./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/nan_float.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e .............................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/nan_float.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e .............................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 05:21:04,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:21:04,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:21:04,785 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:21:04,786 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:21:04,791 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:21:04,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:21:04,800 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:21:04,803 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:21:04,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:21:04,813 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:21:04,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:21:04,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:21:04,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:21:04,821 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:21:04,827 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:21:04,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:21:04,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:21:04,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:21:04,839 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:21:04,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:21:04,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:21:04,849 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:21:04,851 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:21:04,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:21:04,859 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:21:04,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:21:04,861 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:21:04,862 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:21:04,864 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:21:04,864 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:21:04,865 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:21:04,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:21:04,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:21:04,870 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:21:04,871 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:21:04,871 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:21:04,872 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:21:04,872 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:21:04,873 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:21:04,874 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:21:04,874 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-20 05:21:04,902 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:21:04,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:21:04,903 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:21:04,903 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:21:04,904 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:21:04,904 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:21:04,904 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-20 05:21:04,904 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:21:04,904 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:21:04,905 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-20 05:21:04,905 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-20 05:21:04,905 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:21:04,905 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-20 05:21:04,906 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-20 05:21:04,906 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-20 05:21:04,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:21:04,907 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:21:04,907 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-20 05:21:04,907 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:21:04,908 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:21:04,908 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:21:04,908 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:21:04,908 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:21:04,909 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:21:04,909 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:21:04,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:21:04,909 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:21:04,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:21:04,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:21:04,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:21:04,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:21:04,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:21:04,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:21:04,911 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:21:04,911 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-20 05:21:04,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-20 05:21:04,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:21:04,912 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:21:04,912 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:21:04,913 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_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e [2021-10-20 05:21:05,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:21:05,199 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:21:05,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:21:05,203 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:21:05,204 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:21:05,205 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/float-benchs/nan_float.c [2021-10-20 05:21:05,276 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/data/8fb80f25a/9790e995dae04487a548b0f34345777d/FLAG1edf18a3f [2021-10-20 05:21:05,820 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:21:05,822 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/sv-benchmarks/c/float-benchs/nan_float.c [2021-10-20 05:21:05,831 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/data/8fb80f25a/9790e995dae04487a548b0f34345777d/FLAG1edf18a3f [2021-10-20 05:21:06,188 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/data/8fb80f25a/9790e995dae04487a548b0f34345777d [2021-10-20 05:21:06,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:21:06,194 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:21:06,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:21:06,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:21:06,201 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:21:06,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:21:06" (1/1) ... [2021-10-20 05:21:06,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dcc78d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:21:06, skipping insertion in model container [2021-10-20 05:21:06,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:21:06" (1/1) ... [2021-10-20 05:21:06,213 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:21:06,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:21:06,392 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2021-10-20 05:21:06,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:21:06,414 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 05:21:06,429 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2021-10-20 05:21:06,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:21:06,448 INFO L208 MainTranslator]: Completed translation [2021-10-20 05:21:06,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:21:06 WrapperNode [2021-10-20 05:21:06,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:21:06,450 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 05:21:06,450 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 05:21:06,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 05:21:06,460 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:21:06" (1/1) ... [2021-10-20 05:21:06,469 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:21:06" (1/1) ... [2021-10-20 05:21:06,489 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 05:21:06,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 05:21:06,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 05:21:06,491 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 05:21:06,501 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:21:06" (1/1) ... [2021-10-20 05:21:06,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:21:06" (1/1) ... [2021-10-20 05:21:06,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:21:06" (1/1) ... [2021-10-20 05:21:06,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:21:06" (1/1) ... [2021-10-20 05:21:06,508 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:21:06" (1/1) ... [2021-10-20 05:21:06,510 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:21:06" (1/1) ... [2021-10-20 05:21:06,511 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:21:06" (1/1) ... [2021-10-20 05:21:06,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 05:21:06,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 05:21:06,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 05:21:06,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 05:21:06,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:21:06" (1/1) ... [2021-10-20 05:21:06,526 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:21:06,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:21:06,567 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 05:21:06,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 05:21:06,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 05:21:06,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 05:21:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-20 05:21:06,639 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-20 05:21:06,931 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 05:21:06,932 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-20 05:21:06,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:21:06 BoogieIcfgContainer [2021-10-20 05:21:06,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 05:21:06,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 05:21:06,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 05:21:06,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 05:21:06,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:21:06" (1/3) ... [2021-10-20 05:21:06,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222e13f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:21:06, skipping insertion in model container [2021-10-20 05:21:06,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:21:06" (2/3) ... [2021-10-20 05:21:06,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222e13f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:21:06, skipping insertion in model container [2021-10-20 05:21:06,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:21:06" (3/3) ... [2021-10-20 05:21:06,953 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float.c [2021-10-20 05:21:06,958 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 05:21:06,959 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-20 05:21:07,016 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 05:21:07,039 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 [2021-10-20 05:21:07,039 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-20 05:21:07,055 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-20 05:21:07,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-20 05:21:07,062 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:21:07,063 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-10-20 05:21:07,064 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:21:07,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:21:07,072 INFO L82 PathProgramCache]: Analyzing trace with hash 47251, now seen corresponding path program 1 times [2021-10-20 05:21:07,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-20 05:21:07,093 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475200742] [2021-10-20 05:21:07,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:21:07,105 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-20 05:21:07,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 05:21:07,286 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-20 05:21:07,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 05:21:07,363 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-20 05:21:07,369 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-20 05:21:07,371 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:21:07,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-20 05:21:07,388 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-20 05:21:07,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:21:07 BoogieIcfgContainer [2021-10-20 05:21:07,411 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-20 05:21:07,415 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-20 05:21:07,415 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-20 05:21:07,416 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-20 05:21:07,416 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:21:06" (3/4) ... [2021-10-20 05:21:07,420 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-20 05:21:07,420 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-20 05:21:07,426 INFO L168 Benchmark]: Toolchain (without parser) took 1226.43 ms. Allocated memory is still 94.4 MB. Free memory was 66.0 MB in the beginning and 67.7 MB in the end (delta: -1.7 MB). Peak memory consumption was 712.0 kB. Max. memory is 16.1 GB. [2021-10-20 05:21:07,427 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 73.4 MB. Free memory is still 52.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:21:07,429 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.93 ms. Allocated memory is still 94.4 MB. Free memory was 65.8 MB in the beginning and 56.6 MB in the end (delta: 9.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-20 05:21:07,430 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.44 ms. Allocated memory is still 94.4 MB. Free memory was 56.5 MB in the beginning and 55.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:21:07,432 INFO L168 Benchmark]: Boogie Preprocessor took 22.87 ms. Allocated memory is still 94.4 MB. Free memory was 55.1 MB in the beginning and 54.2 MB in the end (delta: 902.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:21:07,433 INFO L168 Benchmark]: RCFGBuilder took 429.54 ms. Allocated memory is still 94.4 MB. Free memory was 54.2 MB in the beginning and 44.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-20 05:21:07,434 INFO L168 Benchmark]: TraceAbstraction took 465.55 ms. Allocated memory is still 94.4 MB. Free memory was 44.2 MB in the beginning and 68.3 MB in the end (delta: -24.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:21:07,441 INFO L168 Benchmark]: Witness Printer took 4.85 ms. Allocated memory is still 94.4 MB. Free memory was 68.0 MB in the beginning and 67.7 MB in the end (delta: 278.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:21:07,447 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 73.4 MB. Free memory is still 52.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 251.93 ms. Allocated memory is still 94.4 MB. Free memory was 65.8 MB in the beginning and 56.6 MB in the end (delta: 9.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.44 ms. Allocated memory is still 94.4 MB. Free memory was 56.5 MB in the beginning and 55.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.87 ms. Allocated memory is still 94.4 MB. Free memory was 55.1 MB in the beginning and 54.2 MB in the end (delta: 902.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 429.54 ms. Allocated memory is still 94.4 MB. Free memory was 54.2 MB in the beginning and 44.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 465.55 ms. Allocated memory is still 94.4 MB. Free memory was 44.2 MB in the beginning and 68.3 MB in the end (delta: -24.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.85 ms. Allocated memory is still 94.4 MB. Free memory was 68.0 MB in the beginning and 67.7 MB in the end (delta: 278.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 8]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15. Possible FailurePath: [L12] float x; [L13] x = __VERIFIER_nondet_float() [L8] COND TRUE !(cond) [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 372.4ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 11.7ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 11.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 6.1ms SsaConstructionTime, 69.1ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-20 05:21:07,504 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-e943c26 [2021-10-20 05:21:10,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-20 05:21:10,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-20 05:21:10,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-20 05:21:10,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-20 05:21:10,261 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-20 05:21:10,264 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-20 05:21:10,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-20 05:21:10,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-20 05:21:10,279 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-20 05:21:10,281 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-20 05:21:10,283 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-20 05:21:10,283 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-20 05:21:10,286 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-20 05:21:10,288 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-20 05:21:10,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-20 05:21:10,294 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-20 05:21:10,295 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-20 05:21:10,297 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-20 05:21:10,322 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-20 05:21:10,324 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-20 05:21:10,326 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-20 05:21:10,329 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-20 05:21:10,332 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-20 05:21:10,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-20 05:21:10,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-20 05:21:10,344 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-20 05:21:10,347 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-20 05:21:10,347 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-20 05:21:10,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-20 05:21:10,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-20 05:21:10,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-20 05:21:10,353 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-20 05:21:10,354 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-20 05:21:10,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-20 05:21:10,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-20 05:21:10,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-20 05:21:10,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-20 05:21:10,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-20 05:21:10,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-20 05:21:10,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-20 05:21:10,362 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-20 05:21:10,414 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-20 05:21:10,415 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-20 05:21:10,416 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-20 05:21:10,417 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-20 05:21:10,417 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-20 05:21:10,417 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-20 05:21:10,418 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-20 05:21:10,418 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-20 05:21:10,418 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-20 05:21:10,420 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-20 05:21:10,421 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-20 05:21:10,422 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-20 05:21:10,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-20 05:21:10,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-20 05:21:10,422 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-20 05:21:10,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-20 05:21:10,423 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-20 05:21:10,423 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-20 05:21:10,423 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-20 05:21:10,424 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-20 05:21:10,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-20 05:21:10,424 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-20 05:21:10,424 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-20 05:21:10,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-20 05:21:10,425 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-20 05:21:10,425 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-20 05:21:10,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:21:10,426 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-20 05:21:10,426 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-20 05:21:10,426 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-20 05:21:10,426 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-20 05:21:10,427 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-20 05:21:10,427 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-20 05:21:10,427 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-20 05:21:10,428 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-20 05:21:10,428 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_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb81f35d75989f789f001a9f8dd91513a75388b6b9d4a313a70014eff54b698e [2021-10-20 05:21:10,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-20 05:21:10,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-20 05:21:10,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-20 05:21:10,884 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-20 05:21:10,885 INFO L275 PluginConnector]: CDTParser initialized [2021-10-20 05:21:10,888 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/../../sv-benchmarks/c/float-benchs/nan_float.c [2021-10-20 05:21:10,982 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/data/17d446d09/b47472d75d5b4a928fca68818f57ce23/FLAG10999fac3 [2021-10-20 05:21:11,612 INFO L306 CDTParser]: Found 1 translation units. [2021-10-20 05:21:11,613 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/sv-benchmarks/c/float-benchs/nan_float.c [2021-10-20 05:21:11,620 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/data/17d446d09/b47472d75d5b4a928fca68818f57ce23/FLAG10999fac3 [2021-10-20 05:21:11,976 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/data/17d446d09/b47472d75d5b4a928fca68818f57ce23 [2021-10-20 05:21:11,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-20 05:21:11,984 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-20 05:21:11,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-20 05:21:11,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-20 05:21:11,992 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-20 05:21:11,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:21:11" (1/1) ... [2021-10-20 05:21:11,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@191677d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:21:11, skipping insertion in model container [2021-10-20 05:21:11,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 05:21:11" (1/1) ... [2021-10-20 05:21:12,008 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-20 05:21:12,021 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-20 05:21:12,209 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2021-10-20 05:21:12,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:21:12,252 INFO L203 MainTranslator]: Completed pre-run [2021-10-20 05:21:12,265 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/sv-benchmarks/c/float-benchs/nan_float.c[434,447] [2021-10-20 05:21:12,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-20 05:21:12,288 INFO L208 MainTranslator]: Completed translation [2021-10-20 05:21:12,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:21:12 WrapperNode [2021-10-20 05:21:12,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-20 05:21:12,290 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-20 05:21:12,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-20 05:21:12,291 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-20 05:21:12,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:21:12" (1/1) ... [2021-10-20 05:21:12,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:21:12" (1/1) ... [2021-10-20 05:21:12,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-20 05:21:12,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-20 05:21:12,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-20 05:21:12,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-20 05:21:12,337 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:21:12" (1/1) ... [2021-10-20 05:21:12,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:21:12" (1/1) ... [2021-10-20 05:21:12,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:21:12" (1/1) ... [2021-10-20 05:21:12,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:21:12" (1/1) ... [2021-10-20 05:21:12,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:21:12" (1/1) ... [2021-10-20 05:21:12,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:21:12" (1/1) ... [2021-10-20 05:21:12,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:21:12" (1/1) ... [2021-10-20 05:21:12,354 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-20 05:21:12,355 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-20 05:21:12,355 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-20 05:21:12,355 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-20 05:21:12,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:21:12" (1/1) ... [2021-10-20 05:21:12,364 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-20 05:21:12,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/z3 [2021-10-20 05:21:12,390 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-20 05:21:12,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-20 05:21:12,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-20 05:21:12,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-20 05:21:12,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-20 05:21:12,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-20 05:21:12,700 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-20 05:21:12,701 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-20 05:21:12,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:21:12 BoogieIcfgContainer [2021-10-20 05:21:12,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-20 05:21:12,705 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-20 05:21:12,705 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-20 05:21:12,708 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-20 05:21:12,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 05:21:11" (1/3) ... [2021-10-20 05:21:12,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2cf909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:21:12, skipping insertion in model container [2021-10-20 05:21:12,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 05:21:12" (2/3) ... [2021-10-20 05:21:12,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f2cf909 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 05:21:12, skipping insertion in model container [2021-10-20 05:21:12,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:21:12" (3/3) ... [2021-10-20 05:21:12,711 INFO L111 eAbstractionObserver]: Analyzing ICFG nan_float.c [2021-10-20 05:21:12,738 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-20 05:21:12,739 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-20 05:21:12,808 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-20 05:21:12,822 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 [2021-10-20 05:21:12,823 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-20 05:21:12,839 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) [2021-10-20 05:21:12,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-20 05:21:12,844 INFO L504 BasicCegarLoop]: Found error trace [2021-10-20 05:21:12,845 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-20 05:21:12,845 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-20 05:21:12,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-20 05:21:12,854 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-10-20 05:21:12,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-20 05:21:12,871 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1034975526] [2021-10-20 05:21:12,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-20 05:21:12,873 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-20 05:21:12,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/mathsat [2021-10-20 05:21:12,880 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-20 05:21:12,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-20 05:21:12,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 05:21:12,991 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-20 05:21:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-20 05:21:13,062 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-10-20 05:21:13,078 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-20 05:21:13,079 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-20 05:21:13,102 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-20 05:21:13,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/mathsat -unsat_core_generation=3 [2021-10-20 05:21:13,304 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-20 05:21:13,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 05:21:13 BoogieIcfgContainer [2021-10-20 05:21:13,329 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-20 05:21:13,333 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-20 05:21:13,333 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-20 05:21:13,334 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-20 05:21:13,334 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 05:21:12" (3/4) ... [2021-10-20 05:21:13,336 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-20 05:21:13,383 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/witness.graphml [2021-10-20 05:21:13,383 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-20 05:21:13,389 INFO L168 Benchmark]: Toolchain (without parser) took 1401.45 ms. Allocated memory is still 58.7 MB. Free memory was 39.1 MB in the beginning and 25.2 MB in the end (delta: 13.9 MB). Peak memory consumption was 14.5 MB. Max. memory is 16.1 GB. [2021-10-20 05:21:13,394 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 58.7 MB. Free memory is still 40.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:21:13,395 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.69 ms. Allocated memory is still 58.7 MB. Free memory was 38.9 MB in the beginning and 29.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-20 05:21:13,397 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.82 ms. Allocated memory is still 58.7 MB. Free memory was 29.4 MB in the beginning and 27.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:21:13,398 INFO L168 Benchmark]: Boogie Preprocessor took 26.18 ms. Allocated memory is still 58.7 MB. Free memory was 27.8 MB in the beginning and 26.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-20 05:21:13,399 INFO L168 Benchmark]: RCFGBuilder took 347.68 ms. Allocated memory is still 58.7 MB. Free memory was 26.8 MB in the beginning and 38.5 MB in the end (delta: -11.7 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2021-10-20 05:21:13,399 INFO L168 Benchmark]: TraceAbstraction took 624.39 ms. Allocated memory is still 58.7 MB. Free memory was 38.0 MB in the beginning and 26.9 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-20 05:21:13,404 INFO L168 Benchmark]: Witness Printer took 51.37 ms. Allocated memory is still 58.7 MB. Free memory was 26.9 MB in the beginning and 25.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-20 05:21:13,412 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 58.7 MB. Free memory is still 40.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 301.69 ms. Allocated memory is still 58.7 MB. Free memory was 38.9 MB in the beginning and 29.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 36.82 ms. Allocated memory is still 58.7 MB. Free memory was 29.4 MB in the beginning and 27.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.18 ms. Allocated memory is still 58.7 MB. Free memory was 27.8 MB in the beginning and 26.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 347.68 ms. Allocated memory is still 58.7 MB. Free memory was 26.8 MB in the beginning and 38.5 MB in the end (delta: -11.7 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 624.39 ms. Allocated memory is still 58.7 MB. Free memory was 38.0 MB in the beginning and 26.9 MB in the end (delta: 11.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 51.37 ms. Allocated memory is still 58.7 MB. Free memory was 26.9 MB in the beginning and 25.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 8]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L12] float x; [L13] x = __VERIFIER_nondet_float() [L8] COND TRUE !(cond) [L8] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 495.7ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 9.9ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms 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, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.3ms SsaConstructionTime, 38.9ms SatisfiabilityAnalysisTime, 0.0ms 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! [2021-10-20 05:21:13,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168619ea-ce44-4b97-8f63-0f0f55a6466e/bin/utaipan-tZwUujhuQw/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...