./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/addsub_float_exact.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8d31f386 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/addsub_float_exact.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 12de589994efba7ef02a09446e6dcc495aa77e08 .......................................................................................................................................................................................................................................... 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/addsub_float_exact.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 12de589994efba7ef02a09446e6dcc495aa77e08 .............................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-04 22:58:59,115 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-04 22:58:59,117 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-04 22:58:59,148 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-04 22:58:59,149 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-04 22:58:59,150 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-04 22:58:59,151 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-04 22:58:59,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-04 22:58:59,154 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-04 22:58:59,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-04 22:58:59,156 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-04 22:58:59,157 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-04 22:58:59,157 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-04 22:58:59,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-04 22:58:59,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-04 22:58:59,160 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-04 22:58:59,160 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-04 22:58:59,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-04 22:58:59,162 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-04 22:58:59,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-04 22:58:59,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-04 22:58:59,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-04 22:58:59,167 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-04 22:58:59,168 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-04 22:58:59,170 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-04 22:58:59,170 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-04 22:58:59,170 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-04 22:58:59,171 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-04 22:58:59,171 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-04 22:58:59,172 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-04 22:58:59,172 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-04 22:58:59,173 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-04 22:58:59,174 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-04 22:58:59,175 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-04 22:58:59,175 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-04 22:58:59,176 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-04 22:58:59,176 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-04 22:58:59,180 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-04 22:58:59,180 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-04 22:58:59,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-04 22:58:59,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-04 22:58:59,184 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-04 22:58:59,203 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-04 22:58:59,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-04 22:58:59,204 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-04 22:58:59,205 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-04 22:58:59,205 INFO L138 SettingsManager]: * Use SBE=true [2021-07-04 22:58:59,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-04 22:58:59,205 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-04 22:58:59,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-04 22:58:59,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-04 22:58:59,206 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-04 22:58:59,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-04 22:58:59,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-04 22:58:59,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-04 22:58:59,206 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-04 22:58:59,206 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-04 22:58:59,207 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-04 22:58:59,207 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-04 22:58:59,207 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-04 22:58:59,207 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-04 22:58:59,207 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-04 22:58:59,208 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 22:58:59,208 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-04 22:58:59,208 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-04 22:58:59,208 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-04 22:58:59,208 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-04 22:58:59,209 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-04 22:58:59,209 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-04 22:58:59,209 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-04 22:58:59,209 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12de589994efba7ef02a09446e6dcc495aa77e08 [2021-07-04 22:58:59,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-04 22:58:59,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-04 22:58:59,524 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-04 22:58:59,525 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-04 22:58:59,526 INFO L275 PluginConnector]: CDTParser initialized [2021-07-04 22:58:59,526 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/addsub_float_exact.c [2021-07-04 22:58:59,592 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/856da324c/742b18bf70a3415a949674b65ea8a8af/FLAG69b7db7b1 [2021-07-04 22:59:00,053 INFO L306 CDTParser]: Found 1 translation units. [2021-07-04 22:59:00,055 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/addsub_float_exact.c [2021-07-04 22:59:00,060 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/856da324c/742b18bf70a3415a949674b65ea8a8af/FLAG69b7db7b1 [2021-07-04 22:59:00,082 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/856da324c/742b18bf70a3415a949674b65ea8a8af [2021-07-04 22:59:00,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-04 22:59:00,086 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-04 22:59:00,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-04 22:59:00,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-04 22:59:00,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-04 22:59:00,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 10:59:00" (1/1) ... [2021-07-04 22:59:00,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29504ebc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:59:00, skipping insertion in model container [2021-07-04 22:59:00,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 10:59:00" (1/1) ... [2021-07-04 22:59:00,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-04 22:59:00,106 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-04 22:59:00,218 WARN L224 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/addsub_float_exact.c[392,405] [2021-07-04 22:59:00,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 22:59:00,234 INFO L203 MainTranslator]: Completed pre-run [2021-07-04 22:59:00,251 WARN L224 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/addsub_float_exact.c[392,405] [2021-07-04 22:59:00,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 22:59:00,279 INFO L208 MainTranslator]: Completed translation [2021-07-04 22:59:00,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:59:00 WrapperNode [2021-07-04 22:59:00,279 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-04 22:59:00,280 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-04 22:59:00,280 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-04 22:59:00,281 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-04 22:59:00,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:59:00" (1/1) ... [2021-07-04 22:59:00,290 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:59:00" (1/1) ... [2021-07-04 22:59:00,309 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-04 22:59:00,310 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-04 22:59:00,310 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-04 22:59:00,310 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-04 22:59:00,316 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:59:00" (1/1) ... [2021-07-04 22:59:00,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:59:00" (1/1) ... [2021-07-04 22:59:00,317 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:59:00" (1/1) ... [2021-07-04 22:59:00,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:59:00" (1/1) ... [2021-07-04 22:59:00,323 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:59:00" (1/1) ... [2021-07-04 22:59:00,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:59:00" (1/1) ... [2021-07-04 22:59:00,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:59:00" (1/1) ... [2021-07-04 22:59:00,332 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-04 22:59:00,333 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-04 22:59:00,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-04 22:59:00,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-04 22:59:00,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:59:00" (1/1) ... [2021-07-04 22:59:00,340 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 22:59:00,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-04 22:59:00,362 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) [2021-07-04 22:59:00,388 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 [2021-07-04 22:59:00,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-04 22:59:00,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-04 22:59:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-04 22:59:00,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-04 22:59:00,603 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-04 22:59:00,604 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-07-04 22:59:00,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:59:00 BoogieIcfgContainer [2021-07-04 22:59:00,605 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-04 22:59:00,606 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-04 22:59:00,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-04 22:59:00,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-04 22:59:00,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.07 10:59:00" (1/3) ... [2021-07-04 22:59:00,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3888846b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 10:59:00, skipping insertion in model container [2021-07-04 22:59:00,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:59:00" (2/3) ... [2021-07-04 22:59:00,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3888846b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 10:59:00, skipping insertion in model container [2021-07-04 22:59:00,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:59:00" (3/3) ... [2021-07-04 22:59:00,611 INFO L111 eAbstractionObserver]: Analyzing ICFG addsub_float_exact.c [2021-07-04 22:59:00,617 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-04 22:59:00,618 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-04 22:59:00,652 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-04 22:59:00,657 INFO L329 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, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-04 22:59:00,657 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-04 22:59:00,675 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) [2021-07-04 22:59:00,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-07-04 22:59:00,679 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 22:59:00,680 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-07-04 22:59:00,680 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 22:59:00,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 22:59:00,685 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-07-04 22:59:00,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-04 22:59:00,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794876505] [2021-07-04 22:59:00,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 22:59:00,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-04 22:59:00,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-04 22:59:00,773 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-04 22:59:00,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-04 22:59:00,786 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-04 22:59:00,801 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-04 22:59:00,803 INFO L639 BasicCegarLoop]: Counterexample is feasible [2021-07-04 22:59:00,805 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-04 22:59:00,806 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-04 22:59:00,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.07 10:59:00 BoogieIcfgContainer [2021-07-04 22:59:00,823 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-04 22:59:00,824 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-04 22:59:00,824 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-04 22:59:00,824 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-04 22:59:00,825 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:59:00" (3/4) ... [2021-07-04 22:59:00,827 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-07-04 22:59:00,827 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-04 22:59:00,829 INFO L168 Benchmark]: Toolchain (without parser) took 742.56 ms. Allocated memory was 62.9 MB in the beginning and 86.0 MB in the end (delta: 23.1 MB). Free memory was 43.2 MB in the beginning and 60.8 MB in the end (delta: -17.6 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. [2021-07-04 22:59:00,830 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 62.9 MB. Free memory is still 44.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:59:00,830 INFO L168 Benchmark]: CACSL2BoogieTranslator took 192.87 ms. Allocated memory is still 62.9 MB. Free memory was 43.0 MB in the beginning and 46.4 MB in the end (delta: -3.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-07-04 22:59:00,831 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.85 ms. Allocated memory is still 62.9 MB. Free memory was 46.4 MB in the beginning and 45.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:59:00,831 INFO L168 Benchmark]: Boogie Preprocessor took 22.16 ms. Allocated memory is still 62.9 MB. Free memory was 45.1 MB in the beginning and 44.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:59:00,832 INFO L168 Benchmark]: RCFGBuilder took 271.55 ms. Allocated memory is still 62.9 MB. Free memory was 44.1 MB in the beginning and 33.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-07-04 22:59:00,832 INFO L168 Benchmark]: TraceAbstraction took 217.38 ms. Allocated memory was 62.9 MB in the beginning and 86.0 MB in the end (delta: 23.1 MB). Free memory was 33.3 MB in the beginning and 61.2 MB in the end (delta: -27.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:59:00,833 INFO L168 Benchmark]: Witness Printer took 3.31 ms. Allocated memory is still 86.0 MB. Free memory was 61.2 MB in the beginning and 60.8 MB in the end (delta: 367.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-04 22:59:00,835 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 62.9 MB. Free memory is still 44.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 192.87 ms. Allocated memory is still 62.9 MB. Free memory was 43.0 MB in the beginning and 46.4 MB in the end (delta: -3.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 28.85 ms. Allocated memory is still 62.9 MB. Free memory was 46.4 MB in the beginning and 45.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.16 ms. Allocated memory is still 62.9 MB. Free memory was 45.1 MB in the beginning and 44.1 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 271.55 ms. Allocated memory is still 62.9 MB. Free memory was 44.1 MB in the beginning and 33.6 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 217.38 ms. Allocated memory was 62.9 MB in the beginning and 86.0 MB in the end (delta: 23.1 MB). Free memory was 33.3 MB in the beginning and 61.2 MB in the end (delta: -27.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.31 ms. Allocated memory is still 86.0 MB. Free memory was 61.2 MB in the beginning and 60.8 MB in the end (delta: 367.3 kB). Peak memory consumption was 2.1 MB. 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: 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 16, overapproximation of someBinaryArithmeticFLOAToperation at line 13. Possible FailurePath: [L10] float x, y, z, r; [L12] x = 1e7f [L13] y = x + 1.f [L14] z = x - 1.f [L15] r = y - z [L6] COND TRUE !(cond) [L6] reach_error() - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 159.0ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 13.7ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms 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, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 4.3ms SsaConstructionTime, 28.3ms SatisfiabilityAnalysisTime, 0.0ms 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 [2021-07-04 22:59:00,870 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.multireach-323-8d31f38 [2021-07-04 22:59:02,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-04 22:59:02,710 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-04 22:59:02,750 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-04 22:59:02,750 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-04 22:59:02,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-04 22:59:02,755 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-04 22:59:02,759 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-04 22:59:02,761 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-04 22:59:02,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-04 22:59:02,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-04 22:59:02,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-04 22:59:02,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-04 22:59:02,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-04 22:59:02,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-04 22:59:02,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-04 22:59:02,774 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-04 22:59:02,775 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-04 22:59:02,777 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-04 22:59:02,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-04 22:59:02,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-04 22:59:02,785 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-04 22:59:02,786 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-04 22:59:02,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-04 22:59:02,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-04 22:59:02,799 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-04 22:59:02,799 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-04 22:59:02,801 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-04 22:59:02,801 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-04 22:59:02,802 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-04 22:59:02,802 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-04 22:59:02,803 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-04 22:59:02,804 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-04 22:59:02,805 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-04 22:59:02,806 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-04 22:59:02,806 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-04 22:59:02,806 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-04 22:59:02,807 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-04 22:59:02,807 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-04 22:59:02,808 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-04 22:59:02,809 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-04 22:59:02,810 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-07-04 22:59:02,845 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-04 22:59:02,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-04 22:59:02,847 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-04 22:59:02,847 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-04 22:59:02,848 INFO L138 SettingsManager]: * Use SBE=true [2021-07-04 22:59:02,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-04 22:59:02,848 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-04 22:59:02,848 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-04 22:59:02,848 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-04 22:59:02,848 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-04 22:59:02,849 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-04 22:59:02,849 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-04 22:59:02,849 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-07-04 22:59:02,850 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-07-04 22:59:02,850 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-04 22:59:02,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-04 22:59:02,850 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-04 22:59:02,850 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-04 22:59:02,850 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-04 22:59:02,850 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-04 22:59:02,851 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-04 22:59:02,851 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 22:59:02,851 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-04 22:59:02,851 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-04 22:59:02,851 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-04 22:59:02,851 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-07-04 22:59:02,851 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-07-04 22:59:02,852 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-04 22:59:02,852 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-04 22:59:02,852 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-04 22:59:02,852 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12de589994efba7ef02a09446e6dcc495aa77e08 [2021-07-04 22:59:03,160 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-04 22:59:03,183 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-04 22:59:03,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-04 22:59:03,187 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-04 22:59:03,188 INFO L275 PluginConnector]: CDTParser initialized [2021-07-04 22:59:03,189 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/addsub_float_exact.c [2021-07-04 22:59:03,249 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4292b8131/e2b60cf4a1c5421c8adc173a40dc9c8b/FLAG15c586526 [2021-07-04 22:59:03,671 INFO L306 CDTParser]: Found 1 translation units. [2021-07-04 22:59:03,671 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/addsub_float_exact.c [2021-07-04 22:59:03,676 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4292b8131/e2b60cf4a1c5421c8adc173a40dc9c8b/FLAG15c586526 [2021-07-04 22:59:04,090 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4292b8131/e2b60cf4a1c5421c8adc173a40dc9c8b [2021-07-04 22:59:04,094 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-04 22:59:04,095 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-04 22:59:04,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-04 22:59:04,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-04 22:59:04,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-04 22:59:04,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 10:59:04" (1/1) ... [2021-07-04 22:59:04,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e59b1f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:59:04, skipping insertion in model container [2021-07-04 22:59:04,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 10:59:04" (1/1) ... [2021-07-04 22:59:04,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-04 22:59:04,121 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-04 22:59:04,213 WARN L224 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/addsub_float_exact.c[392,405] [2021-07-04 22:59:04,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 22:59:04,247 INFO L203 MainTranslator]: Completed pre-run [2021-07-04 22:59:04,286 WARN L224 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/addsub_float_exact.c[392,405] [2021-07-04 22:59:04,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 22:59:04,310 INFO L208 MainTranslator]: Completed translation [2021-07-04 22:59:04,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:59:04 WrapperNode [2021-07-04 22:59:04,312 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-04 22:59:04,313 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-04 22:59:04,314 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-04 22:59:04,314 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-04 22:59:04,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:59:04" (1/1) ... [2021-07-04 22:59:04,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:59:04" (1/1) ... [2021-07-04 22:59:04,341 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-04 22:59:04,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-04 22:59:04,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-04 22:59:04,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-04 22:59:04,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:59:04" (1/1) ... [2021-07-04 22:59:04,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:59:04" (1/1) ... [2021-07-04 22:59:04,361 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:59:04" (1/1) ... [2021-07-04 22:59:04,361 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:59:04" (1/1) ... [2021-07-04 22:59:04,371 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:59:04" (1/1) ... [2021-07-04 22:59:04,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:59:04" (1/1) ... [2021-07-04 22:59:04,379 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:59:04" (1/1) ... [2021-07-04 22:59:04,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-04 22:59:04,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-04 22:59:04,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-04 22:59:04,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-04 22:59:04,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:59:04" (1/1) ... [2021-07-04 22:59:04,389 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 22:59:04,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-04 22:59:04,410 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) [2021-07-04 22:59:04,425 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 [2021-07-04 22:59:04,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-04 22:59:04,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-04 22:59:04,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-07-04 22:59:04,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-04 22:59:04,914 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-04 22:59:04,914 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-07-04 22:59:04,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:59:04 BoogieIcfgContainer [2021-07-04 22:59:04,920 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-04 22:59:04,922 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-04 22:59:04,922 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-04 22:59:04,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-04 22:59:04,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.07 10:59:04" (1/3) ... [2021-07-04 22:59:04,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c93eb63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 10:59:04, skipping insertion in model container [2021-07-04 22:59:04,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:59:04" (2/3) ... [2021-07-04 22:59:04,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c93eb63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 10:59:04, skipping insertion in model container [2021-07-04 22:59:04,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:59:04" (3/3) ... [2021-07-04 22:59:04,927 INFO L111 eAbstractionObserver]: Analyzing ICFG addsub_float_exact.c [2021-07-04 22:59:04,933 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-04 22:59:04,934 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-04 22:59:04,980 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-04 22:59:04,991 INFO L329 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, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-04 22:59:04,992 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-04 22:59:05,006 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) [2021-07-04 22:59:05,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-07-04 22:59:05,010 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 22:59:05,011 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-07-04 22:59:05,011 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 22:59:05,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 22:59:05,017 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2021-07-04 22:59:05,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-07-04 22:59:05,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1495406667] [2021-07-04 22:59:05,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 22:59:05,027 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-07-04 22:59:05,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-07-04 22:59:05,033 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) [2021-07-04 22:59:05,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-07-04 22:59:05,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-04 22:59:05,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2021-07-04 22:59:05,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-04 22:59:05,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:59:05,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:59:05,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:59:05,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:59:05,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:59:05,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:59:05,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:59:05,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:59:05,272 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:59:05,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-07-04 22:59:05,290 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:59:05,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-04 22:59:05,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:59:05,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-07-04 22:59:05,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:59:05,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-07-04 22:59:05,329 INFO L142 QuantifierPusher]: treesize reduction 6, result has 14.3 percent of original size [2021-07-04 22:59:05,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:59:05,331 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:59:05,331 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:59:05,332 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:59:05,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:59:05,333 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:59:05,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:59:05,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-04 22:59:05,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-07-04 22:59:05,336 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:59:05,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:59:05,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:59:05,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:59:05,339 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:59:05,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:59:05,340 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:59:05,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:59:05,341 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:59:05,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-04 22:59:05,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:59:05,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-04 22:59:05,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:59:05,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-04 22:59:05,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:59:05,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-07-04 22:59:05,354 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:59:05,356 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:59:05,357 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:59:05,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-04 22:59:05,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-04 22:59:05,360 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:59:05,360 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:59:05,361 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:59:05,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-07-04 22:59:05,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-07-04 22:59:05,366 INFO L142 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size [2021-07-04 22:59:05,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-07-04 22:59:05,373 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:59:05,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-07-04 22:59:05,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-04 22:59:05,380 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-07-04 22:59:05,381 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1495406667] [2021-07-04 22:59:05,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1495406667] provided 2 perfect and 0 imperfect interpolant sequences [2021-07-04 22:59:05,381 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-07-04 22:59:05,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-07-04 22:59:05,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537803576] [2021-07-04 22:59:05,387 INFO L425 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-04 22:59:05,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-07-04 22:59:05,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-04 22:59:05,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-04 22:59:05,398 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 5 states, 5 states have (on average 1.4) 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) [2021-07-04 22:59:05,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-04 22:59:05,512 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2021-07-04 22:59:05,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-04 22:59:05,514 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) 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 [2021-07-04 22:59:05,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-04 22:59:05,518 INFO L225 Difference]: With dead ends: 13 [2021-07-04 22:59:05,519 INFO L226 Difference]: Without dead ends: 0 [2021-07-04 22:59:05,521 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 70.3ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-07-04 22:59:05,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-04 22:59:05,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-04 22:59:05,538 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) [2021-07-04 22:59:05,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-04 22:59:05,540 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-07-04 22:59:05,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-04 22:59:05,540 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-04 22:59:05,540 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 1.4) 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) [2021-07-04 22:59:05,540 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-04 22:59:05,540 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-04 22:59:05,544 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-04 22:59:05,546 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-04 22:59:05,571 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-04 22:59:05,588 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-04 22:59:05,589 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-04 22:59:05,589 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-04 22:59:05,589 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-04 22:59:05,589 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2021-07-04 22:59:05,589 INFO L758 garLoopResultBuilder]: At program point L17(lines 8 18) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) [2021-07-04 22:59:05,589 INFO L762 garLoopResultBuilder]: For program point L6(line 6) no Hoare annotation was computed. [2021-07-04 22:59:05,590 INFO L762 garLoopResultBuilder]: For program point L6-1(line 6) no Hoare annotation was computed. [2021-07-04 22:59:05,590 INFO L758 garLoopResultBuilder]: At program point L6-3(line 6) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32))) [2021-07-04 22:59:05,605 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-07-04 22:59:05,802 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-07-04 22:59:05,802 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-04 22:59:05,811 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-07-04 22:59:05,813 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-07-04 22:59:05,814 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-07-04 22:59:05,814 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-07-04 22:59:05,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.07 10:59:05 BoogieIcfgContainer [2021-07-04 22:59:05,815 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-04 22:59:05,815 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-04 22:59:05,815 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-04 22:59:05,816 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-04 22:59:05,816 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:59:04" (3/4) ... [2021-07-04 22:59:05,819 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-07-04 22:59:05,828 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-07-04 22:59:05,828 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-07-04 22:59:05,828 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-07-04 22:59:05,829 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-07-04 22:59:05,867 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-04 22:59:05,867 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-04 22:59:05,868 INFO L168 Benchmark]: Toolchain (without parser) took 1772.82 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 36.8 MB in the beginning and 32.8 MB in the end (delta: 4.0 MB). Peak memory consumption was 15.4 MB. Max. memory is 16.1 GB. [2021-07-04 22:59:05,869 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 58.7 MB. Free memory is still 39.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:59:05,872 INFO L168 Benchmark]: CACSL2BoogieTranslator took 214.59 ms. Allocated memory is still 58.7 MB. Free memory was 36.6 MB in the beginning and 41.7 MB in the end (delta: -5.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2021-07-04 22:59:05,872 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.76 ms. Allocated memory is still 58.7 MB. Free memory was 41.7 MB in the beginning and 40.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-04 22:59:05,872 INFO L168 Benchmark]: Boogie Preprocessor took 39.41 ms. Allocated memory is still 58.7 MB. Free memory was 40.3 MB in the beginning and 39.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:59:05,873 INFO L168 Benchmark]: RCFGBuilder took 537.96 ms. Allocated memory is still 58.7 MB. Free memory was 39.2 MB in the beginning and 41.6 MB in the end (delta: -2.4 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2021-07-04 22:59:05,873 INFO L168 Benchmark]: TraceAbstraction took 893.24 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 41.1 MB in the beginning and 35.0 MB in the end (delta: 6.2 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. [2021-07-04 22:59:05,873 INFO L168 Benchmark]: Witness Printer took 52.01 ms. Allocated memory is still 71.3 MB. Free memory was 35.0 MB in the beginning and 32.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-04 22:59:05,879 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 58.7 MB. Free memory is still 39.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 214.59 ms. Allocated memory is still 58.7 MB. Free memory was 36.6 MB in the beginning and 41.7 MB in the end (delta: -5.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 27.76 ms. Allocated memory is still 58.7 MB. Free memory was 41.7 MB in the beginning and 40.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.41 ms. Allocated memory is still 58.7 MB. Free memory was 40.3 MB in the beginning and 39.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 537.96 ms. Allocated memory is still 58.7 MB. Free memory was 39.2 MB in the beginning and 41.6 MB in the end (delta: -2.4 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 893.24 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 41.1 MB in the beginning and 35.0 MB in the end (delta: 6.2 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. * Witness Printer took 52.01 ms. Allocated memory is still 71.3 MB. Free memory was 35.0 MB in the beginning and 32.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.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: 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 for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 827.2ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 10.5ms, AutomataDifference: 133.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 45.0ms, InitialAbstractionConstructionTime: 7.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 4 SDtfs, 13 SDslu, 1 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 80.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 70.3ms Time, 0.0ms 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, 0.0ms DumpTime, AutomataMinimizationStatistics: 6.9ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 14 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 27.3ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 12.6ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 31.3ms SsaConstructionTime, 76.4ms SatisfiabilityAnalysisTime, 159.7ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 6 NumberOfNonLiveVariables, 30 ConjunctsInSsa, 8 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: 8]: Loop Invariant [2021-07-04 22:59:05,892 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-07-04 22:59:05,893 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && cond == 1bv32 - InvariantResult [Line: 6]: Loop Invariant [2021-07-04 22:59:05,894 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-07-04 22:59:05,894 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && cond == 1bv32 RESULT: Ultimate proved your program to be correct! [2021-07-04 22:59:05,936 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...