Peak memory consumption was 47.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.05ms. Allocated memory is still 130.0MB. Free memory was 80.9MB in the beginning and 78.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.94ms. Allocated memory is still 130.0MB. Free memory was 78.2MB in the beginning and 76.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 352.32ms. Allocated memory is still 130.0MB. Free memory was 76.1MB in the beginning and 64.7MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 278.12ms. Allocated memory is still 130.0MB. Free memory was 64.1MB in the beginning and 51.6MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 3.76ms. Allocated memory is still 130.0MB. Free memory was 51.6MB in the beginning and 51.0MB in the end (delta: 589.5kB). 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_isgreaterequal(derivative, 0.0f)) [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 22:25:24,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/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 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_d062302b-77f3-4642-9c77-d1487f5d03e4/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/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_d062302b-77f3-4642-9c77-d1487f5d03e4/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/erf_4_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/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_d062302b-77f3-4642-9c77-d1487f5d03e4/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 bd02ba5116a42a9bf9d513bc1b28679b1c8c1889009349ef9cf1f2a699bc7cf0 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:25:27,503 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:25:27,606 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-21 22:25:27,616 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:25:27,617 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:25:27,646 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:25:27,647 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:25:27,647 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:25:27,648 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:25:27,649 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:25:27,649 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:25:27,650 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:25:27,651 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:25:27,652 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:25:27,652 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:25:27,653 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:25:27,654 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:25:27,654 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:25:27,655 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:25:27,655 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:25:27,656 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:25:27,657 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:25:27,657 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:25:27,658 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:25:27,658 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:25:27,659 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:25:27,659 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:25:27,660 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:25:27,660 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:25:27,661 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:25:27,661 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:25:27,662 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:25:27,662 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:25:27,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:25:27,663 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:25:27,664 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:25:27,664 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:25:27,664 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:25:27,664 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:25:27,665 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:25:27,665 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:25:27,666 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:25:27,666 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:25:27,666 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:25:27,666 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:25:27,667 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_d062302b-77f3-4642-9c77-d1487f5d03e4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd02ba5116a42a9bf9d513bc1b28679b1c8c1889009349ef9cf1f2a699bc7cf0 [2023-11-21 22:25:28,071 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:25:28,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:25:28,104 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:25:28,105 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:25:28,109 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:25:28,111 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/neural-networks/erf_4_safe.c-amalgamation.i [2023-11-21 22:25:31,119 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:25:31,506 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:25:31,507 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/sv-benchmarks/c/neural-networks/erf_4_safe.c-amalgamation.i [2023-11-21 22:25:31,538 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/bin/uautomizer-verify-bycVGegfSx/data/8d5386010/26de403230814638a18770425c2cbe96/FLAG4b0b18ef0 [2023-11-21 22:25:31,559 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/bin/uautomizer-verify-bycVGegfSx/data/8d5386010/26de403230814638a18770425c2cbe96 [2023-11-21 22:25:31,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:25:31,569 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:25:31,573 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:31,573 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:25:31,579 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:25:31,580 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:31" (1/1) ... [2023-11-21 22:25:31,581 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@330862ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:31, skipping insertion in model container [2023-11-21 22:25:31,581 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:25:31" (1/1) ... [2023-11-21 22:25:31,684 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:25:31,913 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:25:32,329 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 22:25:32,331 WARN L1590 CHandler]: Possible shadowing of function y1 [2023-11-21 22:25:32,333 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_d062302b-77f3-4642-9c77-d1487f5d03e4/sv-benchmarks/c/neural-networks/erf_4_safe.c-amalgamation.i[63096,63109] [2023-11-21 22:25:32,337 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:32,356 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:25:32,375 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:25:32,397 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 22:25:32,398 WARN L1590 CHandler]: Possible shadowing of function y1 [2023-11-21 22:25:32,399 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_d062302b-77f3-4642-9c77-d1487f5d03e4/sv-benchmarks/c/neural-networks/erf_4_safe.c-amalgamation.i[63096,63109] [2023-11-21 22:25:32,400 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:25:32,531 WARN L675 CHandler]: The function __builtin_isnan is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:32,531 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:25:32,539 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:25:32,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:32 WrapperNode [2023-11-21 22:25:32,539 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:25:32,541 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:25:32,541 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:25:32,541 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:25:32,549 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:32" (1/1) ... [2023-11-21 22:25:32,612 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:32" (1/1) ... [2023-11-21 22:25:32,649 INFO L138 Inliner]: procedures = 560, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2023-11-21 22:25:32,650 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:25:32,651 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:25:32,651 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:25:32,651 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:25:32,663 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:32" (1/1) ... [2023-11-21 22:25:32,663 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:32" (1/1) ... [2023-11-21 22:25:32,686 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:32" (1/1) ... [2023-11-21 22:25:32,695 INFO L187 HeapSplitter]: Split 9 memory accesses to 2 slices as follows [2, 7] [2023-11-21 22:25:32,697 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:32" (1/1) ... [2023-11-21 22:25:32,697 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:32" (1/1) ... [2023-11-21 22:25:32,704 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:32" (1/1) ... [2023-11-21 22:25:32,706 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:32" (1/1) ... [2023-11-21 22:25:32,708 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:32" (1/1) ... [2023-11-21 22:25:32,710 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:32" (1/1) ... [2023-11-21 22:25:32,714 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:25:32,715 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:25:32,715 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:25:32,715 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:25:32,716 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:32" (1/1) ... [2023-11-21 22:25:32,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:25:32,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:25:32,749 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:25:32,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:25:32,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 22:25:32,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-21 22:25:32,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:25:32,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:25:32,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:25:32,799 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_isnan [2023-11-21 22:25:32,946 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:25:32,948 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:25:33,630 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:25:33,716 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:25:33,716 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:25:33,718 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:33 BoogieIcfgContainer [2023-11-21 22:25:33,718 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:25:33,720 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:25:33,720 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:25:33,723 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:25:33,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:25:31" (1/3) ... [2023-11-21 22:25:33,724 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@646a1926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:25:33, skipping insertion in model container [2023-11-21 22:25:33,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:25:32" (2/3) ... [2023-11-21 22:25:33,725 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@646a1926 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:25:33, skipping insertion in model container [2023-11-21 22:25:33,725 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:33" (3/3) ... [2023-11-21 22:25:33,727 INFO L112 eAbstractionObserver]: Analyzing ICFG erf_4_safe.c-amalgamation.i [2023-11-21 22:25:33,746 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:25:33,746 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:25:33,795 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:25:33,802 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;@39d5a10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:25:33,803 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:25:33,807 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 22:25:33,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 22:25:33,821 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:25:33,822 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 22:25:33,823 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:25:33,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:25:33,831 INFO L85 PathProgramCache]: Analyzing trace with hash 56123, now seen corresponding path program 1 times [2023-11-21 22:25:33,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:25:33,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [95920390] [2023-11-21 22:25:33,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:25:33,846 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:25:33,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:25:33,849 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-21 22:25:33,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-21 22:25:34,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:25:34,467 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:25:34,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:25:34,907 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-21 22:25:34,909 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:25:34,910 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:25:34,918 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-21 22:25:35,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/bin/uautomizer-verify-bycVGegfSx/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-21 22:25:35,116 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:25:35,121 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:25:35,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:25:35 BoogieIcfgContainer [2023-11-21 22:25:35,147 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:25:35,152 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:25:35,152 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:25:35,153 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:25:35,153 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:25:33" (3/4) ... [2023-11-21 22:25:35,155 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:25:35,157 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:25:35,158 INFO L158 Benchmark]: Toolchain (without parser) took 3588.79ms. Allocated memory is still 86.0MB. Free memory was 59.6MB in the beginning and 39.4MB in the end (delta: 20.1MB). Peak memory consumption was 22.4MB. Max. memory is 16.1GB. [2023-11-21 22:25:35,159 INFO L158 Benchmark]: CDTParser took 0.81ms. Allocated memory is still 65.0MB. Free memory is still 40.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:25:35,161 INFO L158 Benchmark]: CACSL2BoogieTranslator took 967.08ms. Allocated memory is still 86.0MB. Free memory was 59.4MB in the beginning and 45.1MB in the end (delta: 14.3MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2023-11-21 22:25:35,161 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.57ms. Allocated memory is still 86.0MB. Free memory was 45.1MB in the beginning and 42.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:25:35,169 INFO L158 Benchmark]: Boogie Preprocessor took 62.99ms. Allocated memory is still 86.0MB. Free memory was 42.2MB in the beginning and 40.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:25:35,171 INFO L158 Benchmark]: RCFGBuilder took 1003.44ms. Allocated memory is still 86.0MB. Free memory was 40.1MB in the beginning and 52.5MB in the end (delta: -12.3MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. [2023-11-21 22:25:35,172 INFO L158 Benchmark]: TraceAbstraction took 1428.31ms. Allocated memory is still 86.0MB. Free memory was 51.6MB in the beginning and 39.4MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 22:25:35,172 INFO L158 Benchmark]: Witness Printer took 6.05ms. Allocated memory is still 86.0MB. Free memory is still 39.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:25:35,177 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81ms. Allocated memory is still 65.0MB. Free memory is still 40.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 967.08ms. Allocated memory is still 86.0MB. Free memory was 59.4MB in the beginning and 45.1MB in the end (delta: 14.3MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.57ms. Allocated memory is still 86.0MB. Free memory was 45.1MB in the beginning and 42.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.99ms. Allocated memory is still 86.0MB. Free memory was 42.2MB in the beginning and 40.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1003.44ms. Allocated memory is still 86.0MB. Free memory was 40.1MB in the beginning and 52.5MB in the end (delta: -12.3MB). Peak memory consumption was 8.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1428.31ms. Allocated memory is still 86.0MB. Free memory was 51.6MB in the beginning and 39.4MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 6.05ms. Allocated memory is still 86.0MB. Free memory is still 39.4MB. 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=NaN, x1=-2305843558969507800, x2=-2305843558969507800, y1=NaN, y2=-0.000000000000007049916206369744] [L853] COND TRUE !(__builtin_isgreaterequal(derivative, 0.0f)) VAL [derivative=NaN, x1=-2305843558969507800, x2=-2305843558969507800, y1=NaN, y2=-0.000000000000007049916206369744] [L853] reach_error() VAL [derivative=NaN, x1=-2305843558969507800, x2=-2305843558969507800, y1=NaN, y2=-0.000000000000007049916206369744] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, 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, 0.5s 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 22:25:35,224 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d062302b-77f3-4642-9c77-d1487f5d03e4/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample