./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1092d.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 096883e9 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1092d.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 f610a17a072f47d6ea9cfa05b6dbea512bdb1b51 .................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/double_req_bl_1092d.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 f610a17a072f47d6ea9cfa05b6dbea512bdb1b51 .......................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-096883e [2020-12-01 23:20:35,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 23:20:35,182 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 23:20:35,217 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 23:20:35,217 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 23:20:35,219 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 23:20:35,221 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 23:20:35,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 23:20:35,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 23:20:35,227 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 23:20:35,228 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 23:20:35,229 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 23:20:35,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 23:20:35,231 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 23:20:35,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 23:20:35,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 23:20:35,235 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 23:20:35,236 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 23:20:35,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 23:20:35,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 23:20:35,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 23:20:35,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 23:20:35,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 23:20:35,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 23:20:35,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 23:20:35,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 23:20:35,253 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 23:20:35,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 23:20:35,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 23:20:35,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 23:20:35,257 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 23:20:35,258 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 23:20:35,259 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 23:20:35,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 23:20:35,262 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 23:20:35,262 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 23:20:35,263 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 23:20:35,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 23:20:35,264 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 23:20:35,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 23:20:35,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 23:20:35,267 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 23:20:35,295 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 23:20:35,296 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 23:20:35,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 23:20:35,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 23:20:35,298 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 23:20:35,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 23:20:35,298 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 23:20:35,299 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 23:20:35,299 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 23:20:35,299 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 23:20:35,299 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 23:20:35,300 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 23:20:35,300 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 23:20:35,300 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 23:20:35,301 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 23:20:35,301 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 23:20:35,301 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 23:20:35,301 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 23:20:35,302 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 23:20:35,302 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 23:20:35,302 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 23:20:35,303 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:20:35,303 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 23:20:35,303 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 23:20:35,303 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 23:20:35,304 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 23:20:35,304 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 23:20:35,304 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 23:20:35,305 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 23:20:35,305 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f610a17a072f47d6ea9cfa05b6dbea512bdb1b51 [2020-12-01 23:20:35,678 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 23:20:35,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 23:20:35,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 23:20:35,733 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 23:20:35,735 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 23:20:35,737 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1092d.c [2020-12-01 23:20:35,833 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab086a55f/31bcaded38f64393a4e2c319c594d603/FLAGcac596529 [2020-12-01 23:20:36,432 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 23:20:36,433 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1092d.c [2020-12-01 23:20:36,443 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab086a55f/31bcaded38f64393a4e2c319c594d603/FLAGcac596529 [2020-12-01 23:20:36,791 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab086a55f/31bcaded38f64393a4e2c319c594d603 [2020-12-01 23:20:36,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 23:20:36,797 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 23:20:36,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 23:20:36,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 23:20:36,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 23:20:36,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:20:36" (1/1) ... [2020-12-01 23:20:36,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d3dcda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:36, skipping insertion in model container [2020-12-01 23:20:36,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:20:36" (1/1) ... [2020-12-01 23:20:36,828 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 23:20:36,864 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 23:20:37,080 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1092d.c[2417,2430] [2020-12-01 23:20:37,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:20:37,094 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 23:20:37,132 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1092d.c[2417,2430] [2020-12-01 23:20:37,133 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:20:37,151 INFO L208 MainTranslator]: Completed translation [2020-12-01 23:20:37,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:37 WrapperNode [2020-12-01 23:20:37,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 23:20:37,153 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 23:20:37,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 23:20:37,154 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 23:20:37,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:37" (1/1) ... [2020-12-01 23:20:37,174 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:37" (1/1) ... [2020-12-01 23:20:37,204 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 23:20:37,205 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 23:20:37,205 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 23:20:37,205 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 23:20:37,218 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:37" (1/1) ... [2020-12-01 23:20:37,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:37" (1/1) ... [2020-12-01 23:20:37,234 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:37" (1/1) ... [2020-12-01 23:20:37,235 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:37" (1/1) ... [2020-12-01 23:20:37,257 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:37" (1/1) ... [2020-12-01 23:20:37,269 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:37" (1/1) ... [2020-12-01 23:20:37,275 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:37" (1/1) ... [2020-12-01 23:20:37,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 23:20:37,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 23:20:37,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 23:20:37,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 23:20:37,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:37" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:20:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 23:20:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 23:20:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-01 23:20:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 23:20:37,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-01 23:20:37,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 23:20:37,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 23:20:37,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 23:20:37,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 23:20:38,055 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 23:20:38,055 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-12-01 23:20:38,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:20:38 BoogieIcfgContainer [2020-12-01 23:20:38,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 23:20:38,059 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 23:20:38,060 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 23:20:38,063 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 23:20:38,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:20:36" (1/3) ... [2020-12-01 23:20:38,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@546c341f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:20:38, skipping insertion in model container [2020-12-01 23:20:38,065 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:37" (2/3) ... [2020-12-01 23:20:38,065 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@546c341f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:20:38, skipping insertion in model container [2020-12-01 23:20:38,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:20:38" (3/3) ... [2020-12-01 23:20:38,067 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092d.c [2020-12-01 23:20:38,084 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 23:20:38,088 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 23:20:38,101 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 23:20:38,129 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 23:20:38,130 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 23:20:38,130 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 23:20:38,130 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 23:20:38,130 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 23:20:38,131 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 23:20:38,131 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 23:20:38,131 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 23:20:38,146 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-12-01 23:20:38,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 23:20:38,153 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:20:38,154 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:20:38,154 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:20:38,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:20:38,161 INFO L82 PathProgramCache]: Analyzing trace with hash 658478814, now seen corresponding path program 1 times [2020-12-01 23:20:38,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 23:20:38,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571819771] [2020-12-01 23:20:38,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 23:20:38,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:20:38,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:20:38,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571819771] [2020-12-01 23:20:38,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:20:38,344 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 23:20:38,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70187328] [2020-12-01 23:20:38,351 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 23:20:38,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 23:20:38,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 23:20:38,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:20:38,372 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-12-01 23:20:38,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:20:38,397 INFO L93 Difference]: Finished difference Result 72 states and 114 transitions. [2020-12-01 23:20:38,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 23:20:38,399 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-12-01 23:20:38,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:20:38,411 INFO L225 Difference]: With dead ends: 72 [2020-12-01 23:20:38,411 INFO L226 Difference]: Without dead ends: 34 [2020-12-01 23:20:38,415 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:20:38,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-12-01 23:20:38,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-12-01 23:20:38,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-12-01 23:20:38,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2020-12-01 23:20:38,462 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 13 [2020-12-01 23:20:38,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:20:38,463 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2020-12-01 23:20:38,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 23:20:38,463 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-12-01 23:20:38,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 23:20:38,464 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:20:38,464 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:20:38,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 23:20:38,465 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:20:38,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:20:38,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1562173395, now seen corresponding path program 1 times [2020-12-01 23:20:38,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 23:20:38,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913723520] [2020-12-01 23:20:38,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 23:20:38,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:20:38,583 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:20:38,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:20:38,682 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:20:38,712 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 23:20:38,712 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 23:20:38,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 23:20:38,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:20:38 BoogieIcfgContainer [2020-12-01 23:20:38,752 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 23:20:38,753 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 23:20:38,753 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 23:20:38,753 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 23:20:38,754 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:20:38" (3/4) ... [2020-12-01 23:20:38,758 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 23:20:38,758 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 23:20:38,761 INFO L168 Benchmark]: Toolchain (without parser) took 1963.50 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 33.0 MB in the beginning and 33.9 MB in the end (delta: -899.9 kB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:38,762 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 41.9 MB. Free memory was 19.6 MB in the beginning and 19.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:20:38,763 INFO L168 Benchmark]: CACSL2BoogieTranslator took 350.94 ms. Allocated memory is still 56.6 MB. Free memory was 32.9 MB in the beginning and 34.9 MB in the end (delta: -2.1 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:38,764 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.83 ms. Allocated memory is still 56.6 MB. Free memory was 34.9 MB in the beginning and 33.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:38,765 INFO L168 Benchmark]: Boogie Preprocessor took 75.51 ms. Allocated memory is still 56.6 MB. Free memory was 33.1 MB in the beginning and 31.4 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:20:38,766 INFO L168 Benchmark]: RCFGBuilder took 773.36 ms. Allocated memory is still 56.6 MB. Free memory was 31.3 MB in the beginning and 35.7 MB in the end (delta: -4.4 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:38,768 INFO L168 Benchmark]: TraceAbstraction took 692.79 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 35.2 MB in the beginning and 34.3 MB in the end (delta: 917.9 kB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:38,768 INFO L168 Benchmark]: Witness Printer took 5.82 ms. Allocated memory is still 69.2 MB. Free memory was 34.3 MB in the beginning and 33.9 MB in the end (delta: 366.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:20:38,773 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 41.9 MB. Free memory was 19.6 MB in the beginning and 19.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 350.94 ms. Allocated memory is still 56.6 MB. Free memory was 32.9 MB in the beginning and 34.9 MB in the end (delta: -2.1 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.83 ms. Allocated memory is still 56.6 MB. Free memory was 34.9 MB in the beginning and 33.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 75.51 ms. Allocated memory is still 56.6 MB. Free memory was 33.1 MB in the beginning and 31.4 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 773.36 ms. Allocated memory is still 56.6 MB. Free memory was 31.3 MB in the beginning and 35.7 MB in the end (delta: -4.4 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 692.79 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 35.2 MB in the beginning and 34.3 MB in the end (delta: 917.9 kB). Peak memory consumption was 15.1 MB. Max. memory is 16.1 GB. * Witness Printer took 5.82 ms. Allocated memory is still 69.2 MB. Free memory was 34.3 MB in the beginning and 33.9 MB in the end (delta: 366.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 110]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of shiftRight at line 40, overapproximation of bitwiseOr at line 92, overapproximation of someBinaryArithmeticDOUBLEoperation at line 105, overapproximation of bitwiseAnd at line 91. Possible FailurePath: [L16] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L105] double x = -1.0 / 0.0; [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (i0) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (i1) = ew_u.parts.lsw [L27] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L28] COND TRUE j0 < 20 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L29] COND FALSE !(j0 < 0) [L40] i = (0x000fffff) >> j0 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L41] COND TRUE ((i0 & i) | i1) == 0 [L42] return x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L106] double res = ceil_double(x); [L84] __int32_t hx, lx; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L86] ieee_double_shape_type ew_u; [L87] ew_u.value = (x) [L88] EXPR ew_u.parts.msw [L88] (hx) = ew_u.parts.msw [L89] EXPR ew_u.parts.lsw [L89] (lx) = ew_u.parts.lsw [L91] hx &= 0x7fffffff [L92] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L93] hx = 0x7ff00000 - hx [L94] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L109] COND TRUE !isinf_double(res) [L110] reach_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-096883e [2020-12-01 23:20:41,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 23:20:41,403 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 23:20:41,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 23:20:41,438 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 23:20:41,439 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 23:20:41,441 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 23:20:41,444 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 23:20:41,446 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 23:20:41,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 23:20:41,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 23:20:41,451 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 23:20:41,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 23:20:41,453 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 23:20:41,454 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 23:20:41,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 23:20:41,458 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 23:20:41,459 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 23:20:41,461 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 23:20:41,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 23:20:41,466 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 23:20:41,471 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 23:20:41,473 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 23:20:41,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 23:20:41,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 23:20:41,483 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 23:20:41,484 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 23:20:41,487 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 23:20:41,488 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 23:20:41,491 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 23:20:41,493 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 23:20:41,494 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 23:20:41,497 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 23:20:41,498 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 23:20:41,501 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 23:20:41,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 23:20:41,502 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 23:20:41,503 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 23:20:41,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 23:20:41,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 23:20:41,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 23:20:41,508 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-01 23:20:41,561 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 23:20:41,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 23:20:41,565 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 23:20:41,565 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 23:20:41,565 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 23:20:41,566 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 23:20:41,566 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 23:20:41,566 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 23:20:41,567 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 23:20:41,567 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 23:20:41,568 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 23:20:41,568 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 23:20:41,569 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 23:20:41,569 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 23:20:41,569 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 23:20:41,570 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 23:20:41,570 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 23:20:41,570 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 23:20:41,570 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 23:20:41,571 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 23:20:41,571 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 23:20:41,572 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 23:20:41,572 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:20:41,572 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 23:20:41,573 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 23:20:41,573 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 23:20:41,573 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 23:20:41,573 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 23:20:41,574 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 23:20:41,574 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 23:20:41,574 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 23:20:41,574 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f610a17a072f47d6ea9cfa05b6dbea512bdb1b51 [2020-12-01 23:20:41,962 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 23:20:42,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 23:20:42,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 23:20:42,014 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 23:20:42,015 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 23:20:42,016 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1092d.c [2020-12-01 23:20:42,111 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39666f39c/0ff3cb1449fd4387bfc43ec17dd0d066/FLAG69e2f3a6c [2020-12-01 23:20:42,711 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 23:20:42,712 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1092d.c [2020-12-01 23:20:42,724 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39666f39c/0ff3cb1449fd4387bfc43ec17dd0d066/FLAG69e2f3a6c [2020-12-01 23:20:43,085 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39666f39c/0ff3cb1449fd4387bfc43ec17dd0d066 [2020-12-01 23:20:43,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 23:20:43,090 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 23:20:43,096 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 23:20:43,096 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 23:20:43,100 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 23:20:43,101 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:20:43" (1/1) ... [2020-12-01 23:20:43,106 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e56d8a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:43, skipping insertion in model container [2020-12-01 23:20:43,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:20:43" (1/1) ... [2020-12-01 23:20:43,115 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 23:20:43,149 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 23:20:43,380 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1092d.c[2417,2430] [2020-12-01 23:20:43,385 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:20:43,407 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 23:20:43,489 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1092d.c[2417,2430] [2020-12-01 23:20:43,490 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 23:20:43,529 INFO L208 MainTranslator]: Completed translation [2020-12-01 23:20:43,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:43 WrapperNode [2020-12-01 23:20:43,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 23:20:43,534 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 23:20:43,534 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 23:20:43,534 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 23:20:43,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:43" (1/1) ... [2020-12-01 23:20:43,574 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:43" (1/1) ... [2020-12-01 23:20:43,622 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 23:20:43,626 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 23:20:43,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 23:20:43,627 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 23:20:43,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:43" (1/1) ... [2020-12-01 23:20:43,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:43" (1/1) ... [2020-12-01 23:20:43,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:43" (1/1) ... [2020-12-01 23:20:43,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:43" (1/1) ... [2020-12-01 23:20:43,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:43" (1/1) ... [2020-12-01 23:20:43,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:43" (1/1) ... [2020-12-01 23:20:43,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:43" (1/1) ... [2020-12-01 23:20:43,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 23:20:43,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 23:20:43,714 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 23:20:43,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 23:20:43,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 23:20:43,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-12-01 23:20:43,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-12-01 23:20:43,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-01 23:20:43,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 23:20:43,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-01 23:20:43,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 23:20:43,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 23:20:43,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-01 23:20:43,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 23:20:46,071 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 23:20:46,071 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-12-01 23:20:46,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:20:46 BoogieIcfgContainer [2020-12-01 23:20:46,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 23:20:46,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 23:20:46,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 23:20:46,079 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 23:20:46,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:20:43" (1/3) ... [2020-12-01 23:20:46,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@776fc2ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:20:46, skipping insertion in model container [2020-12-01 23:20:46,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:20:43" (2/3) ... [2020-12-01 23:20:46,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@776fc2ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:20:46, skipping insertion in model container [2020-12-01 23:20:46,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:20:46" (3/3) ... [2020-12-01 23:20:46,082 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092d.c [2020-12-01 23:20:46,098 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 23:20:46,102 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 23:20:46,114 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 23:20:46,141 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 23:20:46,142 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 23:20:46,142 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 23:20:46,142 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 23:20:46,142 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 23:20:46,142 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 23:20:46,142 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 23:20:46,142 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 23:20:46,155 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-12-01 23:20:46,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 23:20:46,161 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:20:46,162 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:20:46,162 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:20:46,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:20:46,168 INFO L82 PathProgramCache]: Analyzing trace with hash 658478814, now seen corresponding path program 1 times [2020-12-01 23:20:46,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:20:46,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [231893244] [2020-12-01 23:20:46,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-01 23:20:46,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:20:46,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-01 23:20:46,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 23:20:46,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:20:46,357 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 23:20:46,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:20:46,377 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [231893244] [2020-12-01 23:20:46,378 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:20:46,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-01 23:20:46,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926925360] [2020-12-01 23:20:46,385 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 23:20:46,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 23:20:46,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 23:20:46,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:20:46,406 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-12-01 23:20:46,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:20:46,429 INFO L93 Difference]: Finished difference Result 72 states and 114 transitions. [2020-12-01 23:20:46,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 23:20:46,430 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-12-01 23:20:46,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:20:46,441 INFO L225 Difference]: With dead ends: 72 [2020-12-01 23:20:46,441 INFO L226 Difference]: Without dead ends: 34 [2020-12-01 23:20:46,444 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 23:20:46,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-12-01 23:20:46,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-12-01 23:20:46,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-12-01 23:20:46,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2020-12-01 23:20:46,483 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 13 [2020-12-01 23:20:46,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:20:46,483 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2020-12-01 23:20:46,484 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 23:20:46,484 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-12-01 23:20:46,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 23:20:46,485 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:20:46,485 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:20:46,700 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 23:20:46,701 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:20:46,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:20:46,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1562173395, now seen corresponding path program 1 times [2020-12-01 23:20:46,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:20:46,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1520460786] [2020-12-01 23:20:46,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-01 23:20:46,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 23:20:46,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 23:20:46,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 23:20:47,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:20:47,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 23:20:47,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 23:20:47,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1520460786] [2020-12-01 23:20:47,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 23:20:47,339 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-12-01 23:20:47,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667420146] [2020-12-01 23:20:47,340 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-01 23:20:47,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 23:20:47,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-01 23:20:47,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-01 23:20:47,343 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand 8 states. [2020-12-01 23:20:47,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 23:20:47,888 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2020-12-01 23:20:47,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 23:20:47,892 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-12-01 23:20:47,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 23:20:47,893 INFO L225 Difference]: With dead ends: 42 [2020-12-01 23:20:47,893 INFO L226 Difference]: Without dead ends: 16 [2020-12-01 23:20:47,894 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-12-01 23:20:47,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-12-01 23:20:47,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-12-01 23:20:47,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-01 23:20:47,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-12-01 23:20:47,906 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 15 [2020-12-01 23:20:47,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 23:20:47,908 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-12-01 23:20:47,909 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-01 23:20:47,909 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-12-01 23:20:47,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 23:20:47,911 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 23:20:47,911 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 23:20:48,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-01 23:20:48,127 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 23:20:48,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 23:20:48,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1582346339, now seen corresponding path program 1 times [2020-12-01 23:20:48,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 23:20:48,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [206484167] [2020-12-01 23:20:48,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-01 23:20:48,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:20:48,370 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:20:48,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 23:20:48,572 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 23:20:48,635 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-12-01 23:20:48,636 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 23:20:48,836 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-01 23:20:48,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:20:48 BoogieIcfgContainer [2020-12-01 23:20:48,880 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 23:20:48,881 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 23:20:48,881 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 23:20:48,882 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 23:20:48,882 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:20:46" (3/4) ... [2020-12-01 23:20:48,885 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 23:20:48,943 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-12-01 23:20:48,943 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 23:20:48,946 INFO L168 Benchmark]: Toolchain (without parser) took 5854.61 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 29.2 MB in the beginning and 37.1 MB in the end (delta: -7.9 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:48,946 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 37.7 MB. Free memory was 24.4 MB in the beginning and 24.4 MB in the end (delta: 25.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 23:20:48,947 INFO L168 Benchmark]: CACSL2BoogieTranslator took 437.11 ms. Allocated memory is still 52.4 MB. Free memory was 29.0 MB in the beginning and 30.4 MB in the end (delta: -1.4 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:48,948 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.48 ms. Allocated memory is still 52.4 MB. Free memory was 30.4 MB in the beginning and 28.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:48,949 INFO L168 Benchmark]: Boogie Preprocessor took 85.28 ms. Allocated memory is still 52.4 MB. Free memory was 28.5 MB in the beginning and 26.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:48,950 INFO L168 Benchmark]: RCFGBuilder took 2361.61 ms. Allocated memory is still 52.4 MB. Free memory was 26.7 MB in the beginning and 30.5 MB in the end (delta: -3.7 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:48,951 INFO L168 Benchmark]: TraceAbstraction took 2805.44 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 30.0 MB in the beginning and 39.9 MB in the end (delta: -9.9 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:48,951 INFO L168 Benchmark]: Witness Printer took 62.39 ms. Allocated memory is still 62.9 MB. Free memory was 39.9 MB in the beginning and 37.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 23:20:48,956 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 37.7 MB. Free memory was 24.4 MB in the beginning and 24.4 MB in the end (delta: 25.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 437.11 ms. Allocated memory is still 52.4 MB. Free memory was 29.0 MB in the beginning and 30.4 MB in the end (delta: -1.4 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.48 ms. Allocated memory is still 52.4 MB. Free memory was 30.4 MB in the beginning and 28.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 85.28 ms. Allocated memory is still 52.4 MB. Free memory was 28.5 MB in the beginning and 26.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2361.61 ms. Allocated memory is still 52.4 MB. Free memory was 26.7 MB in the beginning and 30.5 MB in the end (delta: -3.7 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2805.44 ms. Allocated memory was 52.4 MB in the beginning and 62.9 MB in the end (delta: 10.5 MB). Free memory was 30.0 MB in the beginning and 39.9 MB in the end (delta: -9.9 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. * Witness Printer took 62.39 ms. Allocated memory is still 62.9 MB. Free memory was 39.9 MB in the beginning and 37.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 110]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L16] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L105] double x = -1.0 / 0.0; [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L22] ieee_double_shape_type ew_u; [L23] ew_u.value = (x) [L24] EXPR ew_u.parts.msw [L24] (i0) = ew_u.parts.msw [L25] EXPR ew_u.parts.lsw [L25] (i1) = ew_u.parts.lsw [L27] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L28] COND FALSE !(j0 < 20) VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L50] COND TRUE j0 > 51 VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L51] COND TRUE j0 == 0x400 [L52] return x + x; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L106] double res = ceil_double(x); [L84] __int32_t hx, lx; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L86] ieee_double_shape_type ew_u; [L87] ew_u.value = (x) [L88] EXPR ew_u.parts.msw [L88] (hx) = ew_u.parts.msw [L89] EXPR ew_u.parts.lsw [L89] (lx) = ew_u.parts.lsw [L91] hx &= 0x7fffffff [L92] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L93] hx = 0x7ff00000 - hx [L94] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L109] COND TRUE !isinf_double(res) [L110] reach_error() VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 61 SDtfs, 44 SDslu, 6 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 52 ConstructedInterpolants, 5 QuantifiedInterpolants, 2332 SizeOfPredicates, 8 NumberOfNonLiveVariables, 110 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...