./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/sqrt_Newton_pseudoconstant.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_Newton_pseudoconstant.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6126c292b79b2663ac597229a34ee56f0c149d9383459c587f75b8bcd2abff05 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:33:15,244 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:33:15,247 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:33:15,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:33:15,309 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:33:15,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:33:15,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:33:15,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:33:15,324 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:33:15,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:33:15,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:33:15,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:33:15,334 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:33:15,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:33:15,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:33:15,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:33:15,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:33:15,351 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:33:15,353 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:33:15,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:33:15,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:33:15,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:33:15,369 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:33:15,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:33:15,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:33:15,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:33:15,380 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:33:15,381 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:33:15,382 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:33:15,383 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:33:15,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:33:15,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:33:15,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:33:15,387 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:33:15,388 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:33:15,389 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:33:15,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:33:15,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:33:15,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:33:15,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:33:15,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:33:15,393 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 05:33:15,418 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:33:15,419 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:33:15,420 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:33:15,420 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:33:15,420 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:33:15,421 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:33:15,421 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:33:15,421 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:33:15,421 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:33:15,422 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:33:15,422 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:33:15,422 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:33:15,422 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:33:15,423 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:33:15,423 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:33:15,424 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:33:15,424 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:33:15,424 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:33:15,425 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:33:15,425 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:33:15,425 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:33:15,425 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:33:15,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:33:15,426 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:33:15,426 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:33:15,426 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:33:15,427 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:33:15,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:33:15,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:33:15,431 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:33:15,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:33:15,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:33:15,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:33:15,432 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:33:15,433 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:33:15,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:33:15,434 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:33:15,434 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:33:15,435 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:33:15,435 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6126c292b79b2663ac597229a34ee56f0c149d9383459c587f75b8bcd2abff05 [2021-11-03 05:33:15,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:33:15,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:33:15,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:33:15,775 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:33:15,776 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:33:15,777 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/float-benchs/sqrt_Newton_pseudoconstant.c [2021-11-03 05:33:15,859 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/data/1c3506515/02d9a4206e4a4780ae4f478554190aaf/FLAGba5a4f312 [2021-11-03 05:33:16,390 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:33:16,391 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/sv-benchmarks/c/float-benchs/sqrt_Newton_pseudoconstant.c [2021-11-03 05:33:16,398 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/data/1c3506515/02d9a4206e4a4780ae4f478554190aaf/FLAGba5a4f312 [2021-11-03 05:33:16,761 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/data/1c3506515/02d9a4206e4a4780ae4f478554190aaf [2021-11-03 05:33:16,763 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:33:16,765 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:33:16,778 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:33:16,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:33:16,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:33:16,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:33:16" (1/1) ... [2021-11-03 05:33:16,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33a69791 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:16, skipping insertion in model container [2021-11-03 05:33:16,785 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:33:16" (1/1) ... [2021-11-03 05:33:16,793 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:33:16,813 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:33:16,986 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/sv-benchmarks/c/float-benchs/sqrt_Newton_pseudoconstant.c[557,570] [2021-11-03 05:33:17,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:33:17,031 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:33:17,045 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/sv-benchmarks/c/float-benchs/sqrt_Newton_pseudoconstant.c[557,570] [2021-11-03 05:33:17,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:33:17,068 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:33:17,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:17 WrapperNode [2021-11-03 05:33:17,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:33:17,070 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:33:17,070 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:33:17,070 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:33:17,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:17" (1/1) ... [2021-11-03 05:33:17,087 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:17" (1/1) ... [2021-11-03 05:33:17,111 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:33:17,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:33:17,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:33:17,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:33:17,121 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:17" (1/1) ... [2021-11-03 05:33:17,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:17" (1/1) ... [2021-11-03 05:33:17,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:17" (1/1) ... [2021-11-03 05:33:17,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:17" (1/1) ... [2021-11-03 05:33:17,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:17" (1/1) ... [2021-11-03 05:33:17,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:17" (1/1) ... [2021-11-03 05:33:17,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:17" (1/1) ... [2021-11-03 05:33:17,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:33:17,140 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:33:17,140 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:33:17,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:33:17,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:17" (1/1) ... [2021-11-03 05:33:17,155 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:33:17,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:33:17,183 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:33:17,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:33:17,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 05:33:17,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:33:17,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:33:17,220 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:33:17,687 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:33:17,689 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-11-03 05:33:17,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:33:17 BoogieIcfgContainer [2021-11-03 05:33:17,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:33:17,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:33:17,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:33:17,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:33:17,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:33:16" (1/3) ... [2021-11-03 05:33:17,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a209e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:33:17, skipping insertion in model container [2021-11-03 05:33:17,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:17" (2/3) ... [2021-11-03 05:33:17,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a209e11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:33:17, skipping insertion in model container [2021-11-03 05:33:17,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:33:17" (3/3) ... [2021-11-03 05:33:17,706 INFO L111 eAbstractionObserver]: Analyzing ICFG sqrt_Newton_pseudoconstant.c [2021-11-03 05:33:17,711 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:33:17,712 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 05:33:17,760 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:33:17,767 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 05:33:17,768 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-03 05:33:17,782 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.6666666666666667) internal successors, (10), 7 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:17,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-03 05:33:17,788 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:33:17,788 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-03 05:33:17,789 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:33:17,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:17,796 INFO L85 PathProgramCache]: Analyzing trace with hash 86253018, now seen corresponding path program 1 times [2021-11-03 05:33:17,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 05:33:17,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598602194] [2021-11-03 05:33:17,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:17,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:33:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 05:33:17,933 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-03 05:33:17,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 05:33:17,994 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-03 05:33:17,996 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-03 05:33:17,998 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 05:33:18,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 05:33:18,005 INFO L731 BasicCegarLoop]: Path program histogram: [1] [2021-11-03 05:33:18,008 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 05:33:18,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 05:33:18 BoogieIcfgContainer [2021-11-03 05:33:18,041 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 05:33:18,044 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 05:33:18,045 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 05:33:18,045 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 05:33:18,045 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:33:17" (3/4) ... [2021-11-03 05:33:18,051 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-03 05:33:18,051 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 05:33:18,055 INFO L168 Benchmark]: Toolchain (without parser) took 1287.88 ms. Allocated memory was 96.5 MB in the beginning and 125.8 MB in the end (delta: 29.4 MB). Free memory was 61.6 MB in the beginning and 69.7 MB in the end (delta: -8.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:33:18,057 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 96.5 MB. Free memory was 67.6 MB in the beginning and 67.5 MB in the end (delta: 28.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:33:18,058 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.16 ms. Allocated memory was 96.5 MB in the beginning and 125.8 MB in the end (delta: 29.4 MB). Free memory was 61.4 MB in the beginning and 100.5 MB in the end (delta: -39.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 05:33:18,060 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.18 ms. Allocated memory is still 125.8 MB. Free memory was 100.5 MB in the beginning and 99.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:33:18,060 INFO L168 Benchmark]: Boogie Preprocessor took 27.12 ms. Allocated memory is still 125.8 MB. Free memory was 99.1 MB in the beginning and 97.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:33:18,062 INFO L168 Benchmark]: RCFGBuilder took 555.42 ms. Allocated memory is still 125.8 MB. Free memory was 97.9 MB in the beginning and 84.4 MB in the end (delta: 13.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-03 05:33:18,068 INFO L168 Benchmark]: TraceAbstraction took 343.89 ms. Allocated memory is still 125.8 MB. Free memory was 83.8 MB in the beginning and 70.1 MB in the end (delta: 13.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-03 05:33:18,069 INFO L168 Benchmark]: Witness Printer took 7.59 ms. Allocated memory is still 125.8 MB. Free memory was 70.1 MB in the beginning and 69.7 MB in the end (delta: 373.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:33:18,078 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 96.5 MB. Free memory was 67.6 MB in the beginning and 67.5 MB in the end (delta: 28.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 291.16 ms. Allocated memory was 96.5 MB in the beginning and 125.8 MB in the end (delta: 29.4 MB). Free memory was 61.4 MB in the beginning and 100.5 MB in the end (delta: -39.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.18 ms. Allocated memory is still 125.8 MB. Free memory was 100.5 MB in the beginning and 99.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.12 ms. Allocated memory is still 125.8 MB. Free memory was 99.1 MB in the beginning and 97.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 555.42 ms. Allocated memory is still 125.8 MB. Free memory was 97.9 MB in the beginning and 84.4 MB in the end (delta: 13.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 343.89 ms. Allocated memory is still 125.8 MB. Free memory was 83.8 MB in the beginning and 70.1 MB in the end (delta: 13.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 7.59 ms. Allocated memory is still 125.8 MB. Free memory was 70.1 MB in the beginning and 69.7 MB in the end (delta: 373.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 13]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticDOUBLEoperation at line 37, overapproximation of someUnaryDOUBLEoperation at line 25, overapproximation of someBinaryDOUBLEComparisonOperation at line 52. Possible FailurePath: [L15] double _EPS = 1e-6; [L42] double d, dd, r; [L43] double epsilon = 1e-8; [L45] d = 1. VAL [_EPS=1/1000000] [L45] COND TRUE d <= 20. [L47] dd = __VERIFIER_nondet_double() [L11] COND FALSE !(!cond) [L19] double xn, xnp1, residu, lsup, linf; [L20] int i, cond; [L21] COND TRUE Input <= 1.0 [L21] xn = 1.0 [L22] xnp1 = xn [L23] residu = 2.0*_EPS*(xn+xnp1) [L24] lsup = _EPS * (xn+xnp1) [L25] linf = -lsup [L26] cond = ((residu > lsup) || (residu < linf)) [L27] i = 0 VAL [_EPS=1/1000000] [L28] COND FALSE !(\read(cond)) [L37] return 1.0 / xnp1; [L50] r = SqrtR(dd) [L13] COND TRUE !(cond) VAL [_EPS=1/1000000] [L13] reach_error() VAL [_EPS=1/1000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-03 05:33:18,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_Newton_pseudoconstant.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6126c292b79b2663ac597229a34ee56f0c149d9383459c587f75b8bcd2abff05 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:33:20,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:33:20,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:33:20,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:33:20,756 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:33:20,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:33:20,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:33:20,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:33:20,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:33:20,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:33:20,780 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:33:20,781 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:33:20,782 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:33:20,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:33:20,786 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:33:20,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:33:20,788 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:33:20,789 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:33:20,791 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:33:20,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:33:20,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:33:20,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:33:20,799 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:33:20,800 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:33:20,803 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:33:20,804 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:33:20,804 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:33:20,805 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:33:20,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:33:20,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:33:20,808 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:33:20,809 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:33:20,810 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:33:20,811 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:33:20,812 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:33:20,813 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:33:20,813 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:33:20,814 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:33:20,814 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:33:20,815 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:33:20,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:33:20,817 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 05:33:20,858 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:33:20,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:33:20,860 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:33:20,860 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:33:20,861 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:33:20,861 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:33:20,861 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:33:20,861 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:33:20,861 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:33:20,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:33:20,864 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:33:20,864 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:33:20,865 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:33:20,865 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:33:20,865 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:33:20,865 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:33:20,865 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:33:20,866 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:33:20,866 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:33:20,866 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:33:20,866 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:33:20,866 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:33:20,867 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:33:20,867 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:33:20,867 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:33:20,867 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:33:20,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:33:20,868 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:33:20,868 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:33:20,868 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:33:20,869 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:33:20,869 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:33:20,869 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:33:20,869 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:33:20,870 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:33:20,870 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_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6126c292b79b2663ac597229a34ee56f0c149d9383459c587f75b8bcd2abff05 [2021-11-03 05:33:21,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:33:21,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:33:21,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:33:21,304 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:33:21,305 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:33:21,306 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/float-benchs/sqrt_Newton_pseudoconstant.c [2021-11-03 05:33:21,387 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/data/040d4276f/82f11d8df55a4204a221b9531c4df013/FLAG667400936 [2021-11-03 05:33:21,941 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:33:21,946 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/sv-benchmarks/c/float-benchs/sqrt_Newton_pseudoconstant.c [2021-11-03 05:33:21,953 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/data/040d4276f/82f11d8df55a4204a221b9531c4df013/FLAG667400936 [2021-11-03 05:33:22,309 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/data/040d4276f/82f11d8df55a4204a221b9531c4df013 [2021-11-03 05:33:22,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:33:22,321 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:33:22,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:33:22,326 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:33:22,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:33:22,330 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:33:22" (1/1) ... [2021-11-03 05:33:22,333 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a6a01d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:22, skipping insertion in model container [2021-11-03 05:33:22,333 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:33:22" (1/1) ... [2021-11-03 05:33:22,341 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:33:22,360 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:33:22,539 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/sv-benchmarks/c/float-benchs/sqrt_Newton_pseudoconstant.c[557,570] [2021-11-03 05:33:22,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:33:22,625 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:33:22,639 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/sv-benchmarks/c/float-benchs/sqrt_Newton_pseudoconstant.c[557,570] [2021-11-03 05:33:22,662 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:33:22,686 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:33:22,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:22 WrapperNode [2021-11-03 05:33:22,687 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:33:22,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:33:22,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:33:22,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:33:22,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:22" (1/1) ... [2021-11-03 05:33:22,706 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:22" (1/1) ... [2021-11-03 05:33:22,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:33:22,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:33:22,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:33:22,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:33:22,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:22" (1/1) ... [2021-11-03 05:33:22,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:22" (1/1) ... [2021-11-03 05:33:22,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:22" (1/1) ... [2021-11-03 05:33:22,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:22" (1/1) ... [2021-11-03 05:33:22,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:22" (1/1) ... [2021-11-03 05:33:22,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:22" (1/1) ... [2021-11-03 05:33:22,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:22" (1/1) ... [2021-11-03 05:33:22,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:33:22,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:33:22,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:33:22,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:33:22,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:22" (1/1) ... [2021-11-03 05:33:22,772 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:33:22,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:33:22,810 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:33:22,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:33:22,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:33:22,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:33:22,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:33:22,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:33:32,128 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:33:32,128 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-11-03 05:33:32,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:33:32 BoogieIcfgContainer [2021-11-03 05:33:32,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:33:32,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:33:32,134 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:33:32,137 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:33:32,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:33:22" (1/3) ... [2021-11-03 05:33:32,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@769f6a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:33:32, skipping insertion in model container [2021-11-03 05:33:32,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:22" (2/3) ... [2021-11-03 05:33:32,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@769f6a14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:33:32, skipping insertion in model container [2021-11-03 05:33:32,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:33:32" (3/3) ... [2021-11-03 05:33:32,156 INFO L111 eAbstractionObserver]: Analyzing ICFG sqrt_Newton_pseudoconstant.c [2021-11-03 05:33:32,162 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:33:32,162 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 05:33:32,208 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:33:32,215 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 05:33:32,216 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-03 05:33:32,230 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.5) internal successors, (24), 17 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:32,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-03 05:33:32,236 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:33:32,236 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:33:32,237 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:33:32,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:32,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1569195288, now seen corresponding path program 1 times [2021-11-03 05:33:32,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:33:32,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [320127163] [2021-11-03 05:33:32,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:32,262 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:33:32,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:33:32,266 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:33:32,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:33:33,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:33,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:33:33,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:34,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:34,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:33:34,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:34,166 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:33:34,166 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [320127163] [2021-11-03 05:33:34,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [320127163] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:34,167 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:34,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:33:34,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360101527] [2021-11-03 05:33:34,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:33:34,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:33:34,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:33:34,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:33:34,198 INFO L87 Difference]: Start difference. First operand has 18 states, 16 states have (on average 1.5) internal successors, (24), 17 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:34,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:34,215 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2021-11-03 05:33:34,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:33:34,216 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-03 05:33:34,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:34,225 INFO L225 Difference]: With dead ends: 34 [2021-11-03 05:33:34,225 INFO L226 Difference]: Without dead ends: 14 [2021-11-03 05:33:34,229 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:33:34,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-03 05:33:34,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-03 05:33:34,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:34,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2021-11-03 05:33:34,265 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 12 [2021-11-03 05:33:34,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:34,265 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2021-11-03 05:33:34,266 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:34,266 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-11-03 05:33:34,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-03 05:33:34,273 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:33:34,273 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:33:34,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:33:34,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:33:34,486 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:33:34,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:34,487 INFO L85 PathProgramCache]: Analyzing trace with hash -2049407722, now seen corresponding path program 1 times [2021-11-03 05:33:34,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:33:34,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2091275568] [2021-11-03 05:33:34,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:34,489 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:33:34,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:33:34,490 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:33:34,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:33:36,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:36,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 05:33:36,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:36,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:36,993 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:33:47,594 WARN L838 $PredicateComparison]: unable to prove that (or (let ((.cse0 (fp.add c_currentRoundingMode c_ULTIMATE.start_SqrtR_~xn~0 c_ULTIMATE.start_SqrtR_~xn~0))) (fp.gt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) .cse0) (fp.mul c_currentRoundingMode c_~_EPS~0 .cse0))) (forall ((v_ULTIMATE.start_SqrtR_~linf~0_5 (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) (fp.add c_currentRoundingMode c_ULTIMATE.start_SqrtR_~xn~0 c_ULTIMATE.start_SqrtR_~xn~0)) v_ULTIMATE.start_SqrtR_~linf~0_5))) is different from false [2021-11-03 05:33:49,664 WARN L860 $PredicateComparison]: unable to prove that (or (let ((.cse0 (fp.add c_currentRoundingMode c_ULTIMATE.start_SqrtR_~xn~0 c_ULTIMATE.start_SqrtR_~xn~0))) (fp.gt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) .cse0) (fp.mul c_currentRoundingMode c_~_EPS~0 .cse0))) (forall ((v_ULTIMATE.start_SqrtR_~linf~0_5 (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) (fp.add c_currentRoundingMode c_ULTIMATE.start_SqrtR_~xn~0 c_ULTIMATE.start_SqrtR_~xn~0)) v_ULTIMATE.start_SqrtR_~linf~0_5))) is different from true [2021-11-03 05:34:08,427 WARN L207 SmtUtils]: Spent 8.42 s on a formula simplification. DAG size of input: 15 DAG size of output: 11 [2021-11-03 05:34:19,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:34:19,099 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:34:19,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2091275568] [2021-11-03 05:34:19,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2091275568] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:34:19,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:34:19,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-03 05:34:19,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615285114] [2021-11-03 05:34:19,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 05:34:19,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:34:19,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 05:34:19,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=4, NotChecked=10, Total=56 [2021-11-03 05:34:19,104 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:34:46,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:34:46,351 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2021-11-03 05:34:46,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-03 05:34:46,603 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-03 05:34:46,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:34:46,605 INFO L225 Difference]: With dead ends: 33 [2021-11-03 05:34:46,605 INFO L226 Difference]: Without dead ends: 21 [2021-11-03 05:34:46,606 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 24.8s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=4, NotChecked=10, Total=56 [2021-11-03 05:34:46,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-03 05:34:46,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2021-11-03 05:34:46,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:34:46,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2021-11-03 05:34:46,613 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 12 [2021-11-03 05:34:46,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:34:46,614 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-11-03 05:34:46,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:34:46,614 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2021-11-03 05:34:46,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-03 05:34:46,615 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:34:46,615 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:34:46,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-03 05:34:46,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:34:46,831 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 05:34:46,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:34:46,832 INFO L85 PathProgramCache]: Analyzing trace with hash -274400360, now seen corresponding path program 1 times [2021-11-03 05:34:46,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:34:46,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1120009807] [2021-11-03 05:34:46,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:34:46,834 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:34:46,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:34:46,835 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:34:46,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:34:50,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:34:50,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-03 05:34:50,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:35:10,666 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 100000000.0)))) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse0)) (= (fp.div c_currentRoundingMode .cse0 ULTIMATE.start_SqrtR_~Input) c_ULTIMATE.start_SqrtR_~xn~0)))) (= c_~_EPS~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-03 05:35:49,074 WARN L838 $PredicateComparison]: unable to prove that (and (let ((.cse0 (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (.cse2 (fp.add c_currentRoundingMode c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0))) (fp.gt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) .cse1) .cse2) (fp.mul c_currentRoundingMode .cse1 .cse2))))) (or (and (exists ((ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (not (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (fp.add c_currentRoundingMode c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0)) ULTIMATE.start_SqrtR_~linf~0))) (not .cse0) (= c_ULTIMATE.start_SqrtR_~cond~0 (_ bv0 32))) (and (= c_ULTIMATE.start_SqrtR_~cond~0 (_ bv1 32)) (or (exists ((ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (fp.add c_currentRoundingMode c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0)) ULTIMATE.start_SqrtR_~linf~0)) .cse0)))) (= c_currentRoundingMode roundNearestTiesToEven) (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add c_currentRoundingMode .cse3 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 100000000.0)))) (= (fp.div c_currentRoundingMode .cse3 ULTIMATE.start_SqrtR_~Input) c_ULTIMATE.start_SqrtR_~xnp1~0) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse3)))))) is different from false [2021-11-03 05:35:51,145 WARN L860 $PredicateComparison]: unable to prove that (and (let ((.cse0 (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (.cse2 (fp.add c_currentRoundingMode c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0))) (fp.gt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) .cse1) .cse2) (fp.mul c_currentRoundingMode .cse1 .cse2))))) (or (and (exists ((ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (not (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (fp.add c_currentRoundingMode c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0)) ULTIMATE.start_SqrtR_~linf~0))) (not .cse0) (= c_ULTIMATE.start_SqrtR_~cond~0 (_ bv0 32))) (and (= c_ULTIMATE.start_SqrtR_~cond~0 (_ bv1 32)) (or (exists ((ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (fp.add c_currentRoundingMode c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0)) ULTIMATE.start_SqrtR_~linf~0)) .cse0)))) (= c_currentRoundingMode roundNearestTiesToEven) (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add c_currentRoundingMode .cse3 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 100000000.0)))) (= (fp.div c_currentRoundingMode .cse3 ULTIMATE.start_SqrtR_~Input) c_ULTIMATE.start_SqrtR_~xnp1~0) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse3)))))) is different from true [2021-11-03 05:36:19,571 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (not (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (fp.add c_currentRoundingMode c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0)) ULTIMATE.start_SqrtR_~linf~0))) (= c_currentRoundingMode roundNearestTiesToEven) (not (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (.cse1 (fp.add c_currentRoundingMode c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0))) (fp.gt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) .cse0) .cse1) (fp.mul c_currentRoundingMode .cse0 .cse1)))) (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add c_currentRoundingMode .cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 100000000.0)))) (= (fp.div c_currentRoundingMode .cse2 ULTIMATE.start_SqrtR_~Input) c_ULTIMATE.start_SqrtR_~xnp1~0) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse2)))))) is different from false [2021-11-03 05:36:21,645 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (not (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (fp.add c_currentRoundingMode c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0)) ULTIMATE.start_SqrtR_~linf~0))) (= c_currentRoundingMode roundNearestTiesToEven) (not (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (.cse1 (fp.add c_currentRoundingMode c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0))) (fp.gt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) .cse0) .cse1) (fp.mul c_currentRoundingMode .cse0 .cse1)))) (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add c_currentRoundingMode .cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 100000000.0)))) (= (fp.div c_currentRoundingMode .cse2 ULTIMATE.start_SqrtR_~Input) c_ULTIMATE.start_SqrtR_~xnp1~0) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse2)))))) is different from true [2021-11-03 05:36:27,489 WARN L207 SmtUtils]: Spent 5.82 s on a formula simplification that was a NOOP. DAG size: 15 [2021-11-03 05:36:33,112 WARN L207 SmtUtils]: Spent 5.62 s on a formula simplification that was a NOOP. DAG size: 8 [2021-11-03 05:36:38,795 WARN L207 SmtUtils]: Spent 5.68 s on a formula simplification that was a NOOP. DAG size: 15 [2021-11-03 05:36:44,502 WARN L207 SmtUtils]: Spent 5.71 s on a formula simplification that was a NOOP. DAG size: 15 [2021-11-03 05:36:50,192 WARN L207 SmtUtils]: Spent 5.69 s on a formula simplification that was a NOOP. DAG size: 6 [2021-11-03 05:36:55,476 WARN L207 SmtUtils]: Spent 5.28 s on a formula simplification that was a NOOP. DAG size: 8 [2021-11-03 05:36:57,936 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53)) (ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse4 (fp.div c_currentRoundingMode .cse0 ULTIMATE.start_SqrtR_~Input))) (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (.cse3 (fp.add c_currentRoundingMode .cse4 .cse4))) (let ((.cse1 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) .cse2) .cse3))) (and (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 100000000.0)))) (not (fp.gt .cse1 (fp.mul c_currentRoundingMode .cse2 .cse3))) (not (fp.lt .cse1 ULTIMATE.start_SqrtR_~linf~0)) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse0)) (= |c_ULTIMATE.start_SqrtR_#res| (fp.div c_currentRoundingMode .cse0 .cse4)))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-03 05:37:00,209 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53)) (ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse4 (fp.div c_currentRoundingMode .cse0 ULTIMATE.start_SqrtR_~Input))) (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (.cse3 (fp.add c_currentRoundingMode .cse4 .cse4))) (let ((.cse1 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) .cse2) .cse3))) (and (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 100000000.0)))) (not (fp.gt .cse1 (fp.mul c_currentRoundingMode .cse2 .cse3))) (not (fp.lt .cse1 ULTIMATE.start_SqrtR_~linf~0)) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse0)) (= |c_ULTIMATE.start_SqrtR_#res| (fp.div c_currentRoundingMode .cse0 .cse4)))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-11-03 05:37:05,948 WARN L207 SmtUtils]: Spent 5.71 s on a formula simplification that was a NOOP. DAG size: 15 [2021-11-03 05:37:14,040 WARN L207 SmtUtils]: Spent 5.67 s on a formula simplification that was a NOOP. DAG size: 15 [2021-11-03 05:37:19,698 WARN L207 SmtUtils]: Spent 5.66 s on a formula simplification that was a NOOP. DAG size: 15 [2021-11-03 05:37:25,384 WARN L207 SmtUtils]: Spent 5.68 s on a formula simplification that was a NOOP. DAG size: 8 [2021-11-03 05:37:31,053 WARN L207 SmtUtils]: Spent 5.67 s on a formula simplification that was a NOOP. DAG size: 15 [2021-11-03 05:37:36,712 WARN L207 SmtUtils]: Spent 5.66 s on a formula simplification that was a NOOP. DAG size: 9 [2021-11-03 05:37:42,470 WARN L207 SmtUtils]: Spent 5.76 s on a formula simplification that was a NOOP. DAG size: 9 [2021-11-03 05:37:48,155 WARN L207 SmtUtils]: Spent 5.68 s on a formula simplification that was a NOOP. DAG size: 6 [2021-11-03 05:37:56,315 WARN L207 SmtUtils]: Spent 5.70 s on a formula simplification that was a NOOP. DAG size: 15 [2021-11-03 05:38:04,454 WARN L207 SmtUtils]: Spent 5.69 s on a formula simplification that was a NOOP. DAG size: 15 [2021-11-03 05:38:10,257 WARN L207 SmtUtils]: Spent 5.80 s on a formula simplification that was a NOOP. DAG size: 15 [2021-11-03 05:38:15,933 WARN L207 SmtUtils]: Spent 5.67 s on a formula simplification that was a NOOP. DAG size: 8 [2021-11-03 05:38:21,653 WARN L207 SmtUtils]: Spent 5.72 s on a formula simplification that was a NOOP. DAG size: 15 [2021-11-03 05:38:26,948 WARN L207 SmtUtils]: Spent 5.29 s on a formula simplification that was a NOOP. DAG size: 10 [2021-11-03 05:38:32,627 WARN L207 SmtUtils]: Spent 5.68 s on a formula simplification that was a NOOP. DAG size: 6 [2021-11-03 05:38:40,776 WARN L207 SmtUtils]: Spent 5.71 s on a formula simplification that was a NOOP. DAG size: 15 [2021-11-03 05:38:46,527 WARN L207 SmtUtils]: Spent 5.75 s on a formula simplification that was a NOOP. DAG size: 15 [2021-11-03 05:38:52,251 WARN L207 SmtUtils]: Spent 5.72 s on a formula simplification that was a NOOP. DAG size: 8 [2021-11-03 05:38:57,939 WARN L207 SmtUtils]: Spent 5.69 s on a formula simplification that was a NOOP. DAG size: 15 [2021-11-03 05:39:03,241 WARN L207 SmtUtils]: Spent 5.30 s on a formula simplification that was a NOOP. DAG size: 10 [2021-11-03 05:39:08,946 WARN L207 SmtUtils]: Spent 5.70 s on a formula simplification that was a NOOP. DAG size: 6 [2021-11-03 05:39:14,709 WARN L207 SmtUtils]: Spent 5.76 s on a formula simplification that was a NOOP. DAG size: 15 [2021-11-03 05:39:20,470 WARN L207 SmtUtils]: Spent 5.76 s on a formula simplification that was a NOOP. DAG size: 8 [2021-11-03 05:39:26,198 WARN L207 SmtUtils]: Spent 5.73 s on a formula simplification that was a NOOP. DAG size: 15 [2021-11-03 05:39:31,897 WARN L207 SmtUtils]: Spent 5.70 s on a formula simplification that was a NOOP. DAG size: 6 [2021-11-03 05:39:37,606 WARN L207 SmtUtils]: Spent 5.71 s on a formula simplification that was a NOOP. DAG size: 10 [2021-11-03 05:39:43,312 WARN L207 SmtUtils]: Spent 5.71 s on a formula simplification that was a NOOP. DAG size: 10 [2021-11-03 05:39:49,049 WARN L207 SmtUtils]: Spent 5.69 s on a formula simplification that was a NOOP. DAG size: 15 [2021-11-03 05:39:54,737 WARN L207 SmtUtils]: Spent 5.69 s on a formula simplification that was a NOOP. DAG size: 8 [2021-11-03 05:40:00,453 WARN L207 SmtUtils]: Spent 5.71 s on a formula simplification that was a NOOP. DAG size: 15 [2021-11-03 05:40:06,179 WARN L207 SmtUtils]: Spent 5.72 s on a formula simplification that was a NOOP. DAG size: 3 [2021-11-03 05:40:11,901 WARN L207 SmtUtils]: Spent 5.72 s on a formula simplification that was a NOOP. DAG size: 10 [2021-11-03 05:40:17,610 WARN L207 SmtUtils]: Spent 5.71 s on a formula simplification that was a NOOP. DAG size: 10 [2021-11-03 05:40:23,323 WARN L207 SmtUtils]: Spent 5.71 s on a formula simplification that was a NOOP. DAG size: 9 [2021-11-03 05:40:29,033 WARN L207 SmtUtils]: Spent 5.71 s on a formula simplification that was a NOOP. DAG size: 9 [2021-11-03 05:40:34,770 WARN L207 SmtUtils]: Spent 5.74 s on a formula simplification that was a NOOP. DAG size: 3 [2021-11-03 05:40:40,536 WARN L207 SmtUtils]: Spent 5.76 s on a formula simplification that was a NOOP. DAG size: 6 [2021-11-03 05:40:42,970 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53)) (ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse7 (fp.div roundNearestTiesToEven .cse1 ULTIMATE.start_SqrtR_~Input))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse3 (fp.add roundNearestTiesToEven .cse7 .cse7))) (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse2) .cse3))) (and (not (fp.lt .cse0 ULTIMATE.start_SqrtR_~linf~0)) (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (not (fp.gt .cse0 (fp.mul roundNearestTiesToEven .cse2 .cse3))) (let ((.cse6 (fp.div roundNearestTiesToEven .cse1 .cse7))) (let ((.cse4 (fp.geq .cse6 ((_ to_fp 11 53) roundNearestTiesToEven (/ 9.0 10.0)))) (.cse5 (fp.leq .cse6 ((_ to_fp 11 53) roundNearestTiesToEven 5.0)))) (or (and (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)) (or (not .cse4) (not .cse5))) (and .cse4 .cse5 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)))))) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse1)))))))) is different from false [2021-11-03 05:40:45,248 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53)) (ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse7 (fp.div roundNearestTiesToEven .cse1 ULTIMATE.start_SqrtR_~Input))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse3 (fp.add roundNearestTiesToEven .cse7 .cse7))) (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse2) .cse3))) (and (not (fp.lt .cse0 ULTIMATE.start_SqrtR_~linf~0)) (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (not (fp.gt .cse0 (fp.mul roundNearestTiesToEven .cse2 .cse3))) (let ((.cse6 (fp.div roundNearestTiesToEven .cse1 .cse7))) (let ((.cse4 (fp.geq .cse6 ((_ to_fp 11 53) roundNearestTiesToEven (/ 9.0 10.0)))) (.cse5 (fp.leq .cse6 ((_ to_fp 11 53) roundNearestTiesToEven 5.0)))) (or (and (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)) (or (not .cse4) (not .cse5))) (and .cse4 .cse5 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)))))) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse1)))))))) is different from true [2021-11-03 05:40:53,313 WARN L207 SmtUtils]: Spent 5.64 s on a formula simplification that was a NOOP. DAG size: 15 [2021-11-03 05:41:01,320 WARN L207 SmtUtils]: Spent 5.61 s on a formula simplification that was a NOOP. DAG size: 15 [2021-11-03 05:41:06,966 WARN L207 SmtUtils]: Spent 5.64 s on a formula simplification that was a NOOP. DAG size: 15 [2021-11-03 05:41:12,590 WARN L207 SmtUtils]: Spent 5.62 s on a formula simplification that was a NOOP. DAG size: 8 [2021-11-03 05:41:18,201 WARN L207 SmtUtils]: Spent 5.61 s on a formula simplification that was a NOOP. DAG size: 15 [2021-11-03 05:41:23,445 WARN L207 SmtUtils]: Spent 5.24 s on a formula simplification that was a NOOP. DAG size: 10 [2021-11-03 05:41:29,120 WARN L207 SmtUtils]: Spent 5.67 s on a formula simplification that was a NOOP. DAG size: 6 [2021-11-03 05:41:37,156 WARN L207 SmtUtils]: Spent 5.64 s on a formula simplification that was a NOOP. DAG size: 15 [2021-11-03 05:41:42,812 WARN L207 SmtUtils]: Spent 5.65 s on a formula simplification that was a NOOP. DAG size: 15 [2021-11-03 05:41:48,458 WARN L207 SmtUtils]: Spent 5.64 s on a formula simplification that was a NOOP. DAG size: 8 [2021-11-03 05:41:54,112 WARN L207 SmtUtils]: Spent 5.65 s on a formula simplification that was a NOOP. DAG size: 15 [2021-11-03 05:41:59,397 WARN L207 SmtUtils]: Spent 5.28 s on a formula simplification that was a NOOP. DAG size: 10 [2021-11-03 05:42:05,063 WARN L207 SmtUtils]: Spent 5.67 s on a formula simplification that was a NOOP. DAG size: 6 [2021-11-03 05:42:10,716 WARN L207 SmtUtils]: Spent 5.65 s on a formula simplification that was a NOOP. DAG size: 15 [2021-11-03 05:42:16,466 WARN L207 SmtUtils]: Spent 5.75 s on a formula simplification that was a NOOP. DAG size: 8 [2021-11-03 05:42:22,109 WARN L207 SmtUtils]: Spent 5.64 s on a formula simplification that was a NOOP. DAG size: 15 [2021-11-03 05:42:27,764 WARN L207 SmtUtils]: Spent 5.65 s on a formula simplification that was a NOOP. DAG size: 6 [2021-11-03 05:42:33,426 WARN L207 SmtUtils]: Spent 5.66 s on a formula simplification that was a NOOP. DAG size: 10 [2021-11-03 05:42:39,062 WARN L207 SmtUtils]: Spent 5.63 s on a formula simplification that was a NOOP. DAG size: 10 [2021-11-03 05:42:41,497 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53)) (ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse5 (fp.div roundNearestTiesToEven .cse1 ULTIMATE.start_SqrtR_~Input))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse3 (fp.add roundNearestTiesToEven .cse5 .cse5))) (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse2) .cse3))) (and (not (fp.lt .cse0 ULTIMATE.start_SqrtR_~linf~0)) (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (not (fp.gt .cse0 (fp.mul roundNearestTiesToEven .cse2 .cse3))) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse1)) (let ((.cse4 (fp.div roundNearestTiesToEven .cse1 .cse5))) (or (not (fp.geq .cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 9.0 10.0)))) (not (fp.leq .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 5.0))))))))))) is different from false [2021-11-03 05:42:43,773 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53)) (ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse5 (fp.div roundNearestTiesToEven .cse1 ULTIMATE.start_SqrtR_~Input))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse3 (fp.add roundNearestTiesToEven .cse5 .cse5))) (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse2) .cse3))) (and (not (fp.lt .cse0 ULTIMATE.start_SqrtR_~linf~0)) (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (not (fp.gt .cse0 (fp.mul roundNearestTiesToEven .cse2 .cse3))) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse1)) (let ((.cse4 (fp.div roundNearestTiesToEven .cse1 .cse5))) (or (not (fp.geq .cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 9.0 10.0)))) (not (fp.leq .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 5.0))))))))))) is different from true [2021-11-03 05:42:43,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:42:43,774 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:42:55,962 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) c_ULTIMATE.start_SqrtR_~xnp1~0))) (and (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 9.0 10.0))) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 5.0)))) is different from false [2021-11-03 05:43:13,652 WARN L838 $PredicateComparison]: unable to prove that (or (let ((.cse0 (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) c_ULTIMATE.start_SqrtR_~xnp1~0))) (and (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 9.0 10.0))) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 5.0)))) (not (= c_ULTIMATE.start_SqrtR_~cond~0 (_ bv0 32)))) is different from false [2021-11-03 05:43:15,842 WARN L860 $PredicateComparison]: unable to prove that (or (let ((.cse0 (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) c_ULTIMATE.start_SqrtR_~xnp1~0))) (and (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 9.0 10.0))) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 5.0)))) (not (= c_ULTIMATE.start_SqrtR_~cond~0 (_ bv0 32)))) is different from true [2021-11-03 05:43:25,902 WARN L207 SmtUtils]: Spent 5.08 s on a formula simplification that was a NOOP. DAG size: 8 [2021-11-03 05:43:30,981 WARN L207 SmtUtils]: Spent 5.08 s on a formula simplification that was a NOOP. DAG size: 8 [2021-11-03 05:43:36,059 WARN L207 SmtUtils]: Spent 5.07 s on a formula simplification that was a NOOP. DAG size: 10 [2021-11-03 05:43:38,320 WARN L838 $PredicateComparison]: unable to prove that (or (let ((.cse0 (fp.add c_currentRoundingMode c_ULTIMATE.start_SqrtR_~xn~0 c_ULTIMATE.start_SqrtR_~xn~0))) (fp.gt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) .cse0) (fp.mul c_currentRoundingMode c_~_EPS~0 .cse0))) (let ((.cse1 (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) c_ULTIMATE.start_SqrtR_~xn~0))) (and (fp.geq .cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 9.0 10.0))) (fp.leq .cse1 ((_ to_fp 11 53) c_currentRoundingMode 5.0)))) (forall ((v_ULTIMATE.start_SqrtR_~linf~0_7 (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) (fp.add c_currentRoundingMode c_ULTIMATE.start_SqrtR_~xn~0 c_ULTIMATE.start_SqrtR_~xn~0)) v_ULTIMATE.start_SqrtR_~linf~0_7))) is different from false [2021-11-03 05:43:40,576 WARN L860 $PredicateComparison]: unable to prove that (or (let ((.cse0 (fp.add c_currentRoundingMode c_ULTIMATE.start_SqrtR_~xn~0 c_ULTIMATE.start_SqrtR_~xn~0))) (fp.gt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) .cse0) (fp.mul c_currentRoundingMode c_~_EPS~0 .cse0))) (let ((.cse1 (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) c_ULTIMATE.start_SqrtR_~xn~0))) (and (fp.geq .cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 9.0 10.0))) (fp.leq .cse1 ((_ to_fp 11 53) c_currentRoundingMode 5.0)))) (forall ((v_ULTIMATE.start_SqrtR_~linf~0_7 (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) (fp.add c_currentRoundingMode c_ULTIMATE.start_SqrtR_~xn~0 c_ULTIMATE.start_SqrtR_~xn~0)) v_ULTIMATE.start_SqrtR_~linf~0_7))) is different from true [2021-11-03 05:43:41,942 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-11-03 05:43:41,943 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:43:41,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1120009807] [2021-11-03 05:43:41,944 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-11-03 05:43:41,944 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2142186272] [2021-11-03 05:43:41,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:43:41,944 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-03 05:43:41,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/cvc4 [2021-11-03 05:43:41,945 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2021-11-03 05:43:41,946 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-03 05:43:41,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-11-03 05:43:47,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:43:47,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-03 05:43:47,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:43:47,612 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-11-03 05:43:47,612 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874524958] [2021-11-03 05:43:47,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:43:47,613 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:43:47,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:43:47,614 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:43:47,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-03 05:44:58,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:44:59,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-03 05:44:59,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:44:59,301 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-11-03 05:44:59,301 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:44:59,301 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-03 05:44:59,302 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-11-03 05:44:59,302 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-11-03 05:44:59,309 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 05:44:59,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:44:59,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:44:59,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:44:59,926 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/cvc4 --incremental --print-success --lang smt,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_69275c36-a336-4cc1-8a18-495f0497cd68/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:44:59,929 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-03 05:44:59,931 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 05:44:59,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 05:44:59 BoogieIcfgContainer [2021-11-03 05:44:59,945 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 05:44:59,945 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 05:44:59,945 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 05:44:59,946 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 05:44:59,946 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:33:32" (3/4) ... [2021-11-03 05:44:59,951 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-03 05:44:59,951 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 05:44:59,952 INFO L168 Benchmark]: Toolchain (without parser) took 697631.16 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 31.2 MB in the beginning and 41.3 MB in the end (delta: -10.1 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2021-11-03 05:44:59,952 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 54.5 MB. Free memory was 35.7 MB in the beginning and 35.6 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:44:59,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.55 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 31.0 MB in the beginning and 52.8 MB in the end (delta: -21.8 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-11-03 05:44:59,953 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.49 ms. Allocated memory is still 71.3 MB. Free memory was 52.8 MB in the beginning and 51.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:44:59,954 INFO L168 Benchmark]: Boogie Preprocessor took 32.56 ms. Allocated memory is still 71.3 MB. Free memory was 51.2 MB in the beginning and 49.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 05:44:59,955 INFO L168 Benchmark]: RCFGBuilder took 9367.01 ms. Allocated memory is still 71.3 MB. Free memory was 49.7 MB in the beginning and 39.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-03 05:44:59,955 INFO L168 Benchmark]: TraceAbstraction took 687811.32 ms. Allocated memory is still 71.3 MB. Free memory was 38.7 MB in the beginning and 41.3 MB in the end (delta: -2.6 MB). Peak memory consumption was 933.1 kB. Max. memory is 16.1 GB. [2021-11-03 05:44:59,956 INFO L168 Benchmark]: Witness Printer took 5.95 ms. Allocated memory is still 71.3 MB. Free memory is still 41.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:44:59,959 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 54.5 MB. Free memory was 35.7 MB in the beginning and 35.6 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 362.55 ms. Allocated memory was 54.5 MB in the beginning and 71.3 MB in the end (delta: 16.8 MB). Free memory was 31.0 MB in the beginning and 52.8 MB in the end (delta: -21.8 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.49 ms. Allocated memory is still 71.3 MB. Free memory was 52.8 MB in the beginning and 51.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.56 ms. Allocated memory is still 71.3 MB. Free memory was 51.2 MB in the beginning and 49.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 9367.01 ms. Allocated memory is still 71.3 MB. Free memory was 49.7 MB in the beginning and 39.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 687811.32 ms. Allocated memory is still 71.3 MB. Free memory was 38.7 MB in the beginning and 41.3 MB in the end (delta: -2.6 MB). Peak memory consumption was 933.1 kB. Max. memory is 16.1 GB. * Witness Printer took 5.95 ms. Allocated memory is still 71.3 MB. Free memory is still 41.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 13]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L15] double _EPS = 1e-6; [L42] double d, dd, r; [L43] double epsilon = 1e-8; [L45] d = 1. [L45] COND TRUE d <= 20. [L47] dd = __VERIFIER_nondet_double() [L11] COND FALSE !(!cond) [L19] double xn, xnp1, residu, lsup, linf; [L20] int i, cond; [L21] COND FALSE !(Input <= 1.0) [L21] xn = 1.0/Input [L22] xnp1 = xn [L23] residu = 2.0*_EPS*(xn+xnp1) [L24] lsup = _EPS * (xn+xnp1) [L25] linf = -lsup [L26] cond = ((residu > lsup) || (residu < linf)) [L27] i = 0 [L28] COND FALSE !(\read(cond)) [L37] return 1.0 / xnp1; [L50] r = SqrtR(dd) [L13] COND TRUE !(cond) [L13] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 687.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 27.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 30 SDtfs, 2 SDslu, 29 SDs, 0 SdLazy, 22 SolverSat, 0 SolverUnsat, 8 SolverUnknown, 0 SolverNotchecked, 22.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 24.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=2, InterpolantAutomatonStates: 7, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 6.5s SatisfiabilityAnalysisTime, 574.9s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 55 ConstructedInterpolants, 7 QuantifiedInterpolants, 1043 SizeOfPredicates, 26 NumberOfNonLiveVariables, 141 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN