./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/logistic_1_safe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/logistic_1_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5 --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 cafc87892eac1d95f14b56d4db86b67c54f909d705f2b8eae217aab9bba1ebd9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:43:02,675 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:43:02,789 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-21 19:43:02,797 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:43:02,798 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:43:02,838 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:43:02,839 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:43:02,840 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:43:02,841 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:43:02,846 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:43:02,846 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:43:02,848 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:43:02,848 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:43:02,850 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:43:02,850 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:43:02,851 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:43:02,851 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:43:02,852 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:43:02,852 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:43:02,853 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:43:02,853 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:43:02,854 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:43:02,855 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:43:02,856 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:43:02,856 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:43:02,857 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:43:02,857 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:43:02,857 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:43:02,858 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:43:02,858 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:43:02,860 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:43:02,860 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:43:02,860 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:43:02,861 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:43:02,861 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:43:02,861 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:43:02,862 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:43:02,862 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:43:02,862 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:43:02,862 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:43:02,863 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:43:02,863 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:43:02,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:43:02,864 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:43:02,864 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:43:02,865 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:43:02,865 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:43:02,865 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_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cafc87892eac1d95f14b56d4db86b67c54f909d705f2b8eae217aab9bba1ebd9 [2023-11-21 19:43:03,141 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:43:03,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:43:03,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:43:03,175 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:43:03,175 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:43:03,177 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/neural-networks/logistic_1_safe.c-amalgamation.i [2023-11-21 19:43:06,409 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:43:06,903 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:43:06,904 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/sv-benchmarks/c/neural-networks/logistic_1_safe.c-amalgamation.i [2023-11-21 19:43:06,937 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/data/5415a7a51/bab89b3b678e458dae72f6bce27054b5/FLAGc329bbb02 [2023-11-21 19:43:06,952 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/data/5415a7a51/bab89b3b678e458dae72f6bce27054b5 [2023-11-21 19:43:06,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:43:06,956 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:43:06,959 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:43:06,963 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:43:06,969 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:43:06,970 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:43:06" (1/1) ... [2023-11-21 19:43:06,972 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b7bffa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:43:06, skipping insertion in model container [2023-11-21 19:43:06,972 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:43:06" (1/1) ... [2023-11-21 19:43:07,047 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:43:07,337 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 19:43:07,913 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 19:43:07,918 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_0c9b3a26-12b3-43f4-8172-6455def6d302/sv-benchmarks/c/neural-networks/logistic_1_safe.c-amalgamation.i[63069,63082] [2023-11-21 19:43:07,923 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:43:07,938 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:43:07,956 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 19:43:07,980 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 19:43:07,981 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_0c9b3a26-12b3-43f4-8172-6455def6d302/sv-benchmarks/c/neural-networks/logistic_1_safe.c-amalgamation.i[63069,63082] [2023-11-21 19:43:07,982 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:43:08,136 WARN L675 CHandler]: The function __builtin_isnan is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:43:08,136 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:43:08,144 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:43:08,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:43:08 WrapperNode [2023-11-21 19:43:08,145 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:43:08,146 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:43:08,146 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:43:08,146 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:43:08,153 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:43:08" (1/1) ... [2023-11-21 19:43:08,186 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:43:08" (1/1) ... [2023-11-21 19:43:08,211 INFO L138 Inliner]: procedures = 560, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2023-11-21 19:43:08,211 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:43:08,212 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:43:08,212 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:43:08,212 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:43:08,221 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:43:08" (1/1) ... [2023-11-21 19:43:08,221 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:43:08" (1/1) ... [2023-11-21 19:43:08,224 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:43:08" (1/1) ... [2023-11-21 19:43:08,225 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:43:08" (1/1) ... [2023-11-21 19:43:08,229 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:43:08" (1/1) ... [2023-11-21 19:43:08,231 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:43:08" (1/1) ... [2023-11-21 19:43:08,233 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:43:08" (1/1) ... [2023-11-21 19:43:08,234 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:43:08" (1/1) ... [2023-11-21 19:43:08,236 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:43:08,237 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:43:08,237 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:43:08,237 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:43:08,238 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:43:08" (1/1) ... [2023-11-21 19:43:08,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:43:08,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:43:08,271 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:43:08,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:43:08,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:43:08,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:43:08,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:43:08,310 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_isnan [2023-11-21 19:43:08,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:43:08,439 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:43:08,441 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:43:08,586 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:43:08,642 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:43:08,642 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 19:43:08,644 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:43:08 BoogieIcfgContainer [2023-11-21 19:43:08,644 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:43:08,647 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:43:08,647 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:43:08,651 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:43:08,651 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:43:06" (1/3) ... [2023-11-21 19:43:08,652 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b4d473e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:43:08, skipping insertion in model container [2023-11-21 19:43:08,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:43:08" (2/3) ... [2023-11-21 19:43:08,652 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b4d473e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:43:08, skipping insertion in model container [2023-11-21 19:43:08,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:43:08" (3/3) ... [2023-11-21 19:43:08,654 INFO L112 eAbstractionObserver]: Analyzing ICFG logistic_1_safe.c-amalgamation.i [2023-11-21 19:43:08,674 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:43:08,675 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:43:08,717 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:43:08,725 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;@18d7d7be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:43:08,725 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:43:08,733 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:43:08,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 19:43:08,738 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:43:08,739 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 19:43:08,740 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:43:08,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:43:08,745 INFO L85 PathProgramCache]: Analyzing trace with hash 59070, now seen corresponding path program 1 times [2023-11-21 19:43:08,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:43:08,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600507550] [2023-11-21 19:43:08,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:43:08,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:43:08,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 19:43:08,857 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 19:43:08,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 19:43:08,887 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-11-21 19:43:08,889 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 19:43:08,890 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 19:43:08,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 19:43:08,897 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 19:43:08,901 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 19:43:08,918 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 07:43:08 BoogieIcfgContainer [2023-11-21 19:43:08,918 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 19:43:08,919 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 19:43:08,919 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 19:43:08,920 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 19:43:08,920 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:43:08" (3/4) ... [2023-11-21 19:43:08,923 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 19:43:08,924 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 19:43:08,925 INFO L158 Benchmark]: Toolchain (without parser) took 1968.65ms. Allocated memory was 148.9MB in the beginning and 182.5MB in the end (delta: 33.6MB). Free memory was 114.1MB in the beginning and 122.7MB in the end (delta: -8.6MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. [2023-11-21 19:43:08,926 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 148.9MB. Free memory is still 95.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:43:08,927 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1186.34ms. Allocated memory was 148.9MB in the beginning and 182.5MB in the end (delta: 33.6MB). Free memory was 114.1MB in the beginning and 149.0MB in the end (delta: -34.9MB). Peak memory consumption was 63.9MB. Max. memory is 16.1GB. [2023-11-21 19:43:08,927 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.68ms. Allocated memory is still 182.5MB. Free memory was 148.9MB in the beginning and 148.9MB in the end (delta: 55.6kB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2023-11-21 19:43:08,928 INFO L158 Benchmark]: Boogie Preprocessor took 24.26ms. Allocated memory is still 182.5MB. Free memory was 148.9MB in the beginning and 147.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:43:08,929 INFO L158 Benchmark]: RCFGBuilder took 407.42ms. Allocated memory is still 182.5MB. Free memory was 147.9MB in the beginning and 136.3MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 19:43:08,929 INFO L158 Benchmark]: TraceAbstraction took 271.47ms. Allocated memory is still 182.5MB. Free memory was 135.3MB in the beginning and 122.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 19:43:08,930 INFO L158 Benchmark]: Witness Printer took 4.95ms. Allocated memory is still 182.5MB. Free memory is still 122.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:43:08,933 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 148.9MB. Free memory is still 95.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1186.34ms. Allocated memory was 148.9MB in the beginning and 182.5MB in the end (delta: 33.6MB). Free memory was 114.1MB in the beginning and 149.0MB in the end (delta: -34.9MB). Peak memory consumption was 63.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.68ms. Allocated memory is still 182.5MB. Free memory was 148.9MB in the beginning and 148.9MB in the end (delta: 55.6kB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.26ms. Allocated memory is still 182.5MB. Free memory was 148.9MB in the beginning and 147.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 407.42ms. Allocated memory is still 182.5MB. Free memory was 147.9MB in the beginning and 136.3MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 271.47ms. Allocated memory is still 182.5MB. Free memory was 135.3MB in the beginning and 122.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 4.95ms. Allocated memory is still 182.5MB. Free memory is still 122.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 854]: 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 854, overapproximation of someBinaryArithmeticFLOAToperation at line 847. Possible FailurePath: [L851] float x = __VERIFIER_nondet_float(); [L852] COND FALSE !(!(!__builtin_isnan (x))) [L853] CALL, EXPR logistic(x) [L847] return 0.5f * tanhf(0.5f * x) + 0.5f; [L853] RET, EXPR logistic(x) [L853] float y = logistic(x); [L854] COND TRUE !(__builtin_isgreaterequal(y, 1.0f)) VAL [y=116] [L854] reach_error() VAL [y=116] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 19:43:08,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/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_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/logistic_1_safe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5 --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 cafc87892eac1d95f14b56d4db86b67c54f909d705f2b8eae217aab9bba1ebd9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:43:11,756 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:43:11,879 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2023-11-21 19:43:11,888 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:43:11,888 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:43:11,935 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:43:11,936 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:43:11,936 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:43:11,938 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:43:11,943 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:43:11,944 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:43:11,944 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:43:11,945 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:43:11,947 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:43:11,947 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:43:11,948 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:43:11,949 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:43:11,950 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:43:11,950 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 19:43:11,951 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 19:43:11,952 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:43:11,952 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:43:11,953 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:43:11,953 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:43:11,954 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 19:43:11,954 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 19:43:11,955 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 19:43:11,955 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 19:43:11,956 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:43:11,956 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:43:11,958 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:43:11,958 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 19:43:11,958 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:43:11,959 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:43:11,959 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:43:11,960 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:43:11,960 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:43:11,960 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:43:11,961 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-21 19:43:11,962 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 19:43:11,962 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:43:11,964 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:43:11,964 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:43:11,964 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:43:11,965 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_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cafc87892eac1d95f14b56d4db86b67c54f909d705f2b8eae217aab9bba1ebd9 [2023-11-21 19:43:12,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:43:12,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:43:12,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:43:12,443 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:43:12,444 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:43:12,445 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/neural-networks/logistic_1_safe.c-amalgamation.i [2023-11-21 19:43:15,922 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:43:16,323 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:43:16,324 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/sv-benchmarks/c/neural-networks/logistic_1_safe.c-amalgamation.i [2023-11-21 19:43:16,354 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/data/9efe75409/e6cf49a2bbd2440aae43b48fa245dac5/FLAGd50e32014 [2023-11-21 19:43:16,373 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/data/9efe75409/e6cf49a2bbd2440aae43b48fa245dac5 [2023-11-21 19:43:16,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:43:16,377 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:43:16,382 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:43:16,383 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:43:16,388 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:43:16,389 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:43:16" (1/1) ... [2023-11-21 19:43:16,390 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55028b73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:43:16, skipping insertion in model container [2023-11-21 19:43:16,390 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:43:16" (1/1) ... [2023-11-21 19:43:16,459 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:43:16,716 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 19:43:17,290 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 19:43:17,292 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_0c9b3a26-12b3-43f4-8172-6455def6d302/sv-benchmarks/c/neural-networks/logistic_1_safe.c-amalgamation.i[63069,63082] [2023-11-21 19:43:17,297 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:43:17,311 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:43:17,345 WARN L635 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-11-21 19:43:17,388 WARN L635 FunctionHandler]: implicit declaration of function __builtin_isnan [2023-11-21 19:43:17,389 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_0c9b3a26-12b3-43f4-8172-6455def6d302/sv-benchmarks/c/neural-networks/logistic_1_safe.c-amalgamation.i[63069,63082] [2023-11-21 19:43:17,390 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:43:17,543 WARN L675 CHandler]: The function __builtin_isnan is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:43:17,543 WARN L675 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:43:17,552 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:43:17,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:43:17 WrapperNode [2023-11-21 19:43:17,553 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:43:17,554 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:43:17,554 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:43:17,554 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:43:17,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:43:17" (1/1) ... [2023-11-21 19:43:17,607 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:43:17" (1/1) ... [2023-11-21 19:43:17,635 INFO L138 Inliner]: procedures = 561, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 35 [2023-11-21 19:43:17,636 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:43:17,636 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:43:17,636 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:43:17,637 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:43:17,645 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:43:17" (1/1) ... [2023-11-21 19:43:17,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:43:17" (1/1) ... [2023-11-21 19:43:17,649 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:43:17" (1/1) ... [2023-11-21 19:43:17,649 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:43:17" (1/1) ... [2023-11-21 19:43:17,656 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:43:17" (1/1) ... [2023-11-21 19:43:17,657 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:43:17" (1/1) ... [2023-11-21 19:43:17,660 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:43:17" (1/1) ... [2023-11-21 19:43:17,661 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:43:17" (1/1) ... [2023-11-21 19:43:17,664 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:43:17,665 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:43:17,665 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:43:17,665 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:43:17,666 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:43:17" (1/1) ... [2023-11-21 19:43:17,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:43:17,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:43:17,707 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:43:17,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:43:17,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-21 19:43:17,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:43:17,755 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:43:17,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:43:17,755 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_isnan [2023-11-21 19:43:17,868 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:43:17,870 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:43:18,230 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:43:18,339 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:43:18,340 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 19:43:18,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:43:18 BoogieIcfgContainer [2023-11-21 19:43:18,341 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:43:18,344 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:43:18,344 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:43:18,347 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:43:18,347 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:43:16" (1/3) ... [2023-11-21 19:43:18,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2407bc0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:43:18, skipping insertion in model container [2023-11-21 19:43:18,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:43:17" (2/3) ... [2023-11-21 19:43:18,348 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2407bc0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:43:18, skipping insertion in model container [2023-11-21 19:43:18,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:43:18" (3/3) ... [2023-11-21 19:43:18,350 INFO L112 eAbstractionObserver]: Analyzing ICFG logistic_1_safe.c-amalgamation.i [2023-11-21 19:43:18,379 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:43:18,380 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:43:18,432 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:43:18,440 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;@4a75d3ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:43:18,441 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:43:18,446 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 19:43:18,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-21 19:43:18,453 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:43:18,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2023-11-21 19:43:18,455 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:43:18,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:43:18,461 INFO L85 PathProgramCache]: Analyzing trace with hash 59070, now seen corresponding path program 1 times [2023-11-21 19:43:18,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2023-11-21 19:43:18,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [285317892] [2023-11-21 19:43:18,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:43:18,472 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 19:43:18,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/mathsat [2023-11-21 19:43:18,476 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/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 19:43:18,478 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/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 19:43:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 19:43:18,599 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 19:43:18,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 19:43:18,683 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2023-11-21 19:43:18,685 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 19:43:18,686 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 19:43:18,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-21 19:43:18,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/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 19:43:18,892 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 19:43:18,896 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 19:43:18,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 07:43:18 BoogieIcfgContainer [2023-11-21 19:43:18,913 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 19:43:18,914 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 19:43:18,914 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 19:43:18,914 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 19:43:18,915 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:43:18" (3/4) ... [2023-11-21 19:43:18,917 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 19:43:18,918 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 19:43:18,919 INFO L158 Benchmark]: Toolchain (without parser) took 2542.05ms. Allocated memory is still 96.5MB. Free memory was 70.0MB in the beginning and 51.6MB in the end (delta: 18.4MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2023-11-21 19:43:18,920 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 77.6MB. Free memory is still 54.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:43:18,921 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1170.87ms. Allocated memory is still 96.5MB. Free memory was 69.8MB in the beginning and 55.8MB in the end (delta: 14.0MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. [2023-11-21 19:43:18,921 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.86ms. Allocated memory is still 96.5MB. Free memory was 55.8MB in the beginning and 53.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 19:43:18,922 INFO L158 Benchmark]: Boogie Preprocessor took 28.16ms. Allocated memory is still 96.5MB. Free memory was 52.8MB in the beginning and 51.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 19:43:18,923 INFO L158 Benchmark]: RCFGBuilder took 676.43ms. Allocated memory is still 96.5MB. Free memory was 51.6MB in the beginning and 64.6MB in the end (delta: -13.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-21 19:43:18,923 INFO L158 Benchmark]: TraceAbstraction took 569.27ms. Allocated memory is still 96.5MB. Free memory was 64.2MB in the beginning and 52.0MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 19:43:18,924 INFO L158 Benchmark]: Witness Printer took 4.62ms. Allocated memory is still 96.5MB. Free memory was 52.0MB in the beginning and 51.6MB in the end (delta: 472.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 19:43:18,933 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 77.6MB. Free memory is still 54.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1170.87ms. Allocated memory is still 96.5MB. Free memory was 69.8MB in the beginning and 55.8MB in the end (delta: 14.0MB). Peak memory consumption was 31.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.86ms. Allocated memory is still 96.5MB. Free memory was 55.8MB in the beginning and 53.2MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.16ms. Allocated memory is still 96.5MB. Free memory was 52.8MB in the beginning and 51.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 676.43ms. Allocated memory is still 96.5MB. Free memory was 51.6MB in the beginning and 64.6MB in the end (delta: -13.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 569.27ms. Allocated memory is still 96.5MB. Free memory was 64.2MB in the beginning and 52.0MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 4.62ms. Allocated memory is still 96.5MB. Free memory was 52.0MB in the beginning and 51.6MB in the end (delta: 472.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 854]: 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 tanhf at line 847. Possible FailurePath: [L851] float x = __VERIFIER_nondet_float(); [L852] COND FALSE !(!(!__builtin_isnan (x))) [L853] CALL, EXPR logistic(x) [L847] return 0.5f * tanhf(0.5f * x) + 0.5f; [L853] RET, EXPR logistic(x) [L853] float y = logistic(x); [L854] COND TRUE !(__builtin_isgreaterequal(y, 1.0f)) VAL [y=0.44921875] [L854] reach_error() VAL [y=0.44921875] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-21 19:43:18,988 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0c9b3a26-12b3-43f4-8172-6455def6d302/bin/utaipan-verify-QoSU8krkJ5/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