./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/Rump_float.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf 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-benchs/Rump_float.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 14bbb74942280ceabf9fcd57c23c432d4c6462f0 ....................................................................................................................................................................................................................................... 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-benchs/Rump_float.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 14bbb74942280ceabf9fcd57c23c432d4c6462f0 .............................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 06:41:47,047 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 06:41:47,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 06:41:47,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 06:41:47,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 06:41:47,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 06:41:47,079 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 06:41:47,080 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 06:41:47,082 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 06:41:47,082 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 06:41:47,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 06:41:47,084 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 06:41:47,084 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 06:41:47,085 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 06:41:47,086 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 06:41:47,087 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 06:41:47,087 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 06:41:47,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 06:41:47,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 06:41:47,090 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 06:41:47,091 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 06:41:47,092 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 06:41:47,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 06:41:47,093 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 06:41:47,095 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 06:41:47,095 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 06:41:47,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 06:41:47,096 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 06:41:47,097 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 06:41:47,097 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 06:41:47,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 06:41:47,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 06:41:47,098 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 06:41:47,099 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 06:41:47,100 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 06:41:47,100 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 06:41:47,100 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 06:41:47,101 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 06:41:47,101 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 06:41:47,101 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 06:41:47,102 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 06:41:47,103 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 06:41:47,117 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 06:41:47,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 06:41:47,118 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 06:41:47,118 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 06:41:47,119 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 06:41:47,119 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 06:41:47,119 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 06:41:47,119 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 06:41:47,120 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 06:41:47,120 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 06:41:47,120 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 06:41:47,120 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 06:41:47,120 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 06:41:47,120 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 06:41:47,120 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 06:41:47,121 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 06:41:47,121 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 06:41:47,121 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 06:41:47,121 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 06:41:47,121 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 06:41:47,121 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 06:41:47,122 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 06:41:47,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:41:47,122 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 06:41:47,122 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 06:41:47,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 06:41:47,123 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 06:41:47,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 06:41:47,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 06:41:47,123 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 06:41:47,123 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14bbb74942280ceabf9fcd57c23c432d4c6462f0 [2021-08-29 06:41:47,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 06:41:47,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 06:41:47,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 06:41:47,364 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 06:41:47,364 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 06:41:47,365 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/Rump_float.c [2021-08-29 06:41:47,411 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9375f7d3/00dcc3a957f7463db172e294b872f42d/FLAGe6b7c2ada [2021-08-29 06:41:47,785 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 06:41:47,785 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/Rump_float.c [2021-08-29 06:41:47,789 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9375f7d3/00dcc3a957f7463db172e294b872f42d/FLAGe6b7c2ada [2021-08-29 06:41:47,798 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9375f7d3/00dcc3a957f7463db172e294b872f42d [2021-08-29 06:41:47,800 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 06:41:47,801 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 06:41:47,801 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 06:41:47,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 06:41:47,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 06:41:47,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:41:47" (1/1) ... [2021-08-29 06:41:47,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44b7023 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:47, skipping insertion in model container [2021-08-29 06:41:47,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:41:47" (1/1) ... [2021-08-29 06:41:47,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 06:41:47,817 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 06:41:47,893 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-benchs/Rump_float.c[338,351] [2021-08-29 06:41:47,908 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:41:47,913 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 06:41:47,921 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-benchs/Rump_float.c[338,351] [2021-08-29 06:41:47,927 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:41:47,935 INFO L208 MainTranslator]: Completed translation [2021-08-29 06:41:47,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:47 WrapperNode [2021-08-29 06:41:47,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 06:41:47,936 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 06:41:47,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 06:41:47,937 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 06:41:47,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:47" (1/1) ... [2021-08-29 06:41:47,952 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:47" (1/1) ... [2021-08-29 06:41:47,978 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 06:41:47,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 06:41:47,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 06:41:47,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 06:41:47,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:47" (1/1) ... [2021-08-29 06:41:47,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:47" (1/1) ... [2021-08-29 06:41:47,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:47" (1/1) ... [2021-08-29 06:41:47,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:47" (1/1) ... [2021-08-29 06:41:48,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:47" (1/1) ... [2021-08-29 06:41:48,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:47" (1/1) ... [2021-08-29 06:41:48,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:47" (1/1) ... [2021-08-29 06:41:48,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 06:41:48,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 06:41:48,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 06:41:48,014 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 06:41:48,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:47" (1/1) ... [2021-08-29 06:41:48,019 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:41:48,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 06:41:48,040 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) [2021-08-29 06:41:48,041 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 [2021-08-29 06:41:48,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 06:41:48,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 06:41:48,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 06:41:48,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 06:41:48,153 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 06:41:48,153 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-08-29 06:41:48,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:41:48 BoogieIcfgContainer [2021-08-29 06:41:48,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 06:41:48,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 06:41:48,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 06:41:48,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 06:41:48,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:41:47" (1/3) ... [2021-08-29 06:41:48,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b294e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:41:48, skipping insertion in model container [2021-08-29 06:41:48,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:47" (2/3) ... [2021-08-29 06:41:48,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b294e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:41:48, skipping insertion in model container [2021-08-29 06:41:48,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:41:48" (3/3) ... [2021-08-29 06:41:48,160 INFO L111 eAbstractionObserver]: Analyzing ICFG Rump_float.c [2021-08-29 06:41:48,163 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 06:41:48,164 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 06:41:48,192 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 06:41:48,196 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 [2021-08-29 06:41:48,196 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 06:41:48,205 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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) [2021-08-29 06:41:48,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-29 06:41:48,208 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 06:41:48,208 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-29 06:41:48,209 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 06:41:48,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 06:41:48,212 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-08-29 06:41:48,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 06:41:48,218 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694613402] [2021-08-29 06:41:48,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:41:48,219 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 06:41:48,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 06:41:48,279 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 06:41:48,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 06:41:48,307 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 06:41:48,308 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 06:41:48,309 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 06:41:48,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 06:41:48,315 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 06:41:48,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 06:41:48 BoogieIcfgContainer [2021-08-29 06:41:48,326 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 06:41:48,326 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 06:41:48,326 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 06:41:48,327 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 06:41:48,327 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:41:48" (3/4) ... [2021-08-29 06:41:48,329 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-29 06:41:48,329 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 06:41:48,330 INFO L158 Benchmark]: Toolchain (without parser) took 529.40ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 48.9MB in the beginning and 69.3MB in the end (delta: -20.4MB). Peak memory consumption was 373.9kB. Max. memory is 16.1GB. [2021-08-29 06:41:48,331 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 67.1MB. Free memory was 50.0MB in the beginning and 50.0MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:41:48,331 INFO L158 Benchmark]: CACSL2BoogieTranslator took 134.33ms. Allocated memory is still 67.1MB. Free memory was 48.8MB in the beginning and 39.0MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-29 06:41:48,331 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.82ms. Allocated memory is still 67.1MB. Free memory was 39.0MB in the beginning and 51.6MB in the end (delta: -12.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-29 06:41:48,332 INFO L158 Benchmark]: Boogie Preprocessor took 34.15ms. Allocated memory is still 67.1MB. Free memory was 51.6MB in the beginning and 50.6MB in the end (delta: 973.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:41:48,332 INFO L158 Benchmark]: RCFGBuilder took 141.19ms. Allocated memory is still 67.1MB. Free memory was 50.6MB in the beginning and 42.5MB in the end (delta: 8.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-29 06:41:48,333 INFO L158 Benchmark]: TraceAbstraction took 170.14ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 42.1MB in the beginning and 69.3MB in the end (delta: -27.2MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2021-08-29 06:41:48,333 INFO L158 Benchmark]: Witness Printer took 2.91ms. Allocated memory is still 88.1MB. Free memory is still 69.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:41:48,335 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 67.1MB. Free memory was 50.0MB in the beginning and 50.0MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 134.33ms. Allocated memory is still 67.1MB. Free memory was 48.8MB in the beginning and 39.0MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.82ms. Allocated memory is still 67.1MB. Free memory was 39.0MB in the beginning and 51.6MB in the end (delta: -12.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.15ms. Allocated memory is still 67.1MB. Free memory was 51.6MB in the beginning and 50.6MB in the end (delta: 973.3kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 141.19ms. Allocated memory is still 67.1MB. Free memory was 50.6MB in the beginning and 42.5MB in the end (delta: 8.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 170.14ms. Allocated memory was 67.1MB in the beginning and 88.1MB in the end (delta: 21.0MB). Free memory was 42.1MB in the beginning and 69.3MB in the end (delta: -27.2MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * Witness Printer took 2.91ms. Allocated memory is still 88.1MB. Free memory is still 69.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 6]: 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 15, overapproximation of someBinaryArithmeticFLOAToperation at line 13. Possible FailurePath: [L10] float x,y,r; [L11] x = 77617.f [L12] y = 33096.f [L13] r = 333.75f * y*y*y*y*y*y + x*x * (11.0f * x*x*y*y - y*y*y*y*y*y - 121.0f * y*y*y*y - 2.0f) + 5.5f * y*y*y*y*y*y*y*y + x / (2.f * y) [L6] COND TRUE !(cond) [L6] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 123.65ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 5.24ms, AutomataDifference: 0.00ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 5.82ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 3.61ms SsaConstructionTime, 22.58ms SatisfiabilityAnalysisTime, 0.00ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2021-08-29 06:41:48,362 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-wip.dd.seqcomp-5fbdf5b [2021-08-29 06:41:49,851 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 06:41:49,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 06:41:49,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 06:41:49,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 06:41:49,886 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 06:41:49,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 06:41:49,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 06:41:49,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 06:41:49,897 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 06:41:49,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 06:41:49,907 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 06:41:49,908 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 06:41:49,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 06:41:49,911 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 06:41:49,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 06:41:49,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 06:41:49,915 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 06:41:49,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 06:41:49,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 06:41:49,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 06:41:49,923 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 06:41:49,925 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 06:41:49,925 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 06:41:49,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 06:41:49,930 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 06:41:49,931 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 06:41:49,932 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 06:41:49,932 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 06:41:49,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 06:41:49,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 06:41:49,934 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 06:41:49,935 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 06:41:49,936 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 06:41:49,936 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 06:41:49,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 06:41:49,937 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 06:41:49,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 06:41:49,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 06:41:49,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 06:41:49,939 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 06:41:49,944 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-29 06:41:49,973 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 06:41:49,974 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 06:41:49,974 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 06:41:49,975 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 06:41:49,976 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 06:41:49,976 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 06:41:49,976 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 06:41:49,977 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 06:41:49,977 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 06:41:49,977 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 06:41:49,978 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 06:41:49,978 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 06:41:49,978 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 06:41:49,978 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 06:41:49,978 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-29 06:41:49,979 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-29 06:41:49,979 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 06:41:49,979 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 06:41:49,979 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 06:41:49,979 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 06:41:49,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 06:41:49,980 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 06:41:49,980 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 06:41:49,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:41:49,980 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 06:41:49,980 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 06:41:49,981 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 06:41:49,981 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-29 06:41:49,981 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-29 06:41:49,981 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 06:41:49,981 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 06:41:49,981 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-29 06:41:49,982 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14bbb74942280ceabf9fcd57c23c432d4c6462f0 [2021-08-29 06:41:50,249 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 06:41:50,270 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 06:41:50,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 06:41:50,272 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 06:41:50,273 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 06:41:50,274 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/Rump_float.c [2021-08-29 06:41:50,320 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2980e71c/2af67bcbca9c45ac967e7c3306821a2f/FLAGf4fd1f765 [2021-08-29 06:41:50,647 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 06:41:50,647 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/Rump_float.c [2021-08-29 06:41:50,651 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2980e71c/2af67bcbca9c45ac967e7c3306821a2f/FLAGf4fd1f765 [2021-08-29 06:41:50,660 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2980e71c/2af67bcbca9c45ac967e7c3306821a2f [2021-08-29 06:41:50,662 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 06:41:50,663 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 06:41:50,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 06:41:50,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 06:41:50,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 06:41:50,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:41:50" (1/1) ... [2021-08-29 06:41:50,669 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7179f820 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:50, skipping insertion in model container [2021-08-29 06:41:50,669 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 06:41:50" (1/1) ... [2021-08-29 06:41:50,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 06:41:50,684 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 06:41:50,795 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-benchs/Rump_float.c[338,351] [2021-08-29 06:41:50,809 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:41:50,822 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 06:41:50,832 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-benchs/Rump_float.c[338,351] [2021-08-29 06:41:50,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 06:41:50,891 INFO L208 MainTranslator]: Completed translation [2021-08-29 06:41:50,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:50 WrapperNode [2021-08-29 06:41:50,892 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 06:41:50,893 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 06:41:50,893 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 06:41:50,893 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 06:41:50,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:50" (1/1) ... [2021-08-29 06:41:50,910 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:50" (1/1) ... [2021-08-29 06:41:50,925 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 06:41:50,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 06:41:50,926 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 06:41:50,926 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 06:41:50,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:50" (1/1) ... [2021-08-29 06:41:50,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:50" (1/1) ... [2021-08-29 06:41:50,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:50" (1/1) ... [2021-08-29 06:41:50,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:50" (1/1) ... [2021-08-29 06:41:50,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:50" (1/1) ... [2021-08-29 06:41:50,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:50" (1/1) ... [2021-08-29 06:41:50,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:50" (1/1) ... [2021-08-29 06:41:50,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 06:41:50,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 06:41:50,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 06:41:50,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 06:41:50,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:50" (1/1) ... [2021-08-29 06:41:50,963 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 06:41:50,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 06:41:50,982 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) [2021-08-29 06:41:51,007 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 [2021-08-29 06:41:51,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 06:41:51,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 06:41:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-29 06:41:51,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 06:41:51,163 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 06:41:51,164 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-08-29 06:41:51,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:41:51 BoogieIcfgContainer [2021-08-29 06:41:51,165 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 06:41:51,166 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 06:41:51,167 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 06:41:51,169 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 06:41:51,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 06:41:50" (1/3) ... [2021-08-29 06:41:51,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc9da42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:41:51, skipping insertion in model container [2021-08-29 06:41:51,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 06:41:50" (2/3) ... [2021-08-29 06:41:51,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc9da42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 06:41:51, skipping insertion in model container [2021-08-29 06:41:51,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:41:51" (3/3) ... [2021-08-29 06:41:51,174 INFO L111 eAbstractionObserver]: Analyzing ICFG Rump_float.c [2021-08-29 06:41:51,178 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 06:41:51,178 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 06:41:51,215 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 06:41:51,221 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 [2021-08-29 06:41:51,222 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 06:41:51,231 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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) [2021-08-29 06:41:51,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-29 06:41:51,237 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 06:41:51,237 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-29 06:41:51,238 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 06:41:51,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 06:41:51,242 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-08-29 06:41:51,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 06:41:51,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [722502411] [2021-08-29 06:41:51,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 06:41:51,252 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 06:41:51,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 06:41:51,254 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) [2021-08-29 06:41:51,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-29 06:41:52,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 06:41:52,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-29 06:41:52,645 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 06:41:52,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:41:52,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 06:41:59,094 WARN L838 $PredicateComparison]: unable to prove that (fp.geq (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode 77617.0)) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode 2.0)) (.cse0 ((_ to_fp 8 24) c_currentRoundingMode 33096.0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1335.0 4.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse1 .cse1) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 11.0) .cse1) .cse1) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 121.0) .cse0) .cse0) .cse0) .cse0)) .cse2))) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 11.0 2.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.div c_currentRoundingMode .cse1 (fp.mul c_currentRoundingMode .cse2 .cse0)))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) is different from false [2021-08-29 06:42:01,199 WARN L860 $PredicateComparison]: unable to prove that (fp.geq (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode 77617.0)) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode 2.0)) (.cse0 ((_ to_fp 8 24) c_currentRoundingMode 33096.0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1335.0 4.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse1 .cse1) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 11.0) .cse1) .cse1) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 121.0) .cse0) .cse0) .cse0) .cse0)) .cse2))) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 11.0 2.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.div c_currentRoundingMode .cse1 (fp.mul c_currentRoundingMode .cse2 .cse0)))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) is different from true [2021-08-29 06:42:01,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 06:42:01,200 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 06:42:01,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [722502411] [2021-08-29 06:42:01,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [722502411] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 06:42:01,201 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 06:42:01,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-08-29 06:42:01,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74588368] [2021-08-29 06:42:01,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-29 06:42:01,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 06:42:01,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-29 06:42:01,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=12, Unknown=2, NotChecked=6, Total=30 [2021-08-29 06:42:01,226 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 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) [2021-08-29 06:42:03,381 WARN L860 $PredicateComparison]: unable to prove that (and (fp.geq (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode 77617.0)) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode 2.0)) (.cse0 ((_ to_fp 8 24) c_currentRoundingMode 33096.0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1335.0 4.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse1 .cse1) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 11.0) .cse1) .cse1) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 121.0) .cse0) .cse0) .cse0) .cse0)) .cse2))) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 11.0 2.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.div c_currentRoundingMode .cse1 (fp.mul c_currentRoundingMode .cse2 .cse0)))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-08-29 06:42:03,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 06:42:03,434 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-08-29 06:42:03,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-29 06:42:03,436 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 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 4 [2021-08-29 06:42:03,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 06:42:03,439 INFO L225 Difference]: With dead ends: 13 [2021-08-29 06:42:03,439 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 06:42:03,441 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6332.08ms TimeCoverageRelationStatistics Valid=12, Invalid=13, Unknown=3, NotChecked=14, Total=42 [2021-08-29 06:42:03,443 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 4 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 75.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.48ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 78.83ms IncrementalHoareTripleChecker+Time [2021-08-29 06:42:03,444 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 0 Invalid, 16 Unknown, 0 Unchecked, 0.48ms Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 5 Unchecked, 78.83ms Time] [2021-08-29 06:42:03,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 06:42:03,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 06:42:03,457 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) [2021-08-29 06:42:03,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 06:42:03,458 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-08-29 06:42:03,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 06:42:03,459 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 06:42:03,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 5 states have internal predecessors, (7), 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) [2021-08-29 06:42:03,459 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 06:42:03,460 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 06:42:03,462 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 06:42:03,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-08-29 06:42:03,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 06:42:03,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 06:42:03,671 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 06:42:03,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 06:42:03,715 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 06:42:03,715 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 06:42:03,715 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 06:42:03,715 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 06:42:03,716 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2021-08-29 06:42:03,716 INFO L854 garLoopResultBuilder]: At program point L16(lines 8 17) the Hoare annotation is: (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)) [2021-08-29 06:42:03,716 INFO L858 garLoopResultBuilder]: For program point L6(line 6) no Hoare annotation was computed. [2021-08-29 06:42:03,716 INFO L858 garLoopResultBuilder]: For program point L6-1(line 6) no Hoare annotation was computed. [2021-08-29 06:42:03,716 INFO L854 garLoopResultBuilder]: At program point L6-3(line 6) the Hoare annotation is: (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)) [2021-08-29 06:42:03,719 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 06:42:03,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 06:42:03 BoogieIcfgContainer [2021-08-29 06:42:03,727 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 06:42:03,728 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 06:42:03,728 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 06:42:03,728 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 06:42:03,728 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 06:41:51" (3/4) ... [2021-08-29 06:42:03,730 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 06:42:03,736 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-08-29 06:42:03,736 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-29 06:42:03,736 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-08-29 06:42:03,736 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 06:42:03,753 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 06:42:03,754 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 06:42:03,754 INFO L158 Benchmark]: Toolchain (without parser) took 13090.76ms. Allocated memory was 52.4MB in the beginning and 73.4MB in the end (delta: 21.0MB). Free memory was 30.1MB in the beginning and 36.9MB in the end (delta: -6.8MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2021-08-29 06:42:03,754 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 52.4MB. Free memory is still 34.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:42:03,755 INFO L158 Benchmark]: CACSL2BoogieTranslator took 226.88ms. Allocated memory was 52.4MB in the beginning and 73.4MB in the end (delta: 21.0MB). Free memory was 29.9MB in the beginning and 57.6MB in the end (delta: -27.7MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2021-08-29 06:42:03,755 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.19ms. Allocated memory is still 73.4MB. Free memory was 57.6MB in the beginning and 56.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 06:42:03,755 INFO L158 Benchmark]: Boogie Preprocessor took 30.14ms. Allocated memory is still 73.4MB. Free memory was 56.1MB in the beginning and 55.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 06:42:03,756 INFO L158 Benchmark]: RCFGBuilder took 208.36ms. Allocated memory is still 73.4MB. Free memory was 54.9MB in the beginning and 46.4MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-29 06:42:03,756 INFO L158 Benchmark]: TraceAbstraction took 12560.73ms. Allocated memory is still 73.4MB. Free memory was 45.9MB in the beginning and 39.3MB in the end (delta: 6.6MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2021-08-29 06:42:03,756 INFO L158 Benchmark]: Witness Printer took 25.97ms. Allocated memory is still 73.4MB. Free memory was 39.3MB in the beginning and 36.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 06:42:03,758 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 52.4MB. Free memory is still 34.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 226.88ms. Allocated memory was 52.4MB in the beginning and 73.4MB in the end (delta: 21.0MB). Free memory was 29.9MB in the beginning and 57.6MB in the end (delta: -27.7MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.19ms. Allocated memory is still 73.4MB. Free memory was 57.6MB in the beginning and 56.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 30.14ms. Allocated memory is still 73.4MB. Free memory was 56.1MB in the beginning and 55.1MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 208.36ms. Allocated memory is still 73.4MB. Free memory was 54.9MB in the beginning and 46.4MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 12560.73ms. Allocated memory is still 73.4MB. Free memory was 45.9MB in the beginning and 39.3MB in the end (delta: 6.6MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * Witness Printer took 25.97ms. Allocated memory is still 73.4MB. Free memory was 39.3MB in the beginning and 36.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 6]: 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, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12505.42ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 8.60ms, AutomataDifference: 2240.48ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 47.14ms, InitialAbstractionConstructionTime: 6.36ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 78.83ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 75.72ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 5 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 11 mSolverCounterSat, 0.48ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6332.08ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 5.17ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 6 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 19.61ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 23.00ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 30.14ms SsaConstructionTime, 1222.52ms SatisfiabilityAnalysisTime, 8662.32ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 204 SizeOfPredicates, 5 NumberOfNonLiveVariables, 29 ConjunctsInSsa, 7 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: cond == 1bv32 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: cond == 1bv32 RESULT: Ultimate proved your program to be correct! [2021-08-29 06:42:03,863 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...