./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/nan_float.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --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 eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:10:41,192 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:10:41,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:10:41,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:10:41,248 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:10:41,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:10:41,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:10:41,260 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:10:41,262 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:10:41,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:10:41,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:10:41,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:10:41,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:10:41,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:10:41,278 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:10:41,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:10:41,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:10:41,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:10:41,289 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:10:41,298 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:10:41,301 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:10:41,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:10:41,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:10:41,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:10:41,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:10:41,311 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:10:41,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:10:41,313 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:10:41,314 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:10:41,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:10:41,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:10:41,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:10:41,319 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:10:41,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:10:41,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:10:41,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:10:41,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:10:41,323 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:10:41,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:10:41,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:10:41,324 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:10:41,325 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-07 02:10:41,370 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:10:41,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:10:41,371 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:10:41,371 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:10:41,371 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:10:41,371 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:10:41,371 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-07 02:10:41,371 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:10:41,371 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:10:41,372 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-07 02:10:41,372 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-07 02:10:41,372 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:10:41,372 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-07 02:10:41,372 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-07 02:10:41,373 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-07 02:10:41,373 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:10:41,373 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:10:41,374 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 02:10:41,374 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:10:41,374 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:10:41,374 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:10:41,374 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:10:41,375 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:10:41,375 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:10:41,375 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:10:41,375 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:10:41,375 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:10:41,376 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:10:41,376 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:10:41,376 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:10:41,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:10:41,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:10:41,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:10:41,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:10:41,382 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-07 02:10:41,382 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 02:10:41,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:10:41,382 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:10:41,382 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:10:41,383 INFO L138 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_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e [2021-11-07 02:10:41,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:10:41,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:10:41,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:10:41,737 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:10:41,738 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:10:41,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/float-benchs/nan_float.c [2021-11-07 02:10:41,813 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/data/34cdf5e3d/84afa55bf191481d841b144b188b8941/FLAGc0f5ed96a [2021-11-07 02:10:42,333 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:10:42,335 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/sv-benchmarks/c/float-benchs/nan_float.c [2021-11-07 02:10:42,348 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/data/34cdf5e3d/84afa55bf191481d841b144b188b8941/FLAGc0f5ed96a [2021-11-07 02:10:42,708 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/data/34cdf5e3d/84afa55bf191481d841b144b188b8941 [2021-11-07 02:10:42,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:10:42,712 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:10:42,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:10:42,715 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:10:42,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:10:42,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:10:42" (1/1) ... [2021-11-07 02:10:42,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c2112c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:42, skipping insertion in model container [2021-11-07 02:10:42,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:10:42" (1/1) ... [2021-11-07 02:10:42,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:10:42,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:10:42,914 WARN L228 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_bb781951-a3b5-401a-970f-3eeb50e40b0f/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2021-11-07 02:10:42,924 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:10:42,946 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:10:42,963 WARN L228 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_bb781951-a3b5-401a-970f-3eeb50e40b0f/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2021-11-07 02:10:42,965 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:10:42,981 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:10:42,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:42 WrapperNode [2021-11-07 02:10:42,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:10:42,983 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:10:42,984 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:10:42,984 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:10:42,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:42" (1/1) ... [2021-11-07 02:10:43,006 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:42" (1/1) ... [2021-11-07 02:10:43,027 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:10:43,029 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:10:43,029 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:10:43,030 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:10:43,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:42" (1/1) ... [2021-11-07 02:10:43,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:42" (1/1) ... [2021-11-07 02:10:43,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:42" (1/1) ... [2021-11-07 02:10:43,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:42" (1/1) ... [2021-11-07 02:10:43,048 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:42" (1/1) ... [2021-11-07 02:10:43,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:42" (1/1) ... [2021-11-07 02:10:43,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:42" (1/1) ... [2021-11-07 02:10:43,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:10:43,062 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:10:43,064 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:10:43,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:10:43,065 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:42" (1/1) ... [2021-11-07 02:10:43,073 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:10:43,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:10:43,093 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:10:43,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:10:43,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:10:43,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:10:43,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 02:10:43,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:10:43,414 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:10:43,415 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-07 02:10:43,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:10:43 BoogieIcfgContainer [2021-11-07 02:10:43,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:10:43,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:10:43,438 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:10:43,455 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:10:43,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:10:42" (1/3) ... [2021-11-07 02:10:43,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b137acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:10:43, skipping insertion in model container [2021-11-07 02:10:43,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:42" (2/3) ... [2021-11-07 02:10:43,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b137acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:10:43, skipping insertion in model container [2021-11-07 02:10:43,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:10:43" (3/3) ... [2021-11-07 02:10:43,459 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float.c [2021-11-07 02:10:43,465 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:10:43,465 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 02:10:43,559 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:10:43,567 INFO L339 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=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 02:10:43,567 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 02:10:43,582 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) [2021-11-07 02:10:43,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-07 02:10:43,587 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:10:43,588 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-07 02:10:43,589 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:10:43,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:10:43,595 INFO L85 PathProgramCache]: Analyzing trace with hash 47251, now seen corresponding path program 1 times [2021-11-07 02:10:43,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-07 02:10:43,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170179176] [2021-11-07 02:10:43,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:43,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 02:10:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 02:10:43,748 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 02:10:43,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 02:10:43,838 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-07 02:10:43,848 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 02:10:43,851 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:10:43,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 02:10:43,863 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-11-07 02:10:43,866 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 02:10:43,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:10:43 BoogieIcfgContainer [2021-11-07 02:10:43,890 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 02:10:43,895 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 02:10:43,895 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 02:10:43,896 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 02:10:43,897 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:10:43" (3/4) ... [2021-11-07 02:10:43,901 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 02:10:43,901 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 02:10:43,908 INFO L168 Benchmark]: Toolchain (without parser) took 1190.66 ms. Allocated memory is still 109.1 MB. Free memory was 74.4 MB in the beginning and 59.7 MB in the end (delta: 14.7 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2021-11-07 02:10:43,910 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 109.1 MB. Free memory was 83.3 MB in the beginning and 83.3 MB in the end (delta: 27.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:10:43,912 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.02 ms. Allocated memory is still 109.1 MB. Free memory was 74.2 MB in the beginning and 84.9 MB in the end (delta: -10.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 02:10:43,913 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.46 ms. Allocated memory is still 109.1 MB. Free memory was 84.9 MB in the beginning and 83.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 02:10:43,914 INFO L168 Benchmark]: Boogie Preprocessor took 31.79 ms. Allocated memory is still 109.1 MB. Free memory was 83.7 MB in the beginning and 82.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:10:43,916 INFO L168 Benchmark]: RCFGBuilder took 374.76 ms. Allocated memory is still 109.1 MB. Free memory was 82.6 MB in the beginning and 72.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 02:10:43,922 INFO L168 Benchmark]: TraceAbstraction took 453.03 ms. Allocated memory is still 109.1 MB. Free memory was 72.3 MB in the beginning and 59.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-07 02:10:43,924 INFO L168 Benchmark]: Witness Printer took 6.88 ms. Allocated memory is still 109.1 MB. Free memory is still 59.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:10:43,931 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 109.1 MB. Free memory was 83.3 MB in the beginning and 83.3 MB in the end (delta: 27.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 268.02 ms. Allocated memory is still 109.1 MB. Free memory was 74.2 MB in the beginning and 84.9 MB in the end (delta: -10.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.46 ms. Allocated memory is still 109.1 MB. Free memory was 84.9 MB in the beginning and 83.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.79 ms. Allocated memory is still 109.1 MB. Free memory was 83.7 MB in the beginning and 82.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 374.76 ms. Allocated memory is still 109.1 MB. Free memory was 82.6 MB in the beginning and 72.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 453.03 ms. Allocated memory is still 109.1 MB. Free memory was 72.3 MB in the beginning and 59.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 6.88 ms. Allocated memory is still 109.1 MB. Free memory is still 59.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * 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: 8]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15. Possible FailurePath: [L12] float x; [L13] x = __VERIFIER_nondet_float() [L8] COND TRUE !(cond) [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, 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 [2021-11-07 02:10:44,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8 --witnessprinter.witness.filename witness.graphml --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 eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 02:10:46,825 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 02:10:46,829 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 02:10:46,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 02:10:46,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 02:10:46,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 02:10:46,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 02:10:46,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 02:10:46,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 02:10:46,917 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 02:10:46,919 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 02:10:46,922 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 02:10:46,922 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 02:10:46,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 02:10:46,929 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 02:10:46,934 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 02:10:46,936 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 02:10:46,938 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 02:10:46,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 02:10:46,949 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 02:10:46,951 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 02:10:46,953 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 02:10:46,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 02:10:46,958 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 02:10:46,968 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 02:10:46,968 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 02:10:46,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 02:10:46,971 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 02:10:46,972 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 02:10:46,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 02:10:46,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 02:10:46,974 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 02:10:46,976 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 02:10:46,977 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 02:10:46,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 02:10:46,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 02:10:46,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 02:10:46,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 02:10:46,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 02:10:46,983 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 02:10:46,984 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 02:10:46,990 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-07 02:10:47,033 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 02:10:47,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 02:10:47,035 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-07 02:10:47,035 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-07 02:10:47,035 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-07 02:10:47,036 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-07 02:10:47,036 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-07 02:10:47,036 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-07 02:10:47,037 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-07 02:10:47,038 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 02:10:47,040 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 02:10:47,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 02:10:47,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 02:10:47,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 02:10:47,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 02:10:47,041 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 02:10:47,042 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-07 02:10:47,042 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 02:10:47,042 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 02:10:47,043 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 02:10:47,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 02:10:47,043 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 02:10:47,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 02:10:47,044 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 02:10:47,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 02:10:47,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 02:10:47,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:10:47,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 02:10:47,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 02:10:47,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 02:10:47,047 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-07 02:10:47,047 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 02:10:47,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 02:10:47,048 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 02:10:47,048 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 02:10:47,049 INFO L138 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_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e [2021-11-07 02:10:47,478 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 02:10:47,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 02:10:47,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 02:10:47,512 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 02:10:47,513 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 02:10:47,514 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/../../sv-benchmarks/c/float-benchs/nan_float.c [2021-11-07 02:10:47,578 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/data/a606d6323/84e6f0a9a9664ca381d1316b4110678b/FLAGd5ece95fa [2021-11-07 02:10:48,137 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 02:10:48,138 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/sv-benchmarks/c/float-benchs/nan_float.c [2021-11-07 02:10:48,145 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/data/a606d6323/84e6f0a9a9664ca381d1316b4110678b/FLAGd5ece95fa [2021-11-07 02:10:48,514 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/data/a606d6323/84e6f0a9a9664ca381d1316b4110678b [2021-11-07 02:10:48,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 02:10:48,520 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 02:10:48,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 02:10:48,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 02:10:48,526 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 02:10:48,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:10:48" (1/1) ... [2021-11-07 02:10:48,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@415a9023 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:48, skipping insertion in model container [2021-11-07 02:10:48,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:10:48" (1/1) ... [2021-11-07 02:10:48,539 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 02:10:48,554 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 02:10:48,702 WARN L228 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_bb781951-a3b5-401a-970f-3eeb50e40b0f/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2021-11-07 02:10:48,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:10:48,729 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 02:10:48,745 WARN L228 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_bb781951-a3b5-401a-970f-3eeb50e40b0f/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2021-11-07 02:10:48,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 02:10:48,765 INFO L208 MainTranslator]: Completed translation [2021-11-07 02:10:48,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:48 WrapperNode [2021-11-07 02:10:48,766 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 02:10:48,768 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 02:10:48,768 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 02:10:48,768 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 02:10:48,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:48" (1/1) ... [2021-11-07 02:10:48,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:48" (1/1) ... [2021-11-07 02:10:48,843 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 02:10:48,844 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 02:10:48,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 02:10:48,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 02:10:48,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:48" (1/1) ... [2021-11-07 02:10:48,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:48" (1/1) ... [2021-11-07 02:10:48,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:48" (1/1) ... [2021-11-07 02:10:48,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:48" (1/1) ... [2021-11-07 02:10:48,887 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:48" (1/1) ... [2021-11-07 02:10:48,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:48" (1/1) ... [2021-11-07 02:10:48,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:48" (1/1) ... [2021-11-07 02:10:48,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 02:10:48,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 02:10:48,910 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 02:10:48,910 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 02:10:48,911 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:48" (1/1) ... [2021-11-07 02:10:48,920 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 02:10:48,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/z3 [2021-11-07 02:10:48,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 02:10:48,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 02:10:49,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 02:10:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 02:10:49,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 02:10:49,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 02:10:49,252 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 02:10:49,254 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-07 02:10:49,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:10:49 BoogieIcfgContainer [2021-11-07 02:10:49,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 02:10:49,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 02:10:49,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 02:10:49,264 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 02:10:49,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:10:48" (1/3) ... [2021-11-07 02:10:49,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62fcd2f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:10:49, skipping insertion in model container [2021-11-07 02:10:49,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:10:48" (2/3) ... [2021-11-07 02:10:49,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62fcd2f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:10:49, skipping insertion in model container [2021-11-07 02:10:49,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:10:49" (3/3) ... [2021-11-07 02:10:49,268 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float.c [2021-11-07 02:10:49,273 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 02:10:49,274 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 02:10:49,334 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 02:10:49,345 INFO L339 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=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 02:10:49,345 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 02:10:49,362 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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) [2021-11-07 02:10:49,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-07 02:10:49,370 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 02:10:49,370 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-07 02:10:49,371 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 02:10:49,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 02:10:49,380 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-11-07 02:10:49,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-07 02:10:49,427 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [573014175] [2021-11-07 02:10:49,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 02:10:49,430 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 02:10:49,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/mathsat [2021-11-07 02:10:49,436 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 02:10:49,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 02:10:49,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 02:10:49,541 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 02:10:49,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 02:10:49,592 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-07 02:10:49,595 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 02:10:49,596 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 02:10:49,619 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 02:10:49,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/mathsat -unsat_core_generation=3 [2021-11-07 02:10:49,818 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-11-07 02:10:49,822 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 02:10:49,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 02:10:49 BoogieIcfgContainer [2021-11-07 02:10:49,848 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 02:10:49,853 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 02:10:49,853 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 02:10:49,854 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 02:10:49,855 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:10:49" (3/4) ... [2021-11-07 02:10:49,857 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-07 02:10:49,907 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/witness.graphml [2021-11-07 02:10:49,909 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 02:10:49,919 INFO L168 Benchmark]: Toolchain (without parser) took 1390.34 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 35.1 MB in the beginning and 45.1 MB in the end (delta: -10.0 MB). Peak memory consumption was 2.5 MB. Max. memory is 16.1 GB. [2021-11-07 02:10:49,919 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 56.6 MB. Free memory is still 38.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:10:49,922 INFO L168 Benchmark]: CACSL2BoogieTranslator took 245.15 ms. Allocated memory is still 56.6 MB. Free memory was 35.0 MB in the beginning and 25.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 02:10:49,923 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.25 ms. Allocated memory is still 56.6 MB. Free memory was 25.3 MB in the beginning and 40.3 MB in the end (delta: -15.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 02:10:49,924 INFO L168 Benchmark]: Boogie Preprocessor took 64.14 ms. Allocated memory is still 56.6 MB. Free memory was 40.3 MB in the beginning and 39.3 MB in the end (delta: 961.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:10:49,925 INFO L168 Benchmark]: RCFGBuilder took 348.15 ms. Allocated memory is still 56.6 MB. Free memory was 39.1 MB in the beginning and 30.5 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 02:10:49,929 INFO L168 Benchmark]: TraceAbstraction took 589.85 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 29.9 MB in the beginning and 46.7 MB in the end (delta: -16.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 02:10:49,930 INFO L168 Benchmark]: Witness Printer took 55.74 ms. Allocated memory is still 69.2 MB. Free memory was 46.7 MB in the beginning and 45.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 02:10:49,939 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 56.6 MB. Free memory is still 38.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 245.15 ms. Allocated memory is still 56.6 MB. Free memory was 35.0 MB in the beginning and 25.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.25 ms. Allocated memory is still 56.6 MB. Free memory was 25.3 MB in the beginning and 40.3 MB in the end (delta: -15.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 64.14 ms. Allocated memory is still 56.6 MB. Free memory was 40.3 MB in the beginning and 39.3 MB in the end (delta: 961.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 348.15 ms. Allocated memory is still 56.6 MB. Free memory was 39.1 MB in the beginning and 30.5 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 589.85 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 29.9 MB in the beginning and 46.7 MB in the end (delta: -16.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 55.74 ms. Allocated memory is still 69.2 MB. Free memory was 46.7 MB in the beginning and 45.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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 - CounterExampleResult [Line: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L12] float x; [L13] x = __VERIFIER_nondet_float() [L8] COND TRUE !(cond) [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 4 NumberOfCodeBlocks, 4 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 proved your program to be incorrect! [2021-11-07 02:10:49,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bb781951-a3b5-401a-970f-3eeb50e40b0f/bin/utaipan-UUZaoUuFF8/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE