./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/neural-networks/softplus_4_unsafe.c-amalgamation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/softplus_4_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje --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 5165ba9670951229a03e9eec09d5034a914a3e2ca6cb1d83323501c73292ae2d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:00:52,030 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:00:52,124 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 05:00:52,133 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:00:52,135 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:00:52,179 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:00:52,180 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:00:52,180 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:00:52,181 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:00:52,183 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:00:52,184 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:00:52,185 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:00:52,185 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:00:52,186 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:00:52,186 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:00:52,186 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:00:52,187 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:00:52,187 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:00:52,188 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:00:52,192 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:00:52,193 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:00:52,193 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:00:52,194 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:00:52,196 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:00:52,197 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:00:52,197 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:00:52,198 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:00:52,198 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:00:52,198 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:00:52,199 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:00:52,199 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:00:52,199 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:00:52,200 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:00:52,200 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:00:52,200 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:00:52,201 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:00:52,201 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:00:52,201 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:00:52,202 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:00:52,203 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:00:52,204 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:00:52,204 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:00:52,205 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:00:52,205 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:00:52,206 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:00:52,206 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:00:52,206 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:00:52,207 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_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5165ba9670951229a03e9eec09d5034a914a3e2ca6cb1d83323501c73292ae2d [2024-11-09 05:00:52,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:00:52,511 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:00:52,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:00:52,517 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:00:52,517 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:00:52,519 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/neural-networks/softplus_4_unsafe.c-amalgamation.i Unable to find full path for "g++" [2024-11-09 05:00:54,511 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:00:54,838 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:00:54,838 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/sv-benchmarks/c/neural-networks/softplus_4_unsafe.c-amalgamation.i [2024-11-09 05:00:54,855 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/data/d3afb6323/d86fc1c75cbe4005b748ee878b80bd1f/FLAGe1a64ecf3 [2024-11-09 05:00:54,885 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/data/d3afb6323/d86fc1c75cbe4005b748ee878b80bd1f [2024-11-09 05:00:54,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:00:54,891 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:00:54,892 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:00:54,893 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:00:54,897 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:00:54,897 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:00:54" (1/1) ... [2024-11-09 05:00:54,898 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7671b281 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:54, skipping insertion in model container [2024-11-09 05:00:54,898 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:00:54" (1/1) ... [2024-11-09 05:00:54,961 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:00:55,867 WARN L1698 CHandler]: Possible shadowing of function y1 [2024-11-09 05:00:55,868 WARN L250 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_02fc0d0d-a466-409a-af49-2a709b2fbcbd/sv-benchmarks/c/neural-networks/softplus_4_unsafe.c-amalgamation.i[63165,63178] [2024-11-09 05:00:55,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:00:55,882 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:00:55,924 WARN L1698 CHandler]: Possible shadowing of function y1 [2024-11-09 05:00:55,925 WARN L250 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_02fc0d0d-a466-409a-af49-2a709b2fbcbd/sv-benchmarks/c/neural-networks/softplus_4_unsafe.c-amalgamation.i[63165,63178] [2024-11-09 05:00:55,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:00:56,079 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:00:56,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:56 WrapperNode [2024-11-09 05:00:56,080 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:00:56,081 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:00:56,081 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:00:56,081 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:00:56,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:56" (1/1) ... [2024-11-09 05:00:56,106 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:56" (1/1) ... [2024-11-09 05:00:56,127 INFO L138 Inliner]: procedures = 558, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2024-11-09 05:00:56,128 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:00:56,129 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:00:56,129 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:00:56,129 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:00:56,138 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:56" (1/1) ... [2024-11-09 05:00:56,138 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:56" (1/1) ... [2024-11-09 05:00:56,141 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:56" (1/1) ... [2024-11-09 05:00:56,141 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:56" (1/1) ... [2024-11-09 05:00:56,148 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:56" (1/1) ... [2024-11-09 05:00:56,150 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:56" (1/1) ... [2024-11-09 05:00:56,151 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:56" (1/1) ... [2024-11-09 05:00:56,152 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:56" (1/1) ... [2024-11-09 05:00:56,154 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:00:56,155 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:00:56,155 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:00:56,155 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:00:56,156 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:56" (1/1) ... [2024-11-09 05:00:56,162 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:00:56,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:00:56,189 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:00:56,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:00:56,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:00:56,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:00:56,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:00:56,215 INFO L130 BoogieDeclarations]: Found specification of procedure softplus [2024-11-09 05:00:56,215 INFO L138 BoogieDeclarations]: Found implementation of procedure softplus [2024-11-09 05:00:56,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:00:56,319 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:00:56,321 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:00:56,384 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-09 05:00:56,385 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:00:56,423 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:00:56,423 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 05:00:56,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:00:56 BoogieIcfgContainer [2024-11-09 05:00:56,424 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:00:56,427 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:00:56,427 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:00:56,431 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:00:56,431 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:00:54" (1/3) ... [2024-11-09 05:00:56,436 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1efd9bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:00:56, skipping insertion in model container [2024-11-09 05:00:56,436 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:00:56" (2/3) ... [2024-11-09 05:00:56,436 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1efd9bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:00:56, skipping insertion in model container [2024-11-09 05:00:56,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:00:56" (3/3) ... [2024-11-09 05:00:56,438 INFO L112 eAbstractionObserver]: Analyzing ICFG softplus_4_unsafe.c-amalgamation.i [2024-11-09 05:00:56,461 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:00:56,461 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:00:56,515 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:00:56,520 INFO L333 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, 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;@44c80ab, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:00:56,520 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:00:56,525 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) [2024-11-09 05:00:56,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-09 05:00:56,533 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:00:56,533 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:00:56,534 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:00:56,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:00:56,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1165093942, now seen corresponding path program 1 times [2024-11-09 05:00:56,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:00:56,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766534628] [2024-11-09 05:00:56,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:00:56,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:00:56,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:00:56,646 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:00:56,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:00:56,679 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 05:00:56,681 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:00:56,682 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 05:00:56,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:00:56,688 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-11-09 05:00:56,707 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:00:56,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:00:56 BoogieIcfgContainer [2024-11-09 05:00:56,710 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:00:56,711 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:00:56,711 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:00:56,711 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:00:56,712 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:00:56" (3/4) ... [2024-11-09 05:00:56,715 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 05:00:56,716 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:00:56,718 INFO L158 Benchmark]: Toolchain (without parser) took 1825.87ms. Allocated memory was 140.5MB in the beginning and 192.9MB in the end (delta: 52.4MB). Free memory was 103.0MB in the beginning and 126.1MB in the end (delta: -23.0MB). Peak memory consumption was 32.5MB. Max. memory is 16.1GB. [2024-11-09 05:00:56,718 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 140.5MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:00:56,719 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1188.01ms. Allocated memory was 140.5MB in the beginning and 192.9MB in the end (delta: 52.4MB). Free memory was 102.6MB in the beginning and 156.5MB in the end (delta: -53.9MB). Peak memory consumption was 70.3MB. Max. memory is 16.1GB. [2024-11-09 05:00:56,720 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.26ms. Allocated memory is still 192.9MB. Free memory was 156.5MB in the beginning and 154.4MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:00:56,721 INFO L158 Benchmark]: Boogie Preprocessor took 25.20ms. Allocated memory is still 192.9MB. Free memory was 154.4MB in the beginning and 152.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:00:56,721 INFO L158 Benchmark]: RCFGBuilder took 269.20ms. Allocated memory is still 192.9MB. Free memory was 152.3MB in the beginning and 140.8MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 05:00:56,722 INFO L158 Benchmark]: TraceAbstraction took 283.30ms. Allocated memory is still 192.9MB. Free memory was 139.7MB in the beginning and 126.1MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 05:00:56,723 INFO L158 Benchmark]: Witness Printer took 5.34ms. Allocated memory is still 192.9MB. Free memory is still 126.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:00:56,726 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 140.5MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1188.01ms. Allocated memory was 140.5MB in the beginning and 192.9MB in the end (delta: 52.4MB). Free memory was 102.6MB in the beginning and 156.5MB in the end (delta: -53.9MB). Peak memory consumption was 70.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.26ms. Allocated memory is still 192.9MB. Free memory was 156.5MB in the beginning and 154.4MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.20ms. Allocated memory is still 192.9MB. Free memory was 154.4MB in the beginning and 152.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 269.20ms. Allocated memory is still 192.9MB. Free memory was 152.3MB in the beginning and 140.8MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 283.30ms. Allocated memory is still 192.9MB. Free memory was 139.7MB in the beginning and 126.1MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 5.34ms. Allocated memory is still 192.9MB. Free memory is still 126.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 857]: 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 log1pf at line 847, overapproximation of someBinaryFLOATComparisonOperation at line 857, overapproximation of someBinaryArithmeticFLOAToperation at line 856. Possible FailurePath: [L851] float x1 = __VERIFIER_nondet_float(); [L852] float x2 = x1 + 1e-5f; [L853] COND FALSE !(!(__builtin_islessequal(x1, 88.0f))) [L854] CALL, EXPR softplus(x1) VAL [\old(x)=118] [L847] return log1pf(expf(x)); [L854] RET, EXPR softplus(x1) VAL [x1=118] [L854] float y1 = softplus(x1); [L855] CALL, EXPR softplus(x2) VAL [\old(x)=116] [L847] return log1pf(expf(x)); [L855] RET, EXPR softplus(x2) VAL [x1=118, x2=116] [L855] float y2 = softplus(x2); [L856] float derivative = (y2 - y1) / 1e-5f; VAL [x1=118, x2=116] [L857] COND TRUE !(__builtin_islessequal(derivative, 1.0f)) VAL [x1=118, x2=116] [L857] reach_error() VAL [x1=118, x2=116] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-09 05:00:56,762 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/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_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/neural-networks/softplus_4_unsafe.c-amalgamation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje --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 5165ba9670951229a03e9eec09d5034a914a3e2ca6cb1d83323501c73292ae2d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:00:59,338 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:00:59,449 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2024-11-09 05:00:59,457 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:00:59,458 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:00:59,496 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:00:59,498 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:00:59,498 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:00:59,499 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:00:59,501 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:00:59,502 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:00:59,502 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:00:59,503 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:00:59,503 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:00:59,504 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:00:59,507 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:00:59,508 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:00:59,509 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:00:59,509 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:00:59,509 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:00:59,510 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:00:59,510 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:00:59,510 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:00:59,511 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:00:59,511 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 05:00:59,511 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-09 05:00:59,512 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:00:59,512 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-09 05:00:59,512 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:00:59,512 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:00:59,513 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:00:59,513 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:00:59,513 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 05:00:59,514 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:00:59,517 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:00:59,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:00:59,517 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:00:59,517 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:00:59,518 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:00:59,518 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-09 05:00:59,519 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-09 05:00:59,519 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:00:59,519 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:00:59,520 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5165ba9670951229a03e9eec09d5034a914a3e2ca6cb1d83323501c73292ae2d [2024-11-09 05:00:59,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:00:59,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:00:59,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:00:59,965 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:00:59,966 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:00:59,967 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/neural-networks/softplus_4_unsafe.c-amalgamation.i Unable to find full path for "g++" [2024-11-09 05:01:02,019 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:01:02,414 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:01:02,414 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/sv-benchmarks/c/neural-networks/softplus_4_unsafe.c-amalgamation.i [2024-11-09 05:01:02,440 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/data/eb6c5e213/14fbcac5d07c4243a8abfe82108f1b86/FLAGfb8b66392 [2024-11-09 05:01:02,614 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/data/eb6c5e213/14fbcac5d07c4243a8abfe82108f1b86 [2024-11-09 05:01:02,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:01:02,620 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:01:02,623 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:01:02,624 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:01:02,629 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:01:02,631 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:01:02" (1/1) ... [2024-11-09 05:01:02,632 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7652c42e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:02, skipping insertion in model container [2024-11-09 05:01:02,632 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:01:02" (1/1) ... [2024-11-09 05:01:02,712 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:01:03,667 WARN L1698 CHandler]: Possible shadowing of function y1 [2024-11-09 05:01:03,669 WARN L250 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_02fc0d0d-a466-409a-af49-2a709b2fbcbd/sv-benchmarks/c/neural-networks/softplus_4_unsafe.c-amalgamation.i[63165,63178] [2024-11-09 05:01:03,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:01:03,688 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:01:03,747 WARN L1698 CHandler]: Possible shadowing of function y1 [2024-11-09 05:01:03,748 WARN L250 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_02fc0d0d-a466-409a-af49-2a709b2fbcbd/sv-benchmarks/c/neural-networks/softplus_4_unsafe.c-amalgamation.i[63165,63178] [2024-11-09 05:01:03,749 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:01:03,954 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:01:03,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:03 WrapperNode [2024-11-09 05:01:03,955 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:01:03,956 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:01:03,956 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:01:03,956 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:01:03,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:03" (1/1) ... [2024-11-09 05:01:03,998 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:03" (1/1) ... [2024-11-09 05:01:04,019 INFO L138 Inliner]: procedures = 559, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 33 [2024-11-09 05:01:04,020 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:01:04,021 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:01:04,021 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:01:04,021 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:01:04,030 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:03" (1/1) ... [2024-11-09 05:01:04,030 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:03" (1/1) ... [2024-11-09 05:01:04,033 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:03" (1/1) ... [2024-11-09 05:01:04,033 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:03" (1/1) ... [2024-11-09 05:01:04,053 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:03" (1/1) ... [2024-11-09 05:01:04,055 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:03" (1/1) ... [2024-11-09 05:01:04,056 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:03" (1/1) ... [2024-11-09 05:01:04,062 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:03" (1/1) ... [2024-11-09 05:01:04,064 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:01:04,068 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:01:04,068 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:01:04,068 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:01:04,069 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:03" (1/1) ... [2024-11-09 05:01:04,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:01:04,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:01:04,105 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:01:04,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:01:04,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-09 05:01:04,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:01:04,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:01:04,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:01:04,144 INFO L130 BoogieDeclarations]: Found specification of procedure softplus [2024-11-09 05:01:04,144 INFO L138 BoogieDeclarations]: Found implementation of procedure softplus [2024-11-09 05:01:04,280 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:01:04,282 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:01:04,648 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-09 05:01:04,649 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:01:04,662 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:01:04,663 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 05:01:04,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:01:04 BoogieIcfgContainer [2024-11-09 05:01:04,663 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:01:04,665 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:01:04,666 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:01:04,669 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:01:04,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:01:02" (1/3) ... [2024-11-09 05:01:04,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@371e25e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:01:04, skipping insertion in model container [2024-11-09 05:01:04,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:01:03" (2/3) ... [2024-11-09 05:01:04,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@371e25e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:01:04, skipping insertion in model container [2024-11-09 05:01:04,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:01:04" (3/3) ... [2024-11-09 05:01:04,673 INFO L112 eAbstractionObserver]: Analyzing ICFG softplus_4_unsafe.c-amalgamation.i [2024-11-09 05:01:04,691 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:01:04,692 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:01:04,744 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:01:04,751 INFO L333 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, 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;@4e8a401d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:01:04,751 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:01:04,755 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 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) [2024-11-09 05:01:04,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 05:01:04,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:04,764 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:04,764 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:01:04,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:04,770 INFO L85 PathProgramCache]: Analyzing trace with hash 2056638151, now seen corresponding path program 1 times [2024-11-09 05:01:04,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:01:04,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1580875410] [2024-11-09 05:01:04,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:04,785 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 [2024-11-09 05:01:04,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:01:04,788 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:01:04,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:01:05,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:01:05,117 INFO L255 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-09 05:01:05,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:01:05,142 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 05:01:05,142 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:01:05,143 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2024-11-09 05:01:05,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1580875410] [2024-11-09 05:01:05,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1580875410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:01:05,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:01:05,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:01:05,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131036602] [2024-11-09 05:01:05,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:01:05,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:01:05,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2024-11-09 05:01:05,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:01:05,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:01:05,177 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2024-11-09 05:01:05,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:01:05,192 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2024-11-09 05:01:05,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:01:05,194 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 15 [2024-11-09 05:01:05,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:01:05,199 INFO L225 Difference]: With dead ends: 31 [2024-11-09 05:01:05,199 INFO L226 Difference]: Without dead ends: 13 [2024-11-09 05:01:05,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:01:05,207 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:01:05,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:01:05,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-09 05:01:05,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2024-11-09 05:01:05,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.0) internal successors, (9), 9 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) [2024-11-09 05:01:05,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2024-11-09 05:01:05,244 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 15 [2024-11-09 05:01:05,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:01:05,244 INFO L471 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2024-11-09 05:01:05,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2024-11-09 05:01:05,245 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2024-11-09 05:01:05,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-09 05:01:05,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:01:05,246 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:01:05,255 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:01:05,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:01:05,447 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:01:05,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:01:05,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1469832137, now seen corresponding path program 1 times [2024-11-09 05:01:05,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2024-11-09 05:01:05,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1281909225] [2024-11-09 05:01:05,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:01:05,449 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 [2024-11-09 05:01:05,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/mathsat [2024-11-09 05:01:05,451 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/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) [2024-11-09 05:01:05,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:01:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:01:05,724 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:01:05,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:01:05,966 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2024-11-09 05:01:05,966 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:01:05,981 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 05:01:05,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/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)] Ended with exit code 0 [2024-11-09 05:01:06,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/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 [2024-11-09 05:01:06,188 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 05:01:06,214 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:01:06,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:01:06 BoogieIcfgContainer [2024-11-09 05:01:06,218 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:01:06,218 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:01:06,219 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:01:06,219 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:01:06,220 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:01:04" (3/4) ... [2024-11-09 05:01:06,222 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-09 05:01:06,224 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:01:06,225 INFO L158 Benchmark]: Toolchain (without parser) took 3604.10ms. Allocated memory was 69.2MB in the beginning and 109.1MB in the end (delta: 39.8MB). Free memory was 42.6MB in the beginning and 78.8MB in the end (delta: -36.2MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2024-11-09 05:01:06,225 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 69.2MB. Free memory is still 44.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:01:06,226 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1332.63ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 42.5MB in the beginning and 53.0MB in the end (delta: -10.5MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. [2024-11-09 05:01:06,226 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.26ms. Allocated memory is still 88.1MB. Free memory was 53.0MB in the beginning and 50.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:01:06,227 INFO L158 Benchmark]: Boogie Preprocessor took 43.54ms. Allocated memory is still 88.1MB. Free memory was 50.2MB in the beginning and 48.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:01:06,227 INFO L158 Benchmark]: RCFGBuilder took 595.37ms. Allocated memory is still 88.1MB. Free memory was 48.5MB in the beginning and 60.4MB in the end (delta: -11.9MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2024-11-09 05:01:06,228 INFO L158 Benchmark]: TraceAbstraction took 1552.60ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 59.5MB in the beginning and 79.5MB in the end (delta: -20.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-11-09 05:01:06,228 INFO L158 Benchmark]: Witness Printer took 5.29ms. Allocated memory is still 109.1MB. Free memory was 79.5MB in the beginning and 78.8MB in the end (delta: 680.8kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:01:06,232 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 69.2MB. Free memory is still 44.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1332.63ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 42.5MB in the beginning and 53.0MB in the end (delta: -10.5MB). Peak memory consumption was 29.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.26ms. Allocated memory is still 88.1MB. Free memory was 53.0MB in the beginning and 50.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.54ms. Allocated memory is still 88.1MB. Free memory was 50.2MB in the beginning and 48.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 595.37ms. Allocated memory is still 88.1MB. Free memory was 48.5MB in the beginning and 60.4MB in the end (delta: -11.9MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1552.60ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 59.5MB in the beginning and 79.5MB in the end (delta: -20.0MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 5.29ms. Allocated memory is still 109.1MB. Free memory was 79.5MB in the beginning and 78.8MB in the end (delta: 680.8kB). Peak memory consumption was 2.1MB. 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: 857]: 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 log1pf at line 847. Possible FailurePath: [L851] float x1 = __VERIFIER_nondet_float(); [L852] float x2 = x1 + 1e-5f; VAL [x1=0.0, x2=0.000009999999747378752] [L853] COND FALSE !(!(__builtin_islessequal(x1, 88.0f))) VAL [x1=0.0, x2=0.000009999999747378752] [L854] CALL, EXPR softplus(x1) VAL [\old(x)=0.0] [L847] return log1pf(expf(x)); [L854] RET, EXPR softplus(x1) VAL [x1=0.0, x2=0.000009999999747378752] [L854] float y1 = softplus(x1); [L855] CALL, EXPR softplus(x2) VAL [\old(x)=0.000009999999747378752] [L847] return log1pf(expf(x)); [L855] RET, EXPR softplus(x2) VAL [x1=0.0, x2=0.000009999999747378752, y1=0.0] [L855] float y2 = softplus(x2); [L856] float derivative = (y2 - y1) / 1e-5f; VAL [derivative=200000.0, x1=0.0, x2=0.000009999999747378752] [L857] COND TRUE !(__builtin_islessequal(derivative, 1.0f)) VAL [x1=0.0, x2=0.000009999999747378752] [L857] reach_error() VAL [x1=0.0, x2=0.000009999999747378752] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 17 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 0.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 39 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 3/3 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 [2024-11-09 05:01:06,276 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02fc0d0d-a466-409a-af49-2a709b2fbcbd/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample