./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 cff56ef2177d4a827b720aa6155a34e4f93cd99b ........................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 cff56ef2177d4a827b720aa6155a34e4f93cd99b ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-10-24 23:25:28,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:25:28,900 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:25:28,938 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:25:28,939 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:25:28,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:25:28,942 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:25:28,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:25:28,947 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:25:28,949 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:25:28,950 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:25:28,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:25:28,952 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:25:28,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:25:28,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:25:28,957 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:25:28,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:25:28,959 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:25:28,961 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:25:28,964 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:25:28,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:25:28,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:25:28,972 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:25:28,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:25:28,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:25:28,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:25:28,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:25:28,979 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:25:28,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:25:28,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:25:28,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:25:28,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:25:28,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:25:28,985 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:25:28,986 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:25:28,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:25:28,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:25:28,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:25:28,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:25:28,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:25:28,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:25:28,992 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 23:25:29,030 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:25:29,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:25:29,032 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:25:29,033 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:25:29,033 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:25:29,033 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:25:29,033 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:25:29,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 23:25:29,034 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:25:29,034 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:25:29,034 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:25:29,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:25:29,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:25:29,035 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:25:29,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:25:29,035 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:25:29,035 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:25:29,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:25:29,036 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:25:29,036 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:25:29,036 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:25:29,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:25:29,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:25:29,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:25:29,037 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:25:29,037 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 23:25:29,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 23:25:29,038 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:25:29,038 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:25:29,038 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cff56ef2177d4a827b720aa6155a34e4f93cd99b [2020-10-24 23:25:29,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:25:29,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:25:29,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:25:29,470 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:25:29,471 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:25:29,473 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c [2020-10-24 23:25:29,563 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a7432c91/fa093c2605034258893de06fe2929fd0/FLAG2b4973d9e [2020-10-24 23:25:30,174 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:25:30,175 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1032a.c [2020-10-24 23:25:30,182 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a7432c91/fa093c2605034258893de06fe2929fd0/FLAG2b4973d9e [2020-10-24 23:25:30,551 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a7432c91/fa093c2605034258893de06fe2929fd0 [2020-10-24 23:25:30,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:25:30,562 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:25:30,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:25:30,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:25:30,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:25:30,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:25:30" (1/1) ... [2020-10-24 23:25:30,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6351a5b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:30, skipping insertion in model container [2020-10-24 23:25:30,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:25:30" (1/1) ... [2020-10-24 23:25:30,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:25:30,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:25:30,787 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:25:30,798 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:25:30,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:25:30,846 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:25:30,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:30 WrapperNode [2020-10-24 23:25:30,847 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:25:30,848 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:25:30,849 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:25:30,849 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:25:30,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:30" (1/1) ... [2020-10-24 23:25:30,874 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:30" (1/1) ... [2020-10-24 23:25:30,900 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:25:30,902 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:25:30,902 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:25:30,902 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:25:30,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:30" (1/1) ... [2020-10-24 23:25:30,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:30" (1/1) ... [2020-10-24 23:25:30,917 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:30" (1/1) ... [2020-10-24 23:25:30,917 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:30" (1/1) ... [2020-10-24 23:25:30,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:30" (1/1) ... [2020-10-24 23:25:30,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:30" (1/1) ... [2020-10-24 23:25:30,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:30" (1/1) ... [2020-10-24 23:25:30,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:25:30,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:25:30,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:25:30,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:25:30,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 23:25:31,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 23:25:31,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:25:31,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 23:25:31,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 23:25:31,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 23:25:31,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:25:31,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:25:31,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 23:25:31,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:25:31,575 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:25:31,576 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-24 23:25:31,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:25:31 BoogieIcfgContainer [2020-10-24 23:25:31,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:25:31,580 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:25:31,580 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:25:31,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:25:31,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:25:30" (1/3) ... [2020-10-24 23:25:31,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f51ad6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:25:31, skipping insertion in model container [2020-10-24 23:25:31,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:30" (2/3) ... [2020-10-24 23:25:31,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f51ad6f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:25:31, skipping insertion in model container [2020-10-24 23:25:31,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:25:31" (3/3) ... [2020-10-24 23:25:31,589 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032a.c [2020-10-24 23:25:31,612 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:25:31,618 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:25:31,637 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:25:31,684 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:25:31,685 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:25:31,685 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:25:31,685 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:25:31,685 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:25:31,686 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:25:31,686 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:25:31,686 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:25:31,706 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-10-24 23:25:31,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 23:25:31,721 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:25:31,722 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:25:31,723 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:25:31,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:25:31,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1590452317, now seen corresponding path program 1 times [2020-10-24 23:25:31,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:25:31,744 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144901176] [2020-10-24 23:25:31,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:25:31,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:25:31,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:31,932 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144901176] [2020-10-24 23:25:31,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:25:31,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 23:25:31,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548828821] [2020-10-24 23:25:31,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:25:31,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:25:31,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:25:31,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:25:31,958 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2020-10-24 23:25:31,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:25:31,978 INFO L93 Difference]: Finished difference Result 49 states and 73 transitions. [2020-10-24 23:25:31,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:25:31,980 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-24 23:25:31,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:25:31,990 INFO L225 Difference]: With dead ends: 49 [2020-10-24 23:25:31,990 INFO L226 Difference]: Without dead ends: 22 [2020-10-24 23:25:31,994 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 [2020-10-24 23:25:32,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-24 23:25:32,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-24 23:25:32,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-24 23:25:32,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2020-10-24 23:25:32,033 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2020-10-24 23:25:32,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:25:32,033 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2020-10-24 23:25:32,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:25:32,034 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2020-10-24 23:25:32,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 23:25:32,034 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:25:32,035 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:25:32,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 23:25:32,035 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:25:32,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:25:32,036 INFO L82 PathProgramCache]: Analyzing trace with hash -744854880, now seen corresponding path program 1 times [2020-10-24 23:25:32,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:25:32,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697205350] [2020-10-24 23:25:32,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:25:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:25:32,096 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:25:32,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:25:32,162 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:25:32,208 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 23:25:32,208 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:25:32,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 23:25:32,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:25:32 BoogieIcfgContainer [2020-10-24 23:25:32,258 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:25:32,259 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:25:32,259 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:25:32,260 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:25:32,260 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:25:31" (3/4) ... [2020-10-24 23:25:32,264 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 23:25:32,265 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:25:32,271 INFO L168 Benchmark]: Toolchain (without parser) took 1709.77 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 19.4 MB in the beginning and 30.8 MB in the end (delta: -11.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:25:32,272 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 41.9 MB. Free memory was 25.1 MB in the beginning and 25.0 MB in the end (delta: 31.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:25:32,274 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.63 ms. Allocated memory is still 41.9 MB. Free memory was 18.8 MB in the beginning and 17.8 MB in the end (delta: 974.5 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:32,275 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.54 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 17.7 MB in the beginning and 34.3 MB in the end (delta: -16.6 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:32,276 INFO L168 Benchmark]: Boogie Preprocessor took 55.34 ms. Allocated memory is still 50.3 MB. Free memory was 34.3 MB in the beginning and 33.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:32,278 INFO L168 Benchmark]: RCFGBuilder took 620.23 ms. Allocated memory is still 50.3 MB. Free memory was 32.9 MB in the beginning and 27.6 MB in the end (delta: 5.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:32,279 INFO L168 Benchmark]: TraceAbstraction took 678.58 ms. Allocated memory is still 50.3 MB. Free memory was 27.2 MB in the beginning and 31.1 MB in the end (delta: -3.9 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:32,280 INFO L168 Benchmark]: Witness Printer took 5.64 ms. Allocated memory is still 50.3 MB. Free memory was 31.1 MB in the beginning and 30.8 MB in the end (delta: 240.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:25:32,299 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 41.9 MB. Free memory was 25.1 MB in the beginning and 25.0 MB in the end (delta: 31.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 283.63 ms. Allocated memory is still 41.9 MB. Free memory was 18.8 MB in the beginning and 17.8 MB in the end (delta: 974.5 kB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.54 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 17.7 MB in the beginning and 34.3 MB in the end (delta: -16.6 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.34 ms. Allocated memory is still 50.3 MB. Free memory was 34.3 MB in the beginning and 33.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 620.23 ms. Allocated memory is still 50.3 MB. Free memory was 32.9 MB in the beginning and 27.6 MB in the end (delta: 5.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 678.58 ms. Allocated memory is still 50.3 MB. Free memory was 27.2 MB in the beginning and 31.1 MB in the end (delta: -3.9 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * Witness Printer took 5.64 ms. Allocated memory is still 50.3 MB. Free memory was 31.1 MB in the beginning and 30.8 MB in the end (delta: 240.7 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 someBinaryFLOATComparisonOperation at line 81, overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L77] float x = 0.0f; [L15] __uint32_t w; [L17] int exponent_less_127; [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (x) [L22] EXPR gf_u.word [L22] (w) = gf_u.word [L25] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 [L27] COND FALSE !(exponent_less_127 < 23) [L43] COND TRUE exponent_less_127 == 128 [L45] return x + x; [L78] float res = round_float(x); [L81] EXPR res == 0.0f && __signbit_float(res) == 0 [L81] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L3] __assert_fail("0", "float_req_bl_1032a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 30 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=26occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-10-24 23:25:34,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:25:34,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:25:34,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:25:34,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:25:34,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:25:34,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:25:34,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:25:34,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:25:34,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:25:34,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:25:34,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:25:34,954 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:25:34,955 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:25:34,956 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:25:34,958 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:25:34,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:25:34,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:25:34,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:25:34,965 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:25:34,967 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:25:34,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:25:34,970 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:25:34,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:25:34,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:25:34,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:25:34,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:25:34,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:25:34,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:25:34,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:25:34,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:25:34,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:25:34,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:25:34,981 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:25:34,983 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:25:34,983 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:25:34,984 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:25:34,984 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:25:34,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:25:34,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:25:34,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:25:34,988 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 23:25:35,015 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:25:35,015 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:25:35,016 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:25:35,017 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:25:35,017 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:25:35,017 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:25:35,017 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:25:35,017 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:25:35,018 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:25:35,018 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:25:35,018 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:25:35,018 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:25:35,018 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 23:25:35,019 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 23:25:35,019 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:25:35,019 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:25:35,019 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:25:35,019 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:25:35,020 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:25:35,020 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:25:35,020 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:25:35,020 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:25:35,020 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:25:35,021 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:25:35,021 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:25:35,021 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:25:35,021 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 23:25:35,021 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 23:25:35,021 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:25:35,022 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:25:35,022 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 23:25:35,022 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cff56ef2177d4a827b720aa6155a34e4f93cd99b [2020-10-24 23:25:35,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:25:35,527 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:25:35,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:25:35,535 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:25:35,536 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:25:35,537 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1032a.c [2020-10-24 23:25:35,625 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d70435a6/a56ce76233844d9382490fb4547beaf7/FLAGa0e1e7c89 [2020-10-24 23:25:36,222 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:25:36,223 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1032a.c [2020-10-24 23:25:36,232 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d70435a6/a56ce76233844d9382490fb4547beaf7/FLAGa0e1e7c89 [2020-10-24 23:25:36,585 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d70435a6/a56ce76233844d9382490fb4547beaf7 [2020-10-24 23:25:36,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:25:36,597 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:25:36,599 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:25:36,599 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:25:36,603 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:25:36,604 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:25:36" (1/1) ... [2020-10-24 23:25:36,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@768dba54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:36, skipping insertion in model container [2020-10-24 23:25:36,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:25:36" (1/1) ... [2020-10-24 23:25:36,617 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:25:36,634 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:25:36,900 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:25:36,922 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:25:36,982 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:25:37,009 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:25:37,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:37 WrapperNode [2020-10-24 23:25:37,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:25:37,012 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:25:37,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:25:37,014 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:25:37,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:37" (1/1) ... [2020-10-24 23:25:37,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:37" (1/1) ... [2020-10-24 23:25:37,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:25:37,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:25:37,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:25:37,091 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:25:37,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:37" (1/1) ... [2020-10-24 23:25:37,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:37" (1/1) ... [2020-10-24 23:25:37,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:37" (1/1) ... [2020-10-24 23:25:37,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:37" (1/1) ... [2020-10-24 23:25:37,126 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:37" (1/1) ... [2020-10-24 23:25:37,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:37" (1/1) ... [2020-10-24 23:25:37,134 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:37" (1/1) ... [2020-10-24 23:25:37,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:25:37,142 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:25:37,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:25:37,142 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:25:37,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 23:25:37,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 23:25:37,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:25:37,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-10-24 23:25:37,225 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-24 23:25:37,225 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:25:37,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:25:37,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-10-24 23:25:37,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-24 23:25:37,226 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:25:37,680 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:25:37,681 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-10-24 23:25:37,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:25:37 BoogieIcfgContainer [2020-10-24 23:25:37,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:25:37,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:25:37,689 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:25:37,693 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:25:37,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:25:36" (1/3) ... [2020-10-24 23:25:37,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d36659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:25:37, skipping insertion in model container [2020-10-24 23:25:37,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:25:37" (2/3) ... [2020-10-24 23:25:37,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24d36659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:25:37, skipping insertion in model container [2020-10-24 23:25:37,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:25:37" (3/3) ... [2020-10-24 23:25:37,698 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1032a.c [2020-10-24 23:25:37,711 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:25:37,720 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:25:37,737 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:25:37,783 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:25:37,784 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:25:37,784 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:25:37,784 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:25:37,784 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:25:37,785 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:25:37,785 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:25:37,785 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:25:37,806 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-10-24 23:25:37,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 23:25:37,814 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:25:37,815 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:25:37,816 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:25:37,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:25:37,824 INFO L82 PathProgramCache]: Analyzing trace with hash 1590452317, now seen corresponding path program 1 times [2020-10-24 23:25:37,840 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:25:37,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [321880723] [2020-10-24 23:25:37,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 23:25:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:25:38,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 23:25:38,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:25:38,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:38,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:25:38,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:38,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [321880723] [2020-10-24 23:25:38,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:25:38,086 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 23:25:38,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21880827] [2020-10-24 23:25:38,092 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:25:38,092 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:25:38,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:25:38,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:25:38,110 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2020-10-24 23:25:38,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:25:38,131 INFO L93 Difference]: Finished difference Result 49 states and 73 transitions. [2020-10-24 23:25:38,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:25:38,133 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-24 23:25:38,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:25:38,145 INFO L225 Difference]: With dead ends: 49 [2020-10-24 23:25:38,145 INFO L226 Difference]: Without dead ends: 22 [2020-10-24 23:25:38,148 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:25:38,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-24 23:25:38,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-24 23:25:38,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-24 23:25:38,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2020-10-24 23:25:38,187 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 10 [2020-10-24 23:25:38,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:25:38,188 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2020-10-24 23:25:38,188 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:25:38,188 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2020-10-24 23:25:38,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 23:25:38,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:25:38,189 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:25:38,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 23:25:38,411 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:25:38,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:25:38,412 INFO L82 PathProgramCache]: Analyzing trace with hash -744854880, now seen corresponding path program 1 times [2020-10-24 23:25:38,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:25:38,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [300621087] [2020-10-24 23:25:38,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 23:25:38,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:25:38,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-24 23:25:38,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:25:38,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:38,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:25:38,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:38,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [300621087] [2020-10-24 23:25:38,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:25:38,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-24 23:25:38,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738688652] [2020-10-24 23:25:38,792 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 23:25:38,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:25:38,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 23:25:38,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-24 23:25:38,793 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand 8 states. [2020-10-24 23:25:38,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:25:38,945 INFO L93 Difference]: Finished difference Result 34 states and 39 transitions. [2020-10-24 23:25:38,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 23:25:38,946 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-10-24 23:25:38,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:25:38,947 INFO L225 Difference]: With dead ends: 34 [2020-10-24 23:25:38,947 INFO L226 Difference]: Without dead ends: 20 [2020-10-24 23:25:38,948 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-24 23:25:38,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-24 23:25:38,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-10-24 23:25:38,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-24 23:25:38,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-10-24 23:25:38,963 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 11 [2020-10-24 23:25:38,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:25:38,964 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-10-24 23:25:38,964 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 23:25:38,964 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-10-24 23:25:38,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-24 23:25:38,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:25:38,965 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:25:39,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 23:25:39,183 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:25:39,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:25:39,185 INFO L82 PathProgramCache]: Analyzing trace with hash 3095257, now seen corresponding path program 1 times [2020-10-24 23:25:39,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:25:39,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296919135] [2020-10-24 23:25:39,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 23:25:39,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:25:39,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-24 23:25:39,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:25:39,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:39,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:25:39,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:39,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296919135] [2020-10-24 23:25:39,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:25:39,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2020-10-24 23:25:39,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070118794] [2020-10-24 23:25:39,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-24 23:25:39,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:25:39,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-24 23:25:39,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-10-24 23:25:39,467 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 9 states. [2020-10-24 23:25:39,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:25:39,666 INFO L93 Difference]: Finished difference Result 23 states and 22 transitions. [2020-10-24 23:25:39,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 23:25:39,667 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 15 [2020-10-24 23:25:39,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:25:39,668 INFO L225 Difference]: With dead ends: 23 [2020-10-24 23:25:39,668 INFO L226 Difference]: Without dead ends: 20 [2020-10-24 23:25:39,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 19 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2020-10-24 23:25:39,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-24 23:25:39,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-10-24 23:25:39,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-24 23:25:39,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 19 transitions. [2020-10-24 23:25:39,674 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 19 transitions. Word has length 15 [2020-10-24 23:25:39,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:25:39,675 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 19 transitions. [2020-10-24 23:25:39,675 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-24 23:25:39,675 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 19 transitions. [2020-10-24 23:25:39,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-24 23:25:39,676 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:25:39,676 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:25:39,889 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 23:25:39,889 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:25:39,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:25:39,890 INFO L82 PathProgramCache]: Analyzing trace with hash -318448082, now seen corresponding path program 1 times [2020-10-24 23:25:39,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:25:39,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1786887727] [2020-10-24 23:25:39,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 23:25:40,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:25:40,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 19 conjunts are in the unsatisfiable core [2020-10-24 23:25:40,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:25:40,158 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:25:40,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:40,247 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:25:40,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:25:40,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1786887727] [2020-10-24 23:25:40,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:25:40,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 11] imperfect sequences [] total 17 [2020-10-24 23:25:40,768 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766943807] [2020-10-24 23:25:40,769 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-24 23:25:40,769 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:25:40,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-24 23:25:40,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2020-10-24 23:25:40,770 INFO L87 Difference]: Start difference. First operand 20 states and 19 transitions. Second operand 17 states. [2020-10-24 23:25:41,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:25:41,123 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2020-10-24 23:25:41,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-24 23:25:41,126 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 19 [2020-10-24 23:25:41,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:25:41,127 INFO L225 Difference]: With dead ends: 20 [2020-10-24 23:25:41,127 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 23:25:41,128 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2020-10-24 23:25:41,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 23:25:41,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 23:25:41,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 23:25:41,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 23:25:41,129 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-24 23:25:41,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:25:41,129 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 23:25:41,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-24 23:25:41,129 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 23:25:41,129 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 23:25:41,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-24 23:25:41,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 23:25:41,538 INFO L274 CegarLoopResult]: For program point L27(lines 27 48) no Hoare annotation was computed. [2020-10-24 23:25:41,538 INFO L274 CegarLoopResult]: For program point L60-1(lines 60 64) no Hoare annotation was computed. [2020-10-24 23:25:41,538 INFO L270 CegarLoopResult]: At program point L60-2(lines 60 64) the Hoare annotation is: (and (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= ULTIMATE.start_round_float_~x (_ +zero 8 24)) (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (bvadd ULTIMATE.start_round_float_~exponent_less_127~0 (_ bv127 32)) (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24)))) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24)) (= (_ +zero 8 24) |ULTIMATE.start_round_float_#res|) |ULTIMATE.start_main_#t~short15|) [2020-10-24 23:25:41,539 INFO L274 CegarLoopResult]: For program point L60-3(lines 60 64) no Hoare annotation was computed. [2020-10-24 23:25:41,539 INFO L274 CegarLoopResult]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2020-10-24 23:25:41,539 INFO L270 CegarLoopResult]: At program point L19-2(lines 19 23) the Hoare annotation is: (= ULTIMATE.start_round_float_~x (_ +zero 8 24)) [2020-10-24 23:25:41,539 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-24 23:25:41,539 INFO L274 CegarLoopResult]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2020-10-24 23:25:41,539 INFO L274 CegarLoopResult]: For program point L81-2(lines 81 84) no Hoare annotation was computed. [2020-10-24 23:25:41,539 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 23:25:41,540 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-24 23:25:41,540 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 23:25:41,540 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 23:25:41,540 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 23:25:41,540 INFO L274 CegarLoopResult]: For program point L28(lines 28 41) no Hoare annotation was computed. [2020-10-24 23:25:41,540 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 23:25:41,541 INFO L277 CegarLoopResult]: At program point L86(lines 69 87) the Hoare annotation is: true [2020-10-24 23:25:41,541 INFO L274 CegarLoopResult]: For program point L49(lines 49 53) no Hoare annotation was computed. [2020-10-24 23:25:41,541 INFO L274 CegarLoopResult]: For program point L49-1(lines 14 55) no Hoare annotation was computed. [2020-10-24 23:25:41,541 INFO L274 CegarLoopResult]: For program point L49-2(lines 49 53) no Hoare annotation was computed. [2020-10-24 23:25:41,542 INFO L270 CegarLoopResult]: At program point L66(lines 57 67) the Hoare annotation is: (and (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= ULTIMATE.start_round_float_~x (_ +zero 8 24)) (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (bvadd ULTIMATE.start_round_float_~exponent_less_127~0 (_ bv127 32)) (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24)))) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1))) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24)) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) (= (_ +zero 8 24) |ULTIMATE.start_round_float_#res|) |ULTIMATE.start_main_#t~short15|) [2020-10-24 23:25:41,542 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 23:25:41,542 INFO L270 CegarLoopResult]: At program point L54(lines 14 55) the Hoare annotation is: (and (= ULTIMATE.start_round_float_~x (_ +zero 8 24)) (exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32))) (and (= (bvadd ULTIMATE.start_round_float_~exponent_less_127~0 (_ bv127 32)) (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24)))) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (_ +zero 8 24)) (= (_ +zero 8 24) |ULTIMATE.start_round_float_#res|)) [2020-10-24 23:25:41,542 INFO L274 CegarLoopResult]: For program point L30(lines 30 32) no Hoare annotation was computed. [2020-10-24 23:25:41,543 INFO L274 CegarLoopResult]: For program point L43(lines 43 47) no Hoare annotation was computed. [2020-10-24 23:25:41,543 INFO L274 CegarLoopResult]: For program point L35(lines 35 37) no Hoare annotation was computed. [2020-10-24 23:25:41,552 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,553 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,553 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,553 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,561 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,562 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,562 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,562 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,563 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,564 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,564 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,564 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,565 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,565 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,565 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,565 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,567 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,567 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,567 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,567 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,568 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,569 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,569 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,569 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:25:41 BoogieIcfgContainer [2020-10-24 23:25:41,572 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:25:41,572 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:25:41,572 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:25:41,573 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:25:41,573 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:25:37" (3/4) ... [2020-10-24 23:25:41,577 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 23:25:41,592 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-10-24 23:25:41,592 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-10-24 23:25:41,593 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-24 23:25:41,593 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 23:25:41,627 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == ~Pluszero~LONGDOUBLE() && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result [2020-10-24 23:25:41,628 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((~Pluszero~LONGDOUBLE() == res && x == ~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && aux-res == 0.0f && __signbit_float(res) == 0-aux [2020-10-24 23:25:41,628 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((~Pluszero~LONGDOUBLE() == res && x == ~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~Pluszero~LONGDOUBLE() == x) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && \result == 0bv32) && ~Pluszero~LONGDOUBLE() == \result) && aux-res == 0.0f && __signbit_float(res) == 0-aux [2020-10-24 23:25:41,655 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 23:25:41,655 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:25:41,658 INFO L168 Benchmark]: Toolchain (without parser) took 5066.00 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 35.6 MB in the beginning and 32.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:41,659 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 41.9 MB. Free memory was 21.6 MB in the beginning and 21.5 MB in the end (delta: 40.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:25:41,660 INFO L168 Benchmark]: CACSL2BoogieTranslator took 411.80 ms. Allocated memory is still 58.7 MB. Free memory was 35.0 MB in the beginning and 37.6 MB in the end (delta: -2.5 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:41,660 INFO L168 Benchmark]: Boogie Procedure Inliner took 76.83 ms. Allocated memory is still 58.7 MB. Free memory was 37.4 MB in the beginning and 35.8 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:25:41,661 INFO L168 Benchmark]: Boogie Preprocessor took 50.48 ms. Allocated memory is still 58.7 MB. Free memory was 35.8 MB in the beginning and 34.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:41,662 INFO L168 Benchmark]: RCFGBuilder took 542.27 ms. Allocated memory is still 58.7 MB. Free memory was 34.3 MB in the beginning and 31.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:41,662 INFO L168 Benchmark]: TraceAbstraction took 3883.54 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 31.0 MB in the beginning and 36.1 MB in the end (delta: -5.1 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:41,663 INFO L168 Benchmark]: Witness Printer took 83.24 ms. Allocated memory is still 71.3 MB. Free memory was 36.1 MB in the beginning and 32.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:25:41,667 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 41.9 MB. Free memory was 21.6 MB in the beginning and 21.5 MB in the end (delta: 40.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 411.80 ms. Allocated memory is still 58.7 MB. Free memory was 35.0 MB in the beginning and 37.6 MB in the end (delta: -2.5 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 76.83 ms. Allocated memory is still 58.7 MB. Free memory was 37.4 MB in the beginning and 35.8 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.48 ms. Allocated memory is still 58.7 MB. Free memory was 35.8 MB in the beginning and 34.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 542.27 ms. Allocated memory is still 58.7 MB. Free memory was 34.3 MB in the beginning and 31.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3883.54 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 31.0 MB in the beginning and 36.1 MB in the end (delta: -5.1 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Witness Printer took 83.24 ms. Allocated memory is still 71.3 MB. Free memory was 36.1 MB in the beginning and 32.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] * 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: 60]: Loop Invariant [2020-10-24 23:25:41,677 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,678 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,678 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,678 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,679 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,679 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,679 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,679 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: (((((~Pluszero~LONGDOUBLE() == res && x == ~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == x) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result) && aux-res == 0.0f && __signbit_float(res) == 0-aux - InvariantResult [Line: 14]: Loop Invariant [2020-10-24 23:25:41,680 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,680 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,680 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,681 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,681 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,681 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,681 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,682 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: ((x == ~Pluszero~LONGDOUBLE() && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == \result - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 57]: Loop Invariant [2020-10-24 23:25:41,683 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,683 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,683 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,683 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,684 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,684 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,684 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] [2020-10-24 23:25:41,685 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_round_float_~w~0,QUANTIFIED] Derived loop invariant: (((((((~Pluszero~LONGDOUBLE() == res && x == ~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start_round_float_~w~0 : bv32 :: ~bvadd64(exponent_less_127, 127bv32) == ~bvlshr32(~bvand32(2139095040bv32, ULTIMATE.start_round_float_~w~0), 23bv32) && ~fp~LONGDOUBLE(ULTIMATE.start_round_float_~w~0[31:31], ULTIMATE.start_round_float_~w~0[30:23], ULTIMATE.start_round_float_~w~0[22:0]) == ~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~Pluszero~LONGDOUBLE() == x) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && \result == 0bv32) && ~Pluszero~LONGDOUBLE() == \result) && aux-res == 0.0f && __signbit_float(res) == 0-aux - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 62 SDtfs, 187 SDslu, 68 SDs, 0 SdLazy, 94 SolverSat, 35 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 114 GetRequests, 69 SyntacticMatches, 6 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 138 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 102 ConstructedInterpolants, 14 QuantifiedInterpolants, 9364 SizeOfPredicates, 27 NumberOfNonLiveVariables, 206 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...