./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1052b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1052b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer --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 0ab668a4edc73f54b8b6bd4c39a3d5b65a5c7a43 ................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1052b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer --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 0ab668a4edc73f54b8b6bd4c39a3d5b65a5c7a43 ........................................................................................................................................................................................................................................................................................................................................................................ 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-a4ecdab [2020-11-29 21:33:12,182 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:33:12,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:33:12,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:33:12,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:33:12,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:33:12,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:33:12,243 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:33:12,245 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:33:12,251 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:33:12,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:33:12,254 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:33:12,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:33:12,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:33:12,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:33:12,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:33:12,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:33:12,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:33:12,271 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:33:12,278 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:33:12,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:33:12,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:33:12,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:33:12,284 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:33:12,287 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:33:12,287 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:33:12,288 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:33:12,289 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:33:12,290 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:33:12,291 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:33:12,291 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:33:12,292 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:33:12,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:33:12,294 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:33:12,295 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:33:12,295 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:33:12,296 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:33:12,296 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:33:12,297 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:33:12,298 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:33:12,298 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:33:12,299 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 21:33:12,324 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:33:12,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:33:12,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:33:12,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:33:12,326 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:33:12,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:33:12,327 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:33:12,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 21:33:12,327 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:33:12,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:33:12,328 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 21:33:12,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 21:33:12,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 21:33:12,329 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:33:12,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:33:12,329 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:33:12,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 21:33:12,330 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:33:12,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:33:12,330 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 21:33:12,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 21:33:12,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:33:12,331 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:33:12,331 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 21:33:12,331 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 21:33:12,332 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 21:33:12,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 21:33:12,332 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 21:33:12,332 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:33:12,332 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:/tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ab668a4edc73f54b8b6bd4c39a3d5b65a5c7a43 [2020-11-29 21:33:12,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:33:12,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:33:12,588 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:33:12,590 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:33:12,591 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:33:12,593 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1052b.c [2020-11-29 21:33:12,669 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer/data/c0aeaa5ca/28b94c87477342808087c611f5f388a0/FLAGe791eed0f [2020-11-29 21:33:13,135 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:33:13,136 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/sv-benchmarks/c/float-newlib/double_req_bl_1052b.c [2020-11-29 21:33:13,148 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer/data/c0aeaa5ca/28b94c87477342808087c611f5f388a0/FLAGe791eed0f [2020-11-29 21:33:13,512 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer/data/c0aeaa5ca/28b94c87477342808087c611f5f388a0 [2020-11-29 21:33:13,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:33:13,516 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:33:13,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:33:13,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:33:13,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:33:13,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:33:13" (1/1) ... [2020-11-29 21:33:13,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22390f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:13, skipping insertion in model container [2020-11-29 21:33:13,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:33:13" (1/1) ... [2020-11-29 21:33:13,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:33:13,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:33:13,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:33:13,778 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:33:13,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:33:13,824 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:33:13,825 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:13 WrapperNode [2020-11-29 21:33:13,825 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:33:13,826 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:33:13,826 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:33:13,826 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:33:13,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:13" (1/1) ... [2020-11-29 21:33:13,842 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:13" (1/1) ... [2020-11-29 21:33:13,866 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:33:13,867 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:33:13,867 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:33:13,867 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:33:13,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:13" (1/1) ... [2020-11-29 21:33:13,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:13" (1/1) ... [2020-11-29 21:33:13,878 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:13" (1/1) ... [2020-11-29 21:33:13,879 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:13" (1/1) ... [2020-11-29 21:33:13,887 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:13" (1/1) ... [2020-11-29 21:33:13,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:13" (1/1) ... [2020-11-29 21:33:13,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:13" (1/1) ... [2020-11-29 21:33:13,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:33:13,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:33:13,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:33:13,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:33:13,899 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer/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 [2020-11-29 21:33:13,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 21:33:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:33:13,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-29 21:33:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 21:33:13,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-29 21:33:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:33:13,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:33:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 21:33:13,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 21:33:14,617 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:33:14,617 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-29 21:33:14,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:33:14 BoogieIcfgContainer [2020-11-29 21:33:14,619 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:33:14,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 21:33:14,620 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 21:33:14,624 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 21:33:14,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 09:33:13" (1/3) ... [2020-11-29 21:33:14,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:33:14, skipping insertion in model container [2020-11-29 21:33:14,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:13" (2/3) ... [2020-11-29 21:33:14,625 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c5100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:33:14, skipping insertion in model container [2020-11-29 21:33:14,625 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:33:14" (3/3) ... [2020-11-29 21:33:14,626 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052b.c [2020-11-29 21:33:14,637 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 21:33:14,641 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 21:33:14,655 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 21:33:14,678 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 21:33:14,679 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 21:33:14,679 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 21:33:14,679 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:33:14,679 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:33:14,679 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 21:33:14,679 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:33:14,679 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 21:33:14,692 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-11-29 21:33:14,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 21:33:14,697 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:33:14,698 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:33:14,698 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:33:14,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:33:14,704 INFO L82 PathProgramCache]: Analyzing trace with hash 658478814, now seen corresponding path program 1 times [2020-11-29 21:33:14,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:33:14,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776154967] [2020-11-29 21:33:14,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:33:14,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:33:14,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:33:14,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776154967] [2020-11-29 21:33:14,884 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:33:14,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 21:33:14,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641701819] [2020-11-29 21:33:14,889 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 21:33:14,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:33:14,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 21:33:14,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 21:33:14,908 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-11-29 21:33:14,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:33:14,931 INFO L93 Difference]: Finished difference Result 73 states and 115 transitions. [2020-11-29 21:33:14,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 21:33:14,933 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-11-29 21:33:14,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:33:14,951 INFO L225 Difference]: With dead ends: 73 [2020-11-29 21:33:14,951 INFO L226 Difference]: Without dead ends: 34 [2020-11-29 21:33:14,956 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 [2020-11-29 21:33:14,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-29 21:33:14,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-29 21:33:14,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-29 21:33:14,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2020-11-29 21:33:14,997 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 13 [2020-11-29 21:33:14,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:33:14,997 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2020-11-29 21:33:14,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 21:33:14,998 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-11-29 21:33:14,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 21:33:15,000 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:33:15,000 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:33:15,000 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 21:33:15,000 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:33:15,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:33:15,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1562173395, now seen corresponding path program 1 times [2020-11-29 21:33:15,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:33:15,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423698119] [2020-11-29 21:33:15,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:33:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:33:15,181 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:33:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:33:15,284 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:33:15,328 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:33:15,329 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 21:33:15,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 21:33:15,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 09:33:15 BoogieIcfgContainer [2020-11-29 21:33:15,379 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 21:33:15,380 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:33:15,380 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:33:15,381 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:33:15,381 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:33:14" (3/4) ... [2020-11-29 21:33:15,384 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 21:33:15,384 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:33:15,387 INFO L168 Benchmark]: Toolchain (without parser) took 1869.40 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 64.0 MB in the beginning and 75.1 MB in the end (delta: -11.1 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2020-11-29 21:33:15,388 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 96.5 MB. Free memory was 53.2 MB in the beginning and 53.2 MB in the end (delta: 34.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:33:15,389 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.52 ms. Allocated memory is still 96.5 MB. Free memory was 64.0 MB in the beginning and 71.4 MB in the end (delta: -7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 21:33:15,390 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.26 ms. Allocated memory is still 96.5 MB. Free memory was 71.4 MB in the beginning and 69.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:33:15,391 INFO L168 Benchmark]: Boogie Preprocessor took 30.03 ms. Allocated memory is still 96.5 MB. Free memory was 69.4 MB in the beginning and 68.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:33:15,392 INFO L168 Benchmark]: RCFGBuilder took 721.46 ms. Allocated memory is still 96.5 MB. Free memory was 68.1 MB in the beginning and 45.4 MB in the end (delta: 22.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:33:15,393 INFO L168 Benchmark]: TraceAbstraction took 758.77 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 45.0 MB in the beginning and 75.6 MB in the end (delta: -30.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:33:15,395 INFO L168 Benchmark]: Witness Printer took 4.54 ms. Allocated memory is still 117.4 MB. Free memory was 75.6 MB in the beginning and 75.1 MB in the end (delta: 568.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:33:15,406 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 96.5 MB. Free memory was 53.2 MB in the beginning and 53.2 MB in the end (delta: 34.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 303.52 ms. Allocated memory is still 96.5 MB. Free memory was 64.0 MB in the beginning and 71.4 MB in the end (delta: -7.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.26 ms. Allocated memory is still 96.5 MB. Free memory was 71.4 MB in the beginning and 69.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.03 ms. Allocated memory is still 96.5 MB. Free memory was 69.4 MB in the beginning and 68.1 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 721.46 ms. Allocated memory is still 96.5 MB. Free memory was 68.1 MB in the beginning and 45.4 MB in the end (delta: 22.7 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 758.77 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 45.0 MB in the beginning and 75.6 MB in the end (delta: -30.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.54 ms. Allocated memory is still 117.4 MB. Free memory was 75.6 MB in the beginning and 75.1 MB in the end (delta: 568.6 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 shiftRight at line 39, overapproximation of bitwiseOr at line 91, overapproximation of someBinaryArithmeticDOUBLEoperation at line 103, overapproximation of bitwiseAnd at line 90. Possible FailurePath: [L16] static const double huge_floor = 1.0e300; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L103] double x = -1.0 / 0.0; [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; VAL [huge_floor=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_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L28] COND TRUE j0 < 20 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L29] COND FALSE !(j0 < 0) [L39] i = (0x000fffff) >> j0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L40] COND TRUE ((i0 & i) | i1) == 0 [L41] return x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L104] double res = floor_double(x); [L83] __int32_t hx, lx; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L85] ieee_double_shape_type ew_u; [L86] ew_u.value = (x) [L87] EXPR ew_u.parts.msw [L87] (hx) = ew_u.parts.msw [L88] EXPR ew_u.parts.lsw [L88] (lx) = ew_u.parts.lsw [L90] hx &= 0x7fffffff [L91] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L92] hx = 0x7ff00000 - hx [L93] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L107] COND TRUE !isinf_double(res) [L3] __assert_fail("0", "double_req_bl_1052b.c", 3, "reach_error") VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, 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=38occurred 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-a4ecdab [2020-11-29 21:33:17,793 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-11-29 21:33:17,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:33:17,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:33:17,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:33:17,925 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:33:17,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:33:17,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:33:17,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:33:17,928 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:33:17,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:33:17,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:33:17,931 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:33:17,932 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 21:33:17,975 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:33:17,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:33:17,978 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:33:17,979 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:33:17,979 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:33:17,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:33:17,980 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:33:17,980 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:33:17,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:33:17,980 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 21:33:17,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 21:33:17,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 21:33:17,982 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 21:33:17,982 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 21:33:17,982 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:33:17,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:33:17,983 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:33:17,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 21:33:17,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:33:17,983 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:33:17,983 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 21:33:17,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 21:33:17,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:33:17,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:33:17,984 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 21:33:17,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 21:33:17,985 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 21:33:17,985 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 21:33:17,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 21:33:17,985 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:33:17,986 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 21:33:17,986 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:/tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ab668a4edc73f54b8b6bd4c39a3d5b65a5c7a43 [2020-11-29 21:33:18,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:33:18,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:33:18,403 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:33:18,405 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:33:18,406 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:33:18,407 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1052b.c [2020-11-29 21:33:18,486 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer/data/076592175/2f81b1eb34234339b01a64a057f52985/FLAG04f7d5fa4 [2020-11-29 21:33:18,977 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:33:18,993 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/sv-benchmarks/c/float-newlib/double_req_bl_1052b.c [2020-11-29 21:33:19,001 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer/data/076592175/2f81b1eb34234339b01a64a057f52985/FLAG04f7d5fa4 [2020-11-29 21:33:19,349 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer/data/076592175/2f81b1eb34234339b01a64a057f52985 [2020-11-29 21:33:19,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:33:19,354 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:33:19,359 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:33:19,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:33:19,363 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:33:19,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:33:19" (1/1) ... [2020-11-29 21:33:19,371 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f055a83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:19, skipping insertion in model container [2020-11-29 21:33:19,372 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:33:19" (1/1) ... [2020-11-29 21:33:19,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:33:19,405 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:33:19,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:33:19,659 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:33:19,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:33:19,747 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:33:19,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:19 WrapperNode [2020-11-29 21:33:19,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:33:19,749 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:33:19,749 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:33:19,751 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:33:19,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:19" (1/1) ... [2020-11-29 21:33:19,781 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:19" (1/1) ... [2020-11-29 21:33:19,817 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:33:19,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:33:19,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:33:19,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:33:19,827 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:19" (1/1) ... [2020-11-29 21:33:19,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:19" (1/1) ... [2020-11-29 21:33:19,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:19" (1/1) ... [2020-11-29 21:33:19,846 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:19" (1/1) ... [2020-11-29 21:33:19,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:19" (1/1) ... [2020-11-29 21:33:19,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:19" (1/1) ... [2020-11-29 21:33:19,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:19" (1/1) ... [2020-11-29 21:33:19,886 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:33:19,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:33:19,891 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:33:19,891 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:33:19,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer/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 [2020-11-29 21:33:19,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-29 21:33:19,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-29 21:33:19,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 21:33:19,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:33:19,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 21:33:19,963 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:33:19,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:33:19,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 21:33:19,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 21:33:21,195 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:33:21,195 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-29 21:33:21,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:33:21 BoogieIcfgContainer [2020-11-29 21:33:21,197 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:33:21,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 21:33:21,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 21:33:21,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 21:33:21,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 09:33:19" (1/3) ... [2020-11-29 21:33:21,202 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717f8c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:33:21, skipping insertion in model container [2020-11-29 21:33:21,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:33:19" (2/3) ... [2020-11-29 21:33:21,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@717f8c96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:33:21, skipping insertion in model container [2020-11-29 21:33:21,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:33:21" (3/3) ... [2020-11-29 21:33:21,221 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052b.c [2020-11-29 21:33:21,231 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 21:33:21,235 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 21:33:21,245 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 21:33:21,267 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 21:33:21,267 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 21:33:21,267 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 21:33:21,267 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:33:21,267 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:33:21,267 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 21:33:21,268 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:33:21,268 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 21:33:21,279 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-11-29 21:33:21,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 21:33:21,284 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:33:21,284 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:33:21,284 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:33:21,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:33:21,290 INFO L82 PathProgramCache]: Analyzing trace with hash 658478814, now seen corresponding path program 1 times [2020-11-29 21:33:21,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:33:21,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1469956978] [2020-11-29 21:33:21,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer/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 [2020-11-29 21:33:21,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:33:21,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 21:33:21,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:33:21,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:33:21,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 21:33:21,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:33:21,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1469956978] [2020-11-29 21:33:21,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:33:21,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 21:33:21,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318885042] [2020-11-29 21:33:21,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 21:33:21,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 21:33:21,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 21:33:21,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 21:33:21,482 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-11-29 21:33:21,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:33:21,505 INFO L93 Difference]: Finished difference Result 73 states and 115 transitions. [2020-11-29 21:33:21,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 21:33:21,506 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2020-11-29 21:33:21,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:33:21,514 INFO L225 Difference]: With dead ends: 73 [2020-11-29 21:33:21,515 INFO L226 Difference]: Without dead ends: 34 [2020-11-29 21:33:21,517 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 [2020-11-29 21:33:21,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-29 21:33:21,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-29 21:33:21,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-29 21:33:21,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2020-11-29 21:33:21,545 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 13 [2020-11-29 21:33:21,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:33:21,545 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2020-11-29 21:33:21,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 21:33:21,546 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2020-11-29 21:33:21,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 21:33:21,546 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:33:21,547 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:33:21,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 21:33:21,750 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:33:21,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:33:21,750 INFO L82 PathProgramCache]: Analyzing trace with hash -1562173395, now seen corresponding path program 1 times [2020-11-29 21:33:21,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:33:21,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1667708631] [2020-11-29 21:33:21,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer/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 [2020-11-29 21:33:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:33:21,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 21:33:21,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:33:22,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:33:22,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 21:33:22,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 21:33:22,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1667708631] [2020-11-29 21:33:22,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:33:22,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-29 21:33:22,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056105694] [2020-11-29 21:33:22,248 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 21:33:22,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 21:33:22,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 21:33:22,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-29 21:33:22,250 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand 8 states. [2020-11-29 21:33:22,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:33:22,555 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2020-11-29 21:33:22,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 21:33:22,558 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-11-29 21:33:22,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:33:22,559 INFO L225 Difference]: With dead ends: 42 [2020-11-29 21:33:22,559 INFO L226 Difference]: Without dead ends: 16 [2020-11-29 21:33:22,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-29 21:33:22,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-29 21:33:22,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-29 21:33:22,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-29 21:33:22,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-11-29 21:33:22,565 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 15 [2020-11-29 21:33:22,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:33:22,565 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-11-29 21:33:22,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 21:33:22,565 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-11-29 21:33:22,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 21:33:22,566 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:33:22,566 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:33:22,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 21:33:22,781 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:33:22,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:33:22,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1582346339, now seen corresponding path program 1 times [2020-11-29 21:33:22,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:33:22,782 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [874188627] [2020-11-29 21:33:22,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer/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 [2020-11-29 21:33:23,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:33:23,073 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:33:23,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:33:23,235 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:33:23,290 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-29 21:33:23,291 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 21:33:23,491 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 21:33:23,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 09:33:23 BoogieIcfgContainer [2020-11-29 21:33:23,534 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 21:33:23,535 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:33:23,535 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:33:23,535 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:33:23,536 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:33:21" (3/4) ... [2020-11-29 21:33:23,537 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 21:33:23,588 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b8c0ba54-b198-4742-ad85-1a6e332ac8f6/bin/uautomizer/witness.graphml [2020-11-29 21:33:23,588 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:33:23,590 INFO L168 Benchmark]: Toolchain (without parser) took 4235.50 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.4 MB in the beginning and 31.0 MB in the end (delta: -4.6 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2020-11-29 21:33:23,591 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 50.3 MB. Free memory was 32.0 MB in the beginning and 32.0 MB in the end (delta: 25.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:33:23,592 INFO L168 Benchmark]: CACSL2BoogieTranslator took 388.93 ms. Allocated memory is still 50.3 MB. Free memory was 26.2 MB in the beginning and 30.3 MB in the end (delta: -4.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2020-11-29 21:33:23,593 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.34 ms. Allocated memory is still 50.3 MB. Free memory was 30.1 MB in the beginning and 28.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 21:33:23,593 INFO L168 Benchmark]: Boogie Preprocessor took 67.62 ms. Allocated memory is still 50.3 MB. Free memory was 28.3 MB in the beginning and 26.6 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:33:23,594 INFO L168 Benchmark]: RCFGBuilder took 1309.77 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.4 MB in the beginning and 27.5 MB in the end (delta: -1.1 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2020-11-29 21:33:23,595 INFO L168 Benchmark]: TraceAbstraction took 2336.03 ms. Allocated memory is still 60.8 MB. Free memory was 27.1 MB in the beginning and 34.0 MB in the end (delta: -6.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:33:23,595 INFO L168 Benchmark]: Witness Printer took 53.66 ms. Allocated memory is still 60.8 MB. Free memory was 34.0 MB in the beginning and 31.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 21:33:23,599 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 50.3 MB. Free memory was 32.0 MB in the beginning and 32.0 MB in the end (delta: 25.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 388.93 ms. Allocated memory is still 50.3 MB. Free memory was 26.2 MB in the beginning and 30.3 MB in the end (delta: -4.1 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 68.34 ms. Allocated memory is still 50.3 MB. Free memory was 30.1 MB in the beginning and 28.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 67.62 ms. Allocated memory is still 50.3 MB. Free memory was 28.3 MB in the beginning and 26.6 MB in the end (delta: 1.7 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1309.77 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.4 MB in the beginning and 27.5 MB in the end (delta: -1.1 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2336.03 ms. Allocated memory is still 60.8 MB. Free memory was 27.1 MB in the beginning and 34.0 MB in the end (delta: -6.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 53.66 ms. Allocated memory is still 60.8 MB. Free memory was 34.0 MB in the beginning and 31.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L16] static const double huge_floor = 1.0e300; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L103] double x = -1.0 / 0.0; [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; VAL [huge_floor=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_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L28] COND FALSE !(j0 < 20) VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L49] COND TRUE j0 > 51 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L50] COND TRUE j0 == 0x400 [L51] return x + x; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L104] double res = floor_double(x); [L83] __int32_t hx, lx; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L85] ieee_double_shape_type ew_u; [L86] ew_u.value = (x) [L87] EXPR ew_u.parts.msw [L87] (hx) = ew_u.parts.msw [L88] EXPR ew_u.parts.lsw [L88] (lx) = ew_u.parts.lsw [L90] hx &= 0x7fffffff [L91] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L92] hx = 0x7ff00000 - hx [L93] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L107] COND TRUE !isinf_double(res) [L3] __assert_fail("0", "double_req_bl_1052b.c", 3, "reach_error") VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, 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, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 0.3s 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...