./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/gelu_5_unsafe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/gelu_5_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fbb6873ba4945c8dd3780b8069a037a2639bdaa2c1d8c0c1f28f334e79a0c028 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:21:40,683 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:21:40,792 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:21:40,802 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:21:40,803 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:21:40,852 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:21:40,853 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:21:40,853 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:21:40,855 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:21:40,860 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:21:40,860 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:21:40,861 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:21:40,862 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:21:40,864 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:21:40,864 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:21:40,865 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:21:40,865 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:21:40,866 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:21:40,866 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:21:40,867 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:21:40,867 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:21:40,868 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:21:40,869 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:21:40,870 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:21:40,870 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:21:40,871 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:21:40,872 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:21:40,872 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:21:40,873 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:21:40,873 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:21:40,875 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:21:40,875 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:21:40,875 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:21:40,876 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:21:40,876 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:21:40,876 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:21:40,877 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:21:40,877 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:21:40,878 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:21:40,878 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:21:40,878 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:21:40,879 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:21:40,879 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:21:40,879 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:21:40,880 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:21:40,881 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:21:40,881 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:21:40,881 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbb6873ba4945c8dd3780b8069a037a2639bdaa2c1d8c0c1f28f334e79a0c028 [2023-11-23 21:21:41,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:21:41,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:21:41,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:21:41,192 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:21:41,192 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:21:41,194 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/neural-networks/gelu_5_unsafe.c-amalgamation.i [2023-11-23 21:21:44,411 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:21:44,736 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:21:44,737 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/sv-benchmarks/c/neural-networks/gelu_5_unsafe.c-amalgamation.i [2023-11-23 21:21:44,758 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/data/fe4da2aef/1334c0f0686f49ee8ebe5762a657ff35/FLAG67c984f00 [2023-11-23 21:21:44,772 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/data/fe4da2aef/1334c0f0686f49ee8ebe5762a657ff35 [2023-11-23 21:21:44,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:21:44,776 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:21:44,778 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:21:44,778 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:21:44,784 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:21:44,785 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:21:44" (1/1) ... [2023-11-23 21:21:44,786 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76b2399e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:44, skipping insertion in model container [2023-11-23 21:21:44,786 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:21:44" (1/1) ... [2023-11-23 21:21:44,838 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:21:45,080 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 21:21:45,783 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-23 21:21:45,784 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isinf_sign [2023-11-23 21:21:45,786 WARN L1590 CHandler]: Possible shadowing of function y1 [2023-11-23 21:21:45,788 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_a57d827f-4a43-44c5-b818-10c59f11a9db/sv-benchmarks/c/neural-networks/gelu_5_unsafe.c-amalgamation.i[63274,63287] [2023-11-23 21:21:45,793 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:21:45,808 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:21:45,834 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 21:21:45,861 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-23 21:21:45,862 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isinf_sign [2023-11-23 21:21:45,864 WARN L1590 CHandler]: Possible shadowing of function y1 [2023-11-23 21:21:45,865 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_a57d827f-4a43-44c5-b818-10c59f11a9db/sv-benchmarks/c/neural-networks/gelu_5_unsafe.c-amalgamation.i[63274,63287] [2023-11-23 21:21:45,866 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:21:46,052 WARN L675 CHandler]: The function __builtin_isnan is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:46,052 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:46,052 WARN L675 CHandler]: The function __builtin_isinf_sign is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:46,062 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:21:46,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:46 WrapperNode [2023-11-23 21:21:46,063 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:21:46,064 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:21:46,064 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:21:46,065 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:21:46,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:46" (1/1) ... [2023-11-23 21:21:46,097 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:46" (1/1) ... [2023-11-23 21:21:46,126 INFO L138 Inliner]: procedures = 561, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 45 [2023-11-23 21:21:46,127 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:21:46,128 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:21:46,128 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:21:46,128 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:21:46,139 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:46" (1/1) ... [2023-11-23 21:21:46,140 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:46" (1/1) ... [2023-11-23 21:21:46,143 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:46" (1/1) ... [2023-11-23 21:21:46,143 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:46" (1/1) ... [2023-11-23 21:21:46,149 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:46" (1/1) ... [2023-11-23 21:21:46,151 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:46" (1/1) ... [2023-11-23 21:21:46,153 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:46" (1/1) ... [2023-11-23 21:21:46,154 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:46" (1/1) ... [2023-11-23 21:21:46,156 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:21:46,158 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:21:46,158 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:21:46,158 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:21:46,159 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:46" (1/1) ... [2023-11-23 21:21:46,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:21:46,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:21:46,210 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:21:46,232 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:21:46,261 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_isinf_sign [2023-11-23 21:21:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:21:46,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:21:46,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:21:46,263 INFO L130 BoogieDeclarations]: Found specification of procedure gelu [2023-11-23 21:21:46,263 INFO L138 BoogieDeclarations]: Found implementation of procedure gelu [2023-11-23 21:21:46,263 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_isnan [2023-11-23 21:21:46,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:21:46,402 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:21:46,404 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:21:46,521 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:21:46,590 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:21:46,591 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:21:46,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:21:46 BoogieIcfgContainer [2023-11-23 21:21:46,593 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:21:46,596 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:21:46,596 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:21:46,600 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:21:46,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:21:44" (1/3) ... [2023-11-23 21:21:46,601 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765a78f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:21:46, skipping insertion in model container [2023-11-23 21:21:46,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:46" (2/3) ... [2023-11-23 21:21:46,602 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@765a78f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:21:46, skipping insertion in model container [2023-11-23 21:21:46,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:21:46" (3/3) ... [2023-11-23 21:21:46,604 INFO L112 eAbstractionObserver]: Analyzing ICFG gelu_5_unsafe.c-amalgamation.i [2023-11-23 21:21:46,623 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:21:46,623 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:21:46,674 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:21:46,685 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=FINITE_AUTOMATA, 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;@21fe7bba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:21:46,689 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:21:46,698 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) [2023-11-23 21:21:46,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-23 21:21:46,711 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:21:46,712 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:21:46,713 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:21:46,724 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:21:46,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1279774098, now seen corresponding path program 1 times [2023-11-23 21:21:46,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:21:46,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744773250] [2023-11-23 21:21:46,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:21:46,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:21:46,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:21:46,872 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:21:46,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:21:46,917 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-23 21:21:46,919 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:21:46,920 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:21:46,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:21:46,926 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-23 21:21:46,930 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:21:46,944 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret93 could not be translated [2023-11-23 21:21:46,945 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret94 could not be translated [2023-11-23 21:21:46,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:21:46 BoogieIcfgContainer [2023-11-23 21:21:46,955 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:21:46,955 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:21:46,955 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:21:46,956 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:21:46,956 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:21:46" (3/4) ... [2023-11-23 21:21:46,959 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:21:46,960 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:21:46,962 INFO L158 Benchmark]: Toolchain (without parser) took 2185.20ms. Allocated memory was 130.0MB in the beginning and 176.2MB in the end (delta: 46.1MB). Free memory was 88.9MB in the beginning and 83.3MB in the end (delta: 5.6MB). Peak memory consumption was 52.9MB. Max. memory is 16.1GB. [2023-11-23 21:21:46,962 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 130.0MB. Free memory is still 77.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:21:46,963 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1285.41ms. Allocated memory was 130.0MB in the beginning and 176.2MB in the end (delta: 46.1MB). Free memory was 88.5MB in the beginning and 115.8MB in the end (delta: -27.3MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. [2023-11-23 21:21:46,964 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.05ms. Allocated memory is still 176.2MB. Free memory was 115.8MB in the beginning and 112.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:21:46,964 INFO L158 Benchmark]: Boogie Preprocessor took 29.14ms. Allocated memory is still 176.2MB. Free memory was 112.6MB in the beginning and 111.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:21:46,965 INFO L158 Benchmark]: RCFGBuilder took 435.68ms. Allocated memory is still 176.2MB. Free memory was 111.6MB in the beginning and 99.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 21:21:46,966 INFO L158 Benchmark]: TraceAbstraction took 358.89ms. Allocated memory is still 176.2MB. Free memory was 97.9MB in the beginning and 84.3MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 21:21:46,966 INFO L158 Benchmark]: Witness Printer took 5.24ms. Allocated memory is still 176.2MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:21:46,970 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 130.0MB. Free memory is still 77.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1285.41ms. Allocated memory was 130.0MB in the beginning and 176.2MB in the end (delta: 46.1MB). Free memory was 88.5MB in the beginning and 115.8MB in the end (delta: -27.3MB). Peak memory consumption was 40.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.05ms. Allocated memory is still 176.2MB. Free memory was 115.8MB in the beginning and 112.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.14ms. Allocated memory is still 176.2MB. Free memory was 112.6MB in the beginning and 111.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 435.68ms. Allocated memory is still 176.2MB. Free memory was 111.6MB in the beginning and 99.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 358.89ms. Allocated memory is still 176.2MB. Free memory was 97.9MB in the beginning and 84.3MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 5.24ms. Allocated memory is still 176.2MB. Free memory is still 83.3MB. 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~ret93 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret94 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: 858]: 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 858, overapproximation of someBinaryArithmeticFLOAToperation at line 857. Possible FailurePath: [L852] float x1 = __VERIFIER_nondet_float(); [L853] float x2 = x1 + 1e-5f; [L854] EXPR !__builtin_isnan (x1) && !__builtin_isinf_sign (x1) [L854] EXPR !__builtin_isnan (x1) && !__builtin_isinf_sign (x1) [L854] COND FALSE !(!(!__builtin_isnan (x1) && !__builtin_isinf_sign (x1))) [L855] CALL, EXPR gelu(x1) VAL [\old(x)=119] [L847] float cdf = 0.5f * erff(x / 1.41421356237309504880168872420969807856967187537694807317667973799f) + 0.5f; [L848] return x * cdf; [L855] RET, EXPR gelu(x1) VAL [x1=119] [L855] float y1 = gelu(x1); [L856] CALL, EXPR gelu(x2) VAL [\old(x)=117] [L847] float cdf = 0.5f * erff(x / 1.41421356237309504880168872420969807856967187537694807317667973799f) + 0.5f; [L848] return x * cdf; [L856] RET, EXPR gelu(x2) VAL [x1=119, x2=117, y1=116] [L856] float y2 = gelu(x2); [L857] float derivative = (y2 - y1) / 1e-5f; VAL [x1=119, x2=117, y1=116, y2=118] [L858] COND TRUE !(__builtin_isgreaterequal(derivative, 0.0f)) VAL [x1=119, x2=117, y1=116, y2=118] [L858] reach_error() VAL [x1=119, x2=117, y1=116, y2=118] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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 [2023-11-23 21:21:47,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/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_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/gelu_5_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fbb6873ba4945c8dd3780b8069a037a2639bdaa2c1d8c0c1f28f334e79a0c028 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:21:49,780 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:21:49,922 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-23 21:21:49,931 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:21:49,932 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:21:49,976 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:21:49,977 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:21:49,978 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:21:49,980 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:21:49,985 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:21:49,986 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:21:49,987 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:21:49,987 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:21:49,989 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:21:49,990 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:21:49,990 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:21:49,992 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:21:49,992 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:21:49,993 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:21:49,994 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:21:49,994 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:21:49,995 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:21:49,996 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:21:49,996 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:21:49,997 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 21:21:49,997 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 21:21:49,998 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 21:21:49,998 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:21:49,999 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:21:49,999 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:21:50,001 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:21:50,002 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 21:21:50,002 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:21:50,003 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:21:50,003 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:21:50,003 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:21:50,004 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:21:50,004 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:21:50,005 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-23 21:21:50,006 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 21:21:50,006 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:21:50,007 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:21:50,007 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:21:50,007 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:21:50,008 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbb6873ba4945c8dd3780b8069a037a2639bdaa2c1d8c0c1f28f334e79a0c028 [2023-11-23 21:21:50,482 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:21:50,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:21:50,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:21:50,520 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:21:50,521 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:21:50,522 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/neural-networks/gelu_5_unsafe.c-amalgamation.i [2023-11-23 21:21:53,662 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:21:54,100 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:21:54,100 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/sv-benchmarks/c/neural-networks/gelu_5_unsafe.c-amalgamation.i [2023-11-23 21:21:54,121 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/data/3e5f9aa8d/bb771b22e41142fba6ff3c3dd99bd560/FLAG6d51b1339 [2023-11-23 21:21:54,140 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/data/3e5f9aa8d/bb771b22e41142fba6ff3c3dd99bd560 [2023-11-23 21:21:54,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:21:54,147 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:21:54,150 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:21:54,150 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:21:54,156 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:21:54,157 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:54,158 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ed7839b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:54, skipping insertion in model container [2023-11-23 21:21:54,158 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:21:54" (1/1) ... [2023-11-23 21:21:54,231 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:21:54,543 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 21:21:55,107 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-23 21:21:55,107 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isinf_sign [2023-11-23 21:21:55,109 WARN L1590 CHandler]: Possible shadowing of function y1 [2023-11-23 21:21:55,110 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_a57d827f-4a43-44c5-b818-10c59f11a9db/sv-benchmarks/c/neural-networks/gelu_5_unsafe.c-amalgamation.i[63274,63287] [2023-11-23 21:21:55,115 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:21:55,130 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:21:55,151 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-23 21:21:55,217 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-23 21:21:55,218 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isinf_sign [2023-11-23 21:21:55,219 WARN L1590 CHandler]: Possible shadowing of function y1 [2023-11-23 21:21:55,219 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_a57d827f-4a43-44c5-b818-10c59f11a9db/sv-benchmarks/c/neural-networks/gelu_5_unsafe.c-amalgamation.i[63274,63287] [2023-11-23 21:21:55,228 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:21:55,390 WARN L675 CHandler]: The function __builtin_isnan is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:55,390 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:55,390 WARN L675 CHandler]: The function __builtin_isinf_sign is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:21:55,398 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:21:55,398 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:55 WrapperNode [2023-11-23 21:21:55,398 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:21:55,399 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:21:55,399 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:21:55,400 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:21:55,408 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:55" (1/1) ... [2023-11-23 21:21:55,438 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:55" (1/1) ... [2023-11-23 21:21:55,466 INFO L138 Inliner]: procedures = 562, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 44 [2023-11-23 21:21:55,466 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:21:55,467 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:21:55,467 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:21:55,467 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:21:55,477 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:55" (1/1) ... [2023-11-23 21:21:55,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:55" (1/1) ... [2023-11-23 21:21:55,482 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:55" (1/1) ... [2023-11-23 21:21:55,482 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:55" (1/1) ... [2023-11-23 21:21:55,503 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:55" (1/1) ... [2023-11-23 21:21:55,513 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:55" (1/1) ... [2023-11-23 21:21:55,516 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:55" (1/1) ... [2023-11-23 21:21:55,527 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:55" (1/1) ... [2023-11-23 21:21:55,531 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:21:55,532 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:21:55,532 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:21:55,533 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:21:55,533 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:55" (1/1) ... [2023-11-23 21:21:55,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:21:55,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:21:55,590 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:21:55,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:21:55,633 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_isinf_sign [2023-11-23 21:21:55,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-23 21:21:55,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:21:55,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:21:55,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:21:55,635 INFO L130 BoogieDeclarations]: Found specification of procedure gelu [2023-11-23 21:21:55,635 INFO L138 BoogieDeclarations]: Found implementation of procedure gelu [2023-11-23 21:21:55,636 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_isnan [2023-11-23 21:21:55,775 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:21:55,780 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:21:57,411 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:21:57,448 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:21:57,448 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:21:57,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:21:57 BoogieIcfgContainer [2023-11-23 21:21:57,449 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:21:57,452 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:21:57,452 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:21:57,456 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:21:57,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:21:54" (1/3) ... [2023-11-23 21:21:57,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76f598c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:21:57, skipping insertion in model container [2023-11-23 21:21:57,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:21:55" (2/3) ... [2023-11-23 21:21:57,458 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76f598c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:21:57, skipping insertion in model container [2023-11-23 21:21:57,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:21:57" (3/3) ... [2023-11-23 21:21:57,460 INFO L112 eAbstractionObserver]: Analyzing ICFG gelu_5_unsafe.c-amalgamation.i [2023-11-23 21:21:57,481 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:21:57,481 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:21:57,538 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:21:57,545 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=FINITE_AUTOMATA, 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;@5f3d05c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:21:57,545 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:21:57,549 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) [2023-11-23 21:21:57,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 21:21:57,557 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:21:57,558 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:21:57,559 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:21:57,564 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:21:57,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1433153613, now seen corresponding path program 1 times [2023-11-23 21:21:57,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:21:57,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [792840059] [2023-11-23 21:21:57,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:21:57,581 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 [2023-11-23 21:21:57,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:21:57,584 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:21:57,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:21:58,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:21:58,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 21:21:58,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:21:58,161 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 21:21:58,162 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:21:58,162 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2023-11-23 21:21:58,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [792840059] [2023-11-23 21:21:58,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [792840059] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:21:58,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:21:58,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 21:21:58,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368294437] [2023-11-23 21:21:58,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:21:58,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 21:21:58,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2023-11-23 21:21:58,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 21:21:58,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:21:58,209 INFO L87 Difference]: Start difference. First operand has 14 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 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) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:21:59,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:21:59,070 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2023-11-23 21:21:59,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 21:21:59,074 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2023-11-23 21:21:59,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:21:59,081 INFO L225 Difference]: With dead ends: 25 [2023-11-23 21:21:59,081 INFO L226 Difference]: Without dead ends: 12 [2023-11-23 21:21:59,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 21:21:59,089 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 21:21:59,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 21:21:59,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2023-11-23 21:21:59,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2023-11-23 21:21:59,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 8 states have (on average 1.125) 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) [2023-11-23 21:21:59,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2023-11-23 21:21:59,129 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 13 [2023-11-23 21:21:59,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:21:59,129 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2023-11-23 21:21:59,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:21:59,130 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2023-11-23 21:21:59,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-23 21:21:59,132 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:21:59,132 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:21:59,151 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-23 21:21:59,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:21:59,346 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:21:59,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:21:59,347 INFO L85 PathProgramCache]: Analyzing trace with hash -732089035, now seen corresponding path program 1 times [2023-11-23 21:21:59,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-23 21:21:59,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [903307074] [2023-11-23 21:21:59,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:21:59,350 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 [2023-11-23 21:21:59,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/mathsat [2023-11-23 21:21:59,352 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/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) [2023-11-23 21:21:59,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-23 21:22:00,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:22:00,194 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 21:22:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 21:22:01,283 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-23 21:22:01,285 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 21:22:01,287 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:22:01,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:22:01,491 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/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 [2023-11-23 21:22:01,494 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-23 21:22:01,498 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:22:01,524 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret91 could not be translated [2023-11-23 21:22:01,525 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short92 could not be translated [2023-11-23 21:22:01,525 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret90 could not be translated [2023-11-23 21:22:01,526 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret93 could not be translated [2023-11-23 21:22:01,527 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret94 could not be translated [2023-11-23 21:22:01,537 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:22:01 BoogieIcfgContainer [2023-11-23 21:22:01,537 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:22:01,538 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:22:01,538 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:22:01,539 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:22:01,539 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:21:57" (3/4) ... [2023-11-23 21:22:01,541 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 21:22:01,543 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:22:01,546 INFO L158 Benchmark]: Toolchain (without parser) took 7397.30ms. Allocated memory was 83.9MB in the beginning and 113.2MB in the end (delta: 29.4MB). Free memory was 57.2MB in the beginning and 61.7MB in the end (delta: -4.5MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2023-11-23 21:22:01,546 INFO L158 Benchmark]: CDTParser took 1.36ms. Allocated memory is still 83.9MB. Free memory was 59.4MB in the beginning and 59.2MB in the end (delta: 142.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:22:01,547 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1248.61ms. Allocated memory was 83.9MB in the beginning and 113.2MB in the end (delta: 29.4MB). Free memory was 56.9MB in the beginning and 73.9MB in the end (delta: -16.9MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. [2023-11-23 21:22:01,548 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.98ms. Allocated memory is still 113.2MB. Free memory was 73.9MB in the beginning and 71.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:22:01,548 INFO L158 Benchmark]: Boogie Preprocessor took 64.25ms. Allocated memory is still 113.2MB. Free memory was 71.2MB in the beginning and 69.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:22:01,549 INFO L158 Benchmark]: RCFGBuilder took 1917.45ms. Allocated memory is still 113.2MB. Free memory was 69.6MB in the beginning and 58.1MB in the end (delta: 11.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-11-23 21:22:01,549 INFO L158 Benchmark]: TraceAbstraction took 4085.58ms. Allocated memory is still 113.2MB. Free memory was 57.1MB in the beginning and 62.4MB in the end (delta: -5.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:22:01,550 INFO L158 Benchmark]: Witness Printer took 5.22ms. Allocated memory is still 113.2MB. Free memory was 62.4MB in the beginning and 61.7MB in the end (delta: 669.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:22:01,553 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.36ms. Allocated memory is still 83.9MB. Free memory was 59.4MB in the beginning and 59.2MB in the end (delta: 142.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1248.61ms. Allocated memory was 83.9MB in the beginning and 113.2MB in the end (delta: 29.4MB). Free memory was 56.9MB in the beginning and 73.9MB in the end (delta: -16.9MB). Peak memory consumption was 31.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.98ms. Allocated memory is still 113.2MB. Free memory was 73.9MB in the beginning and 71.2MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.25ms. Allocated memory is still 113.2MB. Free memory was 71.2MB in the beginning and 69.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1917.45ms. Allocated memory is still 113.2MB. Free memory was 69.6MB in the beginning and 58.1MB in the end (delta: 11.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4085.58ms. Allocated memory is still 113.2MB. Free memory was 57.1MB in the beginning and 62.4MB in the end (delta: -5.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.22ms. Allocated memory is still 113.2MB. Free memory was 62.4MB in the beginning and 61.7MB in the end (delta: 669.2kB). 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~short92 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret90 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret93 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret94 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: 858]: 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 847. Possible FailurePath: [L852] float x1 = __VERIFIER_nondet_float(); [L853] float x2 = x1 + 1e-5f; [L854] EXPR !__builtin_isnan (x1) && !__builtin_isinf_sign (x1) [L854] EXPR !__builtin_isnan (x1) && !__builtin_isinf_sign (x1) VAL [x1=-1.2500073909759521, x2=-1.2499973773956299] [L854] COND FALSE !(!(!__builtin_isnan (x1) && !__builtin_isinf_sign (x1))) [L855] CALL, EXPR gelu(x1) VAL [\old(x)=-1.2500073909759521] [L847] float cdf = 0.5f * erff(x / 1.41421356237309504880168872420969807856967187537694807317667973799f) + 0.5f; [L848] return x * cdf; [L855] RET, EXPR gelu(x1) VAL [x1=-1.2500073909759521, x2=-1.2499973773956299] [L855] float y1 = gelu(x1); [L856] CALL, EXPR gelu(x2) VAL [\old(x)=-1.2499973773956299] [L847] float cdf = 0.5f * erff(x / 1.41421356237309504880168872420969807856967187537694807317667973799f) + 0.5f; [L848] return x * cdf; [L856] RET, EXPR gelu(x2) VAL [x1=-1.2500073909759521, x2=-1.2499973773956299, y1=10470459] [L856] float y2 = gelu(x2); [L857] float derivative = (y2 - y1) / 1e-5f; VAL [derivative=-1047045931008, x1=-1.2500073909759521, x2=-1.2499973773956299, y1=10470459, y2=0.0] [L858] COND TRUE !(__builtin_isgreaterequal(derivative, 0.0f)) VAL [derivative=-1047045931008, x1=-1.2500073909759521, x2=-1.2499973773956299, y1=10470459, y2=0.0] [L858] reach_error() VAL [derivative=-1047045931008, x1=-1.2500073909759521, x2=-1.2499973773956299, y1=10470459, y2=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 42 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 2/2 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 [2023-11-23 21:22:01,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a57d827f-4a43-44c5-b818-10c59f11a9db/bin/utaipan-verify-mE87zJ7Ire/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