./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/Rump_float.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/Rump_float.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 14bbb74942280ceabf9fcd57c23c432d4c6462f0 .................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/Rump_float.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 14bbb74942280ceabf9fcd57c23c432d4c6462f0 ..................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 21:35:43,109 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:35:43,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:35:43,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:35:43,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:35:43,181 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:35:43,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:35:43,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:35:43,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:35:43,204 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:35:43,206 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:35:43,209 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:35:43,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:35:43,217 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:35:43,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:35:43,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:35:43,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:35:43,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:35:43,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:35:43,238 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:35:43,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:35:43,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:35:43,244 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:35:43,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:35:43,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:35:43,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:35:43,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:35:43,257 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:35:43,258 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:35:43,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:35:43,259 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:35:43,260 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:35:43,263 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:35:43,264 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:35:43,265 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:35:43,266 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:35:43,269 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:35:43,269 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:35:43,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:35:43,272 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:35:43,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:35:43,274 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 21:35:43,323 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:35:43,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:35:43,327 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:35:43,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:35:43,328 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:35:43,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:35:43,329 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:35:43,329 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 21:35:43,329 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:35:43,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:35:43,331 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:35:43,331 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:35:43,331 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:35:43,331 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:35:43,332 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:35:43,332 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:35:43,332 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:35:43,332 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:35:43,333 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:35:43,333 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:35:43,333 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:35:43,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:35:43,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:35:43,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:35:43,334 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:35:43,335 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 21:35:43,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 21:35:43,335 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:35:43,335 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:35:43,336 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14bbb74942280ceabf9fcd57c23c432d4c6462f0 [2020-10-25 21:35:43,753 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:35:43,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:35:43,806 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:35:43,808 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:35:43,810 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:35:43,811 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/Rump_float.c [2020-10-25 21:35:43,905 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f63d3112/3dc58154dcaf45678867a61db3ab5962/FLAGbd1dba11b [2020-10-25 21:35:44,534 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:35:44,535 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/Rump_float.c [2020-10-25 21:35:44,543 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f63d3112/3dc58154dcaf45678867a61db3ab5962/FLAGbd1dba11b [2020-10-25 21:35:44,893 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f63d3112/3dc58154dcaf45678867a61db3ab5962 [2020-10-25 21:35:44,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:35:44,915 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:35:44,921 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:35:44,921 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:35:44,926 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:35:44,928 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:35:44" (1/1) ... [2020-10-25 21:35:44,933 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57abd98c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:44, skipping insertion in model container [2020-10-25 21:35:44,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:35:44" (1/1) ... [2020-10-25 21:35:44,943 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:35:44,965 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:35:45,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:35:45,235 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:35:45,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:35:45,272 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:35:45,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:45 WrapperNode [2020-10-25 21:35:45,273 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:35:45,274 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:35:45,275 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:35:45,275 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:35:45,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:45" (1/1) ... [2020-10-25 21:35:45,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:45" (1/1) ... [2020-10-25 21:35:45,313 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:35:45,314 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:35:45,314 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:35:45,314 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:35:45,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:45" (1/1) ... [2020-10-25 21:35:45,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:45" (1/1) ... [2020-10-25 21:35:45,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:45" (1/1) ... [2020-10-25 21:35:45,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:45" (1/1) ... [2020-10-25 21:35:45,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:45" (1/1) ... [2020-10-25 21:35:45,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:45" (1/1) ... [2020-10-25 21:35:45,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:45" (1/1) ... [2020-10-25 21:35:45,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:35:45,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:35:45,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:35:45,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:35:45,341 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:35:45,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:35:45,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:35:45,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 21:35:45,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:35:45,675 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:35:45,675 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-25 21:35:45,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:35:45 BoogieIcfgContainer [2020-10-25 21:35:45,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:35:45,679 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:35:45,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:35:45,683 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:35:45,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:35:44" (1/3) ... [2020-10-25 21:35:45,684 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ef42b05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:35:45, skipping insertion in model container [2020-10-25 21:35:45,684 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:45" (2/3) ... [2020-10-25 21:35:45,685 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ef42b05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:35:45, skipping insertion in model container [2020-10-25 21:35:45,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:35:45" (3/3) ... [2020-10-25 21:35:45,686 INFO L111 eAbstractionObserver]: Analyzing ICFG Rump_float.c [2020-10-25 21:35:45,696 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:35:45,700 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 21:35:45,713 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 21:35:45,739 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:35:45,740 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:35:45,740 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:35:45,740 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:35:45,740 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:35:45,740 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:35:45,740 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:35:45,740 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:35:45,756 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-10-25 21:35:45,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-25 21:35:45,761 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:35:45,762 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-25 21:35:45,763 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:35:45,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:35:45,770 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-10-25 21:35:45,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 21:35:45,781 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982468836] [2020-10-25 21:35:45,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 21:35:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:35:45,915 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:35:45,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-25 21:35:45,941 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-25 21:35:45,967 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-25 21:35:45,968 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-25 21:35:45,969 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 21:35:45,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:35:45 BoogieIcfgContainer [2020-10-25 21:35:46,000 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:35:46,001 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:35:46,001 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:35:46,001 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:35:46,002 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:35:45" (3/4) ... [2020-10-25 21:35:46,006 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-25 21:35:46,007 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:35:46,010 INFO L168 Benchmark]: Toolchain (without parser) took 1099.97 ms. Allocated memory is still 54.5 MB. Free memory was 30.8 MB in the beginning and 36.8 MB in the end (delta: -6.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:35:46,011 INFO L168 Benchmark]: CDTParser took 0.40 ms. Allocated memory is still 44.0 MB. Free memory was 23.5 MB in the beginning and 23.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:35:46,012 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.69 ms. Allocated memory is still 54.5 MB. Free memory was 30.1 MB in the beginning and 33.9 MB in the end (delta: -3.8 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-10-25 21:35:46,013 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.80 ms. Allocated memory is still 54.5 MB. Free memory was 33.9 MB in the beginning and 32.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:35:46,014 INFO L168 Benchmark]: Boogie Preprocessor took 24.99 ms. Allocated memory is still 54.5 MB. Free memory was 32.5 MB in the beginning and 31.6 MB in the end (delta: 823.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:35:46,015 INFO L168 Benchmark]: RCFGBuilder took 338.10 ms. Allocated memory is still 54.5 MB. Free memory was 31.5 MB in the beginning and 35.1 MB in the end (delta: -3.6 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2020-10-25 21:35:46,016 INFO L168 Benchmark]: TraceAbstraction took 320.44 ms. Allocated memory is still 54.5 MB. Free memory was 34.7 MB in the beginning and 37.0 MB in the end (delta: -2.3 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:35:46,017 INFO L168 Benchmark]: Witness Printer took 6.46 ms. Allocated memory is still 54.5 MB. Free memory was 37.0 MB in the beginning and 36.8 MB in the end (delta: 248.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:35:46,022 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40 ms. Allocated memory is still 44.0 MB. Free memory was 23.5 MB in the beginning and 23.5 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 352.69 ms. Allocated memory is still 54.5 MB. Free memory was 30.1 MB in the beginning and 33.9 MB in the end (delta: -3.8 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.80 ms. Allocated memory is still 54.5 MB. Free memory was 33.9 MB in the beginning and 32.6 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.99 ms. Allocated memory is still 54.5 MB. Free memory was 32.5 MB in the beginning and 31.6 MB in the end (delta: 823.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 338.10 ms. Allocated memory is still 54.5 MB. Free memory was 31.5 MB in the beginning and 35.1 MB in the end (delta: -3.6 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 320.44 ms. Allocated memory is still 54.5 MB. Free memory was 34.7 MB in the beginning and 37.0 MB in the end (delta: -2.3 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. * Witness Printer took 6.46 ms. Allocated memory is still 54.5 MB. Free memory was 37.0 MB in the beginning and 36.8 MB in the end (delta: 248.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15, overapproximation of someBinaryArithmeticFLOAToperation at line 13. Possible FailurePath: [L10] float x,y,r; [L11] x = 77617.f [L12] y = 33096.f [L13] r = 333.75f * y*y*y*y*y*y + x*x * (11.0f * x*x*y*y - y*y*y*y*y*y - 121.0f * y*y*y*y - 2.0f) + 5.5f * y*y*y*y*y*y*y*y + x / (2.f * y) [L6] COND TRUE !(cond) [L3] __assert_fail("0", "Rump_float.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s 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 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-5485861 [2020-10-25 21:35:48,578 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 21:35:48,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 21:35:48,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 21:35:48,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 21:35:48,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 21:35:48,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 21:35:48,664 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 21:35:48,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 21:35:48,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 21:35:48,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 21:35:48,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 21:35:48,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 21:35:48,685 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 21:35:48,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 21:35:48,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 21:35:48,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 21:35:48,693 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 21:35:48,697 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 21:35:48,708 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 21:35:48,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 21:35:48,713 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 21:35:48,715 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 21:35:48,718 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 21:35:48,727 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 21:35:48,727 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 21:35:48,728 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 21:35:48,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 21:35:48,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 21:35:48,732 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 21:35:48,733 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 21:35:48,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 21:35:48,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 21:35:48,737 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 21:35:48,738 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 21:35:48,739 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 21:35:48,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 21:35:48,743 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 21:35:48,743 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 21:35:48,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 21:35:48,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 21:35:48,748 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-25 21:35:48,805 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 21:35:48,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 21:35:48,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 21:35:48,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 21:35:48,810 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 21:35:48,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 21:35:48,810 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 21:35:48,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 21:35:48,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 21:35:48,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 21:35:48,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 21:35:48,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 21:35:48,813 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-25 21:35:48,814 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-25 21:35:48,814 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 21:35:48,814 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 21:35:48,814 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 21:35:48,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 21:35:48,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 21:35:48,815 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 21:35:48,816 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 21:35:48,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 21:35:48,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:35:48,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 21:35:48,817 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 21:35:48,817 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 21:35:48,817 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-25 21:35:48,818 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-25 21:35:48,818 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 21:35:48,818 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 21:35:48,818 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-25 21:35:48,818 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14bbb74942280ceabf9fcd57c23c432d4c6462f0 [2020-10-25 21:35:49,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 21:35:49,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 21:35:49,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 21:35:49,350 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 21:35:49,350 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 21:35:49,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/Rump_float.c [2020-10-25 21:35:49,445 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fea1a76e4/2dda154732174bf8828e3bc83c01c5cb/FLAG4c1672ab7 [2020-10-25 21:35:50,084 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 21:35:50,084 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/Rump_float.c [2020-10-25 21:35:50,093 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fea1a76e4/2dda154732174bf8828e3bc83c01c5cb/FLAG4c1672ab7 [2020-10-25 21:35:50,449 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fea1a76e4/2dda154732174bf8828e3bc83c01c5cb [2020-10-25 21:35:50,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 21:35:50,464 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 21:35:50,469 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 21:35:50,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 21:35:50,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 21:35:50,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:35:50" (1/1) ... [2020-10-25 21:35:50,481 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@284c8b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:50, skipping insertion in model container [2020-10-25 21:35:50,481 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 09:35:50" (1/1) ... [2020-10-25 21:35:50,491 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 21:35:50,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 21:35:50,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:35:50,763 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 21:35:50,784 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 21:35:50,803 INFO L208 MainTranslator]: Completed translation [2020-10-25 21:35:50,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:50 WrapperNode [2020-10-25 21:35:50,804 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 21:35:50,806 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 21:35:50,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 21:35:50,806 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 21:35:50,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:50" (1/1) ... [2020-10-25 21:35:50,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:50" (1/1) ... [2020-10-25 21:35:50,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 21:35:50,849 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 21:35:50,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 21:35:50,849 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 21:35:50,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:50" (1/1) ... [2020-10-25 21:35:50,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:50" (1/1) ... [2020-10-25 21:35:50,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:50" (1/1) ... [2020-10-25 21:35:50,864 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:50" (1/1) ... [2020-10-25 21:35:50,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:50" (1/1) ... [2020-10-25 21:35:50,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:50" (1/1) ... [2020-10-25 21:35:50,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:50" (1/1) ... [2020-10-25 21:35:50,880 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 21:35:50,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 21:35:50,882 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 21:35:50,882 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 21:35:50,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 21:35:50,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 21:35:50,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 21:35:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-25 21:35:50,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 21:35:53,654 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 21:35:53,655 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-25 21:35:53,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:35:53 BoogieIcfgContainer [2020-10-25 21:35:53,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 21:35:53,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 21:35:53,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 21:35:53,664 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 21:35:53,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 09:35:50" (1/3) ... [2020-10-25 21:35:53,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b71c242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:35:53, skipping insertion in model container [2020-10-25 21:35:53,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 09:35:50" (2/3) ... [2020-10-25 21:35:53,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b71c242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:35:53, skipping insertion in model container [2020-10-25 21:35:53,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:35:53" (3/3) ... [2020-10-25 21:35:53,669 INFO L111 eAbstractionObserver]: Analyzing ICFG Rump_float.c [2020-10-25 21:35:53,683 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 21:35:53,690 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-25 21:35:53,705 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-25 21:35:53,755 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 21:35:53,755 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 21:35:53,755 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 21:35:53,756 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 21:35:53,756 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 21:35:53,756 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 21:35:53,756 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 21:35:53,757 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 21:35:53,770 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-10-25 21:35:53,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-25 21:35:53,775 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 21:35:53,776 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-25 21:35:53,776 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 21:35:53,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 21:35:53,782 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-10-25 21:35:53,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-25 21:35:53,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1051563078] [2020-10-25 21:35:53,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-25 21:35:55,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 21:35:55,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-25 21:35:55,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 21:35:55,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:35:55,768 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-25 21:35:57,927 WARN L838 $PredicateComparison]: unable to prove that (fp.geq (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode 77617.0)) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode 2.0)) (.cse0 ((_ to_fp 8 24) c_currentRoundingMode 33096.0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1335.0 4.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse1 .cse1) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 11.0) .cse1) .cse1) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 121.0) .cse0) .cse0) .cse0) .cse0)) .cse2))) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 11.0 2.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.div c_currentRoundingMode .cse1 (fp.mul c_currentRoundingMode .cse2 .cse0)))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) is different from false [2020-10-25 21:36:00,063 WARN L860 $PredicateComparison]: unable to prove that (fp.geq (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode 77617.0)) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode 2.0)) (.cse0 ((_ to_fp 8 24) c_currentRoundingMode 33096.0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1335.0 4.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse1 .cse1) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 11.0) .cse1) .cse1) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 121.0) .cse0) .cse0) .cse0) .cse0)) .cse2))) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 11.0 2.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.div c_currentRoundingMode .cse1 (fp.mul c_currentRoundingMode .cse2 .cse0)))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) is different from true [2020-10-25 21:36:00,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 21:36:00,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1051563078] [2020-10-25 21:36:00,068 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-25 21:36:00,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-25 21:36:00,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420274662] [2020-10-25 21:36:00,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-25 21:36:00,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-25 21:36:00,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-25 21:36:00,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=12, Unknown=2, NotChecked=6, Total=30 [2020-10-25 21:36:00,093 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 6 states. [2020-10-25 21:36:02,267 WARN L860 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (fp.geq (let ((.cse1 ((_ to_fp 8 24) c_currentRoundingMode 77617.0)) (.cse2 ((_ to_fp 8 24) c_currentRoundingMode 2.0)) (.cse0 ((_ to_fp 8 24) c_currentRoundingMode 33096.0))) (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 1335.0 4.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse1 .cse1) (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 11.0) .cse1) .cse1) .cse0) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 121.0) .cse0) .cse0) .cse0) .cse0)) .cse2))) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 11.0 2.0)) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0) .cse0)) (fp.div c_currentRoundingMode .cse1 (fp.mul c_currentRoundingMode .cse2 .cse0)))) ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32)))) is different from true [2020-10-25 21:36:02,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 21:36:02,291 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-10-25 21:36:02,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 21:36:02,296 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2020-10-25 21:36:02,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 21:36:02,307 INFO L225 Difference]: With dead ends: 14 [2020-10-25 21:36:02,307 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 21:36:02,315 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=12, Invalid=13, Unknown=3, NotChecked=14, Total=42 [2020-10-25 21:36:02,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 21:36:02,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 21:36:02,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 21:36:02,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 21:36:02,348 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-10-25 21:36:02,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 21:36:02,348 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 21:36:02,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-25 21:36:02,350 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 21:36:02,350 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 21:36:02,563 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-25 21:36:02,567 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 21:36:02,621 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 21:36:02,621 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 21:36:02,621 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 21:36:02,621 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 21:36:02,622 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 21:36:02,622 INFO L270 CegarLoopResult]: At program point L16(lines 8 17) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2020-10-25 21:36:02,622 INFO L274 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-10-25 21:36:02,622 INFO L274 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-10-25 21:36:02,622 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-25 21:36:02,623 INFO L270 CegarLoopResult]: At program point L6-3(line 6) the Hoare annotation is: (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) [2020-10-25 21:36:02,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:36:02 BoogieIcfgContainer [2020-10-25 21:36:02,640 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 21:36:02,641 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 21:36:02,641 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 21:36:02,641 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 21:36:02,642 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:35:53" (3/4) ... [2020-10-25 21:36:02,646 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 21:36:02,658 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-25 21:36:02,659 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-25 21:36:02,659 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-25 21:36:02,659 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 21:36:02,701 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 21:36:02,701 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 21:36:02,704 INFO L168 Benchmark]: Toolchain (without parser) took 12245.02 ms. Allocated memory is still 54.5 MB. Free memory was 31.8 MB in the beginning and 33.5 MB in the end (delta: -1.7 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-10-25 21:36:02,705 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 44.0 MB. Free memory was 23.7 MB in the beginning and 23.6 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:36:02,706 INFO L168 Benchmark]: CACSL2BoogieTranslator took 335.78 ms. Allocated memory is still 54.5 MB. Free memory was 31.1 MB in the beginning and 34.4 MB in the end (delta: -3.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2020-10-25 21:36:02,707 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.89 ms. Allocated memory is still 54.5 MB. Free memory was 34.4 MB in the beginning and 32.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-25 21:36:02,708 INFO L168 Benchmark]: Boogie Preprocessor took 32.19 ms. Allocated memory is still 54.5 MB. Free memory was 32.9 MB in the beginning and 31.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 21:36:02,709 INFO L168 Benchmark]: RCFGBuilder took 2775.31 ms. Allocated memory is still 54.5 MB. Free memory was 31.6 MB in the beginning and 34.3 MB in the end (delta: -2.7 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-10-25 21:36:02,709 INFO L168 Benchmark]: TraceAbstraction took 8981.19 ms. Allocated memory is still 54.5 MB. Free memory was 33.9 MB in the beginning and 35.9 MB in the end (delta: -2.0 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2020-10-25 21:36:02,710 INFO L168 Benchmark]: Witness Printer took 60.68 ms. Allocated memory is still 54.5 MB. Free memory was 35.9 MB in the beginning and 33.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 21:36:02,715 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 44.0 MB. Free memory was 23.7 MB in the beginning and 23.6 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 335.78 ms. Allocated memory is still 54.5 MB. Free memory was 31.1 MB in the beginning and 34.4 MB in the end (delta: -3.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.89 ms. Allocated memory is still 54.5 MB. Free memory was 34.4 MB in the beginning and 32.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.19 ms. Allocated memory is still 54.5 MB. Free memory was 32.9 MB in the beginning and 31.7 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 2775.31 ms. Allocated memory is still 54.5 MB. Free memory was 31.6 MB in the beginning and 34.3 MB in the end (delta: -2.7 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 8981.19 ms. Allocated memory is still 54.5 MB. Free memory was 33.9 MB in the beginning and 35.9 MB in the end (delta: -2.0 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. * Witness Printer took 60.68 ms. Allocated memory is still 54.5 MB. Free memory was 35.9 MB in the beginning and 33.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 8 SDslu, 4 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 10 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 618 SizeOfPredicates, 6 NumberOfNonLiveVariables, 29 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...