./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/elu_2_safe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/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_09fe3d08-2812-4c26-a052-28eacbec61d7/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/elu_2_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/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_09fe3d08-2812-4c26-a052-28eacbec61d7/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 7ac858ebbd8bca202c7c51b1584dbd1a80ae03321948e4e4062b9804fe2c638e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:10:54,011 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:10:54,133 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 22:10:54,140 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:10:54,141 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:10:54,179 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:10:54,180 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:10:54,181 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:10:54,182 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:10:54,188 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:10:54,188 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:10:54,189 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:10:54,190 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:10:54,192 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:10:54,193 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:10:54,194 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:10:54,194 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:10:54,195 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:10:54,195 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:10:54,196 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:10:54,196 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:10:54,197 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:10:54,197 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:10:54,198 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:10:54,198 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:10:54,199 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:10:54,199 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:10:54,200 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:10:54,201 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:10:54,201 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:10:54,202 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:10:54,203 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:10:54,203 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:10:54,203 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:10:54,204 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:10:54,204 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:10:54,204 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:10:54,204 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:10:54,205 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:10:54,205 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:10:54,205 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:10:54,206 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:10:54,206 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_09fe3d08-2812-4c26-a052-28eacbec61d7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ac858ebbd8bca202c7c51b1584dbd1a80ae03321948e4e4062b9804fe2c638e [2023-11-21 22:10:54,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:10:54,596 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:10:54,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:10:54,601 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:10:54,601 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:10:54,603 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/neural-networks/elu_2_safe.c-amalgamation.i [2023-11-21 22:10:57,762 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:10:58,208 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:10:58,209 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/sv-benchmarks/c/neural-networks/elu_2_safe.c-amalgamation.i [2023-11-21 22:10:58,244 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/bin/uautomizer-verify-bycVGegfSx/data/3b5195d32/64f86f59142d4b759ebec3f12f560726/FLAG0360f3e00 [2023-11-21 22:10:58,258 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/bin/uautomizer-verify-bycVGegfSx/data/3b5195d32/64f86f59142d4b759ebec3f12f560726 [2023-11-21 22:10:58,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:10:58,262 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:10:58,264 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:10:58,264 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:10:58,270 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:10:58,271 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:10:58" (1/1) ... [2023-11-21 22:10:58,272 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46bce9e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:58, skipping insertion in model container [2023-11-21 22:10:58,272 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:10:58" (1/1) ... [2023-11-21 22:10:58,330 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:10:58,553 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:10:58,933 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 22:10:58,935 WARN L1590 CHandler]: Possible shadowing of function y1 [2023-11-21 22:10:58,936 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_09fe3d08-2812-4c26-a052-28eacbec61d7/sv-benchmarks/c/neural-networks/elu_2_safe.c-amalgamation.i[63118,63131] [2023-11-21 22:10:58,940 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:10:58,950 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:10:58,968 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:10:58,993 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 22:10:58,994 WARN L1590 CHandler]: Possible shadowing of function y1 [2023-11-21 22:10:58,995 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_09fe3d08-2812-4c26-a052-28eacbec61d7/sv-benchmarks/c/neural-networks/elu_2_safe.c-amalgamation.i[63118,63131] [2023-11-21 22:10:58,996 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:10:59,116 WARN L675 CHandler]: The function __builtin_isnan is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:10:59,117 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:10:59,125 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:10:59,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:59 WrapperNode [2023-11-21 22:10:59,126 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:10:59,127 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:10:59,127 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:10:59,127 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:10:59,136 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:59" (1/1) ... [2023-11-21 22:10:59,165 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:59" (1/1) ... [2023-11-21 22:10:59,194 INFO L138 Inliner]: procedures = 560, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2023-11-21 22:10:59,195 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:10:59,195 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:10:59,195 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:10:59,196 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:10:59,205 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:59" (1/1) ... [2023-11-21 22:10:59,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:59" (1/1) ... [2023-11-21 22:10:59,208 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:59" (1/1) ... [2023-11-21 22:10:59,217 INFO L187 HeapSplitter]: Split 9 memory accesses to 2 slices as follows [2, 7] [2023-11-21 22:10:59,218 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:59" (1/1) ... [2023-11-21 22:10:59,218 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:59" (1/1) ... [2023-11-21 22:10:59,223 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:59" (1/1) ... [2023-11-21 22:10:59,225 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:59" (1/1) ... [2023-11-21 22:10:59,226 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:59" (1/1) ... [2023-11-21 22:10:59,227 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:59" (1/1) ... [2023-11-21 22:10:59,229 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:10:59,230 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:10:59,231 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:10:59,231 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:10:59,232 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:59" (1/1) ... [2023-11-21 22:10:59,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:10:59,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:10:59,266 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:10:59,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:10:59,321 INFO L130 BoogieDeclarations]: Found specification of procedure elu [2023-11-21 22:10:59,321 INFO L138 BoogieDeclarations]: Found implementation of procedure elu [2023-11-21 22:10:59,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:10:59,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:10:59,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:10:59,322 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_isnan [2023-11-21 22:10:59,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:10:59,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 22:10:59,540 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:10:59,544 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:10:59,680 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:10:59,762 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:10:59,766 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:10:59,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:10:59 BoogieIcfgContainer [2023-11-21 22:10:59,769 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:10:59,771 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:10:59,771 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:10:59,775 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:10:59,776 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:10:58" (1/3) ... [2023-11-21 22:10:59,777 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d31501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:10:59, skipping insertion in model container [2023-11-21 22:10:59,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:10:59" (2/3) ... [2023-11-21 22:10:59,779 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65d31501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:10:59, skipping insertion in model container [2023-11-21 22:10:59,779 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:10:59" (3/3) ... [2023-11-21 22:10:59,781 INFO L112 eAbstractionObserver]: Analyzing ICFG elu_2_safe.c-amalgamation.i [2023-11-21 22:10:59,800 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:10:59,801 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:10:59,867 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:10:59,876 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;@792548cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:10:59,876 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:10:59,881 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:10:59,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 22:10:59,890 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:10:59,891 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:10:59,892 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:10:59,903 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:59,903 INFO L85 PathProgramCache]: Analyzing trace with hash 2089036942, now seen corresponding path program 1 times [2023-11-21 22:10:59,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:59,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782152351] [2023-11-21 22:10:59,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:59,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:11:00,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:11:00,021 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:11:00,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:11:00,060 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:11:00,062 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:11:00,064 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:11:00,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:11:00,083 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:11:00,089 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:11:00,106 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret91 could not be translated [2023-11-21 22:11:00,107 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret92 could not be translated [2023-11-21 22:11:00,119 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:11:00 BoogieIcfgContainer [2023-11-21 22:11:00,119 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:11:00,122 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:11:00,122 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:11:00,122 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:11:00,123 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:10:59" (3/4) ... [2023-11-21 22:11:00,125 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:11:00,126 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:11:00,127 INFO L158 Benchmark]: Toolchain (without parser) took 1864.42ms. Allocated memory is still 169.9MB. Free memory was 139.3MB in the beginning and 116.0MB in the end (delta: 23.4MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2023-11-21 22:11:00,128 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 130.0MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:11:00,128 INFO L158 Benchmark]: CACSL2BoogieTranslator took 862.36ms. Allocated memory is still 169.9MB. Free memory was 139.3MB in the beginning and 82.9MB in the end (delta: 56.4MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2023-11-21 22:11:00,130 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.77ms. Allocated memory is still 169.9MB. Free memory was 82.9MB in the beginning and 80.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:11:00,131 INFO L158 Benchmark]: Boogie Preprocessor took 34.40ms. Allocated memory is still 169.9MB. Free memory was 80.1MB in the beginning and 78.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:11:00,137 INFO L158 Benchmark]: RCFGBuilder took 538.59ms. Allocated memory is still 169.9MB. Free memory was 78.0MB in the beginning and 130.7MB in the end (delta: -52.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-21 22:11:00,139 INFO L158 Benchmark]: TraceAbstraction took 348.29ms. Allocated memory is still 169.9MB. Free memory was 129.6MB in the beginning and 116.0MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 22:11:00,140 INFO L158 Benchmark]: Witness Printer took 4.48ms. Allocated memory is still 169.9MB. Free memory is still 116.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:11:00,149 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 130.0MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 862.36ms. Allocated memory is still 169.9MB. Free memory was 139.3MB in the beginning and 82.9MB in the end (delta: 56.4MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.77ms. Allocated memory is still 169.9MB. Free memory was 82.9MB in the beginning and 80.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.40ms. Allocated memory is still 169.9MB. Free memory was 80.1MB in the beginning and 78.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 538.59ms. Allocated memory is still 169.9MB. Free memory was 78.0MB in the beginning and 130.7MB in the end (delta: -52.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 348.29ms. Allocated memory is still 169.9MB. Free memory was 129.6MB in the beginning and 116.0MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 4.48ms. Allocated memory is still 169.9MB. Free memory is still 116.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret91 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret92 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 859]: 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 859, overapproximation of someBinaryArithmeticFLOAToperation at line 855. Possible FailurePath: [L854] float x1 = __VERIFIER_nondet_float(); [L855] float x2 = x1 + 1e-5f; [L856] COND FALSE !(!(!__builtin_isnan (x1))) [L857] CALL, EXPR elu(x1) VAL [\old(x)=117] [L847] COND FALSE !(x >= 0.0f) [L850] return expm1f(x); [L857] RET, EXPR elu(x1) VAL [x1=117] [L857] float y1 = elu(x1); [L858] CALL, EXPR elu(x2) VAL [\old(x)=118] [L847] COND FALSE !(x >= 0.0f) [L850] return expm1f(x); [L858] RET, EXPR elu(x2) VAL [x1=117, x2=118, y1=117] [L858] float y2 = elu(x2); [L859] COND TRUE !(__builtin_islessequal(y1, y2)) VAL [x1=117, x2=118, y1=117, y2=118] [L859] reach_error() VAL [x1=117, x2=118, y1=117, y2=118] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 2, 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=12occurred 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, 11 NumberOfCodeBlocks, 11 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 22:11:00,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/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_09fe3d08-2812-4c26-a052-28eacbec61d7/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/neural-networks/elu_2_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/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_09fe3d08-2812-4c26-a052-28eacbec61d7/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 7ac858ebbd8bca202c7c51b1584dbd1a80ae03321948e4e4062b9804fe2c638e --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:11:02,813 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:11:02,941 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-21 22:11:02,949 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:11:02,951 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:11:02,998 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:11:02,999 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:11:02,999 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:11:03,000 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:11:03,006 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:11:03,007 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:11:03,007 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:11:03,008 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:11:03,010 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:11:03,010 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:11:03,011 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:11:03,012 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:11:03,012 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:11:03,012 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:11:03,014 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:11:03,014 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:11:03,015 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:11:03,015 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:11:03,015 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:11:03,016 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:11:03,016 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:11:03,017 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:11:03,017 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:11:03,018 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:11:03,018 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:11:03,020 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:11:03,020 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:11:03,020 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:11:03,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:11:03,021 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:11:03,021 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:11:03,022 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:11:03,022 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:11:03,023 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:11:03,023 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:11:03,023 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:11:03,023 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:11:03,024 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:11:03,024 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:11:03,024 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:11:03,025 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_09fe3d08-2812-4c26-a052-28eacbec61d7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7ac858ebbd8bca202c7c51b1584dbd1a80ae03321948e4e4062b9804fe2c638e [2023-11-21 22:11:03,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:11:03,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:11:03,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:11:03,493 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:11:03,493 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:11:03,496 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/neural-networks/elu_2_safe.c-amalgamation.i [2023-11-21 22:11:06,749 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:11:07,171 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:11:07,172 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/sv-benchmarks/c/neural-networks/elu_2_safe.c-amalgamation.i [2023-11-21 22:11:07,207 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/bin/uautomizer-verify-bycVGegfSx/data/de805b35c/13751d4406434b76a5d9732d568b721f/FLAG8bc6397d3 [2023-11-21 22:11:07,225 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/bin/uautomizer-verify-bycVGegfSx/data/de805b35c/13751d4406434b76a5d9732d568b721f [2023-11-21 22:11:07,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:11:07,230 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:11:07,231 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:11:07,231 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:11:07,245 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:11:07,246 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:11:07" (1/1) ... [2023-11-21 22:11:07,247 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a9a735d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:07, skipping insertion in model container [2023-11-21 22:11:07,248 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:11:07" (1/1) ... [2023-11-21 22:11:07,331 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:11:07,600 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:11:08,038 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 22:11:08,040 WARN L1590 CHandler]: Possible shadowing of function y1 [2023-11-21 22:11:08,041 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_09fe3d08-2812-4c26-a052-28eacbec61d7/sv-benchmarks/c/neural-networks/elu_2_safe.c-amalgamation.i[63118,63131] [2023-11-21 22:11:08,046 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:11:08,063 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:11:08,101 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 22:11:08,131 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 22:11:08,133 WARN L1590 CHandler]: Possible shadowing of function y1 [2023-11-21 22:11:08,133 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_09fe3d08-2812-4c26-a052-28eacbec61d7/sv-benchmarks/c/neural-networks/elu_2_safe.c-amalgamation.i[63118,63131] [2023-11-21 22:11:08,134 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:11:08,283 WARN L675 CHandler]: The function __builtin_isnan is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:11:08,283 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:11:08,290 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:11:08,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:08 WrapperNode [2023-11-21 22:11:08,291 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:11:08,292 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:11:08,292 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:11:08,293 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:11:08,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:08" (1/1) ... [2023-11-21 22:11:08,327 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:08" (1/1) ... [2023-11-21 22:11:08,352 INFO L138 Inliner]: procedures = 561, calls = 17, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 35 [2023-11-21 22:11:08,353 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:11:08,353 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:11:08,354 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:11:08,354 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:11:08,365 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:08" (1/1) ... [2023-11-21 22:11:08,365 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:08" (1/1) ... [2023-11-21 22:11:08,368 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:08" (1/1) ... [2023-11-21 22:11:08,378 INFO L187 HeapSplitter]: Split 9 memory accesses to 2 slices as follows [2, 7] [2023-11-21 22:11:08,378 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:08" (1/1) ... [2023-11-21 22:11:08,378 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:08" (1/1) ... [2023-11-21 22:11:08,385 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:08" (1/1) ... [2023-11-21 22:11:08,387 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:08" (1/1) ... [2023-11-21 22:11:08,389 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:08" (1/1) ... [2023-11-21 22:11:08,390 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:08" (1/1) ... [2023-11-21 22:11:08,394 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:11:08,395 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:11:08,395 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:11:08,395 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:11:08,396 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:08" (1/1) ... [2023-11-21 22:11:08,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:11:08,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:11:08,431 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:11:08,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:11:08,485 INFO L130 BoogieDeclarations]: Found specification of procedure elu [2023-11-21 22:11:08,486 INFO L138 BoogieDeclarations]: Found implementation of procedure elu [2023-11-21 22:11:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 22:11:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-21 22:11:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:11:08,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:11:08,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:11:08,487 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_isnan [2023-11-21 22:11:08,603 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:11:08,605 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:11:08,799 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:11:08,851 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:11:08,852 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:11:08,853 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:11:08 BoogieIcfgContainer [2023-11-21 22:11:08,853 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:11:08,856 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:11:08,856 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:11:08,859 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:11:08,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:11:07" (1/3) ... [2023-11-21 22:11:08,860 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4410f594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:11:08, skipping insertion in model container [2023-11-21 22:11:08,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:11:08" (2/3) ... [2023-11-21 22:11:08,861 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4410f594 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:11:08, skipping insertion in model container [2023-11-21 22:11:08,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:11:08" (3/3) ... [2023-11-21 22:11:08,862 INFO L112 eAbstractionObserver]: Analyzing ICFG elu_2_safe.c-amalgamation.i [2023-11-21 22:11:08,880 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:11:08,881 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:11:08,925 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:11:08,932 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;@4bfe4532, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:11:08,932 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:11:08,936 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-21 22:11:08,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-21 22:11:08,943 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:11:08,944 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:11:08,944 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:11:08,949 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:11:08,950 INFO L85 PathProgramCache]: Analyzing trace with hash 2089036942, now seen corresponding path program 1 times [2023-11-21 22:11:08,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:11:08,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [794280530] [2023-11-21 22:11:08,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:11:08,969 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 22:11:08,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:11:08,973 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/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 22:11:08,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/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 22:11:09,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:11:09,143 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:11:09,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:11:09,236 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2023-11-21 22:11:09,238 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:11:09,239 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:11:09,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/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 22:11:09,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/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 22:11:09,461 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:11:09,465 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:11:09,487 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret91 could not be translated [2023-11-21 22:11:09,490 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret92 could not be translated [2023-11-21 22:11:09,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:11:09 BoogieIcfgContainer [2023-11-21 22:11:09,505 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:11:09,507 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:11:09,508 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:11:09,508 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:11:09,509 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:11:08" (3/4) ... [2023-11-21 22:11:09,511 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:11:09,512 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:11:09,514 INFO L158 Benchmark]: Toolchain (without parser) took 2283.82ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 47.1MB in the beginning and 43.1MB in the end (delta: 3.9MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2023-11-21 22:11:09,515 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 73.4MB. Free memory is still 49.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:11:09,516 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1060.43ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 46.9MB in the beginning and 48.0MB in the end (delta: -1.1MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2023-11-21 22:11:09,522 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.71ms. Allocated memory is still 92.3MB. Free memory was 48.0MB in the beginning and 45.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:11:09,522 INFO L158 Benchmark]: Boogie Preprocessor took 40.60ms. Allocated memory is still 92.3MB. Free memory was 45.2MB in the beginning and 43.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:11:09,524 INFO L158 Benchmark]: RCFGBuilder took 458.98ms. Allocated memory is still 92.3MB. Free memory was 43.1MB in the beginning and 57.8MB in the end (delta: -14.7MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2023-11-21 22:11:09,525 INFO L158 Benchmark]: TraceAbstraction took 649.76ms. Allocated memory is still 92.3MB. Free memory was 56.9MB in the beginning and 43.4MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 22:11:09,525 INFO L158 Benchmark]: Witness Printer took 5.06ms. Allocated memory is still 92.3MB. Free memory was 43.4MB in the beginning and 43.1MB in the end (delta: 269.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:11:09,534 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 73.4MB. Free memory is still 49.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1060.43ms. Allocated memory was 73.4MB in the beginning and 92.3MB in the end (delta: 18.9MB). Free memory was 46.9MB in the beginning and 48.0MB in the end (delta: -1.1MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.71ms. Allocated memory is still 92.3MB. Free memory was 48.0MB in the beginning and 45.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.60ms. Allocated memory is still 92.3MB. Free memory was 45.2MB in the beginning and 43.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 458.98ms. Allocated memory is still 92.3MB. Free memory was 43.1MB in the beginning and 57.8MB in the end (delta: -14.7MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. * TraceAbstraction took 649.76ms. Allocated memory is still 92.3MB. Free memory was 56.9MB in the beginning and 43.4MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 5.06ms. Allocated memory is still 92.3MB. Free memory was 43.4MB in the beginning and 43.1MB in the end (delta: 269.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret91 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret92 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 859]: 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 expm1f at line 850. Possible FailurePath: [L854] float x1 = __VERIFIER_nondet_float(); [L855] float x2 = x1 + 1e-5f; [L856] COND FALSE !(!(!__builtin_isnan (x1))) [L857] CALL, EXPR elu(x1) VAL [\old(x)=-2.0] [L847] COND FALSE !(x >= 0.0f) [L850] return expm1f(x); [L857] RET, EXPR elu(x1) VAL [x1=-2.0, x2=-1.9999899864196777] [L857] float y1 = elu(x1); [L858] CALL, EXPR elu(x2) VAL [\old(x)=-1.9999899864196777] [L847] COND FALSE !(x >= 0.0f) [L850] return expm1f(x); [L858] RET, EXPR elu(x2) VAL [x1=-2.0, x2=-1.9999899864196777, y1=-2.0] [L858] float y2 = elu(x2); [L859] COND TRUE !(__builtin_islessequal(y1, y2)) VAL [x1=-2.0, x2=-1.9999899864196777, y1=-2.0, y2=-36893488147419103000] [L859] reach_error() VAL [x1=-2.0, x2=-1.9999899864196777, y1=-2.0, y2=-36893488147419103000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 2, 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=12occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 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 22:11:09,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_09fe3d08-2812-4c26-a052-28eacbec61d7/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