./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer --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 966074c4bc45853152b23ed1081806a59c179b92 ............................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer --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 966074c4bc45853152b23ed1081806a59c179b92 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:40:50,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:40:50,805 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:40:50,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:40:50,890 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:40:50,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:40:50,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:40:50,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:40:50,900 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:40:50,902 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:40:50,903 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:40:50,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:40:50,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:40:50,908 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:40:50,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:40:50,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:40:50,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:40:50,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:40:50,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:40:50,931 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:40:50,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:40:50,942 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:40:50,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:40:50,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:40:50,958 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:40:50,963 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:40:50,964 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:40:50,965 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:40:50,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:40:50,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:40:50,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:40:50,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:40:50,981 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:40:50,983 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:40:50,985 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:40:50,989 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:40:50,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:40:50,991 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:40:50,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:40:50,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:40:50,995 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:40:50,996 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:40:51,055 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:40:51,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:40:51,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:40:51,062 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:40:51,062 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:40:51,063 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:40:51,063 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:40:51,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:40:51,063 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:40:51,064 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:40:51,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:40:51,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:40:51,066 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:40:51,066 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:40:51,067 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:40:51,067 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:40:51,067 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:40:51,067 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:40:51,068 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:40:51,068 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:40:51,068 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:40:51,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:40:51,069 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:40:51,069 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:40:51,070 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:40:51,070 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:40:51,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:40:51,071 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:40:51,071 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:40:51,071 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-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 966074c4bc45853152b23ed1081806a59c179b92 [2020-12-01 15:40:51,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:40:51,459 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:40:51,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:40:51,467 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:40:51,469 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:40:51,470 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c [2020-12-01 15:40:51,556 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/data/499f07f8c/afe6f8b87d9c4d25abe460e24d1ced08/FLAG973127c4f [2020-12-01 15:40:52,153 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:40:52,154 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/sv-benchmarks/c/float-newlib/double_req_bl_0620a.c [2020-12-01 15:40:52,170 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/data/499f07f8c/afe6f8b87d9c4d25abe460e24d1ced08/FLAG973127c4f [2020-12-01 15:40:52,469 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/data/499f07f8c/afe6f8b87d9c4d25abe460e24d1ced08 [2020-12-01 15:40:52,474 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:40:52,477 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:40:52,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:40:52,483 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:40:52,487 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:40:52,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:40:52" (1/1) ... [2020-12-01 15:40:52,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2731b74d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:52, skipping insertion in model container [2020-12-01 15:40:52,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:40:52" (1/1) ... [2020-12-01 15:40:52,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:40:52,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:40:52,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:40:52,850 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:40:52,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:40:52,982 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:40:52,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:52 WrapperNode [2020-12-01 15:40:52,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:40:52,986 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:40:52,986 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:40:52,987 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:40:52,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:52" (1/1) ... [2020-12-01 15:40:53,033 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:52" (1/1) ... [2020-12-01 15:40:53,086 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:40:53,087 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:40:53,087 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:40:53,087 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:40:53,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:52" (1/1) ... [2020-12-01 15:40:53,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:52" (1/1) ... [2020-12-01 15:40:53,103 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:52" (1/1) ... [2020-12-01 15:40:53,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:52" (1/1) ... [2020-12-01 15:40:53,118 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:52" (1/1) ... [2020-12-01 15:40:53,140 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:52" (1/1) ... [2020-12-01 15:40:53,143 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:52" (1/1) ... [2020-12-01 15:40:53,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:40:53,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:40:53,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:40:53,149 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:40:53,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/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 [2020-12-01 15:40:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:40:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:40:53,224 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-01 15:40:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 15:40:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-01 15:40:53,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:40:53,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:40:53,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 15:40:53,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-12-01 15:40:53,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:40:53,858 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:40:53,859 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-12-01 15:40:53,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:40:53 BoogieIcfgContainer [2020-12-01 15:40:53,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:40:53,864 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:40:53,864 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:40:53,869 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:40:53,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:40:52" (1/3) ... [2020-12-01 15:40:53,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@427d77ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:40:53, skipping insertion in model container [2020-12-01 15:40:53,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:52" (2/3) ... [2020-12-01 15:40:53,871 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@427d77ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:40:53, skipping insertion in model container [2020-12-01 15:40:53,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:40:53" (3/3) ... [2020-12-01 15:40:53,873 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620a.c [2020-12-01 15:40:53,892 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:40:53,896 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:40:53,912 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:40:53,943 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:40:53,944 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:40:53,944 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:40:53,944 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:40:53,944 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:40:53,945 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:40:53,945 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:40:53,945 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:40:53,962 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-12-01 15:40:53,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 15:40:53,970 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:40:53,971 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:40:53,971 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:40:53,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:40:53,979 INFO L82 PathProgramCache]: Analyzing trace with hash 2040843078, now seen corresponding path program 1 times [2020-12-01 15:40:53,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:40:53,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689697487] [2020-12-01 15:40:53,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:40:54,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:40:54,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:40:54,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689697487] [2020-12-01 15:40:54,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:40:54,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:40:54,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541788278] [2020-12-01 15:40:54,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:40:54,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:40:54,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:40:54,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:40:54,280 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2020-12-01 15:40:54,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:40:54,310 INFO L93 Difference]: Finished difference Result 77 states and 121 transitions. [2020-12-01 15:40:54,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:40:54,312 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-01 15:40:54,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:40:54,324 INFO L225 Difference]: With dead ends: 77 [2020-12-01 15:40:54,325 INFO L226 Difference]: Without dead ends: 36 [2020-12-01 15:40:54,328 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 [2020-12-01 15:40:54,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-12-01 15:40:54,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-12-01 15:40:54,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-12-01 15:40:54,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2020-12-01 15:40:54,376 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 47 transitions. Word has length 11 [2020-12-01 15:40:54,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:40:54,377 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 47 transitions. [2020-12-01 15:40:54,377 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:40:54,378 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2020-12-01 15:40:54,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 15:40:54,381 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:40:54,382 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:40:54,382 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:40:54,383 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:40:54,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:40:54,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1316832376, now seen corresponding path program 1 times [2020-12-01 15:40:54,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:40:54,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598793134] [2020-12-01 15:40:54,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:40:54,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:40:54,512 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:40:54,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:40:54,595 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:40:54,666 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:40:54,666 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 15:40:54,667 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:40:54,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:40:54 BoogieIcfgContainer [2020-12-01 15:40:54,741 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:40:54,742 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:40:54,743 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:40:54,743 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:40:54,744 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:40:53" (3/4) ... [2020-12-01 15:40:54,748 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:40:54,748 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:40:54,751 INFO L168 Benchmark]: Toolchain (without parser) took 2272.23 ms. Allocated memory was 94.4 MB in the beginning and 115.3 MB in the end (delta: 21.0 MB). Free memory was 67.0 MB in the beginning and 56.7 MB in the end (delta: 10.3 MB). Peak memory consumption was 30.8 MB. Max. memory is 16.1 GB. [2020-12-01 15:40:54,752 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 94.4 MB. Free memory was 51.6 MB in the beginning and 51.6 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:40:54,753 INFO L168 Benchmark]: CACSL2BoogieTranslator took 502.96 ms. Allocated memory is still 94.4 MB. Free memory was 66.8 MB in the beginning and 69.8 MB in the end (delta: -3.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:40:54,755 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.95 ms. Allocated memory is still 94.4 MB. Free memory was 69.4 MB in the beginning and 67.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:40:54,756 INFO L168 Benchmark]: Boogie Preprocessor took 61.32 ms. Allocated memory is still 94.4 MB. Free memory was 67.3 MB in the beginning and 65.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:40:54,757 INFO L168 Benchmark]: RCFGBuilder took 712.51 ms. Allocated memory was 94.4 MB in the beginning and 115.3 MB in the end (delta: 21.0 MB). Free memory was 65.1 MB in the beginning and 89.3 MB in the end (delta: -24.2 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:40:54,758 INFO L168 Benchmark]: TraceAbstraction took 877.75 ms. Allocated memory is still 115.3 MB. Free memory was 88.7 MB in the beginning and 57.3 MB in the end (delta: 31.4 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:40:54,759 INFO L168 Benchmark]: Witness Printer took 6.10 ms. Allocated memory is still 115.3 MB. Free memory was 57.3 MB in the beginning and 56.7 MB in the end (delta: 539.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:40:54,765 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 94.4 MB. Free memory was 51.6 MB in the beginning and 51.6 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 502.96 ms. Allocated memory is still 94.4 MB. Free memory was 66.8 MB in the beginning and 69.8 MB in the end (delta: -3.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 99.95 ms. Allocated memory is still 94.4 MB. Free memory was 69.4 MB in the beginning and 67.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.32 ms. Allocated memory is still 94.4 MB. Free memory was 67.3 MB in the beginning and 65.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 712.51 ms. Allocated memory was 94.4 MB in the beginning and 115.3 MB in the end (delta: 21.0 MB). Free memory was 65.1 MB in the beginning and 89.3 MB in the end (delta: -24.2 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 877.75 ms. Allocated memory is still 115.3 MB. Free memory was 88.7 MB in the beginning and 57.3 MB in the end (delta: 31.4 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * Witness Printer took 6.10 ms. Allocated memory is still 115.3 MB. Free memory was 57.3 MB in the beginning and 56.7 MB in the end (delta: 539.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 156, overapproximation of bitwiseAnd at line 75, overapproximation of someBinaryArithmeticDOUBLEoperation at line 84, overapproximation of someBinaryDOUBLEComparisonOperation at line 160. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L156] double x = -0.0; [L67] double w, s1, s2, z; [L68] __int32_t ix, hx, id; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L71] ieee_double_shape_type gh_u; [L72] gh_u.value = (x) [L73] EXPR gh_u.parts.msw [L73] (hx) = gh_u.parts.msw [L75] ix = hx & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L76] COND TRUE ix >= 0x44100000 [L77] __uint32_t low; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L79] ieee_double_shape_type gl_u; [L80] gl_u.value = (x) [L81] EXPR gl_u.parts.lsw [L81] (low) = gl_u.parts.lsw [L83] COND TRUE ix > 0x7ff00000 || (ix == 0x7ff00000 && (low != 0)) [L84] return x + x; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L157] double res = atan_double(x); [L160] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L160] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L3] __assert_fail("0", "double_req_bl_0620a.c", 3, "reach_error") VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 40 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: 50 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=40occurred 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, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 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 0.2.0-69874e2 [2020-12-01 15:40:57,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:40:57,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:40:58,045 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:40:58,046 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:40:58,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:40:58,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:40:58,062 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:40:58,067 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:40:58,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:40:58,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:40:58,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:40:58,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:40:58,091 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:40:58,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:40:58,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:40:58,097 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:40:58,102 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:40:58,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:40:58,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:40:58,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:40:58,132 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:40:58,134 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:40:58,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:40:58,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:40:58,146 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:40:58,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:40:58,149 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:40:58,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:40:58,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:40:58,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:40:58,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:40:58,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:40:58,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:40:58,160 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:40:58,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:40:58,161 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:40:58,162 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:40:58,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:40:58,165 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:40:58,166 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:40:58,167 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-01 15:40:58,230 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:40:58,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:40:58,232 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:40:58,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:40:58,233 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:40:58,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:40:58,234 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:40:58,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:40:58,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:40:58,235 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:40:58,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:40:58,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:40:58,235 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 15:40:58,236 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 15:40:58,236 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:40:58,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:40:58,236 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:40:58,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:40:58,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:40:58,237 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:40:58,237 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:40:58,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:40:58,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:40:58,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:40:58,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:40:58,241 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:40:58,241 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 15:40:58,241 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 15:40:58,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:40:58,243 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:40:58,243 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 15:40:58,243 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-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 966074c4bc45853152b23ed1081806a59c179b92 [2020-12-01 15:40:58,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:40:58,802 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:40:58,805 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:40:58,806 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:40:58,808 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:40:58,809 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c [2020-12-01 15:40:58,894 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/data/9f9c4ddeb/398def2388be4a36b6b844a80ad6b5b6/FLAG045d02486 [2020-12-01 15:40:59,540 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:40:59,540 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/sv-benchmarks/c/float-newlib/double_req_bl_0620a.c [2020-12-01 15:40:59,559 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/data/9f9c4ddeb/398def2388be4a36b6b844a80ad6b5b6/FLAG045d02486 [2020-12-01 15:40:59,899 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/data/9f9c4ddeb/398def2388be4a36b6b844a80ad6b5b6 [2020-12-01 15:40:59,902 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:40:59,906 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:40:59,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:40:59,912 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:40:59,916 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:40:59,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:40:59" (1/1) ... [2020-12-01 15:40:59,923 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45da923b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:40:59, skipping insertion in model container [2020-12-01 15:40:59,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:40:59" (1/1) ... [2020-12-01 15:40:59,933 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:40:59,974 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:41:00,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:41:00,289 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:41:00,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:41:00,440 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:41:00,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:00 WrapperNode [2020-12-01 15:41:00,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:41:00,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:41:00,442 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:41:00,443 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:41:00,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:00" (1/1) ... [2020-12-01 15:41:00,468 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:00" (1/1) ... [2020-12-01 15:41:00,520 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:41:00,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:41:00,529 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:41:00,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:41:00,541 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:00" (1/1) ... [2020-12-01 15:41:00,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:00" (1/1) ... [2020-12-01 15:41:00,555 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:00" (1/1) ... [2020-12-01 15:41:00,556 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:00" (1/1) ... [2020-12-01 15:41:00,573 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:00" (1/1) ... [2020-12-01 15:41:00,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:00" (1/1) ... [2020-12-01 15:41:00,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:00" (1/1) ... [2020-12-01 15:41:00,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:41:00,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:41:00,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:41:00,591 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:41:00,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/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 [2020-12-01 15:41:00,673 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-01 15:41:00,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-01 15:41:00,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-01 15:41:00,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:41:00,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2020-12-01 15:41:00,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-01 15:41:00,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:41:00,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:41:00,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-01 15:41:00,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:41:18,433 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:41:18,433 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-12-01 15:41:18,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:41:18 BoogieIcfgContainer [2020-12-01 15:41:18,435 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:41:18,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:41:18,438 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:41:18,441 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:41:18,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:40:59" (1/3) ... [2020-12-01 15:41:18,443 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42a3aa22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:41:18, skipping insertion in model container [2020-12-01 15:41:18,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:41:00" (2/3) ... [2020-12-01 15:41:18,444 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42a3aa22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:41:18, skipping insertion in model container [2020-12-01 15:41:18,444 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:41:18" (3/3) ... [2020-12-01 15:41:18,446 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620a.c [2020-12-01 15:41:18,462 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:41:18,466 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:41:18,480 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:41:18,507 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:41:18,508 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:41:18,508 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:41:18,508 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:41:18,508 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:41:18,508 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:41:18,509 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:41:18,509 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:41:18,524 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-12-01 15:41:18,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 15:41:18,530 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:41:18,531 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:41:18,531 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:41:18,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:41:18,538 INFO L82 PathProgramCache]: Analyzing trace with hash 2040843078, now seen corresponding path program 1 times [2020-12-01 15:41:18,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:41:18,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [824445251] [2020-12-01 15:41:18,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/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 [2020-12-01 15:41:19,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:41:19,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-01 15:41:19,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:41:19,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:41:19,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:41:19,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:41:19,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [824445251] [2020-12-01 15:41:19,151 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:41:19,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-01 15:41:19,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470628128] [2020-12-01 15:41:19,161 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:41:19,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:41:19,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:41:19,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:41:19,185 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2020-12-01 15:41:19,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:41:19,224 INFO L93 Difference]: Finished difference Result 77 states and 121 transitions. [2020-12-01 15:41:19,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:41:19,226 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-12-01 15:41:19,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:41:19,247 INFO L225 Difference]: With dead ends: 77 [2020-12-01 15:41:19,248 INFO L226 Difference]: Without dead ends: 36 [2020-12-01 15:41:19,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:41:19,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-12-01 15:41:19,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-12-01 15:41:19,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-12-01 15:41:19,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 47 transitions. [2020-12-01 15:41:19,320 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 47 transitions. Word has length 11 [2020-12-01 15:41:19,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:41:19,320 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 47 transitions. [2020-12-01 15:41:19,320 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:41:19,321 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2020-12-01 15:41:19,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 15:41:19,321 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:41:19,322 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:41:19,526 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 15:41:19,531 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:41:19,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:41:19,532 INFO L82 PathProgramCache]: Analyzing trace with hash -1316832376, now seen corresponding path program 1 times [2020-12-01 15:41:19,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:41:19,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [987187330] [2020-12-01 15:41:19,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/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 [2020-12-01 15:41:19,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:41:19,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 15:41:19,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:41:20,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:41:20,452 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:41:21,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:41:21,177 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [987187330] [2020-12-01 15:41:21,177 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:41:21,177 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-12-01 15:41:21,178 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545675377] [2020-12-01 15:41:21,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-01 15:41:21,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:41:21,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-01 15:41:21,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:41:21,181 INFO L87 Difference]: Start difference. First operand 36 states and 47 transitions. Second operand 8 states. [2020-12-01 15:41:21,447 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-12-01 15:41:21,658 WARN L197 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-12-01 15:41:31,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:41:31,484 INFO L93 Difference]: Finished difference Result 59 states and 72 transitions. [2020-12-01 15:41:31,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:41:31,485 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-12-01 15:41:31,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:41:31,494 INFO L225 Difference]: With dead ends: 59 [2020-12-01 15:41:31,496 INFO L226 Difference]: Without dead ends: 32 [2020-12-01 15:41:31,498 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-12-01 15:41:31,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-12-01 15:41:31,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2020-12-01 15:41:31,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-12-01 15:41:31,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2020-12-01 15:41:31,508 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 13 [2020-12-01 15:41:31,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:41:31,510 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2020-12-01 15:41:31,510 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-01 15:41:31,511 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2020-12-01 15:41:31,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 15:41:31,512 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:41:31,513 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:41:31,724 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-01 15:41:31,725 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:41:31,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:41:31,726 INFO L82 PathProgramCache]: Analyzing trace with hash 1440122883, now seen corresponding path program 1 times [2020-12-01 15:41:31,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:41:31,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1705678233] [2020-12-01 15:41:31,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/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 [2020-12-01 15:41:32,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:41:32,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-01 15:41:32,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:41:32,772 WARN L197 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 1 [2020-12-01 15:41:32,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:41:32,793 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:41:33,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:41:33,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1705678233] [2020-12-01 15:41:33,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:41:33,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2020-12-01 15:41:33,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919662238] [2020-12-01 15:41:33,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-01 15:41:33,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:41:33,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 15:41:33,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:41:33,259 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 7 states. [2020-12-01 15:41:33,901 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-12-01 15:41:34,539 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-01 15:41:51,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:41:51,212 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2020-12-01 15:41:51,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:41:51,213 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-12-01 15:41:51,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:41:51,214 INFO L225 Difference]: With dead ends: 35 [2020-12-01 15:41:51,214 INFO L226 Difference]: Without dead ends: 32 [2020-12-01 15:41:51,215 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:41:51,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-12-01 15:41:51,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2020-12-01 15:41:51,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-12-01 15:41:51,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2020-12-01 15:41:51,220 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 13 [2020-12-01 15:41:51,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:41:51,221 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2020-12-01 15:41:51,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-01 15:41:51,221 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2020-12-01 15:41:51,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 15:41:51,222 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:41:51,222 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:41:51,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-01 15:41:51,444 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:41:51,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:41:51,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1041172097, now seen corresponding path program 1 times [2020-12-01 15:41:51,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:41:51,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1286296621] [2020-12-01 15:41:51,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/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 [2020-12-01 15:41:56,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:41:56,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-01 15:41:56,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:41:56,761 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-01 15:41:57,111 WARN L197 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-12-01 15:41:57,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:41:57,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:42:00,055 WARN L197 SmtUtils]: Spent 723.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-12-01 15:42:01,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:42:01,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1286296621] [2020-12-01 15:42:01,094 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:42:01,094 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-12-01 15:42:01,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832031777] [2020-12-01 15:42:01,095 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-01 15:42:01,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:42:01,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-01 15:42:01,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:42:01,096 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 6 states. [2020-12-01 15:42:01,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:42:01,698 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2020-12-01 15:42:01,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 15:42:01,708 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-12-01 15:42:01,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:42:01,708 INFO L225 Difference]: With dead ends: 32 [2020-12-01 15:42:01,708 INFO L226 Difference]: Without dead ends: 18 [2020-12-01 15:42:01,709 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-01 15:42:01,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-12-01 15:42:01,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-12-01 15:42:01,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-12-01 15:42:01,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2020-12-01 15:42:01,713 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2020-12-01 15:42:01,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:42:01,714 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2020-12-01 15:42:01,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-01 15:42:01,714 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2020-12-01 15:42:01,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 15:42:01,715 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:42:01,715 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:42:01,915 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-01 15:42:01,916 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:42:01,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:42:01,916 INFO L82 PathProgramCache]: Analyzing trace with hash 1453962584, now seen corresponding path program 1 times [2020-12-01 15:42:01,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:42:01,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [186238412] [2020-12-01 15:42:01,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/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 [2020-12-01 15:42:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:42:02,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-01 15:42:02,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:42:03,372 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:42:04,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:42:04,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:42:07,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:42:07,393 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [186238412] [2020-12-01 15:42:07,393 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:42:07,393 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2020-12-01 15:42:07,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161311741] [2020-12-01 15:42:07,394 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-01 15:42:07,394 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:42:07,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-01 15:42:07,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-12-01 15:42:07,396 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 14 states. [2020-12-01 15:42:08,367 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-12-01 15:42:08,860 WARN L197 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-12-01 15:42:09,297 WARN L197 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-12-01 15:42:09,738 WARN L197 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-12-01 15:42:10,168 WARN L197 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-12-01 15:42:10,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:42:10,207 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-12-01 15:42:10,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-01 15:42:10,208 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2020-12-01 15:42:10,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:42:10,209 INFO L225 Difference]: With dead ends: 18 [2020-12-01 15:42:10,209 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:42:10,210 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-12-01 15:42:10,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:42:10,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:42:10,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:42:10,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:42:10,210 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-12-01 15:42:10,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:42:10,210 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:42:10,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-01 15:42:10,211 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:42:10,211 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:42:10,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-01 15:42:10,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:42:10,943 WARN L197 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-01 15:42:11,456 WARN L197 SmtUtils]: Spent 512.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-12-01 15:42:11,899 WARN L197 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-12-01 15:42:12,118 WARN L197 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2020-12-01 15:42:12,120 INFO L262 CegarLoopResult]: For program point L85(lines 85 88) no Hoare annotation was computed. [2020-12-01 15:42:12,120 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-12-01 15:42:12,120 INFO L262 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-12-01 15:42:12,120 INFO L262 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-12-01 15:42:12,120 INFO L262 CegarLoopResult]: For program point L160-2(lines 160 163) no Hoare annotation was computed. [2020-12-01 15:42:12,120 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:42:12,120 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:42:12,120 INFO L262 CegarLoopResult]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2020-12-01 15:42:12,121 INFO L258 CegarLoopResult]: At program point L78-2(lines 78 82) the Hoare annotation is: false [2020-12-01 15:42:12,121 INFO L262 CegarLoopResult]: For program point L78-3(lines 76 89) no Hoare annotation was computed. [2020-12-01 15:42:12,121 INFO L262 CegarLoopResult]: For program point L70-1(lines 70 74) no Hoare annotation was computed. [2020-12-01 15:42:12,121 INFO L258 CegarLoopResult]: At program point L70-2(lines 70 74) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode 1.0) ~one_atan~0) (= currentRoundingMode roundNearestTiesToEven) (= ~huge_atan~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (= ULTIMATE.start_atan_double_~x (fp.neg (_ +zero 11 53)))) [2020-12-01 15:42:12,121 INFO L262 CegarLoopResult]: For program point L70-3(lines 70 74) no Hoare annotation was computed. [2020-12-01 15:42:12,121 INFO L262 CegarLoopResult]: For program point L128(lines 128 133) no Hoare annotation was computed. [2020-12-01 15:42:12,122 INFO L262 CegarLoopResult]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2020-12-01 15:42:12,122 INFO L258 CegarLoopResult]: At program point L21-2(lines 21 25) the Hoare annotation is: false [2020-12-01 15:42:12,122 INFO L258 CegarLoopResult]: At program point L145(lines 136 146) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= ((_ to_fp 11 53) currentRoundingMode 1.0) ~one_atan~0) |ULTIMATE.start_main_#t~short38| (= .cse0 ULTIMATE.start_main_~res~0) (= currentRoundingMode roundNearestTiesToEven) (exists ((|v_skolemized_q#valueAsBitvector_14| (_ BitVec 64))) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_14|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_14|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_14|)) (fp.neg (_ +zero 11 53))) (= ULTIMATE.start___signbit_double_~msw~0 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_14|)))) (= ~huge_atan~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (= ULTIMATE.start___signbit_double_~x .cse0) (= |ULTIMATE.start_atan_double_#res| .cse0) (= ULTIMATE.start_atan_double_~x .cse0) (= (bvadd |ULTIMATE.start___signbit_double_#res| (_ bv4294967295 32)) (_ bv0 32)))) [2020-12-01 15:42:12,122 INFO L262 CegarLoopResult]: For program point L139-1(lines 139 143) no Hoare annotation was computed. [2020-12-01 15:42:12,123 INFO L258 CegarLoopResult]: At program point L139-2(lines 139 143) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= ((_ to_fp 11 53) currentRoundingMode 1.0) ~one_atan~0) |ULTIMATE.start_main_#t~short38| (= .cse0 ULTIMATE.start_main_~res~0) (= currentRoundingMode roundNearestTiesToEven) (= ~huge_atan~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (= ULTIMATE.start___signbit_double_~x .cse0) (= |ULTIMATE.start_atan_double_#res| .cse0) (= ULTIMATE.start_atan_double_~x .cse0))) [2020-12-01 15:42:12,123 INFO L262 CegarLoopResult]: For program point L139-3(lines 139 143) no Hoare annotation was computed. [2020-12-01 15:42:12,123 INFO L262 CegarLoopResult]: For program point L98(lines 98 114) no Hoare annotation was computed. [2020-12-01 15:42:12,123 INFO L258 CegarLoopResult]: At program point L32(lines 19 33) the Hoare annotation is: false [2020-12-01 15:42:12,123 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 15:42:12,123 INFO L262 CegarLoopResult]: For program point L90(lines 90 115) no Hoare annotation was computed. [2020-12-01 15:42:12,124 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-12-01 15:42:12,124 INFO L262 CegarLoopResult]: For program point L107(lines 107 113) no Hoare annotation was computed. [2020-12-01 15:42:12,124 INFO L262 CegarLoopResult]: For program point L107-2(lines 90 115) no Hoare annotation was computed. [2020-12-01 15:42:12,124 INFO L265 CegarLoopResult]: At program point L165(lines 148 166) the Hoare annotation is: true [2020-12-01 15:42:12,124 INFO L262 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-12-01 15:42:12,124 INFO L262 CegarLoopResult]: For program point L99(lines 99 105) no Hoare annotation was computed. [2020-12-01 15:42:12,124 INFO L262 CegarLoopResult]: For program point L132-2(line 132) no Hoare annotation was computed. [2020-12-01 15:42:12,125 INFO L258 CegarLoopResult]: At program point L132-3(lines 66 134) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= ((_ to_fp 11 53) currentRoundingMode 1.0) ~one_atan~0) (= currentRoundingMode roundNearestTiesToEven) (= ~huge_atan~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0)) (= |ULTIMATE.start_atan_double_#res| .cse0) (= ULTIMATE.start_atan_double_~x .cse0))) [2020-12-01 15:42:12,125 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:42:12,125 INFO L262 CegarLoopResult]: For program point L91(lines 91 94) no Hoare annotation was computed. [2020-12-01 15:42:12,125 INFO L262 CegarLoopResult]: For program point L91-2(lines 91 94) no Hoare annotation was computed. [2020-12-01 15:42:12,125 INFO L262 CegarLoopResult]: For program point L92(lines 92 93) no Hoare annotation was computed. [2020-12-01 15:42:12,125 INFO L262 CegarLoopResult]: For program point L26(lines 26 31) no Hoare annotation was computed. [2020-12-01 15:42:12,125 INFO L262 CegarLoopResult]: For program point L26-1(lines 19 33) no Hoare annotation was computed. [2020-12-01 15:42:12,125 INFO L262 CegarLoopResult]: For program point L26-2(lines 26 31) no Hoare annotation was computed. [2020-12-01 15:42:12,125 INFO L262 CegarLoopResult]: For program point L76(lines 76 89) no Hoare annotation was computed. [2020-12-01 15:42:12,136 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:12,138 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,139 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,139 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,141 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:12,141 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,141 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,142 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,153 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:12,154 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:12,154 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:12,154 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:12,154 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:12,155 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,155 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,155 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,156 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:12,157 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:12,157 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:12,157 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:12,157 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:12,158 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,158 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,158 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,160 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:12,160 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,160 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,161 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,161 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:12,162 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,162 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,162 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,163 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:12,163 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,164 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,164 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,164 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:12,165 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,165 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,165 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:42:12 BoogieIcfgContainer [2020-12-01 15:42:12,168 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:42:12,168 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:42:12,168 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:42:12,169 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:42:12,169 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:41:18" (3/4) ... [2020-12-01 15:42:12,173 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:42:12,203 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-12-01 15:42:12,204 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-12-01 15:42:12,204 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:42:12,205 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:42:12,240 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) [2020-12-01 15:42:12,241 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan && aux-res == -0.0 && __signbit_double(res) == 1-aux) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) [2020-12-01 15:42:12,242 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan && aux-res == -0.0 && __signbit_double(res) == 1-aux) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_skolemized_q#valueAsBitvector_14 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_14[63:63], v_skolemized_q#valueAsBitvector_14[62:52], v_skolemized_q#valueAsBitvector_14[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_q#valueAsBitvector_14[63:32])) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~bvadd64(\result, 4294967295bv32) == 0bv32 [2020-12-01 15:42:12,308 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_47f740a6-52d9-451f-9be0-9748ba74f7e9/bin/uautomizer/witness.graphml [2020-12-01 15:42:12,308 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:42:12,309 INFO L168 Benchmark]: Toolchain (without parser) took 72402.41 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 29.9 MB in the beginning and 44.7 MB in the end (delta: -14.7 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:42:12,309 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 52.4 MB. Free memory was 34.8 MB in the beginning and 34.7 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:42:12,310 INFO L168 Benchmark]: CACSL2BoogieTranslator took 529.53 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 29.8 MB in the beginning and 46.0 MB in the end (delta: -16.2 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:42:12,313 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.66 ms. Allocated memory is still 65.0 MB. Free memory was 45.8 MB in the beginning and 43.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:42:12,313 INFO L168 Benchmark]: Boogie Preprocessor took 62.02 ms. Allocated memory is still 65.0 MB. Free memory was 43.5 MB in the beginning and 41.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:42:12,314 INFO L168 Benchmark]: RCFGBuilder took 17845.03 ms. Allocated memory is still 65.0 MB. Free memory was 41.0 MB in the beginning and 38.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. [2020-12-01 15:42:12,314 INFO L168 Benchmark]: TraceAbstraction took 53730.16 ms. Allocated memory is still 65.0 MB. Free memory was 38.6 MB in the beginning and 23.1 MB in the end (delta: 15.5 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. [2020-12-01 15:42:12,315 INFO L168 Benchmark]: Witness Printer took 139.70 ms. Allocated memory is still 65.0 MB. Free memory was 23.1 MB in the beginning and 44.7 MB in the end (delta: -21.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:42:12,317 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 52.4 MB. Free memory was 34.8 MB in the beginning and 34.7 MB in the end (delta: 63.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 529.53 ms. Allocated memory was 52.4 MB in the beginning and 65.0 MB in the end (delta: 12.6 MB). Free memory was 29.8 MB in the beginning and 46.0 MB in the end (delta: -16.2 MB). Peak memory consumption was 7.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 84.66 ms. Allocated memory is still 65.0 MB. Free memory was 45.8 MB in the beginning and 43.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.02 ms. Allocated memory is still 65.0 MB. Free memory was 43.5 MB in the beginning and 41.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 17845.03 ms. Allocated memory is still 65.0 MB. Free memory was 41.0 MB in the beginning and 38.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 53730.16 ms. Allocated memory is still 65.0 MB. Free memory was 38.6 MB in the beginning and 23.1 MB in the end (delta: 15.5 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. * Witness Printer took 139.70 ms. Allocated memory is still 65.0 MB. Free memory was 23.1 MB in the beginning and 44.7 MB in the end (delta: -21.6 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] - 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 148]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 66]: Loop Invariant [2020-12-01 15:42:12,332 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:12,333 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,333 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,333 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,334 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:12,334 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,334 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,334 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 136]: Loop Invariant [2020-12-01 15:42:12,335 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:12,336 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:12,336 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:12,336 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:12,336 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:12,336 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,337 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,337 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,346 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:12,346 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:12,346 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:12,346 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:12,347 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_14,QUANTIFIED] [2020-12-01 15:42:12,350 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,354 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,357 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan && aux-res == -0.0 && __signbit_double(res) == 1-aux) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists v_skolemized_q#valueAsBitvector_14 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_14[63:63], v_skolemized_q#valueAsBitvector_14[62:52], v_skolemized_q#valueAsBitvector_14[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && msw == v_skolemized_q#valueAsBitvector_14[63:32])) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~bvadd64(\result, 4294967295bv32) == 0bv32 - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 139]: Loop Invariant [2020-12-01 15:42:12,359 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:12,359 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,359 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,359 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,360 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:12,360 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,360 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,360 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan && aux-res == -0.0 && __signbit_double(res) == 1-aux) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 70]: Loop Invariant [2020-12-01 15:42:12,361 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:12,361 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,361 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,361 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,361 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 15:42:12,361 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,362 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 15:42:12,362 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_atan && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300)) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 51.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 31.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 113 SDtfs, 180 SDslu, 180 SDs, 0 SdLazy, 70 SolverSat, 14 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 27.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 101 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 13.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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, 8 LocationsWithAnnotation, 8 PreInvPairs, 13 NumberOfFragments, 127 HoareAnnotationTreeSize, 8 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 6.0s SatisfiabilityAnalysisTime, 12.3s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 130 ConstructedInterpolants, 16 QuantifiedInterpolants, 10009 SizeOfPredicates, 28 NumberOfNonLiveVariables, 625 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...