./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 20ed64ec 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_0970a.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 88d3648b8ee059de01de6f913fc316c297763bb6 .................................................................................................................................................................................................................................................................................................................................................................... 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_0970a.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 88d3648b8ee059de01de6f913fc316c297763bb6 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 01:51:52,847 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 01:51:52,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 01:51:52,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 01:51:52,893 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 01:51:52,897 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 01:51:52,898 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 01:51:52,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 01:51:52,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 01:51:52,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 01:51:52,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 01:51:52,911 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 01:51:52,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 01:51:52,913 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 01:51:52,914 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 01:51:52,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 01:51:52,917 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 01:51:52,918 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 01:51:52,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 01:51:52,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 01:51:52,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 01:51:52,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 01:51:52,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 01:51:52,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 01:51:52,932 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 01:51:52,932 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 01:51:52,933 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 01:51:52,934 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 01:51:52,934 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 01:51:52,934 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 01:51:52,935 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 01:51:52,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 01:51:52,936 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 01:51:52,937 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 01:51:52,937 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 01:51:52,938 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 01:51:52,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 01:51:52,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 01:51:52,939 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 01:51:52,940 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 01:51:52,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 01:51:52,941 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 01:51:52,970 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 01:51:52,970 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 01:51:52,971 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 01:51:52,971 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 01:51:52,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 01:51:52,972 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 01:51:52,973 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 01:51:52,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 01:51:52,973 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 01:51:52,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 01:51:52,974 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 01:51:52,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 01:51:52,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 01:51:52,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 01:51:52,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 01:51:52,974 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 01:51:52,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 01:51:52,975 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 01:51:52,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 01:51:52,975 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 01:51:52,975 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 01:51:52,975 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 01:51:52,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:51:52,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 01:51:52,976 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 01:51:52,976 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 01:51:52,976 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 01:51:52,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 01:51:52,976 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 01:51:52,976 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 01:51:52,976 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88d3648b8ee059de01de6f913fc316c297763bb6 [2021-08-26 01:51:53,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 01:51:53,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 01:51:53,251 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 01:51:53,252 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 01:51:53,253 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 01:51:53,253 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2021-08-26 01:51:53,295 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c68de8ae1/850913029f054b18ad759f33b3f898d2/FLAGd94fa5bb7 [2021-08-26 01:51:53,669 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 01:51:53,670 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2021-08-26 01:51:53,684 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c68de8ae1/850913029f054b18ad759f33b3f898d2/FLAGd94fa5bb7 [2021-08-26 01:51:53,696 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c68de8ae1/850913029f054b18ad759f33b3f898d2 [2021-08-26 01:51:53,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 01:51:53,699 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 01:51:53,702 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 01:51:53,702 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 01:51:53,705 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 01:51:53,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:51:53" (1/1) ... [2021-08-26 01:51:53,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48173197 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:51:53, skipping insertion in model container [2021-08-26 01:51:53,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:51:53" (1/1) ... [2021-08-26 01:51:53,710 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 01:51:53,733 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 01:51:53,896 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c[4407,4420] [2021-08-26 01:51:53,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:51:53,933 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 01:51:53,987 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c[4407,4420] [2021-08-26 01:51:53,987 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:51:54,000 INFO L208 MainTranslator]: Completed translation [2021-08-26 01:51:54,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:51:54 WrapperNode [2021-08-26 01:51:54,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 01:51:54,002 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 01:51:54,003 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 01:51:54,003 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 01:51:54,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:51:54" (1/1) ... [2021-08-26 01:51:54,023 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:51:54" (1/1) ... [2021-08-26 01:51:54,052 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 01:51:54,053 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 01:51:54,053 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 01:51:54,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 01:51:54,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:51:54" (1/1) ... [2021-08-26 01:51:54,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:51:54" (1/1) ... [2021-08-26 01:51:54,073 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:51:54" (1/1) ... [2021-08-26 01:51:54,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:51:54" (1/1) ... [2021-08-26 01:51:54,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:51:54" (1/1) ... [2021-08-26 01:51:54,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:51:54" (1/1) ... [2021-08-26 01:51:54,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:51:54" (1/1) ... [2021-08-26 01:51:54,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 01:51:54,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 01:51:54,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 01:51:54,102 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 01:51:54,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:51:54" (1/1) ... [2021-08-26 01:51:54,108 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:51:54,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 01:51:54,122 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 01:51:54,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 01:51:54,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 01:51:54,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 01:51:54,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-08-26 01:51:54,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-26 01:51:54,173 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-08-26 01:51:54,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 01:51:54,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 01:51:54,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-26 01:51:54,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 01:51:54,558 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 01:51:54,558 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-08-26 01:51:54,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:51:54 BoogieIcfgContainer [2021-08-26 01:51:54,560 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 01:51:54,561 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 01:51:54,561 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 01:51:54,563 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 01:51:54,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 01:51:53" (1/3) ... [2021-08-26 01:51:54,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f577ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:51:54, skipping insertion in model container [2021-08-26 01:51:54,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:51:54" (2/3) ... [2021-08-26 01:51:54,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48f577ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:51:54, skipping insertion in model container [2021-08-26 01:51:54,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:51:54" (3/3) ... [2021-08-26 01:51:54,565 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970a.c [2021-08-26 01:51:54,569 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 01:51:54,569 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 01:51:54,605 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 01:51:54,610 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 01:51:54,611 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 01:51:54,623 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 49 states have (on average 1.6734693877551021) internal successors, (82), 50 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:51:54,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-26 01:51:54,626 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:51:54,626 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:51:54,627 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:51:54,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:51:54,631 INFO L82 PathProgramCache]: Analyzing trace with hash 629078660, now seen corresponding path program 1 times [2021-08-26 01:51:54,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 01:51:54,638 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929878747] [2021-08-26 01:51:54,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:51:54,639 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 01:51:54,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:51:54,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:51:54,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 01:51:54,750 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929878747] [2021-08-26 01:51:54,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929878747] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 01:51:54,750 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:51:54,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 01:51:54,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993439861] [2021-08-26 01:51:54,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 01:51:54,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 01:51:54,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 01:51:54,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:51:54,763 INFO L87 Difference]: Start difference. First operand has 51 states, 49 states have (on average 1.6734693877551021) internal successors, (82), 50 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:51:54,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:51:54,776 INFO L93 Difference]: Finished difference Result 99 states and 160 transitions. [2021-08-26 01:51:54,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 01:51:54,777 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-08-26 01:51:54,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:51:54,782 INFO L225 Difference]: With dead ends: 99 [2021-08-26 01:51:54,782 INFO L226 Difference]: Without dead ends: 47 [2021-08-26 01:51:54,784 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:51:54,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-08-26 01:51:54,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-08-26 01:51:54,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 46 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:51:54,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2021-08-26 01:51:54,806 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 62 transitions. Word has length 11 [2021-08-26 01:51:54,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:51:54,806 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 62 transitions. [2021-08-26 01:51:54,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:51:54,807 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2021-08-26 01:51:54,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-26 01:51:54,807 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:51:54,807 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:51:54,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 01:51:54,808 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:51:54,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:51:54,808 INFO L82 PathProgramCache]: Analyzing trace with hash -1648732847, now seen corresponding path program 1 times [2021-08-26 01:51:54,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 01:51:54,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719677518] [2021-08-26 01:51:54,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:51:54,809 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 01:51:54,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:51:54,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:51:54,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 01:51:54,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719677518] [2021-08-26 01:51:54,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719677518] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 01:51:54,882 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:51:54,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 01:51:54,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420907475] [2021-08-26 01:51:54,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 01:51:54,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 01:51:54,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 01:51:54,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 01:51:54,887 INFO L87 Difference]: Start difference. First operand 47 states and 62 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:51:54,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:51:54,906 INFO L93 Difference]: Finished difference Result 87 states and 116 transitions. [2021-08-26 01:51:54,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 01:51:54,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-26 01:51:54,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:51:54,908 INFO L225 Difference]: With dead ends: 87 [2021-08-26 01:51:54,909 INFO L226 Difference]: Without dead ends: 47 [2021-08-26 01:51:54,910 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 01:51:54,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-08-26 01:51:54,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-08-26 01:51:54,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.326086956521739) internal successors, (61), 46 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:51:54,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2021-08-26 01:51:54,920 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 12 [2021-08-26 01:51:54,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:51:54,920 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2021-08-26 01:51:54,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:51:54,921 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2021-08-26 01:51:54,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-26 01:51:54,922 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:51:54,922 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:51:54,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 01:51:54,922 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:51:54,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:51:54,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1229314972, now seen corresponding path program 1 times [2021-08-26 01:51:54,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 01:51:54,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486027314] [2021-08-26 01:51:54,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:51:54,927 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 01:51:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 01:51:54,954 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-26 01:51:54,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-26 01:51:54,997 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-26 01:51:54,997 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-26 01:51:54,998 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 01:51:54,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-26 01:51:55,003 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 01:51:55,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 01:51:55 BoogieIcfgContainer [2021-08-26 01:51:55,031 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 01:51:55,032 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 01:51:55,032 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 01:51:55,032 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 01:51:55,032 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:51:54" (3/4) ... [2021-08-26 01:51:55,035 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-26 01:51:55,035 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 01:51:55,037 INFO L168 Benchmark]: Toolchain (without parser) took 1336.21 ms. Allocated memory was 65.0 MB in the beginning and 86.0 MB in the end (delta: 21.0 MB). Free memory was 45.9 MB in the beginning and 66.3 MB in the end (delta: -20.4 MB). Peak memory consumption was 112.4 kB. Max. memory is 16.1 GB. [2021-08-26 01:51:55,037 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 65.0 MB. Free memory was 47.5 MB in the beginning and 47.5 MB in the end (delta: 44.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:51:55,038 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.76 ms. Allocated memory is still 65.0 MB. Free memory was 45.7 MB in the beginning and 46.2 MB in the end (delta: -500.0 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-08-26 01:51:55,038 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.99 ms. Allocated memory is still 65.0 MB. Free memory was 46.0 MB in the beginning and 43.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 01:51:55,039 INFO L168 Benchmark]: Boogie Preprocessor took 47.43 ms. Allocated memory is still 65.0 MB. Free memory was 43.8 MB in the beginning and 42.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 01:51:55,039 INFO L168 Benchmark]: RCFGBuilder took 458.75 ms. Allocated memory was 65.0 MB in the beginning and 86.0 MB in the end (delta: 21.0 MB). Free memory was 41.9 MB in the beginning and 51.6 MB in the end (delta: -9.8 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB. [2021-08-26 01:51:55,039 INFO L168 Benchmark]: TraceAbstraction took 470.04 ms. Allocated memory is still 86.0 MB. Free memory was 51.3 MB in the beginning and 66.3 MB in the end (delta: -15.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2021-08-26 01:51:55,040 INFO L168 Benchmark]: Witness Printer took 3.39 ms. Allocated memory is still 86.0 MB. Free memory is still 66.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:51:55,044 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 65.0 MB. Free memory was 47.5 MB in the beginning and 47.5 MB in the end (delta: 44.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 299.76 ms. Allocated memory is still 65.0 MB. Free memory was 45.7 MB in the beginning and 46.2 MB in the end (delta: -500.0 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.99 ms. Allocated memory is still 65.0 MB. Free memory was 46.0 MB in the beginning and 43.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.43 ms. Allocated memory is still 65.0 MB. Free memory was 43.8 MB in the beginning and 42.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 458.75 ms. Allocated memory was 65.0 MB in the beginning and 86.0 MB in the end (delta: 21.0 MB). Free memory was 41.9 MB in the beginning and 51.6 MB in the end (delta: -9.8 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 470.04 ms. Allocated memory is still 86.0 MB. Free memory was 51.3 MB in the beginning and 66.3 MB in the end (delta: -15.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. * Witness Printer took 3.39 ms. Allocated memory is still 86.0 MB. Free memory is still 66.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 176]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 147, overapproximation of bitwiseAnd at line 118, overapproximation of someBinaryArithmeticFLOAToperation at line 119. Possible FailurePath: [L14-L18] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L20] static const float zero_log = 0.0; [L100-L103] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L105] static const float zero = 0.0; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L168] float x = __VERIFIER_nondet_float(); [L170] x < 0 && isfinite_float(x) [L151] __int32_t ix; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L153] ieee_float_shape_type gf_u; [L154] gf_u.value = (x) [L155] EXPR gf_u.word [L155] (ix) = gf_u.word [L157] ix &= 0x7fffffff [L158] return (((ix) < 0x7f800000L)); VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L170] x < 0 && isfinite_float(x) VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L170] COND TRUE x < 0 && isfinite_float(x) [L108] float y, z; [L109] __int32_t i, k, hx; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L112] ieee_float_shape_type gf_u; [L113] gf_u.value = (x) [L114] EXPR gf_u.word [L114] (hx) = gf_u.word [L117] k = 0 VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L118] COND TRUE ((hx & 0x7fffffff) == 0) [L119] return -two25_log10 / zero; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L172] float res = __ieee754_log10f(x); [L147] return x != x; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L175] COND TRUE !isnan_float(res) [L176] reach_error() VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 398.5ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 7.1ms, AutomataDifference: 54.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 129 SDtfs, 0 SDslu, 57 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 23.3ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.0ms SsaConstructionTime, 90.5ms SatisfiabilityAnalysisTime, 58.9ms InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-26 01:51:55,088 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-26 01:51:56,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 01:51:56,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 01:51:56,619 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 01:51:56,620 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 01:51:56,623 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 01:51:56,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 01:51:56,628 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 01:51:56,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 01:51:56,632 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 01:51:56,633 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 01:51:56,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 01:51:56,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 01:51:56,639 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 01:51:56,640 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 01:51:56,643 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 01:51:56,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 01:51:56,644 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 01:51:56,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 01:51:56,650 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 01:51:56,651 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 01:51:56,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 01:51:56,652 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 01:51:56,653 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 01:51:56,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 01:51:56,658 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 01:51:56,659 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 01:51:56,660 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 01:51:56,660 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 01:51:56,661 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 01:51:56,661 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 01:51:56,661 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 01:51:56,662 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 01:51:56,663 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 01:51:56,664 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 01:51:56,664 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 01:51:56,665 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 01:51:56,665 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 01:51:56,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 01:51:56,666 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 01:51:56,667 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 01:51:56,670 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-26 01:51:56,699 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 01:51:56,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 01:51:56,700 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 01:51:56,700 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 01:51:56,701 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 01:51:56,702 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 01:51:56,702 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 01:51:56,702 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 01:51:56,702 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 01:51:56,702 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 01:51:56,703 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 01:51:56,703 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 01:51:56,703 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 01:51:56,704 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 01:51:56,704 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-26 01:51:56,704 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-26 01:51:56,704 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 01:51:56,704 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 01:51:56,704 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 01:51:56,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 01:51:56,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 01:51:56,705 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 01:51:56,705 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 01:51:56,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:51:56,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 01:51:56,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 01:51:56,714 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 01:51:56,714 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-26 01:51:56,714 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-26 01:51:56,714 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 01:51:56,715 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 01:51:56,715 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-26 01:51:56,715 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88d3648b8ee059de01de6f913fc316c297763bb6 [2021-08-26 01:51:56,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 01:51:56,961 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 01:51:56,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 01:51:56,964 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 01:51:56,965 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 01:51:56,966 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2021-08-26 01:51:57,008 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff7141d5b/21bf4efd16064285b24ed41f8ea6358d/FLAGff995412a [2021-08-26 01:51:57,388 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 01:51:57,389 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2021-08-26 01:51:57,401 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff7141d5b/21bf4efd16064285b24ed41f8ea6358d/FLAGff995412a [2021-08-26 01:51:57,410 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff7141d5b/21bf4efd16064285b24ed41f8ea6358d [2021-08-26 01:51:57,412 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 01:51:57,414 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 01:51:57,414 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 01:51:57,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 01:51:57,417 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 01:51:57,417 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:51:57" (1/1) ... [2021-08-26 01:51:57,418 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fe3fbda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:51:57, skipping insertion in model container [2021-08-26 01:51:57,418 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 01:51:57" (1/1) ... [2021-08-26 01:51:57,423 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 01:51:57,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 01:51:57,594 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c[4407,4420] [2021-08-26 01:51:57,641 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:51:57,654 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 01:51:57,697 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c[4407,4420] [2021-08-26 01:51:57,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 01:51:57,708 INFO L208 MainTranslator]: Completed translation [2021-08-26 01:51:57,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:51:57 WrapperNode [2021-08-26 01:51:57,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 01:51:57,710 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 01:51:57,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 01:51:57,711 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 01:51:57,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:51:57" (1/1) ... [2021-08-26 01:51:57,734 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:51:57" (1/1) ... [2021-08-26 01:51:57,765 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 01:51:57,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 01:51:57,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 01:51:57,766 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 01:51:57,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:51:57" (1/1) ... [2021-08-26 01:51:57,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:51:57" (1/1) ... [2021-08-26 01:51:57,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:51:57" (1/1) ... [2021-08-26 01:51:57,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:51:57" (1/1) ... [2021-08-26 01:51:57,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:51:57" (1/1) ... [2021-08-26 01:51:57,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:51:57" (1/1) ... [2021-08-26 01:51:57,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:51:57" (1/1) ... [2021-08-26 01:51:57,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 01:51:57,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 01:51:57,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 01:51:57,811 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 01:51:57,812 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:51:57" (1/1) ... [2021-08-26 01:51:57,818 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 01:51:57,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 01:51:57,832 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 01:51:57,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 01:51:57,870 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-26 01:51:57,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 01:51:57,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-08-26 01:51:57,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-26 01:51:57,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 01:51:57,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 01:51:57,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-08-26 01:51:57,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-26 01:51:57,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-26 01:52:18,127 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 01:52:18,128 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-08-26 01:52:18,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:52:18 BoogieIcfgContainer [2021-08-26 01:52:18,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 01:52:18,130 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 01:52:18,130 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 01:52:18,132 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 01:52:18,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 01:51:57" (1/3) ... [2021-08-26 01:52:18,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd6cf8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:52:18, skipping insertion in model container [2021-08-26 01:52:18,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 01:51:57" (2/3) ... [2021-08-26 01:52:18,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd6cf8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 01:52:18, skipping insertion in model container [2021-08-26 01:52:18,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:52:18" (3/3) ... [2021-08-26 01:52:18,134 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970a.c [2021-08-26 01:52:18,136 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 01:52:18,137 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-26 01:52:18,162 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 01:52:18,166 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 01:52:18,166 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-26 01:52:18,174 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 49 states have (on average 1.6734693877551021) internal successors, (82), 50 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:52:18,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-26 01:52:18,177 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:52:18,178 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:52:18,178 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:52:18,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:52:18,181 INFO L82 PathProgramCache]: Analyzing trace with hash 629078660, now seen corresponding path program 1 times [2021-08-26 01:52:18,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:52:18,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2014471598] [2021-08-26 01:52:18,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:52:18,192 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:52:18,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:52:18,198 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:52:18,209 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-26 01:52:18,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:52:18,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-26 01:52:18,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:52:18,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:52:18,847 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:52:18,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:52:18,945 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:52:18,945 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2014471598] [2021-08-26 01:52:18,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2014471598] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:52:18,946 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:52:18,946 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-26 01:52:18,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191018532] [2021-08-26 01:52:18,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 01:52:18,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:52:18,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 01:52:18,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:52:18,963 INFO L87 Difference]: Start difference. First operand has 51 states, 49 states have (on average 1.6734693877551021) internal successors, (82), 50 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:52:18,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:52:18,974 INFO L93 Difference]: Finished difference Result 99 states and 160 transitions. [2021-08-26 01:52:18,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 01:52:18,975 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-08-26 01:52:18,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:52:18,980 INFO L225 Difference]: With dead ends: 99 [2021-08-26 01:52:18,980 INFO L226 Difference]: Without dead ends: 47 [2021-08-26 01:52:18,982 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 01:52:18,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-08-26 01:52:19,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-08-26 01:52:19,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 46 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:52:19,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2021-08-26 01:52:19,002 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 62 transitions. Word has length 11 [2021-08-26 01:52:19,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:52:19,003 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 62 transitions. [2021-08-26 01:52:19,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:52:19,003 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2021-08-26 01:52:19,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-26 01:52:19,004 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:52:19,004 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:52:19,026 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-26 01:52:19,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:52:19,206 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:52:19,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:52:19,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1648732847, now seen corresponding path program 1 times [2021-08-26 01:52:19,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:52:19,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [687658222] [2021-08-26 01:52:19,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:52:19,208 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:52:19,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:52:19,208 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:52:19,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-26 01:52:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:52:19,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjunts are in the unsatisfiable core [2021-08-26 01:52:19,742 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:52:19,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:52:19,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:52:19,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:52:19,973 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:52:19,973 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [687658222] [2021-08-26 01:52:19,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [687658222] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:52:19,974 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:52:19,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-08-26 01:52:19,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890286981] [2021-08-26 01:52:19,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 01:52:19,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:52:19,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 01:52:19,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 01:52:19,976 INFO L87 Difference]: Start difference. First operand 47 states and 62 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:52:20,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:52:20,030 INFO L93 Difference]: Finished difference Result 87 states and 116 transitions. [2021-08-26 01:52:20,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 01:52:20,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-26 01:52:20,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:52:20,032 INFO L225 Difference]: With dead ends: 87 [2021-08-26 01:52:20,032 INFO L226 Difference]: Without dead ends: 47 [2021-08-26 01:52:20,032 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 25.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 01:52:20,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-08-26 01:52:20,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-08-26 01:52:20,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.326086956521739) internal successors, (61), 46 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:52:20,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2021-08-26 01:52:20,036 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 12 [2021-08-26 01:52:20,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:52:20,036 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2021-08-26 01:52:20,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:52:20,036 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2021-08-26 01:52:20,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-26 01:52:20,040 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:52:20,041 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:52:20,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-26 01:52:20,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:52:20,258 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:52:20,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:52:20,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1229314972, now seen corresponding path program 1 times [2021-08-26 01:52:20,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:52:20,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1990216276] [2021-08-26 01:52:20,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:52:20,259 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:52:20,259 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:52:20,259 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:52:20,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-26 01:52:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:52:20,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-26 01:52:20,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:52:21,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:52:21,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:52:22,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:52:22,536 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:52:22,537 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1990216276] [2021-08-26 01:52:22,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1990216276] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:52:22,537 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:52:22,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-08-26 01:52:22,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556507214] [2021-08-26 01:52:22,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-26 01:52:22,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:52:22,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-26 01:52:22,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-08-26 01:52:22,538 INFO L87 Difference]: Start difference. First operand 47 states and 61 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:52:24,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:52:24,024 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2021-08-26 01:52:24,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-26 01:52:24,058 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-08-26 01:52:24,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:52:24,059 INFO L225 Difference]: With dead ends: 52 [2021-08-26 01:52:24,059 INFO L226 Difference]: Without dead ends: 18 [2021-08-26 01:52:24,060 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1420.6ms TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-08-26 01:52:24,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-08-26 01:52:24,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-08-26 01:52:24,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0) internal successors, (17), 17 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:52:24,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2021-08-26 01:52:24,061 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2021-08-26 01:52:24,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:52:24,062 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2021-08-26 01:52:24,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:52:24,062 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2021-08-26 01:52:24,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-26 01:52:24,062 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 01:52:24,062 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 01:52:24,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-26 01:52:24,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:52:24,265 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 01:52:24,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 01:52:24,265 INFO L82 PathProgramCache]: Analyzing trace with hash -616191433, now seen corresponding path program 1 times [2021-08-26 01:52:24,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-26 01:52:24,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1564110003] [2021-08-26 01:52:24,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 01:52:24,266 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-26 01:52:24,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-26 01:52:24,266 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-26 01:52:24,271 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-26 01:52:24,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 01:52:24,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-26 01:52:24,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 01:52:25,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:52:25,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-26 01:52:46,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 01:52:46,972 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-26 01:52:46,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1564110003] [2021-08-26 01:52:46,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1564110003] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-26 01:52:46,973 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-26 01:52:46,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-08-26 01:52:46,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888491877] [2021-08-26 01:52:46,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-26 01:52:46,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-26 01:52:46,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-26 01:52:46,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-08-26 01:52:46,974 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand has 10 states, 10 states have (on average 3.3) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:52:48,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 01:52:48,746 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2021-08-26 01:52:48,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 01:52:48,746 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-08-26 01:52:48,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 01:52:48,747 INFO L225 Difference]: With dead ends: 18 [2021-08-26 01:52:48,747 INFO L226 Difference]: Without dead ends: 0 [2021-08-26 01:52:48,747 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3938.6ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-08-26 01:52:48,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-26 01:52:48,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-26 01:52:48,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:52:48,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-26 01:52:48,748 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2021-08-26 01:52:48,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 01:52:48,748 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-26 01:52:48,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 01:52:48,749 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-26 01:52:48,749 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-26 01:52:48,750 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 01:52:48,772 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-26 01:52:48,956 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-26 01:52:48,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-26 01:52:48,961 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:52:48,979 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:52:48,982 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:52:48,983 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:52:48,984 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:52:48,985 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:52:48,986 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:52:48,989 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:52:48,990 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:52:48,998 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:52:49,000 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:52:49,000 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 01:52:49,875 INFO L857 garLoopResultBuilder]: For program point L93(lines 93 96) no Hoare annotation was computed. [2021-08-26 01:52:49,876 INFO L857 garLoopResultBuilder]: For program point L60(lines 60 65) no Hoare annotation was computed. [2021-08-26 01:52:49,876 INFO L857 garLoopResultBuilder]: For program point L118(lines 118 119) no Hoare annotation was computed. [2021-08-26 01:52:49,876 INFO L857 garLoopResultBuilder]: For program point L85(lines 85 97) no Hoare annotation was computed. [2021-08-26 01:52:49,876 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-08-26 01:52:49,877 INFO L853 garLoopResultBuilder]: At program point L143(lines 107 144) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (fp.lt (fp ((_ extract 31 31) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_log10f_~hx~0)) ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (exists ((ULTIMATE.start___ieee754_log10f_~x (_ FloatingPoint 8 24))) (= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven ULTIMATE.start___ieee754_log10f_~x ULTIMATE.start___ieee754_log10f_~x) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|)) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start___ieee754_log10f_~x ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven)) [2021-08-26 01:52:49,877 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 127 131) no Hoare annotation was computed. [2021-08-26 01:52:49,877 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-26 01:52:49,877 INFO L853 garLoopResultBuilder]: At program point L127-2(lines 127 131) the Hoare annotation is: false [2021-08-26 01:52:49,877 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-26 01:52:49,877 INFO L857 garLoopResultBuilder]: For program point L152-1(lines 152 156) no Hoare annotation was computed. [2021-08-26 01:52:49,878 INFO L853 garLoopResultBuilder]: At program point L152-2(lines 152 156) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short17| (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven)) [2021-08-26 01:52:49,878 INFO L857 garLoopResultBuilder]: For program point L152-3(lines 152 156) no Hoare annotation was computed. [2021-08-26 01:52:49,878 INFO L857 garLoopResultBuilder]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2021-08-26 01:52:49,878 INFO L853 garLoopResultBuilder]: At program point L111-2(lines 111 115) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start___ieee754_log10f_~x ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven)) [2021-08-26 01:52:49,878 INFO L857 garLoopResultBuilder]: For program point L111-3(lines 111 115) no Hoare annotation was computed. [2021-08-26 01:52:49,878 INFO L857 garLoopResultBuilder]: For program point L37(lines 37 38) no Hoare annotation was computed. [2021-08-26 01:52:49,878 INFO L857 garLoopResultBuilder]: For program point L120(lines 120 121) no Hoare annotation was computed. [2021-08-26 01:52:49,878 INFO L857 garLoopResultBuilder]: For program point L87(lines 87 91) no Hoare annotation was computed. [2021-08-26 01:52:49,878 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-08-26 01:52:49,879 INFO L857 garLoopResultBuilder]: For program point L170-2(lines 170 179) no Hoare annotation was computed. [2021-08-26 01:52:49,879 INFO L857 garLoopResultBuilder]: For program point L137-1(lines 137 141) no Hoare annotation was computed. [2021-08-26 01:52:49,879 INFO L853 garLoopResultBuilder]: At program point L137-2(lines 137 141) the Hoare annotation is: false [2021-08-26 01:52:49,879 INFO L857 garLoopResultBuilder]: For program point L137-3(lines 137 141) no Hoare annotation was computed. [2021-08-26 01:52:49,879 INFO L857 garLoopResultBuilder]: For program point L170-4(lines 170 179) no Hoare annotation was computed. [2021-08-26 01:52:49,879 INFO L853 garLoopResultBuilder]: At program point L96(lines 22 98) the Hoare annotation is: false [2021-08-26 01:52:49,879 INFO L857 garLoopResultBuilder]: For program point L39(lines 39 47) no Hoare annotation was computed. [2021-08-26 01:52:49,879 INFO L857 garLoopResultBuilder]: For program point L39-1(lines 39 47) no Hoare annotation was computed. [2021-08-26 01:52:49,880 INFO L857 garLoopResultBuilder]: For program point L122(lines 122 123) no Hoare annotation was computed. [2021-08-26 01:52:49,880 INFO L853 garLoopResultBuilder]: At program point L147(line 147) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (fp.lt (fp ((_ extract 31 31) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_log10f_~hx~0)) ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (exists ((ULTIMATE.start___ieee754_log10f_~x (_ FloatingPoint 8 24))) (= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven ULTIMATE.start___ieee754_log10f_~x ULTIMATE.start___ieee754_log10f_~x) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|)) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start___ieee754_log10f_~x ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)) [2021-08-26 01:52:49,880 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-26 01:52:49,880 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 176) no Hoare annotation was computed. [2021-08-26 01:52:49,880 INFO L860 garLoopResultBuilder]: At program point L181(lines 161 182) the Hoare annotation is: true [2021-08-26 01:52:49,880 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 34) no Hoare annotation was computed. [2021-08-26 01:52:49,880 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-26 01:52:49,881 INFO L857 garLoopResultBuilder]: For program point L124(lines 124 132) no Hoare annotation was computed. [2021-08-26 01:52:49,881 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 124 132) no Hoare annotation was computed. [2021-08-26 01:52:49,881 INFO L857 garLoopResultBuilder]: For program point L58(lines 58 74) no Hoare annotation was computed. [2021-08-26 01:52:49,881 INFO L857 garLoopResultBuilder]: For program point L42-1(lines 42 46) no Hoare annotation was computed. [2021-08-26 01:52:49,881 INFO L853 garLoopResultBuilder]: At program point L42-2(lines 42 46) the Hoare annotation is: false [2021-08-26 01:52:49,881 INFO L853 garLoopResultBuilder]: At program point L158(lines 150 159) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short17| (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven)) [2021-08-26 01:52:49,881 INFO L857 garLoopResultBuilder]: For program point L59(lines 59 66) no Hoare annotation was computed. [2021-08-26 01:52:49,881 INFO L857 garLoopResultBuilder]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2021-08-26 01:52:49,882 INFO L853 garLoopResultBuilder]: At program point L26-2(lines 26 30) the Hoare annotation is: false [2021-08-26 01:52:49,882 INFO L857 garLoopResultBuilder]: For program point L26-3(lines 26 30) no Hoare annotation was computed. [2021-08-26 01:52:49,882 INFO L857 garLoopResultBuilder]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2021-08-26 01:52:49,882 INFO L853 garLoopResultBuilder]: At program point L51-2(lines 51 55) the Hoare annotation is: false [2021-08-26 01:52:49,882 INFO L857 garLoopResultBuilder]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2021-08-26 01:52:49,882 INFO L857 garLoopResultBuilder]: For program point L175(lines 175 178) no Hoare annotation was computed. [2021-08-26 01:52:49,882 INFO L857 garLoopResultBuilder]: For program point L68(lines 68 73) no Hoare annotation was computed. [2021-08-26 01:52:49,882 INFO L857 garLoopResultBuilder]: For program point L35(lines 35 36) no Hoare annotation was computed. [2021-08-26 01:52:49,885 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 01:52:49,889 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,891 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,894 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,894 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,895 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,895 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,895 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,895 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,896 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,896 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,896 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,897 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,897 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,897 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,897 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-08-26 01:52:49,897 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-08-26 01:52:49,897 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,897 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,897 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,898 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,898 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,898 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,898 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,898 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-08-26 01:52:49,898 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-08-26 01:52:49,899 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,899 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,899 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,899 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,899 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,900 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,900 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,900 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,900 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,900 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,901 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,901 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-08-26 01:52:49,901 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-08-26 01:52:49,901 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,901 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,901 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,902 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,902 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,902 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,902 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,902 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-08-26 01:52:49,902 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-08-26 01:52:49,902 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,902 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,903 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 01:52:49 BoogieIcfgContainer [2021-08-26 01:52:49,903 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 01:52:49,904 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 01:52:49,904 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 01:52:49,904 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 01:52:49,904 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 01:52:18" (3/4) ... [2021-08-26 01:52:49,906 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-26 01:52:49,915 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2021-08-26 01:52:49,915 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-08-26 01:52:49,915 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 01:52:49,916 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 01:52:49,930 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((aux-x < 0 && isfinite_float(x)-aux && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-08-26 01:52:49,931 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((aux-x < 0 && isfinite_float(x)-aux && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-08-26 01:52:49,931 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-08-26 01:52:49,931 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && (\exists ULTIMATE.start___ieee754_log10f_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_log10f_~x, ULTIMATE.start___ieee754_log10f_~x), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result)) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-08-26 01:52:49,931 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && (\exists ULTIMATE.start___ieee754_log10f_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_log10f_~x, ULTIMATE.start___ieee754_log10f_~x), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result)) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result [2021-08-26 01:52:49,950 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 01:52:49,950 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 01:52:49,952 INFO L168 Benchmark]: Toolchain (without parser) took 52537.46 ms. Allocated memory was 75.5 MB in the beginning and 94.4 MB in the end (delta: 18.9 MB). Free memory was 60.3 MB in the beginning and 35.8 MB in the end (delta: 24.4 MB). Peak memory consumption was 42.3 MB. Max. memory is 16.1 GB. [2021-08-26 01:52:49,952 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 75.5 MB. Free memory is still 58.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 01:52:49,952 INFO L168 Benchmark]: CACSL2BoogieTranslator took 295.13 ms. Allocated memory is still 75.5 MB. Free memory was 60.0 MB in the beginning and 56.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. [2021-08-26 01:52:49,952 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.60 ms. Allocated memory is still 75.5 MB. Free memory was 56.1 MB in the beginning and 53.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 01:52:49,953 INFO L168 Benchmark]: Boogie Preprocessor took 43.53 ms. Allocated memory is still 75.5 MB. Free memory was 53.6 MB in the beginning and 51.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 01:52:49,953 INFO L168 Benchmark]: RCFGBuilder took 20318.54 ms. Allocated memory is still 75.5 MB. Free memory was 51.5 MB in the beginning and 45.4 MB in the end (delta: 6.1 MB). Peak memory consumption was 21.2 MB. Max. memory is 16.1 GB. [2021-08-26 01:52:49,953 INFO L168 Benchmark]: TraceAbstraction took 31773.43 ms. Allocated memory was 75.5 MB in the beginning and 94.4 MB in the end (delta: 18.9 MB). Free memory was 44.6 MB in the beginning and 41.3 MB in the end (delta: 3.3 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. [2021-08-26 01:52:49,953 INFO L168 Benchmark]: Witness Printer took 46.70 ms. Allocated memory is still 94.4 MB. Free memory was 41.3 MB in the beginning and 35.8 MB in the end (delta: 5.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-26 01:52:49,954 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 75.5 MB. Free memory is still 58.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 295.13 ms. Allocated memory is still 75.5 MB. Free memory was 60.0 MB in the beginning and 56.1 MB in the end (delta: 3.9 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.60 ms. Allocated memory is still 75.5 MB. Free memory was 56.1 MB in the beginning and 53.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.53 ms. Allocated memory is still 75.5 MB. Free memory was 53.6 MB in the beginning and 51.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 20318.54 ms. Allocated memory is still 75.5 MB. Free memory was 51.5 MB in the beginning and 45.4 MB in the end (delta: 6.1 MB). Peak memory consumption was 21.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 31773.43 ms. Allocated memory was 75.5 MB in the beginning and 94.4 MB in the end (delta: 18.9 MB). Free memory was 44.6 MB in the beginning and 41.3 MB in the end (delta: 3.3 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. * Witness Printer took 46.70 ms. Allocated memory is still 94.4 MB. Free memory was 41.3 MB in the beginning and 35.8 MB in the end (delta: 5.5 MB). Peak memory consumption was 4.2 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[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 176]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 31724.1ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 10.4ms, AutomataDifference: 3383.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 918.1ms, InitialAbstractionConstructionTime: 5.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 152 SDtfs, 46 SDslu, 126 SDs, 0 SdLazy, 34 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1546.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 5385.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 17.3ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 12 LocationsWithAnnotation, 12 PreInvPairs, 18 NumberOfFragments, 153 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 43.7ms HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 867.8ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 64.1ms SsaConstructionTime, 1763.9ms SatisfiabilityAnalysisTime, 24438.7ms InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 104 ConstructedInterpolants, 30 QuantifiedInterpolants, 636 SizeOfPredicates, 17 NumberOfNonLiveVariables, 275 ConjunctsInSsa, 20 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 152]: Loop Invariant [2021-08-26 01:52:49,964 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,964 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,964 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,964 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((aux-x < 0 && isfinite_float(x)-aux && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 161]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 111]: Loop Invariant [2021-08-26 01:52:49,965 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,965 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,966 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,966 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,966 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,966 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 107]: Loop Invariant [2021-08-26 01:52:49,967 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,967 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,967 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,967 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,967 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-08-26 01:52:49,967 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-08-26 01:52:49,967 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,967 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,967 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,968 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,968 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,968 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,968 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,968 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-08-26 01:52:49,968 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-08-26 01:52:49,968 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,969 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,969 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && (\exists ULTIMATE.start___ieee754_log10f_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_log10f_~x, ULTIMATE.start___ieee754_log10f_~x), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result)) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 150]: Loop Invariant [2021-08-26 01:52:49,969 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,969 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,970 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,970 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((aux-x < 0 && isfinite_float(x)-aux && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 147]: Loop Invariant [2021-08-26 01:52:49,970 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,970 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,970 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,971 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,971 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-08-26 01:52:49,971 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-08-26 01:52:49,971 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,971 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,971 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,971 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,972 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,972 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,972 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,972 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-08-26 01:52:49,972 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-08-26 01:52:49,972 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-26 01:52:49,972 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-08-26 01:52:49,972 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && (\exists ULTIMATE.start___ieee754_log10f_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_log10f_~x, ULTIMATE.start___ieee754_log10f_~x), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result)) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result RESULT: Ultimate proved your program to be correct! [2021-08-26 01:52:50,135 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...