./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0931.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0931.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/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 0a345343e4b2fce1b8c67d8cf098c119a4547223 ........................................................................................................................................................................................................................................................................................................................ 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_f90f140f-fbea-4500-b371-cef1aa0af440/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0931.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/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 0a345343e4b2fce1b8c67d8cf098c119a4547223 .................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:02:19,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:02:19,824 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:02:19,872 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:02:19,872 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:02:19,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:02:19,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:02:19,878 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:02:19,880 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:02:19,882 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:02:19,883 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:02:19,884 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:02:19,885 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:02:19,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:02:19,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:02:19,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:02:19,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:02:19,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:02:19,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:02:19,896 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:02:19,901 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:02:19,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:02:19,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:02:19,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:02:19,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:02:19,916 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:02:19,917 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:02:19,922 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:02:19,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:02:19,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:02:19,927 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:02:19,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:02:19,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:02:19,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:02:19,933 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:02:19,933 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:02:19,934 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:02:19,934 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:02:19,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:02:19,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:02:19,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:02:19,939 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 01:02:19,980 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:02:19,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:02:19,982 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:02:19,982 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:02:19,982 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:02:19,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:02:19,983 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:02:19,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:02:19,983 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:02:19,984 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:02:19,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:02:19,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:02:19,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:02:19,985 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:02:19,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:02:19,986 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:02:19,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:02:19,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:02:19,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:02:19,987 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:02:19,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:02:19,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:02:19,987 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:02:19,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:02:19,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:02:19,988 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 01:02:19,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:02:19,988 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:02:19,989 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:02:19,989 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_f90f140f-fbea-4500-b371-cef1aa0af440/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a345343e4b2fce1b8c67d8cf098c119a4547223 [2020-11-30 01:02:20,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:02:20,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:02:20,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:02:20,269 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:02:20,270 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:02:20,271 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0931.c [2020-11-30 01:02:20,353 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/bin/uautomizer/data/c18422c75/1993857b83724efb9103885e2e2c258b/FLAG2586e664d [2020-11-30 01:02:20,909 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:02:20,910 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/sv-benchmarks/c/float-newlib/double_req_bl_0931.c [2020-11-30 01:02:20,917 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/bin/uautomizer/data/c18422c75/1993857b83724efb9103885e2e2c258b/FLAG2586e664d [2020-11-30 01:02:21,272 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/bin/uautomizer/data/c18422c75/1993857b83724efb9103885e2e2c258b [2020-11-30 01:02:21,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:02:21,276 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:02:21,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:02:21,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:02:21,281 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:02:21,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:02:21" (1/1) ... [2020-11-30 01:02:21,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5be79cdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:21, skipping insertion in model container [2020-11-30 01:02:21,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:02:21" (1/1) ... [2020-11-30 01:02:21,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:02:21,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:02:21,550 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:02:21,560 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:02:21,610 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:02:21,629 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:02:21,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:21 WrapperNode [2020-11-30 01:02:21,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:02:21,631 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:02:21,631 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:02:21,631 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:02:21,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:21" (1/1) ... [2020-11-30 01:02:21,649 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:21" (1/1) ... [2020-11-30 01:02:21,678 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:02:21,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:02:21,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:02:21,679 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:02:21,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:21" (1/1) ... [2020-11-30 01:02:21,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:21" (1/1) ... [2020-11-30 01:02:21,696 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:21" (1/1) ... [2020-11-30 01:02:21,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:21" (1/1) ... [2020-11-30 01:02:21,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:21" (1/1) ... [2020-11-30 01:02:21,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:21" (1/1) ... [2020-11-30 01:02:21,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:21" (1/1) ... [2020-11-30 01:02:21,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:02:21,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:02:21,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:02:21,754 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:02:21,755 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:21" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/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 [2020-11-30 01:02:21,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:02:21,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:02:21,846 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 01:02:21,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 01:02:21,847 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 01:02:21,847 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:02:21,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:02:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 01:02:21,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:02:22,316 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:02:22,317 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-30 01:02:22,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:22 BoogieIcfgContainer [2020-11-30 01:02:22,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:02:22,321 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:02:22,321 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:02:22,324 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:02:22,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:02:21" (1/3) ... [2020-11-30 01:02:22,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359beae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:02:22, skipping insertion in model container [2020-11-30 01:02:22,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:21" (2/3) ... [2020-11-30 01:02:22,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@359beae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:02:22, skipping insertion in model container [2020-11-30 01:02:22,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:22" (3/3) ... [2020-11-30 01:02:22,328 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0931.c [2020-11-30 01:02:22,339 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:02:22,344 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:02:22,356 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:02:22,408 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:02:22,408 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:02:22,408 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:02:22,408 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:02:22,409 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:02:22,409 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:02:22,409 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:02:22,409 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:02:22,423 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-11-30 01:02:22,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 01:02:22,429 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:22,430 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:22,431 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:02:22,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:22,436 INFO L82 PathProgramCache]: Analyzing trace with hash -2110731690, now seen corresponding path program 1 times [2020-11-30 01:02:22,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:22,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246177657] [2020-11-30 01:02:22,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:22,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:22,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246177657] [2020-11-30 01:02:22,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:02:22,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:02:22,582 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342424054] [2020-11-30 01:02:22,586 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:02:22,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 01:02:22,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:02:22,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:02:22,602 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-11-30 01:02:22,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:22,645 INFO L93 Difference]: Finished difference Result 63 states and 101 transitions. [2020-11-30 01:02:22,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:02:22,647 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-11-30 01:02:22,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:02:22,664 INFO L225 Difference]: With dead ends: 63 [2020-11-30 01:02:22,664 INFO L226 Difference]: Without dead ends: 29 [2020-11-30 01:02:22,668 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 [2020-11-30 01:02:22,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-30 01:02:22,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-11-30 01:02:22,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-30 01:02:22,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2020-11-30 01:02:22,731 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 12 [2020-11-30 01:02:22,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:02:22,732 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2020-11-30 01:02:22,732 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:02:22,732 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2020-11-30 01:02:22,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 01:02:22,733 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:22,734 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:22,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:02:22,734 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:02:22,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:22,738 INFO L82 PathProgramCache]: Analyzing trace with hash 1825265086, now seen corresponding path program 1 times [2020-11-30 01:02:22,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 01:02:22,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160511431] [2020-11-30 01:02:22,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:02:22,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:02:22,944 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:02:23,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:02:23,008 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:02:23,037 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 01:02:23,038 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:02:23,039 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:02:23,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:02:23 BoogieIcfgContainer [2020-11-30 01:02:23,077 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:02:23,077 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:02:23,077 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:02:23,078 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:02:23,078 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:22" (3/4) ... [2020-11-30 01:02:23,081 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 01:02:23,082 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:02:23,089 INFO L168 Benchmark]: Toolchain (without parser) took 1806.86 ms. Allocated memory is still 132.1 MB. Free memory was 101.0 MB in the beginning and 91.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 8.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:23,091 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 79.7 MB. Free memory was 40.3 MB in the beginning and 40.2 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:02:23,092 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.65 ms. Allocated memory is still 132.1 MB. Free memory was 100.6 MB in the beginning and 105.4 MB in the end (delta: -4.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:23,094 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.34 ms. Allocated memory is still 132.1 MB. Free memory was 105.0 MB in the beginning and 102.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:23,095 INFO L168 Benchmark]: Boogie Preprocessor took 73.75 ms. Allocated memory is still 132.1 MB. Free memory was 102.9 MB in the beginning and 101.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:23,096 INFO L168 Benchmark]: RCFGBuilder took 565.42 ms. Allocated memory is still 132.1 MB. Free memory was 101.2 MB in the beginning and 78.1 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:23,097 INFO L168 Benchmark]: TraceAbstraction took 756.29 ms. Allocated memory is still 132.1 MB. Free memory was 77.7 MB in the beginning and 91.9 MB in the end (delta: -14.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:02:23,098 INFO L168 Benchmark]: Witness Printer took 4.33 ms. Allocated memory is still 132.1 MB. Free memory was 91.9 MB in the beginning and 91.1 MB in the end (delta: 821.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:23,102 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 79.7 MB. Free memory was 40.3 MB in the beginning and 40.2 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 352.65 ms. Allocated memory is still 132.1 MB. Free memory was 100.6 MB in the beginning and 105.4 MB in the end (delta: -4.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.34 ms. Allocated memory is still 132.1 MB. Free memory was 105.0 MB in the beginning and 102.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 73.75 ms. Allocated memory is still 132.1 MB. Free memory was 102.9 MB in the beginning and 101.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 565.42 ms. Allocated memory is still 132.1 MB. Free memory was 101.2 MB in the beginning and 78.1 MB in the end (delta: 23.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 756.29 ms. Allocated memory is still 132.1 MB. Free memory was 77.7 MB in the beginning and 91.9 MB in the end (delta: -14.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.33 ms. Allocated memory is still 132.1 MB. Free memory was 91.9 MB in the beginning and 91.1 MB in the end (delta: 821.9 kB). Peak memory consumption was 2.1 MB. 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 bitwiseOr at line 29, overapproximation of someBinaryArithmeticDOUBLEoperation at line 62, overapproximation of bitwiseAnd at line 28. Possible FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L134] double x = 1.0 / 0.0; [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L60] COND TRUE hx < 0x00100000 VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L61] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L62] return -two54_log / zero; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L135] double res = __ieee754_log(x); [L21] __int32_t hx, lx; VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (hx) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lx) = ew_u.parts.lsw [L28] hx &= 0x7fffffff [L29] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L30] hx = 0x7ff00000 - hx [L31] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] [L138] COND TRUE !isinf_double(res) [L3] __assert_fail("0", "double_req_bl_0931.c", 3, "reach_error") VAL [Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, two54_log=18014398509481984, zero=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 42 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=33occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 121 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-a4ecdab [2020-11-30 01:02:25,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:02:25,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:02:25,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-30 01:02:25,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:02:25,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:02:25,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:02:25,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:02:25,501 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:02:25,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:02:25,512 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:02:25,524 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:02:25,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:02:25,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:02:25,534 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:02:25,536 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:02:25,540 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:02:25,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:02:25,541 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:02:25,543 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:02:25,544 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:02:25,546 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:02:25,546 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:02:25,547 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:02:25,549 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:02:25,550 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:02:25,551 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:02:25,551 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:02:25,552 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:02:25,552 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:02:25,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:02:25,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:02:25,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:02:25,556 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-30 01:02:25,592 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:02:25,594 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:02:25,597 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:02:25,597 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:02:25,597 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 01:02:25,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:02:25,598 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:02:25,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:02:25,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:02:25,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:02:25,600 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:02:25,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:02:25,600 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 01:02:25,600 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 01:02:25,601 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:02:25,601 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:02:25,601 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:02:25,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:02:25,602 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:02:25,602 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 01:02:25,602 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:02:25,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:02:25,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:02:25,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:02:25,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:02:25,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:02:25,603 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-30 01:02:25,604 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 01:02:25,604 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:02:25,604 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:02:25,604 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:02:25,605 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_f90f140f-fbea-4500-b371-cef1aa0af440/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a345343e4b2fce1b8c67d8cf098c119a4547223 [2020-11-30 01:02:26,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:02:26,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:02:26,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:02:26,042 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:02:26,043 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:02:26,043 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0931.c [2020-11-30 01:02:26,117 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/bin/uautomizer/data/5801a8855/2a85fcf484e841df9b9db9f08ab9a329/FLAG95c17053e [2020-11-30 01:02:26,614 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:02:26,617 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/sv-benchmarks/c/float-newlib/double_req_bl_0931.c [2020-11-30 01:02:26,626 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/bin/uautomizer/data/5801a8855/2a85fcf484e841df9b9db9f08ab9a329/FLAG95c17053e [2020-11-30 01:02:26,967 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/bin/uautomizer/data/5801a8855/2a85fcf484e841df9b9db9f08ab9a329 [2020-11-30 01:02:26,970 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:02:26,971 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:02:26,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:02:26,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:02:26,977 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:02:26,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:02:26" (1/1) ... [2020-11-30 01:02:26,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2deeb41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:26, skipping insertion in model container [2020-11-30 01:02:26,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:02:26" (1/1) ... [2020-11-30 01:02:26,987 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:02:27,023 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:02:27,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:02:27,304 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:02:27,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:02:27,429 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:02:27,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:27 WrapperNode [2020-11-30 01:02:27,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:02:27,432 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:02:27,433 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:02:27,435 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:02:27,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:27" (1/1) ... [2020-11-30 01:02:27,454 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:27" (1/1) ... [2020-11-30 01:02:27,480 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:02:27,481 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:02:27,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:02:27,481 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:02:27,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:27" (1/1) ... [2020-11-30 01:02:27,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:27" (1/1) ... [2020-11-30 01:02:27,499 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:27" (1/1) ... [2020-11-30 01:02:27,500 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:27" (1/1) ... [2020-11-30 01:02:27,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:27" (1/1) ... [2020-11-30 01:02:27,531 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:27" (1/1) ... [2020-11-30 01:02:27,537 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:27" (1/1) ... [2020-11-30 01:02:27,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:02:27,550 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:02:27,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:02:27,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:02:27,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/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 [2020-11-30 01:02:27,633 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-30 01:02:27,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-30 01:02:27,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 01:02:27,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:02:27,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 01:02:27,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:02:27,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:02:27,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 01:02:27,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 01:02:51,660 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:02:51,663 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-30 01:02:51,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:51 BoogieIcfgContainer [2020-11-30 01:02:51,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:02:51,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:02:51,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:02:51,670 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:02:51,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:02:26" (1/3) ... [2020-11-30 01:02:51,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aada01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:02:51, skipping insertion in model container [2020-11-30 01:02:51,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:02:27" (2/3) ... [2020-11-30 01:02:51,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1aada01 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:02:51, skipping insertion in model container [2020-11-30 01:02:51,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:51" (3/3) ... [2020-11-30 01:02:51,674 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0931.c [2020-11-30 01:02:51,682 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:02:51,686 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:02:51,697 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:02:51,719 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:02:51,719 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:02:51,719 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:02:51,719 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:02:51,719 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:02:51,719 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:02:51,720 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:02:51,720 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:02:51,730 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-11-30 01:02:51,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 01:02:51,735 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:51,735 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:51,736 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:02:51,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:51,740 INFO L82 PathProgramCache]: Analyzing trace with hash -2110731690, now seen corresponding path program 1 times [2020-11-30 01:02:51,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:02:51,751 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983952363] [2020-11-30 01:02:51,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/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 [2020-11-30 01:02:52,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:52,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 01:02:52,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:02:52,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:52,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:02:52,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:52,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983952363] [2020-11-30 01:02:52,991 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:02:52,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 01:02:52,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645888446] [2020-11-30 01:02:52,997 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 01:02:52,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:02:53,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 01:02:53,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:02:53,015 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-11-30 01:02:53,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:53,040 INFO L93 Difference]: Finished difference Result 63 states and 101 transitions. [2020-11-30 01:02:53,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 01:02:53,042 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-11-30 01:02:53,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:02:53,055 INFO L225 Difference]: With dead ends: 63 [2020-11-30 01:02:53,055 INFO L226 Difference]: Without dead ends: 29 [2020-11-30 01:02:53,062 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 01:02:53,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-30 01:02:53,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-11-30 01:02:53,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-30 01:02:53,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 39 transitions. [2020-11-30 01:02:53,102 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 39 transitions. Word has length 12 [2020-11-30 01:02:53,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:02:53,103 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 39 transitions. [2020-11-30 01:02:53,103 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 01:02:53,103 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2020-11-30 01:02:53,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 01:02:53,104 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:53,105 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:53,311 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 01:02:53,311 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:02:53,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:53,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1825265086, now seen corresponding path program 1 times [2020-11-30 01:02:53,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:02:53,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1906972721] [2020-11-30 01:02:53,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/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 [2020-11-30 01:02:54,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:02:54,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 01:02:54,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:02:54,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:54,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:02:54,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:02:54,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1906972721] [2020-11-30 01:02:54,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:02:54,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-30 01:02:54,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48500584] [2020-11-30 01:02:54,559 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 01:02:54,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 01:02:54,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 01:02:54,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 01:02:54,561 INFO L87 Difference]: Start difference. First operand 29 states and 39 transitions. Second operand 6 states. [2020-11-30 01:02:54,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:02:54,714 INFO L93 Difference]: Finished difference Result 38 states and 48 transitions. [2020-11-30 01:02:54,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:02:54,724 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-30 01:02:54,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:02:54,724 INFO L225 Difference]: With dead ends: 38 [2020-11-30 01:02:54,724 INFO L226 Difference]: Without dead ends: 15 [2020-11-30 01:02:54,725 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-30 01:02:54,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-11-30 01:02:54,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-11-30 01:02:54,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-30 01:02:54,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2020-11-30 01:02:54,729 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 14 [2020-11-30 01:02:54,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:02:54,730 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2020-11-30 01:02:54,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 01:02:54,730 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-11-30 01:02:54,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 01:02:54,730 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:02:54,731 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:02:54,931 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 01:02:54,931 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:02:54,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:02:54,932 INFO L82 PathProgramCache]: Analyzing trace with hash 2016616349, now seen corresponding path program 1 times [2020-11-30 01:02:54,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 01:02:54,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1161763150] [2020-11-30 01:02:54,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/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 [2020-11-30 01:02:55,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:02:55,280 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:02:55,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 01:02:55,532 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 01:02:55,615 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-30 01:02:55,615 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 01:02:55,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 01:02:55,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:02:55 BoogieIcfgContainer [2020-11-30 01:02:55,872 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:02:55,873 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:02:55,873 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:02:55,873 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:02:55,874 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:02:51" (3/4) ... [2020-11-30 01:02:55,875 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 01:02:55,938 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f90f140f-fbea-4500-b371-cef1aa0af440/bin/uautomizer/witness.graphml [2020-11-30 01:02:55,939 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:02:55,940 INFO L168 Benchmark]: Toolchain (without parser) took 28968.35 ms. Allocated memory is still 75.5 MB. Free memory was 40.9 MB in the beginning and 51.4 MB in the end (delta: -10.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:02:55,941 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 75.5 MB. Free memory was 57.5 MB in the beginning and 57.4 MB in the end (delta: 71.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:02:55,942 INFO L168 Benchmark]: CACSL2BoogieTranslator took 458.66 ms. Allocated memory is still 75.5 MB. Free memory was 40.7 MB in the beginning and 56.6 MB in the end (delta: -15.9 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:55,942 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.63 ms. Allocated memory is still 75.5 MB. Free memory was 56.6 MB in the beginning and 54.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:02:55,943 INFO L168 Benchmark]: Boogie Preprocessor took 68.67 ms. Allocated memory is still 75.5 MB. Free memory was 54.5 MB in the beginning and 52.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:55,943 INFO L168 Benchmark]: RCFGBuilder took 24114.81 ms. Allocated memory is still 75.5 MB. Free memory was 52.4 MB in the beginning and 47.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:55,944 INFO L168 Benchmark]: TraceAbstraction took 4205.21 ms. Allocated memory is still 75.5 MB. Free memory was 47.2 MB in the beginning and 55.1 MB in the end (delta: -7.9 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:55,944 INFO L168 Benchmark]: Witness Printer took 66.00 ms. Allocated memory is still 75.5 MB. Free memory was 55.1 MB in the beginning and 51.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:02:55,957 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 75.5 MB. Free memory was 57.5 MB in the beginning and 57.4 MB in the end (delta: 71.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 458.66 ms. Allocated memory is still 75.5 MB. Free memory was 40.7 MB in the beginning and 56.6 MB in the end (delta: -15.9 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.63 ms. Allocated memory is still 75.5 MB. Free memory was 56.6 MB in the beginning and 54.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.67 ms. Allocated memory is still 75.5 MB. Free memory was 54.5 MB in the beginning and 52.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 24114.81 ms. Allocated memory is still 75.5 MB. Free memory was 52.4 MB in the beginning and 47.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4205.21 ms. Allocated memory is still 75.5 MB. Free memory was 47.2 MB in the beginning and 55.1 MB in the end (delta: -7.9 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. * Witness Printer took 66.00 ms. Allocated memory is still 75.5 MB. Free memory was 55.1 MB in the beginning and 51.4 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L34-L43] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L45] static const double zero = 0.0; VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L134] double x = 1.0 / 0.0; [L48] double hfsq, f, s, z, R, w, t1, t2, dk; [L49] __int32_t k, hx, i, j; [L50] __uint32_t lx; VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L53] ieee_double_shape_type ew_u; [L54] ew_u.value = (x) [L55] EXPR ew_u.parts.msw [L55] (hx) = ew_u.parts.msw [L56] EXPR ew_u.parts.lsw [L56] (lx) = ew_u.parts.lsw [L59] k = 0 VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L60] COND FALSE !(hx < 0x00100000) VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L73] COND TRUE hx >= 0x7ff00000 [L74] return x + x; VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L135] double res = __ieee754_log(x); [L21] __int32_t hx, lx; VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (hx) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lx) = ew_u.parts.lsw [L28] hx &= 0x7fffffff [L29] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L30] hx = 0x7ff00000 - hx [L31] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] [L138] COND TRUE !isinf_double(res) [L3] __assert_fail("0", "double_req_bl_0931.c", 3, "reach_error") VAL [Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, two54_log=18014398509481984, zero=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 53 SDtfs, 21 SDslu, 4 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 48 ConstructedInterpolants, 5 QuantifiedInterpolants, 1750 SizeOfPredicates, 7 NumberOfNonLiveVariables, 126 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...