./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs --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 4afff0c8dc116ae0ea52d5228669475b8e2bd0f7c5a38e0115f3b3d6e8e4ef72 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:38:27,214 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:38:27,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:38:27,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:38:27,258 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:38:27,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:38:27,262 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:38:27,265 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:38:27,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:38:27,269 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:38:27,271 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:38:27,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:38:27,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:38:27,275 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:38:27,277 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:38:27,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:38:27,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:38:27,295 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:38:27,297 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:38:27,304 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:38:27,307 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:38:27,322 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:38:27,324 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:38:27,326 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:38:27,330 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:38:27,337 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:38:27,337 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:38:27,339 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:38:27,341 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:38:27,342 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:38:27,344 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:38:27,346 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:38:27,348 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:38:27,349 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:38:27,351 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:38:27,352 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:38:27,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:38:27,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:38:27,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:38:27,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:38:27,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:38:27,357 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 14:38:27,398 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:38:27,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:38:27,400 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:38:27,400 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:38:27,400 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:38:27,400 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:38:27,401 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:38:27,401 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:38:27,401 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:38:27,402 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:38:27,402 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:38:27,402 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:38:27,402 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:38:27,403 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:38:27,403 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:38:27,403 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:38:27,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:38:27,405 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:38:27,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:38:27,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:38:27,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:38:27,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:38:27,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:38:27,406 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:38:27,407 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:38:27,407 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:38:27,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:38:27,407 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:38:27,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:38:27,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:38:27,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:38:27,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:38:27,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:38:27,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:38:27,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:38:27,410 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:38:27,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:38:27,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:38:27,411 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:38:27,411 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:38:27,411 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_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4afff0c8dc116ae0ea52d5228669475b8e2bd0f7c5a38e0115f3b3d6e8e4ef72 [2021-11-19 14:38:27,772 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:38:27,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:38:27,827 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:38:27,828 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:38:27,829 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:38:27,831 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c [2021-11-19 14:38:27,916 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/data/a9fe6b2ea/649c1c94899643d3aa5345e725f34730/FLAGb580df3e9 [2021-11-19 14:38:28,516 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:38:28,517 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c [2021-11-19 14:38:28,528 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/data/a9fe6b2ea/649c1c94899643d3aa5345e725f34730/FLAGb580df3e9 [2021-11-19 14:38:28,833 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/data/a9fe6b2ea/649c1c94899643d3aa5345e725f34730 [2021-11-19 14:38:28,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:38:28,838 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:38:28,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:38:28,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:38:28,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:38:28,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:38:28" (1/1) ... [2021-11-19 14:38:28,863 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2733f75f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:28, skipping insertion in model container [2021-11-19 14:38:28,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:38:28" (1/1) ... [2021-11-19 14:38:28,873 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:38:28,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:38:29,114 WARN L230 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_ae0e4602-5b16-46b7-816d-d499ffa11089/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[1999,2012] [2021-11-19 14:38:29,120 WARN L230 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_ae0e4602-5b16-46b7-816d-d499ffa11089/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[2368,2381] [2021-11-19 14:38:29,170 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:38:29,191 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:38:29,222 WARN L230 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_ae0e4602-5b16-46b7-816d-d499ffa11089/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[1999,2012] [2021-11-19 14:38:29,224 WARN L230 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_ae0e4602-5b16-46b7-816d-d499ffa11089/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[2368,2381] [2021-11-19 14:38:29,269 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:38:29,285 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:38:29,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:29 WrapperNode [2021-11-19 14:38:29,285 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:38:29,286 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:38:29,287 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:38:29,287 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:38:29,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:29" (1/1) ... [2021-11-19 14:38:29,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:29" (1/1) ... [2021-11-19 14:38:29,339 INFO L137 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 133 [2021-11-19 14:38:29,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:38:29,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:38:29,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:38:29,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:38:29,354 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:29" (1/1) ... [2021-11-19 14:38:29,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:29" (1/1) ... [2021-11-19 14:38:29,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:29" (1/1) ... [2021-11-19 14:38:29,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:29" (1/1) ... [2021-11-19 14:38:29,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:29" (1/1) ... [2021-11-19 14:38:29,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:29" (1/1) ... [2021-11-19 14:38:29,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:29" (1/1) ... [2021-11-19 14:38:29,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:38:29,427 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:38:29,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:38:29,428 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:38:29,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:29" (1/1) ... [2021-11-19 14:38:29,455 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:38:29,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:38:29,494 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:38:29,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:38:29,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:38:29,577 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2021-11-19 14:38:29,577 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2021-11-19 14:38:29,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 14:38:29,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:38:29,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:38:29,578 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 14:38:29,578 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 14:38:29,712 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:38:29,714 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:38:30,065 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:38:30,196 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:38:30,197 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-19 14:38:30,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:38:30 BoogieIcfgContainer [2021-11-19 14:38:30,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:38:30,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:38:30,202 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:38:30,207 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:38:30,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:38:28" (1/3) ... [2021-11-19 14:38:30,208 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11048318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:38:30, skipping insertion in model container [2021-11-19 14:38:30,208 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:29" (2/3) ... [2021-11-19 14:38:30,209 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11048318 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:38:30, skipping insertion in model container [2021-11-19 14:38:30,209 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:38:30" (3/3) ... [2021-11-19 14:38:30,211 INFO L111 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_5a.c.cil.c [2021-11-19 14:38:30,217 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:38:30,218 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-19 14:38:30,296 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:38:30,317 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 [2021-11-19 14:38:30,324 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-19 14:38:30,354 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 35 states have (on average 1.5714285714285714) internal successors, (55), 38 states have internal predecessors, (55), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-19 14:38:30,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-19 14:38:30,360 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:38:30,361 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-19 14:38:30,362 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:38:30,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:38:30,369 INFO L85 PathProgramCache]: Analyzing trace with hash 7146571, now seen corresponding path program 1 times [2021-11-19 14:38:30,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:38:30,382 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139572332] [2021-11-19 14:38:30,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:38:30,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:38:30,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:38:30,505 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 14:38:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:38:30,551 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-19 14:38:30,554 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 14:38:30,555 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-19 14:38:30,558 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-19 14:38:30,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 14:38:30,565 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-19 14:38:30,568 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 14:38:30,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:38:30 BoogieIcfgContainer [2021-11-19 14:38:30,593 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 14:38:30,594 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 14:38:30,594 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 14:38:30,594 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 14:38:30,595 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:38:30" (3/4) ... [2021-11-19 14:38:30,599 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 14:38:30,599 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 14:38:30,601 INFO L158 Benchmark]: Toolchain (without parser) took 1762.59ms. Allocated memory was 96.5MB in the beginning and 138.4MB in the end (delta: 41.9MB). Free memory was 53.2MB in the beginning and 89.0MB in the end (delta: -35.8MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2021-11-19 14:38:30,602 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 96.5MB. Free memory is still 70.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:38:30,603 INFO L158 Benchmark]: CACSL2BoogieTranslator took 430.03ms. Allocated memory was 96.5MB in the beginning and 138.4MB in the end (delta: 41.9MB). Free memory was 53.0MB in the beginning and 108.0MB in the end (delta: -55.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-19 14:38:30,603 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.16ms. Allocated memory is still 138.4MB. Free memory was 108.0MB in the beginning and 105.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:38:30,604 INFO L158 Benchmark]: Boogie Preprocessor took 85.99ms. Allocated memory is still 138.4MB. Free memory was 105.9MB in the beginning and 104.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:38:30,605 INFO L158 Benchmark]: RCFGBuilder took 772.98ms. Allocated memory is still 138.4MB. Free memory was 104.5MB in the beginning and 103.0MB in the end (delta: 1.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-19 14:38:30,606 INFO L158 Benchmark]: TraceAbstraction took 390.72ms. Allocated memory is still 138.4MB. Free memory was 102.3MB in the beginning and 89.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 14:38:30,607 INFO L158 Benchmark]: Witness Printer took 5.73ms. Allocated memory is still 138.4MB. Free memory was 89.7MB in the beginning and 89.0MB in the end (delta: 758.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:38:30,612 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 96.5MB. Free memory is still 70.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 430.03ms. Allocated memory was 96.5MB in the beginning and 138.4MB in the end (delta: 41.9MB). Free memory was 53.0MB in the beginning and 108.0MB in the end (delta: -55.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.16ms. Allocated memory is still 138.4MB. Free memory was 108.0MB in the beginning and 105.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 85.99ms. Allocated memory is still 138.4MB. Free memory was 105.9MB in the beginning and 104.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 772.98ms. Allocated memory is still 138.4MB. Free memory was 104.5MB in the beginning and 103.0MB in the end (delta: 1.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 390.72ms. Allocated memory is still 138.4MB. Free memory was 102.3MB in the beginning and 89.7MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 5.73ms. Allocated memory is still 138.4MB. Free memory was 89.7MB in the beginning and 89.0MB in the end (delta: 758.0kB). 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: 48]: 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 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=49, x=49] [L47] COND TRUE !(result >= 0.0f && result < 1.39843f) VAL [IN=49, x=49] [L48] reach_error() VAL [IN=49, x=49] - UnprovableResult [Line: 60]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 45 locations, 2 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: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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 could not prove your program: unable to determine feasibility of some traces [2021-11-19 14:38:30,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/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_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs --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 4afff0c8dc116ae0ea52d5228669475b8e2bd0f7c5a38e0115f3b3d6e8e4ef72 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:38:33,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:38:33,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:38:33,461 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:38:33,462 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:38:33,464 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:38:33,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:38:33,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:38:33,472 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:38:33,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:38:33,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:38:33,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:38:33,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:38:33,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:38:33,483 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:38:33,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:38:33,486 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:38:33,488 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:38:33,506 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:38:33,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:38:33,512 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:38:33,514 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:38:33,517 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:38:33,518 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:38:33,523 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:38:33,524 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:38:33,524 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:38:33,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:38:33,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:38:33,529 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:38:33,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:38:33,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:38:33,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:38:33,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:38:33,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:38:33,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:38:33,538 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:38:33,538 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:38:33,539 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:38:33,540 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:38:33,542 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:38:33,543 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-19 14:38:33,579 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:38:33,579 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:38:33,581 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:38:33,581 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:38:33,582 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:38:33,582 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:38:33,583 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:38:33,583 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:38:33,584 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:38:33,584 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:38:33,585 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:38:33,586 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:38:33,586 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:38:33,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:38:33,587 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:38:33,587 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:38:33,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:38:33,588 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:38:33,589 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:38:33,589 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:38:33,590 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:38:33,590 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:38:33,590 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:38:33,591 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:38:33,591 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:38:33,592 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:38:33,592 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:38:33,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:38:33,593 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:38:33,593 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:38:33,594 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:38:33,594 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:38:33,594 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:38:33,595 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:38:33,595 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:38:33,596 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:38:33,596 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_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4afff0c8dc116ae0ea52d5228669475b8e2bd0f7c5a38e0115f3b3d6e8e4ef72 [2021-11-19 14:38:34,125 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:38:34,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:38:34,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:38:34,164 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:38:34,165 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:38:34,166 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c [2021-11-19 14:38:34,240 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/data/0aede97a4/170422f531124b3b8787af380cdcdbcc/FLAG8e36909c4 [2021-11-19 14:38:34,830 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:38:34,831 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c [2021-11-19 14:38:34,840 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/data/0aede97a4/170422f531124b3b8787af380cdcdbcc/FLAG8e36909c4 [2021-11-19 14:38:35,141 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/data/0aede97a4/170422f531124b3b8787af380cdcdbcc [2021-11-19 14:38:35,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:38:35,146 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:38:35,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:38:35,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:38:35,153 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:38:35,154 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:38:35" (1/1) ... [2021-11-19 14:38:35,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7738b20c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:35, skipping insertion in model container [2021-11-19 14:38:35,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:38:35" (1/1) ... [2021-11-19 14:38:35,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:38:35,205 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:38:35,407 WARN L230 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_ae0e4602-5b16-46b7-816d-d499ffa11089/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[1999,2012] [2021-11-19 14:38:35,413 WARN L230 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_ae0e4602-5b16-46b7-816d-d499ffa11089/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[2368,2381] [2021-11-19 14:38:35,466 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:38:35,514 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:38:35,559 WARN L230 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_ae0e4602-5b16-46b7-816d-d499ffa11089/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[1999,2012] [2021-11-19 14:38:35,561 WARN L230 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_ae0e4602-5b16-46b7-816d-d499ffa11089/sv-benchmarks/c/combinations/square_3+soft_float_5a.c.cil.c[2368,2381] [2021-11-19 14:38:35,596 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:38:35,616 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:38:35,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:35 WrapperNode [2021-11-19 14:38:35,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:38:35,620 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:38:35,620 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:38:35,620 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:38:35,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:35" (1/1) ... [2021-11-19 14:38:35,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:35" (1/1) ... [2021-11-19 14:38:35,677 INFO L137 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2021-11-19 14:38:35,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:38:35,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:38:35,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:38:35,679 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:38:35,695 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:35" (1/1) ... [2021-11-19 14:38:35,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:35" (1/1) ... [2021-11-19 14:38:35,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:35" (1/1) ... [2021-11-19 14:38:35,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:35" (1/1) ... [2021-11-19 14:38:35,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:35" (1/1) ... [2021-11-19 14:38:35,736 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:35" (1/1) ... [2021-11-19 14:38:35,740 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:35" (1/1) ... [2021-11-19 14:38:35,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:38:35,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:38:35,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:38:35,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:38:35,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:35" (1/1) ... [2021-11-19 14:38:35,760 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:38:35,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:38:35,806 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:38:35,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:38:35,858 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:38:35,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:38:35,866 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2021-11-19 14:38:35,867 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2021-11-19 14:38:35,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:38:35,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:38:35,868 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-19 14:38:35,868 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-19 14:38:35,973 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:38:35,975 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:38:38,652 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:38:38,662 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:38:38,662 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-19 14:38:38,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:38:38 BoogieIcfgContainer [2021-11-19 14:38:38,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:38:38,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:38:38,668 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:38:38,671 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:38:38,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:38:35" (1/3) ... [2021-11-19 14:38:38,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e594c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:38:38, skipping insertion in model container [2021-11-19 14:38:38,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:38:35" (2/3) ... [2021-11-19 14:38:38,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e594c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:38:38, skipping insertion in model container [2021-11-19 14:38:38,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:38:38" (3/3) ... [2021-11-19 14:38:38,676 INFO L111 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_5a.c.cil.c [2021-11-19 14:38:38,682 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:38:38,683 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-19 14:38:38,744 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:38:38,753 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 [2021-11-19 14:38:38,753 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-19 14:38:38,776 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-11-19 14:38:38,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 14:38:38,781 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:38:38,782 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:38:38,783 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:38:38,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:38:38,790 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2021-11-19 14:38:38,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:38:38,805 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296315470] [2021-11-19 14:38:38,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:38:38,807 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:38:38,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:38:38,811 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:38:38,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:38:39,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:38:39,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 14:38:39,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:38:39,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:38:39,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:38:39,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:38:39,525 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:38:39,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296315470] [2021-11-19 14:38:39,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [296315470] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:38:39,526 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:38:39,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 14:38:39,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351812578] [2021-11-19 14:38:39,529 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:38:39,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 14:38:39,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:38:39,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 14:38:39,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:38:39,564 INFO L87 Difference]: Start difference. First operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-11-19 14:38:39,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:38:39,626 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions. [2021-11-19 14:38:39,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 14:38:39,629 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) Word has length 7 [2021-11-19 14:38:39,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:38:39,637 INFO L225 Difference]: With dead ends: 117 [2021-11-19 14:38:39,638 INFO L226 Difference]: Without dead ends: 52 [2021-11-19 14:38:39,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:38:39,662 INFO L933 BasicCegarLoop]: 82 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, 82 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 [2021-11-19 14:38:39,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:38:39,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-11-19 14:38:39,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-11-19 14:38:39,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-19 14:38:39,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2021-11-19 14:38:39,748 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7 [2021-11-19 14:38:39,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:38:39,749 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2021-11-19 14:38:39,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-11-19 14:38:39,749 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2021-11-19 14:38:39,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-19 14:38:39,750 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:38:39,750 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:38:39,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:38:39,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:38:39,967 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:38:39,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:38:39,968 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2021-11-19 14:38:39,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:38:39,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1180771571] [2021-11-19 14:38:39,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:38:39,970 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:38:39,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:38:39,981 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:38:39,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:40:34,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:40:34,908 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 14:46:55,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:46:55,506 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-19 14:46:55,507 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 14:46:55,509 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-19 14:46:55,511 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-19 14:46:55,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-19 14:46:55,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:46:55,715 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-19 14:46:55,719 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 14:46:55,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:46:55 BoogieIcfgContainer [2021-11-19 14:46:55,759 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 14:46:55,760 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 14:46:55,761 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 14:46:55,762 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 14:46:55,763 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:38:38" (3/4) ... [2021-11-19 14:46:55,769 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-19 14:46:55,824 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/witness.graphml [2021-11-19 14:46:55,824 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 14:46:55,825 INFO L158 Benchmark]: Toolchain (without parser) took 500680.38ms. Allocated memory was 52.4MB in the beginning and 77.6MB in the end (delta: 25.2MB). Free memory was 28.2MB in the beginning and 50.7MB in the end (delta: -22.6MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2021-11-19 14:46:55,826 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 52.4MB. Free memory is still 31.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:46:55,828 INFO L158 Benchmark]: CACSL2BoogieTranslator took 471.25ms. Allocated memory was 52.4MB in the beginning and 77.6MB in the end (delta: 25.2MB). Free memory was 28.0MB in the beginning and 57.4MB in the end (delta: -29.4MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2021-11-19 14:46:55,829 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.99ms. Allocated memory is still 77.6MB. Free memory was 57.4MB in the beginning and 55.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:46:55,829 INFO L158 Benchmark]: Boogie Preprocessor took 66.95ms. Allocated memory is still 77.6MB. Free memory was 55.3MB in the beginning and 53.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:46:55,830 INFO L158 Benchmark]: RCFGBuilder took 2919.23ms. Allocated memory is still 77.6MB. Free memory was 53.5MB in the beginning and 56.7MB in the end (delta: -3.2MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. [2021-11-19 14:46:55,837 INFO L158 Benchmark]: TraceAbstraction took 497091.16ms. Allocated memory is still 77.6MB. Free memory was 56.3MB in the beginning and 52.8MB in the end (delta: 3.5MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. [2021-11-19 14:46:55,837 INFO L158 Benchmark]: Witness Printer took 64.17ms. Allocated memory is still 77.6MB. Free memory was 52.8MB in the beginning and 50.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:46:55,843 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 52.4MB. Free memory is still 31.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 471.25ms. Allocated memory was 52.4MB in the beginning and 77.6MB in the end (delta: 25.2MB). Free memory was 28.0MB in the beginning and 57.4MB in the end (delta: -29.4MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.99ms. Allocated memory is still 77.6MB. Free memory was 57.4MB in the beginning and 55.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.95ms. Allocated memory is still 77.6MB. Free memory was 55.3MB in the beginning and 53.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2919.23ms. Allocated memory is still 77.6MB. Free memory was 53.5MB in the beginning and 56.7MB in the end (delta: -3.2MB). Peak memory consumption was 16.6MB. Max. memory is 16.1GB. * TraceAbstraction took 497091.16ms. Allocated memory is still 77.6MB. Free memory was 56.3MB in the beginning and 52.8MB in the end (delta: 3.5MB). Peak memory consumption was 3.0MB. Max. memory is 16.1GB. * Witness Printer took 64.17ms. Allocated memory is still 77.6MB. Free memory was 52.8MB in the beginning and 50.7MB in the end (delta: 2.1MB). 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 - CounterExampleResult [Line: 48]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=0.9999993443489075, result=1.398437261581421, x=0.9999993443489075] [L47] COND TRUE !(result >= 0.0f && result < 1.39843f) VAL [IN=0.9999993443489075, result=1.398437261581421, x=0.9999993443489075] [L48] reach_error() VAL [IN=0.9999993443489075, result=1.398437261581421, x=0.9999993443489075] - UnprovableResult [Line: 60]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 61 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 497.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 82 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, 82 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred 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: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 115.5s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2021-11-19 14:46:55,936 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae0e4602-5b16-46b7-816d-d499ffa11089/bin/utaipan-UbGMyvGFUs/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