./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/nan_double.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a4232596288b496aee224c4b4f91c0d4dc8bab0d40c539eda179d1ef3a227da3 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 22:00:59,331 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 22:00:59,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 22:00:59,360 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 22:00:59,361 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 22:00:59,363 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 22:00:59,364 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 22:00:59,367 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 22:00:59,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 22:00:59,370 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 22:00:59,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 22:00:59,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 22:00:59,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 22:00:59,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 22:00:59,375 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 22:00:59,377 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 22:00:59,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 22:00:59,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 22:00:59,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 22:00:59,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 22:00:59,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 22:00:59,387 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 22:00:59,389 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 22:00:59,390 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 22:00:59,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 22:00:59,394 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 22:00:59,395 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 22:00:59,396 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 22:00:59,396 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 22:00:59,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 22:00:59,398 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 22:00:59,399 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 22:00:59,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 22:00:59,400 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 22:00:59,401 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 22:00:59,401 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 22:00:59,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 22:00:59,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 22:00:59,402 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 22:00:59,403 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 22:00:59,403 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 22:00:59,404 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 22:00:59,427 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 22:00:59,427 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 22:00:59,427 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 22:00:59,428 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 22:00:59,428 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 22:00:59,428 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 22:00:59,429 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 22:00:59,429 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 22:00:59,429 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 22:00:59,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 22:00:59,430 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 22:00:59,430 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 22:00:59,430 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 22:00:59,430 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 22:00:59,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 22:00:59,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 22:00:59,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 22:00:59,431 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 22:00:59,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 22:00:59,431 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 22:00:59,431 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 22:00:59,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 22:00:59,432 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 22:00:59,432 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 22:00:59,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:00:59,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 22:00:59,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 22:00:59,432 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 22:00:59,432 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 22:00:59,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 22:00:59,433 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 22:00:59,433 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 22:00:59,433 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 22:00:59,433 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 22:00:59,433 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4232596288b496aee224c4b4f91c0d4dc8bab0d40c539eda179d1ef3a227da3 [2021-12-06 22:00:59,628 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 22:00:59,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 22:00:59,645 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 22:00:59,646 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 22:00:59,647 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 22:00:59,648 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/float-benchs/nan_double.c [2021-12-06 22:00:59,693 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/data/a04cd85a7/f68f53d058414518ad17dc30f95852df/FLAGd6859b5f5 [2021-12-06 22:01:00,068 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 22:01:00,068 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/sv-benchmarks/c/float-benchs/nan_double.c [2021-12-06 22:01:00,073 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/data/a04cd85a7/f68f53d058414518ad17dc30f95852df/FLAGd6859b5f5 [2021-12-06 22:01:00,082 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/data/a04cd85a7/f68f53d058414518ad17dc30f95852df [2021-12-06 22:01:00,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 22:01:00,085 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 22:01:00,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 22:01:00,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 22:01:00,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 22:01:00,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:01:00" (1/1) ... [2021-12-06 22:01:00,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6993d235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:00, skipping insertion in model container [2021-12-06 22:01:00,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:01:00" (1/1) ... [2021-12-06 22:01:00,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 22:01:00,104 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:01:00,211 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_f5615dd0-32d0-453b-8ade-eaf32a655200/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2021-12-06 22:01:00,218 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:01:00,224 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 22:01:00,232 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_f5615dd0-32d0-453b-8ade-eaf32a655200/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2021-12-06 22:01:00,233 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:01:00,243 INFO L208 MainTranslator]: Completed translation [2021-12-06 22:01:00,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:00 WrapperNode [2021-12-06 22:01:00,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 22:01:00,244 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 22:01:00,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 22:01:00,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 22:01:00,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:00" (1/1) ... [2021-12-06 22:01:00,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:00" (1/1) ... [2021-12-06 22:01:00,266 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2021-12-06 22:01:00,267 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 22:01:00,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 22:01:00,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 22:01:00,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 22:01:00,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:00" (1/1) ... [2021-12-06 22:01:00,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:00" (1/1) ... [2021-12-06 22:01:00,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:00" (1/1) ... [2021-12-06 22:01:00,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:00" (1/1) ... [2021-12-06 22:01:00,277 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:00" (1/1) ... [2021-12-06 22:01:00,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:00" (1/1) ... [2021-12-06 22:01:00,279 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:00" (1/1) ... [2021-12-06 22:01:00,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 22:01:00,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 22:01:00,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 22:01:00,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 22:01:00,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:00" (1/1) ... [2021-12-06 22:01:00,288 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:01:00,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:01:00,305 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 22:01:00,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 22:01:00,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 22:01:00,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 22:01:00,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 22:01:00,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 22:01:00,376 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 22:01:00,377 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 22:01:00,428 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 22:01:00,433 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 22:01:00,433 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 22:01:00,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:01:00 BoogieIcfgContainer [2021-12-06 22:01:00,434 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 22:01:00,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 22:01:00,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 22:01:00,439 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 22:01:00,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 10:01:00" (1/3) ... [2021-12-06 22:01:00,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31650ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:01:00, skipping insertion in model container [2021-12-06 22:01:00,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:00" (2/3) ... [2021-12-06 22:01:00,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31650ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:01:00, skipping insertion in model container [2021-12-06 22:01:00,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:01:00" (3/3) ... [2021-12-06 22:01:00,441 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2021-12-06 22:01:00,446 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 22:01:00,446 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 22:01:00,484 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 22:01:00,490 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=PETRI_NET, 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 [2021-12-06 22:01:00,490 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 22:01:00,500 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) [2021-12-06 22:01:00,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-12-06 22:01:00,504 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:01:00,504 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-12-06 22:01:00,505 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:01:00,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:01:00,509 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-12-06 22:01:00,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 22:01:00,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480752146] [2021-12-06 22:01:00,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:01:00,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 22:01:00,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:01:00,589 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:01:00,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:01:00,612 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 22:01:00,614 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 22:01:00,615 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 22:01:00,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 22:01:00,625 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-12-06 22:01:00,628 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 22:01:00,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 10:01:00 BoogieIcfgContainer [2021-12-06 22:01:00,642 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 22:01:00,642 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 22:01:00,642 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 22:01:00,643 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 22:01:00,643 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:01:00" (3/4) ... [2021-12-06 22:01:00,645 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 22:01:00,646 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 22:01:00,647 INFO L158 Benchmark]: Toolchain (without parser) took 560.97ms. Allocated memory was 90.2MB in the beginning and 117.4MB in the end (delta: 27.3MB). Free memory was 57.8MB in the beginning and 94.6MB in the end (delta: -36.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:01:00,647 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 90.2MB. Free memory was 47.6MB in the beginning and 47.6MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:01:00,648 INFO L158 Benchmark]: CACSL2BoogieTranslator took 156.75ms. Allocated memory is still 90.2MB. Free memory was 57.7MB in the beginning and 67.2MB in the end (delta: -9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 22:01:00,649 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.94ms. Allocated memory is still 90.2MB. Free memory was 67.2MB in the beginning and 65.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 22:01:00,649 INFO L158 Benchmark]: Boogie Preprocessor took 12.54ms. Allocated memory is still 90.2MB. Free memory was 65.9MB in the beginning and 65.0MB in the end (delta: 886.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:01:00,650 INFO L158 Benchmark]: RCFGBuilder took 153.82ms. Allocated memory is still 90.2MB. Free memory was 64.8MB in the beginning and 56.9MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-06 22:01:00,650 INFO L158 Benchmark]: TraceAbstraction took 205.85ms. Allocated memory was 90.2MB in the beginning and 117.4MB in the end (delta: 27.3MB). Free memory was 56.4MB in the beginning and 95.0MB in the end (delta: -38.6MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2021-12-06 22:01:00,651 INFO L158 Benchmark]: Witness Printer took 3.53ms. Allocated memory is still 117.4MB. Free memory was 94.9MB in the beginning and 94.6MB in the end (delta: 322.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:01:00,654 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 90.2MB. Free memory was 47.6MB in the beginning and 47.6MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 156.75ms. Allocated memory is still 90.2MB. Free memory was 57.7MB in the beginning and 67.2MB in the end (delta: -9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.94ms. Allocated memory is still 90.2MB. Free memory was 67.2MB in the beginning and 65.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 12.54ms. Allocated memory is still 90.2MB. Free memory was 65.9MB in the beginning and 65.0MB in the end (delta: 886.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 153.82ms. Allocated memory is still 90.2MB. Free memory was 64.8MB in the beginning and 56.9MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 205.85ms. Allocated memory was 90.2MB in the beginning and 117.4MB in the end (delta: 27.3MB). Free memory was 56.4MB in the beginning and 95.0MB in the end (delta: -38.6MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * Witness Printer took 3.53ms. Allocated memory is still 117.4MB. Free memory was 94.9MB in the beginning and 94.6MB in the end (delta: 322.4kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 8]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 15. Possible FailurePath: [L12] double x; [L13] x = __VERIFIER_nondet_double() [L15] CALL __VERIFIER_assert(x==x) [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, 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=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 could not prove your program: unable to determine feasibility of some traces [2021-12-06 22:01:00,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/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_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_double.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a4232596288b496aee224c4b4f91c0d4dc8bab0d40c539eda179d1ef3a227da3 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 22:01:02,250 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 22:01:02,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 22:01:02,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 22:01:02,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 22:01:02,275 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 22:01:02,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 22:01:02,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 22:01:02,279 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 22:01:02,280 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 22:01:02,281 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 22:01:02,282 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 22:01:02,282 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 22:01:02,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 22:01:02,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 22:01:02,285 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 22:01:02,286 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 22:01:02,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 22:01:02,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 22:01:02,301 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 22:01:02,302 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 22:01:02,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 22:01:02,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 22:01:02,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 22:01:02,309 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 22:01:02,309 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 22:01:02,309 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 22:01:02,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 22:01:02,311 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 22:01:02,312 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 22:01:02,312 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 22:01:02,313 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 22:01:02,313 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 22:01:02,314 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 22:01:02,315 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 22:01:02,315 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 22:01:02,316 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 22:01:02,316 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 22:01:02,316 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 22:01:02,317 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 22:01:02,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 22:01:02,319 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-06 22:01:02,338 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 22:01:02,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 22:01:02,338 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 22:01:02,339 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 22:01:02,339 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 22:01:02,339 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 22:01:02,340 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 22:01:02,340 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 22:01:02,340 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 22:01:02,340 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 22:01:02,340 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 22:01:02,340 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 22:01:02,341 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 22:01:02,341 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 22:01:02,341 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 22:01:02,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 22:01:02,341 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 22:01:02,341 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-06 22:01:02,341 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-06 22:01:02,341 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 22:01:02,342 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 22:01:02,342 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 22:01:02,342 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 22:01:02,342 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 22:01:02,342 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 22:01:02,342 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 22:01:02,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:01:02,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 22:01:02,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 22:01:02,343 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 22:01:02,343 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-06 22:01:02,343 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-06 22:01:02,343 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 22:01:02,343 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 22:01:02,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 22:01:02,343 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 22:01:02,344 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-06 22:01:02,344 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_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a4232596288b496aee224c4b4f91c0d4dc8bab0d40c539eda179d1ef3a227da3 [2021-12-06 22:01:02,571 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 22:01:02,585 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 22:01:02,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 22:01:02,588 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 22:01:02,588 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 22:01:02,589 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/float-benchs/nan_double.c [2021-12-06 22:01:02,632 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/data/4ecf5d92a/32dba237b95242e39d729b2c5510a7d3/FLAG14b3f88f7 [2021-12-06 22:01:03,013 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 22:01:03,013 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/sv-benchmarks/c/float-benchs/nan_double.c [2021-12-06 22:01:03,018 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/data/4ecf5d92a/32dba237b95242e39d729b2c5510a7d3/FLAG14b3f88f7 [2021-12-06 22:01:03,027 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/data/4ecf5d92a/32dba237b95242e39d729b2c5510a7d3 [2021-12-06 22:01:03,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 22:01:03,030 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 22:01:03,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 22:01:03,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 22:01:03,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 22:01:03,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:01:03" (1/1) ... [2021-12-06 22:01:03,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@94408ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:03, skipping insertion in model container [2021-12-06 22:01:03,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 10:01:03" (1/1) ... [2021-12-06 22:01:03,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 22:01:03,055 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 22:01:03,148 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_f5615dd0-32d0-453b-8ade-eaf32a655200/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2021-12-06 22:01:03,154 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:01:03,169 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 22:01:03,178 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_f5615dd0-32d0-453b-8ade-eaf32a655200/sv-benchmarks/c/float-benchs/nan_double.c[434,447] [2021-12-06 22:01:03,183 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 22:01:03,194 INFO L208 MainTranslator]: Completed translation [2021-12-06 22:01:03,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:03 WrapperNode [2021-12-06 22:01:03,194 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 22:01:03,195 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 22:01:03,195 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 22:01:03,195 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 22:01:03,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:03" (1/1) ... [2021-12-06 22:01:03,207 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:03" (1/1) ... [2021-12-06 22:01:03,218 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 23 [2021-12-06 22:01:03,218 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 22:01:03,219 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 22:01:03,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 22:01:03,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 22:01:03,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:03" (1/1) ... [2021-12-06 22:01:03,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:03" (1/1) ... [2021-12-06 22:01:03,227 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:03" (1/1) ... [2021-12-06 22:01:03,227 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:03" (1/1) ... [2021-12-06 22:01:03,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:03" (1/1) ... [2021-12-06 22:01:03,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:03" (1/1) ... [2021-12-06 22:01:03,233 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:03" (1/1) ... [2021-12-06 22:01:03,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 22:01:03,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 22:01:03,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 22:01:03,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 22:01:03,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:03" (1/1) ... [2021-12-06 22:01:03,242 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 22:01:03,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 22:01:03,259 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 22:01:03,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 22:01:03,289 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 22:01:03,289 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-06 22:01:03,290 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 22:01:03,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 22:01:03,339 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 22:01:03,341 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 22:01:03,394 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 22:01:03,399 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 22:01:03,399 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-06 22:01:03,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:01:03 BoogieIcfgContainer [2021-12-06 22:01:03,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 22:01:03,403 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 22:01:03,403 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 22:01:03,405 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 22:01:03,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 10:01:03" (1/3) ... [2021-12-06 22:01:03,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bc59e6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:01:03, skipping insertion in model container [2021-12-06 22:01:03,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 10:01:03" (2/3) ... [2021-12-06 22:01:03,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bc59e6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 10:01:03, skipping insertion in model container [2021-12-06 22:01:03,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:01:03" (3/3) ... [2021-12-06 22:01:03,408 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_double.c [2021-12-06 22:01:03,412 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 22:01:03,412 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-06 22:01:03,460 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 22:01:03,467 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=PETRI_NET, 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 [2021-12-06 22:01:03,467 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-06 22:01:03,480 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) [2021-12-06 22:01:03,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-12-06 22:01:03,485 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 22:01:03,486 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-12-06 22:01:03,486 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 22:01:03,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 22:01:03,493 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-12-06 22:01:03,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 22:01:03,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1248568838] [2021-12-06 22:01:03,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 22:01:03,507 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 22:01:03,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 22:01:03,508 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 22:01:03,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-06 22:01:03,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:01:03,559 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 22:01:03,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 22:01:03,598 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-12-06 22:01:03,601 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 22:01:03,602 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-06 22:01:03,618 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-06 22:01:03,805 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 22:01:03,808 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-12-06 22:01:03,811 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 22:01:03,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 10:01:03 BoogieIcfgContainer [2021-12-06 22:01:03,823 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 22:01:03,824 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 22:01:03,824 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 22:01:03,824 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 22:01:03,824 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 10:01:03" (3/4) ... [2021-12-06 22:01:03,826 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-06 22:01:03,849 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 22:01:03,849 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 22:01:03,850 INFO L158 Benchmark]: Toolchain (without parser) took 819.43ms. Allocated memory was 56.6MB in the beginning and 81.8MB in the end (delta: 25.2MB). Free memory was 35.3MB in the beginning and 55.3MB in the end (delta: -19.9MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2021-12-06 22:01:03,850 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 56.6MB. Free memory is still 37.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:01:03,851 INFO L158 Benchmark]: CACSL2BoogieTranslator took 163.22ms. Allocated memory is still 56.6MB. Free memory was 35.0MB in the beginning and 39.8MB in the end (delta: -4.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-06 22:01:03,851 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.41ms. Allocated memory is still 56.6MB. Free memory was 39.8MB in the beginning and 38.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:01:03,852 INFO L158 Benchmark]: Boogie Preprocessor took 15.53ms. Allocated memory is still 56.6MB. Free memory was 38.4MB in the beginning and 37.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 22:01:03,852 INFO L158 Benchmark]: RCFGBuilder took 166.08ms. Allocated memory is still 56.6MB. Free memory was 37.3MB in the beginning and 29.7MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-06 22:01:03,853 INFO L158 Benchmark]: TraceAbstraction took 420.60ms. Allocated memory was 56.6MB in the beginning and 81.8MB in the end (delta: 25.2MB). Free memory was 29.2MB in the beginning and 56.6MB in the end (delta: -27.4MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. [2021-12-06 22:01:03,853 INFO L158 Benchmark]: Witness Printer took 25.35ms. Allocated memory is still 81.8MB. Free memory was 56.6MB in the beginning and 55.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 22:01:03,856 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 56.6MB. Free memory is still 37.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 163.22ms. Allocated memory is still 56.6MB. Free memory was 35.0MB in the beginning and 39.8MB in the end (delta: -4.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.41ms. Allocated memory is still 56.6MB. Free memory was 39.8MB in the beginning and 38.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.53ms. Allocated memory is still 56.6MB. Free memory was 38.4MB in the beginning and 37.3MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 166.08ms. Allocated memory is still 56.6MB. Free memory was 37.3MB in the beginning and 29.7MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 420.60ms. Allocated memory was 56.6MB in the beginning and 81.8MB in the end (delta: 25.2MB). Free memory was 29.2MB in the beginning and 56.6MB in the end (delta: -27.4MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. * Witness Printer took 25.35ms. Allocated memory is still 81.8MB. Free memory was 56.6MB in the beginning and 55.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L12] double x; [L13] x = __VERIFIER_nondet_double() [L15] CALL __VERIFIER_assert(x==x) [L8] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L8] reach_error() VAL [\old(cond)=0, cond=0] - 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: , 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! [2021-12-06 22:01:03,884 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5615dd0-32d0-453b-8ade-eaf32a655200/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE