./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC --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 5b13cd337396811bf9b23b015fd97985af6ec65a ...................................................................................................................................................................................................................................................................................................................... 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_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC --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 5b13cd337396811bf9b23b015fd97985af6ec65a ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:23:34,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:23:34,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:23:34,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:23:34,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:23:34,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:23:34,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:23:34,924 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:23:34,927 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:23:34,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:23:34,930 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:23:34,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:23:34,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:23:34,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:23:34,936 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:23:34,938 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:23:34,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:23:34,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:23:34,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:23:34,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:23:34,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:23:34,954 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:23:34,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:23:34,958 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:23:34,963 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:23:34,968 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:23:34,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:23:34,970 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:23:34,974 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:23:34,976 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:23:34,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:23:34,982 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:23:34,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:23:34,986 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:23:34,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:23:34,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:23:34,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:23:34,992 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:23:34,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:23:34,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:23:34,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:23:34,998 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:23:35,052 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:23:35,053 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:23:35,055 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:23:35,056 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:23:35,056 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:23:35,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:23:35,057 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:23:35,057 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:23:35,057 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:23:35,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:23:35,066 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:23:35,067 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:23:35,067 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:23:35,067 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:23:35,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:23:35,068 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:23:35,068 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:23:35,069 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:23:35,069 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:23:35,069 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:23:35,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:23:35,070 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:23:35,070 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:23:35,070 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:23:35,071 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:23:35,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:23:35,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:23:35,072 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:23:35,072 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_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b13cd337396811bf9b23b015fd97985af6ec65a [2021-10-11 00:23:35,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:23:35,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:23:35,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:23:35,557 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:23:35,560 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:23:35,562 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c [2021-10-11 00:23:35,661 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/data/c1d421a56/f4d7a6f43b4a4b0cb4e990ffde962316/FLAG0f5f32ec6 [2021-10-11 00:23:36,365 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:23:36,371 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/sv-benchmarks/c/float-newlib/float_req_bl_0620a.c [2021-10-11 00:23:36,388 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/data/c1d421a56/f4d7a6f43b4a4b0cb4e990ffde962316/FLAG0f5f32ec6 [2021-10-11 00:23:36,691 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/data/c1d421a56/f4d7a6f43b4a4b0cb4e990ffde962316 [2021-10-11 00:23:36,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:23:36,697 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:23:36,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:23:36,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:23:36,704 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:23:36,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:23:36" (1/1) ... [2021-10-11 00:23:36,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@582aa2e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:36, skipping insertion in model container [2021-10-11 00:23:36,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:23:36" (1/1) ... [2021-10-11 00:23:36,718 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:23:36,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:23:37,015 WARN L226 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_8551f78e-3b04-4a08-b4b0-f342701d9b37/sv-benchmarks/c/float-newlib/float_req_bl_0620a.c[3328,3341] [2021-10-11 00:23:37,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:23:37,038 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:23:37,100 WARN L226 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_8551f78e-3b04-4a08-b4b0-f342701d9b37/sv-benchmarks/c/float-newlib/float_req_bl_0620a.c[3328,3341] [2021-10-11 00:23:37,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:23:37,127 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:23:37,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:37 WrapperNode [2021-10-11 00:23:37,128 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:23:37,129 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:23:37,130 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:23:37,130 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:23:37,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:37" (1/1) ... [2021-10-11 00:23:37,164 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:37" (1/1) ... [2021-10-11 00:23:37,221 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:23:37,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:23:37,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:23:37,222 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:23:37,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:37" (1/1) ... [2021-10-11 00:23:37,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:37" (1/1) ... [2021-10-11 00:23:37,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:37" (1/1) ... [2021-10-11 00:23:37,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:37" (1/1) ... [2021-10-11 00:23:37,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:37" (1/1) ... [2021-10-11 00:23:37,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:37" (1/1) ... [2021-10-11 00:23:37,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:37" (1/1) ... [2021-10-11 00:23:37,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:23:37,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:23:37,303 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:23:37,303 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:23:37,304 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:37" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:23:37,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:23:37,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:23:37,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-11 00:23:37,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 00:23:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-11 00:23:37,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:23:37,401 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:23:37,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 00:23:37,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-11 00:23:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:23:37,945 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:23:37,945 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-11 00:23:37,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:37 BoogieIcfgContainer [2021-10-11 00:23:37,947 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:23:37,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:23:37,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:23:37,957 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:23:37,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:23:36" (1/3) ... [2021-10-11 00:23:37,959 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5de0e788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:23:37, skipping insertion in model container [2021-10-11 00:23:37,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:37" (2/3) ... [2021-10-11 00:23:37,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5de0e788 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:23:37, skipping insertion in model container [2021-10-11 00:23:37,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:37" (3/3) ... [2021-10-11 00:23:37,963 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620a.c [2021-10-11 00:23:37,980 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:23:37,984 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:23:37,997 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 00:23:38,042 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:23:38,044 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:23:38,044 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:23:38,045 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:23:38,045 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:23:38,045 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:23:38,045 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:23:38,046 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:23:38,067 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2021-10-11 00:23:38,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 00:23:38,074 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:38,075 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:38,076 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:23:38,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:38,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1030429181, now seen corresponding path program 1 times [2021-10-11 00:23:38,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:38,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874410928] [2021-10-11 00:23:38,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:38,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:23:38,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:23:38,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874410928] [2021-10-11 00:23:38,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:23:38,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:23:38,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562336849] [2021-10-11 00:23:38,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:23:38,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:23:38,410 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:23:38,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:23:38,414 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2021-10-11 00:23:38,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:23:38,446 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2021-10-11 00:23:38,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:23:38,449 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2021-10-11 00:23:38,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:23:38,470 INFO L225 Difference]: With dead ends: 72 [2021-10-11 00:23:38,480 INFO L226 Difference]: Without dead ends: 34 [2021-10-11 00:23:38,486 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:23:38,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-11 00:23:38,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-10-11 00:23:38,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2021-10-11 00:23:38,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2021-10-11 00:23:38,564 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 10 [2021-10-11 00:23:38,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:23:38,565 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2021-10-11 00:23:38,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:23:38,566 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2021-10-11 00:23:38,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 00:23:38,567 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:38,567 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:38,568 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:23:38,568 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:23:38,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:38,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1304878016, now seen corresponding path program 1 times [2021-10-11 00:23:38,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:23:38,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769811029] [2021-10-11 00:23:38,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:23:38,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:38,663 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:38,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:23:38,723 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:23:38,779 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:23:38,780 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:23:38,781 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:23:38,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:23:38 BoogieIcfgContainer [2021-10-11 00:23:38,861 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:23:38,862 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:23:38,863 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:23:38,863 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:23:38,864 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:37" (3/4) ... [2021-10-11 00:23:38,867 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:23:38,868 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:23:38,871 INFO L168 Benchmark]: Toolchain (without parser) took 2172.13 ms. Allocated memory is still 104.9 MB. Free memory was 70.0 MB in the beginning and 66.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:38,872 INFO L168 Benchmark]: CDTParser took 0.75 ms. Allocated memory is still 104.9 MB. Free memory was 78.8 MB in the beginning and 78.7 MB in the end (delta: 30.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:23:38,874 INFO L168 Benchmark]: CACSL2BoogieTranslator took 429.44 ms. Allocated memory is still 104.9 MB. Free memory was 69.8 MB in the beginning and 77.3 MB in the end (delta: -7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:38,875 INFO L168 Benchmark]: Boogie Procedure Inliner took 91.66 ms. Allocated memory is still 104.9 MB. Free memory was 77.3 MB in the beginning and 75.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:38,877 INFO L168 Benchmark]: Boogie Preprocessor took 79.62 ms. Allocated memory is still 104.9 MB. Free memory was 75.2 MB in the beginning and 73.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:23:38,879 INFO L168 Benchmark]: RCFGBuilder took 644.91 ms. Allocated memory is still 104.9 MB. Free memory was 73.1 MB in the beginning and 49.5 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:23:38,880 INFO L168 Benchmark]: TraceAbstraction took 912.22 ms. Allocated memory is still 104.9 MB. Free memory was 49.0 MB in the beginning and 67.5 MB in the end (delta: -18.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:23:38,881 INFO L168 Benchmark]: Witness Printer took 5.54 ms. Allocated memory is still 104.9 MB. Free memory is still 66.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:23:38,895 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75 ms. Allocated memory is still 104.9 MB. Free memory was 78.8 MB in the beginning and 78.7 MB in the end (delta: 30.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 429.44 ms. Allocated memory is still 104.9 MB. Free memory was 69.8 MB in the beginning and 77.3 MB in the end (delta: -7.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 91.66 ms. Allocated memory is still 104.9 MB. Free memory was 77.3 MB in the beginning and 75.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 79.62 ms. Allocated memory is still 104.9 MB. Free memory was 75.2 MB in the beginning and 73.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 644.91 ms. Allocated memory is still 104.9 MB. Free memory was 73.1 MB in the beginning and 49.5 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 912.22 ms. Allocated memory is still 104.9 MB. Free memory was 49.0 MB in the beginning and 67.5 MB in the end (delta: -18.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.54 ms. Allocated memory is still 104.9 MB. Free memory is still 66.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 144]: 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 143, overapproximation of someUnaryDOUBLEoperation at line 46, overapproximation of bitwiseAnd at line 64, overapproximation of someBinaryArithmeticFLOAToperation at line 67. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L31-L36] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L38-L43] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L45-L49] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L51-L53] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L139] float x = 0.0f; [L56] float w, s1, s2, z; [L57] __int32_t ix, hx, id; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L60] ieee_float_shape_type gf_u; [L61] gf_u.value = (x) [L62] EXPR gf_u.word [L62] (hx) = gf_u.word [L64] ix = hx & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L65] COND TRUE ix >= 0x50800000 VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L66] COND TRUE ((ix) > 0x7f800000L) [L67] return x + x; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L140] float res = atan_float(x); [L143] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L143] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L144] reach_error() VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:23:41,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:23:41,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:23:41,911 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:23:41,912 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:23:41,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:23:41,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:23:41,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:23:41,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:23:41,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:23:41,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:23:41,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:23:41,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:23:41,953 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:23:41,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:23:41,959 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:23:41,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:23:41,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:23:41,969 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:23:41,978 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:23:41,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:23:41,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:23:41,986 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:23:41,990 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:23:42,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:23:42,000 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:23:42,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:23:42,004 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:23:42,005 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:23:42,006 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:23:42,007 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:23:42,008 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:23:42,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:23:42,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:23:42,014 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:23:42,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:23:42,016 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:23:42,016 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:23:42,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:23:42,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:23:42,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:23:42,021 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-11 00:23:42,075 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:23:42,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:23:42,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:23:42,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:23:42,096 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:23:42,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:23:42,097 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:23:42,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:23:42,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:23:42,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:23:42,099 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:23:42,099 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:23:42,100 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 00:23:42,100 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 00:23:42,100 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:23:42,101 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:23:42,101 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:23:42,101 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:23:42,102 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:23:42,102 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:23:42,102 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:23:42,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:23:42,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:23:42,103 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:23:42,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:23:42,104 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-11 00:23:42,104 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 00:23:42,105 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:23:42,105 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:23:42,106 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 00:23:42,106 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_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b13cd337396811bf9b23b015fd97985af6ec65a [2021-10-11 00:23:42,590 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:23:42,628 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:23:42,632 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:23:42,633 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:23:42,636 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:23:42,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c [2021-10-11 00:23:42,734 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/data/51f1d15e6/16731095b80444cdbb9e7c01546c3581/FLAGcacb599d2 [2021-10-11 00:23:43,420 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:23:43,428 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/sv-benchmarks/c/float-newlib/float_req_bl_0620a.c [2021-10-11 00:23:43,440 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/data/51f1d15e6/16731095b80444cdbb9e7c01546c3581/FLAGcacb599d2 [2021-10-11 00:23:43,769 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/data/51f1d15e6/16731095b80444cdbb9e7c01546c3581 [2021-10-11 00:23:43,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:23:43,776 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:23:43,780 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:23:43,781 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:23:43,785 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:23:43,787 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:23:43" (1/1) ... [2021-10-11 00:23:43,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@678428e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:43, skipping insertion in model container [2021-10-11 00:23:43,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:23:43" (1/1) ... [2021-10-11 00:23:43,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:23:43,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:23:44,201 WARN L226 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_8551f78e-3b04-4a08-b4b0-f342701d9b37/sv-benchmarks/c/float-newlib/float_req_bl_0620a.c[3328,3341] [2021-10-11 00:23:44,210 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:23:44,239 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:23:44,377 WARN L226 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_8551f78e-3b04-4a08-b4b0-f342701d9b37/sv-benchmarks/c/float-newlib/float_req_bl_0620a.c[3328,3341] [2021-10-11 00:23:44,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:23:44,412 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:23:44,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44 WrapperNode [2021-10-11 00:23:44,416 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:23:44,420 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:23:44,421 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:23:44,421 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:23:44,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ... [2021-10-11 00:23:44,467 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ... [2021-10-11 00:23:44,533 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:23:44,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:23:44,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:23:44,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:23:44,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ... [2021-10-11 00:23:44,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ... [2021-10-11 00:23:44,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ... [2021-10-11 00:23:44,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ... [2021-10-11 00:23:44,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ... [2021-10-11 00:23:44,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ... [2021-10-11 00:23:44,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ... [2021-10-11 00:23:44,626 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:23:44,627 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:23:44,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:23:44,628 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:23:44,631 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:23:44,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-10-11 00:23:44,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 00:23:44,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:23:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-11 00:23:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-11 00:23:44,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:23:44,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:23:44,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-11 00:23:44,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-11 00:23:44,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:23:59,663 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:23:59,664 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-11 00:23:59,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:59 BoogieIcfgContainer [2021-10-11 00:23:59,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:23:59,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:23:59,668 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:23:59,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:23:59,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:23:43" (1/3) ... [2021-10-11 00:23:59,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ede3fcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:23:59, skipping insertion in model container [2021-10-11 00:23:59,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:23:44" (2/3) ... [2021-10-11 00:23:59,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ede3fcd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:23:59, skipping insertion in model container [2021-10-11 00:23:59,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:59" (3/3) ... [2021-10-11 00:23:59,675 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620a.c [2021-10-11 00:23:59,691 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:23:59,694 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:23:59,726 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 00:23:59,750 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:23:59,750 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:23:59,750 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:23:59,750 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:23:59,750 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:23:59,751 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:23:59,751 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:23:59,751 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:23:59,763 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2021-10-11 00:23:59,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 00:23:59,768 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:23:59,769 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:23:59,770 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:23:59,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:23:59,775 INFO L82 PathProgramCache]: Analyzing trace with hash 1030429181, now seen corresponding path program 1 times [2021-10-11 00:23:59,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:23:59,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2113337587] [2021-10-11 00:23:59,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 00:24:00,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:24:00,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 00:24:00,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:24:00,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:24:00,752 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:24:00,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2113337587] [2021-10-11 00:24:00,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:24:00,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:24:00,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833760368] [2021-10-11 00:24:00,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:24:00,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:24:00,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:24:00,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:24:00,783 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2021-10-11 00:24:00,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:24:00,801 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2021-10-11 00:24:00,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:24:00,802 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2021-10-11 00:24:00,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:24:00,811 INFO L225 Difference]: With dead ends: 72 [2021-10-11 00:24:00,812 INFO L226 Difference]: Without dead ends: 34 [2021-10-11 00:24:00,821 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:24:00,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-11 00:24:00,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-10-11 00:24:00,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2021-10-11 00:24:00,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2021-10-11 00:24:00,854 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 10 [2021-10-11 00:24:00,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:24:00,855 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2021-10-11 00:24:00,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:24:00,855 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2021-10-11 00:24:00,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 00:24:00,856 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:24:00,856 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:24:01,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 00:24:01,065 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:24:01,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:24:01,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1304878016, now seen corresponding path program 1 times [2021-10-11 00:24:01,067 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:24:01,067 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1728973788] [2021-10-11 00:24:01,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 00:24:01,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:24:02,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-11 00:24:02,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:24:02,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:24:02,304 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:24:02,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1728973788] [2021-10-11 00:24:02,304 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:24:02,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:24:02,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720377914] [2021-10-11 00:24:02,306 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:24:02,307 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:24:02,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:24:02,308 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:24:02,308 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand 5 states. [2021-10-11 00:24:08,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:24:08,893 INFO L93 Difference]: Finished difference Result 57 states and 70 transitions. [2021-10-11 00:24:08,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:24:08,894 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2021-10-11 00:24:08,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:24:08,895 INFO L225 Difference]: With dead ends: 57 [2021-10-11 00:24:08,896 INFO L226 Difference]: Without dead ends: 32 [2021-10-11 00:24:08,897 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:24:08,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-11 00:24:08,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2021-10-11 00:24:08,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-10-11 00:24:08,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2021-10-11 00:24:08,902 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 11 [2021-10-11 00:24:08,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:24:08,903 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2021-10-11 00:24:08,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:24:08,903 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2021-10-11 00:24:08,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-11 00:24:08,904 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:24:08,905 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:24:09,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 00:24:09,116 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:24:09,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:24:09,118 INFO L82 PathProgramCache]: Analyzing trace with hash -413875709, now seen corresponding path program 1 times [2021-10-11 00:24:09,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:24:09,119 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1702837850] [2021-10-11 00:24:09,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2021-10-11 00:24:10,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:24:10,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 00:24:10,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:24:10,351 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 1 [2021-10-11 00:24:10,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:24:10,357 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:24:10,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1702837850] [2021-10-11 00:24:10,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:24:10,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:24:10,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333644809] [2021-10-11 00:24:10,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:24:10,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:24:10,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:24:10,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:24:10,360 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 5 states. [2021-10-11 00:24:19,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:24:19,469 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2021-10-11 00:24:19,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:24:19,470 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2021-10-11 00:24:19,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:24:19,471 INFO L225 Difference]: With dead ends: 35 [2021-10-11 00:24:19,471 INFO L226 Difference]: Without dead ends: 32 [2021-10-11 00:24:19,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:24:19,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-11 00:24:19,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2021-10-11 00:24:19,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2021-10-11 00:24:19,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2021-10-11 00:24:19,475 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 13 [2021-10-11 00:24:19,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:24:19,476 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2021-10-11 00:24:19,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:24:19,476 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2021-10-11 00:24:19,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-11 00:24:19,477 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:24:19,477 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:24:19,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 00:24:19,678 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:24:19,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:24:19,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1848532469, now seen corresponding path program 1 times [2021-10-11 00:24:19,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:24:19,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1648123630] [2021-10-11 00:24:19,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2021-10-11 00:24:21,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:24:21,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-11 00:24:21,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:24:22,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:24:22,004 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:24:22,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1648123630] [2021-10-11 00:24:22,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:24:22,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:24:22,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482096974] [2021-10-11 00:24:22,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:24:22,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:24:22,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:24:22,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:24:22,008 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 4 states. [2021-10-11 00:24:22,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:24:22,071 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2021-10-11 00:24:22,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:24:22,075 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2021-10-11 00:24:22,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:24:22,076 INFO L225 Difference]: With dead ends: 32 [2021-10-11 00:24:22,076 INFO L226 Difference]: Without dead ends: 18 [2021-10-11 00:24:22,077 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:24:22,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-11 00:24:22,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-11 00:24:22,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-10-11 00:24:22,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2021-10-11 00:24:22,080 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2021-10-11 00:24:22,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:24:22,081 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2021-10-11 00:24:22,081 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:24:22,081 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2021-10-11 00:24:22,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-11 00:24:22,082 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:24:22,082 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:24:22,287 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2021-10-11 00:24:22,287 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:24:22,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:24:22,288 INFO L82 PathProgramCache]: Analyzing trace with hash 712330328, now seen corresponding path program 1 times [2021-10-11 00:24:22,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:24:22,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [552707700] [2021-10-11 00:24:22,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2021-10-11 00:24:23,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:24:23,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-11 00:24:23,357 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:24:23,679 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 00:24:23,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:24:23,889 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:24:23,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [552707700] [2021-10-11 00:24:23,890 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:24:23,890 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-10-11 00:24:23,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317444383] [2021-10-11 00:24:23,891 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-10-11 00:24:23,891 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:24:23,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-11 00:24:23,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:24:23,892 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 9 states. [2021-10-11 00:24:24,523 WARN L197 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2021-10-11 00:24:24,697 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2021-10-11 00:24:24,862 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2021-10-11 00:24:24,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:24:24,874 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2021-10-11 00:24:24,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-11 00:24:24,875 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2021-10-11 00:24:24,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:24:24,876 INFO L225 Difference]: With dead ends: 18 [2021-10-11 00:24:24,876 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:24:24,877 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2021-10-11 00:24:24,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:24:24,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:24:24,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:24:24,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:24:24,878 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2021-10-11 00:24:24,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:24:24,879 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:24:24,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-10-11 00:24:24,879 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:24:24,879 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:24:25,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2021-10-11 00:24:25,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:24:25,389 WARN L197 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-10-11 00:24:25,507 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2021-10-11 00:24:25,704 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2021-10-11 00:24:25,811 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2021-10-11 00:24:25,815 INFO L262 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-11 00:24:25,816 INFO L262 CegarLoopResult]: For program point L143-2(lines 143 146) no Hoare annotation was computed. [2021-10-11 00:24:25,816 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:24:25,816 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:24:25,816 INFO L258 CegarLoopResult]: At program point L28(lines 16 29) the Hoare annotation is: false [2021-10-11 00:24:25,816 INFO L262 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2021-10-11 00:24:25,816 INFO L262 CegarLoopResult]: For program point L111(lines 111 116) no Hoare annotation was computed. [2021-10-11 00:24:25,817 INFO L258 CegarLoopResult]: At program point L128(lines 119 129) the Hoare annotation is: (and (= (_ +zero 8 24) |ULTIMATE.start_atan_float_#res|) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= ULTIMATE.start_atan_float_~x (_ +zero 8 24)) (= currentRoundingMode roundNearestTiesToEven) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ~huge_atan~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1))) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) |ULTIMATE.start_main_#t~short32| (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32))) [2021-10-11 00:24:25,817 INFO L262 CegarLoopResult]: For program point L122-1(lines 122 126) no Hoare annotation was computed. [2021-10-11 00:24:25,817 INFO L258 CegarLoopResult]: At program point L122-2(lines 122 126) the Hoare annotation is: (and (= (_ +zero 8 24) |ULTIMATE.start_atan_float_#res|) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= ULTIMATE.start_atan_float_~x (_ +zero 8 24)) (= currentRoundingMode roundNearestTiesToEven) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ~huge_atan~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) |ULTIMATE.start_main_#t~short32|) [2021-10-11 00:24:25,817 INFO L262 CegarLoopResult]: For program point L23(lines 23 27) no Hoare annotation was computed. [2021-10-11 00:24:25,817 INFO L262 CegarLoopResult]: For program point L122-3(lines 122 126) no Hoare annotation was computed. [2021-10-11 00:24:25,817 INFO L262 CegarLoopResult]: For program point L23-1(lines 16 29) no Hoare annotation was computed. [2021-10-11 00:24:25,817 INFO L262 CegarLoopResult]: For program point L23-2(lines 23 27) no Hoare annotation was computed. [2021-10-11 00:24:25,818 INFO L262 CegarLoopResult]: For program point L81(lines 81 97) no Hoare annotation was computed. [2021-10-11 00:24:25,818 INFO L262 CegarLoopResult]: For program point L73(lines 73 98) no Hoare annotation was computed. [2021-10-11 00:24:25,818 INFO L262 CegarLoopResult]: For program point L65(lines 65 72) no Hoare annotation was computed. [2021-10-11 00:24:25,818 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 00:24:25,818 INFO L262 CegarLoopResult]: For program point L90(lines 90 96) no Hoare annotation was computed. [2021-10-11 00:24:25,818 INFO L262 CegarLoopResult]: For program point L90-2(lines 73 98) no Hoare annotation was computed. [2021-10-11 00:24:25,818 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 144) no Hoare annotation was computed. [2021-10-11 00:24:25,818 INFO L265 CegarLoopResult]: At program point L148(lines 131 149) the Hoare annotation is: true [2021-10-11 00:24:25,819 INFO L262 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2021-10-11 00:24:25,819 INFO L262 CegarLoopResult]: For program point L82(lines 82 88) no Hoare annotation was computed. [2021-10-11 00:24:25,819 INFO L262 CegarLoopResult]: For program point L115-2(line 115) no Hoare annotation was computed. [2021-10-11 00:24:25,819 INFO L258 CegarLoopResult]: At program point L115-3(lines 55 117) the Hoare annotation is: (and (= (_ +zero 8 24) |ULTIMATE.start_atan_float_#res|) (= ULTIMATE.start_atan_float_~x (_ +zero 8 24)) (= currentRoundingMode roundNearestTiesToEven) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ~huge_atan~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)))) [2021-10-11 00:24:25,819 INFO L262 CegarLoopResult]: For program point L74(lines 74 77) no Hoare annotation was computed. [2021-10-11 00:24:25,819 INFO L262 CegarLoopResult]: For program point L74-2(lines 74 77) no Hoare annotation was computed. [2021-10-11 00:24:25,819 INFO L262 CegarLoopResult]: For program point L66(lines 66 67) no Hoare annotation was computed. [2021-10-11 00:24:25,819 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:24:25,819 INFO L262 CegarLoopResult]: For program point L75(lines 75 76) no Hoare annotation was computed. [2021-10-11 00:24:25,820 INFO L262 CegarLoopResult]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2021-10-11 00:24:25,820 INFO L258 CegarLoopResult]: At program point L59-2(lines 59 63) the Hoare annotation is: (and (= ULTIMATE.start_atan_float_~x (_ +zero 8 24)) (= currentRoundingMode roundNearestTiesToEven) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ~huge_atan~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)))) [2021-10-11 00:24:25,826 INFO L262 CegarLoopResult]: For program point L59-3(lines 59 63) no Hoare annotation was computed. [2021-10-11 00:24:25,826 INFO L262 CegarLoopResult]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2021-10-11 00:24:25,826 INFO L258 CegarLoopResult]: At program point L18-2(lines 18 22) the Hoare annotation is: false [2021-10-11 00:24:25,826 INFO L262 CegarLoopResult]: For program point L68(lines 68 71) no Hoare annotation was computed. [2021-10-11 00:24:25,838 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:24:25,845 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:24:25,848 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:24:25,849 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:24:25,852 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:24:25,854 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:24:25,855 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:24:25,868 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:24:25,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:24:25 BoogieIcfgContainer [2021-10-11 00:24:25,871 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:24:25,872 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:24:25,872 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:24:25,873 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:24:25,873 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:23:59" (3/4) ... [2021-10-11 00:24:25,876 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:24:25,893 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-10-11 00:24:25,894 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-11 00:24:25,894 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:24:25,895 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:24:25,927 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~Pluszero~LONGDOUBLE() == \result && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) [2021-10-11 00:24:25,929 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0f && __signbit_float(res) == 0-aux [2021-10-11 00:24:25,930 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && \result == 0bv32 [2021-10-11 00:24:25,991 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8551f78e-3b04-4a08-b4b0-f342701d9b37/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:24:25,991 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:24:25,992 INFO L168 Benchmark]: Toolchain (without parser) took 42215.72 ms. Allocated memory was 50.3 MB in the beginning and 73.4 MB in the end (delta: 23.1 MB). Free memory was 27.5 MB in the beginning and 38.2 MB in the end (delta: -10.7 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:24:25,993 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 50.3 MB. Free memory was 32.2 MB in the beginning and 32.2 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:24:25,993 INFO L168 Benchmark]: CACSL2BoogieTranslator took 636.32 ms. Allocated memory was 50.3 MB in the beginning and 73.4 MB in the end (delta: 23.1 MB). Free memory was 27.3 MB in the beginning and 54.3 MB in the end (delta: -27.0 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:24:25,994 INFO L168 Benchmark]: Boogie Procedure Inliner took 113.36 ms. Allocated memory is still 73.4 MB. Free memory was 54.3 MB in the beginning and 51.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:24:25,994 INFO L168 Benchmark]: Boogie Preprocessor took 92.02 ms. Allocated memory is still 73.4 MB. Free memory was 51.9 MB in the beginning and 49.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:24:25,995 INFO L168 Benchmark]: RCFGBuilder took 15038.99 ms. Allocated memory is still 73.4 MB. Free memory was 49.7 MB in the beginning and 36.9 MB in the end (delta: 12.7 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:24:25,995 INFO L168 Benchmark]: TraceAbstraction took 26203.59 ms. Allocated memory is still 73.4 MB. Free memory was 36.5 MB in the beginning and 43.8 MB in the end (delta: -7.3 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:24:25,995 INFO L168 Benchmark]: Witness Printer took 119.15 ms. Allocated memory is still 73.4 MB. Free memory was 43.8 MB in the beginning and 38.2 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:24:25,998 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 50.3 MB. Free memory was 32.2 MB in the beginning and 32.2 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 636.32 ms. Allocated memory was 50.3 MB in the beginning and 73.4 MB in the end (delta: 23.1 MB). Free memory was 27.3 MB in the beginning and 54.3 MB in the end (delta: -27.0 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 113.36 ms. Allocated memory is still 73.4 MB. Free memory was 54.3 MB in the beginning and 51.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 92.02 ms. Allocated memory is still 73.4 MB. Free memory was 51.9 MB in the beginning and 49.7 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 15038.99 ms. Allocated memory is still 73.4 MB. Free memory was 49.7 MB in the beginning and 36.9 MB in the end (delta: 12.7 MB). Peak memory consumption was 17.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 26203.59 ms. Allocated memory is still 73.4 MB. Free memory was 36.5 MB in the beginning and 43.8 MB in the end (delta: -7.3 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. * Witness Printer took 119.15 ms. Allocated memory is still 73.4 MB. Free memory was 43.8 MB in the beginning and 38.2 MB in the end (delta: 5.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 144]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 55]: Loop Invariant [2021-10-11 00:24:26,008 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:24:26,009 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((~Pluszero~LONGDOUBLE() == \result && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 119]: Loop Invariant [2021-10-11 00:24:26,010 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:24:26,011 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((((((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && \result == 0bv32 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 122]: Loop Invariant [2021-10-11 00:24:26,013 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:24:26,020 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0f && __signbit_float(res) == 0-aux - InvariantResult [Line: 59]: Loop Invariant [2021-10-11 00:24:26,024 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 00:24:26,026 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((x == ~Pluszero~LONGDOUBLE() && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 25.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 16.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 123 SDslu, 128 SDs, 0 SdLazy, 62 SolverSat, 10 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 15.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 12 NumberOfFragments, 122 HoareAnnotationTreeSize, 7 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 5.3s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 62 ConstructedInterpolants, 1 QuantifiedInterpolants, 4291 SizeOfPredicates, 28 NumberOfNonLiveVariables, 513 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 correct! Received shutdown request...