./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0710.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0710.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 213c24ef3c7753bf19a615c5715fd8340a45826778b0f8f910dadd2d17208462 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-15 23:45:44,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 23:45:44,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 23:45:44,165 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 23:45:44,165 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 23:45:44,166 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 23:45:44,167 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 23:45:44,168 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 23:45:44,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 23:45:44,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 23:45:44,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 23:45:44,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 23:45:44,172 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 23:45:44,173 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 23:45:44,174 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 23:45:44,174 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 23:45:44,175 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 23:45:44,178 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 23:45:44,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 23:45:44,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 23:45:44,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 23:45:44,187 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 23:45:44,188 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 23:45:44,189 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 23:45:44,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 23:45:44,195 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 23:45:44,195 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 23:45:44,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 23:45:44,197 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 23:45:44,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 23:45:44,197 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 23:45:44,198 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 23:45:44,199 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 23:45:44,200 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 23:45:44,201 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 23:45:44,201 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 23:45:44,201 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 23:45:44,201 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 23:45:44,202 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 23:45:44,202 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 23:45:44,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 23:45:44,203 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 23:45:44,229 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 23:45:44,229 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 23:45:44,229 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 23:45:44,230 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 23:45:44,230 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 23:45:44,230 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 23:45:44,231 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 23:45:44,231 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 23:45:44,231 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 23:45:44,232 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 23:45:44,232 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 23:45:44,232 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 23:45:44,232 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 23:45:44,233 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 23:45:44,233 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 23:45:44,233 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 23:45:44,233 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 23:45:44,233 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 23:45:44,233 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 23:45:44,233 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 23:45:44,234 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 23:45:44,234 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 23:45:44,234 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 23:45:44,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 23:45:44,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 23:45:44,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 23:45:44,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 23:45:44,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 23:45:44,235 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 23:45:44,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 23:45:44,235 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 23:45:44,236 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 23:45:44,236 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 23:45:44,236 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 23:45:44,236 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 213c24ef3c7753bf19a615c5715fd8340a45826778b0f8f910dadd2d17208462 [2021-12-15 23:45:44,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 23:45:44,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 23:45:44,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 23:45:44,446 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 23:45:44,447 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 23:45:44,448 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0710.c [2021-12-15 23:45:44,489 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6fea3207/a283c6b266d740439dedf06d34ab1307/FLAG7fd59f17c [2021-12-15 23:45:44,796 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 23:45:44,796 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0710.c [2021-12-15 23:45:44,804 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6fea3207/a283c6b266d740439dedf06d34ab1307/FLAG7fd59f17c [2021-12-15 23:45:45,219 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6fea3207/a283c6b266d740439dedf06d34ab1307 [2021-12-15 23:45:45,220 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 23:45:45,221 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 23:45:45,222 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 23:45:45,222 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 23:45:45,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 23:45:45,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:45:45" (1/1) ... [2021-12-15 23:45:45,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@321e8dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:45, skipping insertion in model container [2021-12-15 23:45:45,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:45:45" (1/1) ... [2021-12-15 23:45:45,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 23:45:45,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 23:45:45,366 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0710.c[1961,1974] [2021-12-15 23:45:45,370 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 23:45:45,378 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 23:45:45,416 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0710.c[1961,1974] [2021-12-15 23:45:45,417 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 23:45:45,426 INFO L208 MainTranslator]: Completed translation [2021-12-15 23:45:45,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:45 WrapperNode [2021-12-15 23:45:45,426 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 23:45:45,427 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 23:45:45,427 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 23:45:45,428 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 23:45:45,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:45" (1/1) ... [2021-12-15 23:45:45,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:45" (1/1) ... [2021-12-15 23:45:45,469 INFO L137 Inliner]: procedures = 17, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 116 [2021-12-15 23:45:45,470 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 23:45:45,470 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 23:45:45,470 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 23:45:45,471 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 23:45:45,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:45" (1/1) ... [2021-12-15 23:45:45,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:45" (1/1) ... [2021-12-15 23:45:45,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:45" (1/1) ... [2021-12-15 23:45:45,483 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:45" (1/1) ... [2021-12-15 23:45:45,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:45" (1/1) ... [2021-12-15 23:45:45,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:45" (1/1) ... [2021-12-15 23:45:45,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:45" (1/1) ... [2021-12-15 23:45:45,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 23:45:45,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 23:45:45,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 23:45:45,516 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 23:45:45,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:45" (1/1) ... [2021-12-15 23:45:45,521 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 23:45:45,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 23:45:45,538 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 23:45:45,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 23:45:45,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 23:45:45,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 23:45:45,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 23:45:45,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-15 23:45:45,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 23:45:45,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-15 23:45:45,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 23:45:45,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 23:45:45,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 23:45:45,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 23:45:45,675 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 23:45:45,676 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 23:45:45,864 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 23:45:45,868 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 23:45:45,875 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-12-15 23:45:45,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:45:45 BoogieIcfgContainer [2021-12-15 23:45:45,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 23:45:45,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 23:45:45,878 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 23:45:45,884 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 23:45:45,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:45:45" (1/3) ... [2021-12-15 23:45:45,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@763e943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:45:45, skipping insertion in model container [2021-12-15 23:45:45,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:45" (2/3) ... [2021-12-15 23:45:45,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@763e943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:45:45, skipping insertion in model container [2021-12-15 23:45:45,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:45:45" (3/3) ... [2021-12-15 23:45:45,887 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0710.c [2021-12-15 23:45:45,891 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 23:45:45,891 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 23:45:45,937 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 23:45:45,943 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=PETRI_NET, 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 [2021-12-15 23:45:45,944 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 23:45:45,963 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 33 states have (on average 1.606060606060606) internal successors, (53), 34 states have internal predecessors, (53), 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) [2021-12-15 23:45:45,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-15 23:45:45,967 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:45:45,967 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:45:45,968 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:45:45,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:45:45,972 INFO L85 PathProgramCache]: Analyzing trace with hash 860611220, now seen corresponding path program 1 times [2021-12-15 23:45:45,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 23:45:45,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647591980] [2021-12-15 23:45:45,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:45:45,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 23:45:46,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:45:46,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:45:46,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 23:45:46,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647591980] [2021-12-15 23:45:46,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647591980] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:45:46,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:45:46,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 23:45:46,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2388010] [2021-12-15 23:45:46,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:45:46,085 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-15 23:45:46,085 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 23:45:46,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 23:45:46,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 23:45:46,138 INFO L87 Difference]: Start difference. First operand has 35 states, 33 states have (on average 1.606060606060606) internal successors, (53), 34 states have internal predecessors, (53), 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 5.0) internal successors, (10), 2 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) [2021-12-15 23:45:46,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:45:46,150 INFO L93 Difference]: Finished difference Result 67 states and 102 transitions. [2021-12-15 23:45:46,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 23:45:46,153 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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) Word has length 10 [2021-12-15 23:45:46,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:45:46,161 INFO L225 Difference]: With dead ends: 67 [2021-12-15 23:45:46,161 INFO L226 Difference]: Without dead ends: 31 [2021-12-15 23:45:46,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 23:45:46,166 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 23:45:46,166 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 23:45:46,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-12-15 23:45:46,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-12-15 23:45:46,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 30 states have internal predecessors, (41), 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) [2021-12-15 23:45:46,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 41 transitions. [2021-12-15 23:45:46,187 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 41 transitions. Word has length 10 [2021-12-15 23:45:46,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:45:46,187 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 41 transitions. [2021-12-15 23:45:46,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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) [2021-12-15 23:45:46,188 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 41 transitions. [2021-12-15 23:45:46,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-15 23:45:46,188 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:45:46,189 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:45:46,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 23:45:46,189 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:45:46,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:45:46,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1279985196, now seen corresponding path program 1 times [2021-12-15 23:45:46,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 23:45:46,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360433439] [2021-12-15 23:45:46,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:45:46,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 23:45:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 23:45:46,214 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 23:45:46,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 23:45:46,244 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 23:45:46,244 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-15 23:45:46,245 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 23:45:46,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 23:45:46,249 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-15 23:45:46,250 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 23:45:46,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 11:45:46 BoogieIcfgContainer [2021-12-15 23:45:46,280 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 23:45:46,281 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 23:45:46,281 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 23:45:46,281 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 23:45:46,282 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:45:45" (3/4) ... [2021-12-15 23:45:46,284 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-15 23:45:46,284 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 23:45:46,285 INFO L158 Benchmark]: Toolchain (without parser) took 1063.30ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 69.2MB in the beginning and 85.7MB in the end (delta: -16.4MB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. [2021-12-15 23:45:46,286 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 98.6MB. Free memory was 58.3MB in the beginning and 58.3MB in the end (delta: 42.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 23:45:46,288 INFO L158 Benchmark]: CACSL2BoogieTranslator took 204.34ms. Allocated memory is still 98.6MB. Free memory was 69.0MB in the beginning and 74.8MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 23:45:46,289 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.66ms. Allocated memory is still 98.6MB. Free memory was 74.8MB in the beginning and 73.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 23:45:46,290 INFO L158 Benchmark]: Boogie Preprocessor took 44.53ms. Allocated memory is still 98.6MB. Free memory was 73.1MB in the beginning and 71.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 23:45:46,291 INFO L158 Benchmark]: RCFGBuilder took 361.22ms. Allocated memory is still 98.6MB. Free memory was 71.5MB in the beginning and 59.3MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 23:45:46,291 INFO L158 Benchmark]: TraceAbstraction took 402.85ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 58.9MB in the beginning and 86.3MB in the end (delta: -27.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 23:45:46,291 INFO L158 Benchmark]: Witness Printer took 3.17ms. Allocated memory is still 119.5MB. Free memory was 86.3MB in the beginning and 85.7MB in the end (delta: 565.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 23:45:46,296 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 98.6MB. Free memory was 58.3MB in the beginning and 58.3MB in the end (delta: 42.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 204.34ms. Allocated memory is still 98.6MB. Free memory was 69.0MB in the beginning and 74.8MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.66ms. Allocated memory is still 98.6MB. Free memory was 74.8MB in the beginning and 73.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.53ms. Allocated memory is still 98.6MB. Free memory was 73.1MB in the beginning and 71.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 361.22ms. Allocated memory is still 98.6MB. Free memory was 71.5MB in the beginning and 59.3MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 402.85ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 58.9MB in the beginning and 86.3MB in the end (delta: -27.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.17ms. Allocated memory is still 119.5MB. Free memory was 86.3MB in the beginning and 85.7MB in the end (delta: 565.4kB). There was no memory consumed. Max. memory is 16.1GB. * 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: 100]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15, overapproximation of bitwiseAnd at line 29, overapproximation of someBinaryArithmeticFLOAToperation at line 32. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L93] float x = __VERIFIER_nondet_float(); [L94] COND TRUE x < -0.0f [L96] CALL, EXPR __ieee754_sqrtf(x) [L20] float z; [L21] __uint32_t r, hx; [L22] __int32_t ix, s, q, m, t, i; VAL [\old(x)=2139095042, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2139095042] [L25] ieee_float_shape_type gf_u; [L26] gf_u.value = (x) [L27] EXPR gf_u.word [L27] (ix) = gf_u.word [L29] hx = ix & 0x7fffffff VAL [\old(x)=2139095042, ix=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2139095042] [L31] COND TRUE !((hx) < 0x7f800000L) [L32] return x * x + x; VAL [\old(x)=2139095042, hx=2139095040, ix=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2139095042] [L96] RET, EXPR __ieee754_sqrtf(x) [L96] float res = __ieee754_sqrtf(x); [L99] CALL, EXPR isnan_float(res) [L15] return x != x; VAL [\old(x)=2139095041, \result=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=2139095041] [L99] RET, EXPR isnan_float(res) [L99] COND TRUE !isnan_float(res) [L100] reach_error() VAL [one_sqrt=1, res=2139095041, tiny_sqrt=1/1000000000000000000000000000000, x=2139095042] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 46 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-15 23:45:46,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- 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=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0710.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 213c24ef3c7753bf19a615c5715fd8340a45826778b0f8f910dadd2d17208462 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-15 23:45:47,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 23:45:47,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 23:45:48,001 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 23:45:48,002 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 23:45:48,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 23:45:48,005 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 23:45:48,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 23:45:48,011 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 23:45:48,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 23:45:48,016 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 23:45:48,017 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 23:45:48,017 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 23:45:48,019 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 23:45:48,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 23:45:48,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 23:45:48,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 23:45:48,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 23:45:48,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 23:45:48,031 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 23:45:48,032 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 23:45:48,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 23:45:48,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 23:45:48,035 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 23:45:48,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 23:45:48,043 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 23:45:48,043 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 23:45:48,044 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 23:45:48,044 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 23:45:48,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 23:45:48,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 23:45:48,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 23:45:48,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 23:45:48,047 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 23:45:48,048 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 23:45:48,048 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 23:45:48,049 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 23:45:48,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 23:45:48,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 23:45:48,050 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 23:45:48,051 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 23:45:48,053 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 23:45:48,087 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 23:45:48,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 23:45:48,087 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 23:45:48,087 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 23:45:48,088 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 23:45:48,088 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 23:45:48,089 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 23:45:48,089 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 23:45:48,089 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 23:45:48,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 23:45:48,089 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 23:45:48,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 23:45:48,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 23:45:48,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 23:45:48,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 23:45:48,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 23:45:48,090 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 23:45:48,090 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 23:45:48,090 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 23:45:48,091 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 23:45:48,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 23:45:48,092 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 23:45:48,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 23:45:48,093 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 23:45:48,093 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 23:45:48,093 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 23:45:48,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 23:45:48,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 23:45:48,094 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 23:45:48,094 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 23:45:48,094 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 23:45:48,094 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 23:45:48,094 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 23:45:48,095 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 23:45:48,095 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 23:45:48,095 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 23:45:48,095 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 23:45:48,096 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 213c24ef3c7753bf19a615c5715fd8340a45826778b0f8f910dadd2d17208462 [2021-12-15 23:45:48,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 23:45:48,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 23:45:48,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 23:45:48,371 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 23:45:48,376 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 23:45:48,377 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0710.c [2021-12-15 23:45:48,421 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2d39e588/b0f271de0c224d8ebf12b6c2cf7e9643/FLAG03298640c [2021-12-15 23:45:48,762 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 23:45:48,763 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0710.c [2021-12-15 23:45:48,769 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2d39e588/b0f271de0c224d8ebf12b6c2cf7e9643/FLAG03298640c [2021-12-15 23:45:48,781 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f2d39e588/b0f271de0c224d8ebf12b6c2cf7e9643 [2021-12-15 23:45:48,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 23:45:48,786 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 23:45:48,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 23:45:48,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 23:45:48,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 23:45:48,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:45:48" (1/1) ... [2021-12-15 23:45:48,790 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@157118bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:48, skipping insertion in model container [2021-12-15 23:45:48,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:45:48" (1/1) ... [2021-12-15 23:45:48,795 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 23:45:48,810 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 23:45:48,933 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0710.c[1961,1974] [2021-12-15 23:45:48,936 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 23:45:48,963 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 23:45:48,997 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0710.c[1961,1974] [2021-12-15 23:45:48,998 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 23:45:49,008 INFO L208 MainTranslator]: Completed translation [2021-12-15 23:45:49,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:49 WrapperNode [2021-12-15 23:45:49,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 23:45:49,010 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 23:45:49,010 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 23:45:49,010 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 23:45:49,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:49" (1/1) ... [2021-12-15 23:45:49,029 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:49" (1/1) ... [2021-12-15 23:45:49,051 INFO L137 Inliner]: procedures = 20, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 116 [2021-12-15 23:45:49,051 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 23:45:49,052 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 23:45:49,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 23:45:49,053 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 23:45:49,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:49" (1/1) ... [2021-12-15 23:45:49,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:49" (1/1) ... [2021-12-15 23:45:49,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:49" (1/1) ... [2021-12-15 23:45:49,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:49" (1/1) ... [2021-12-15 23:45:49,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:49" (1/1) ... [2021-12-15 23:45:49,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:49" (1/1) ... [2021-12-15 23:45:49,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:49" (1/1) ... [2021-12-15 23:45:49,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 23:45:49,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 23:45:49,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 23:45:49,102 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 23:45:49,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:49" (1/1) ... [2021-12-15 23:45:49,108 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 23:45:49,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 23:45:49,123 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-15 23:45:49,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-15 23:45:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 23:45:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 23:45:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-15 23:45:49,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-12-15 23:45:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 23:45:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 23:45:49,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 23:45:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-12-15 23:45:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 23:45:49,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-15 23:45:49,202 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 23:45:49,212 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 23:45:49,770 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 23:45:49,774 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 23:45:49,774 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-12-15 23:45:49,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:45:49 BoogieIcfgContainer [2021-12-15 23:45:49,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 23:45:49,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 23:45:49,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 23:45:49,781 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 23:45:49,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:45:48" (1/3) ... [2021-12-15 23:45:49,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c254a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:45:49, skipping insertion in model container [2021-12-15 23:45:49,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:45:49" (2/3) ... [2021-12-15 23:45:49,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c254a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:45:49, skipping insertion in model container [2021-12-15 23:45:49,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:45:49" (3/3) ... [2021-12-15 23:45:49,784 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0710.c [2021-12-15 23:45:49,788 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 23:45:49,788 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 23:45:49,827 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 23:45:49,842 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=PETRI_NET, 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 [2021-12-15 23:45:49,843 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 23:45:49,860 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 33 states have (on average 1.606060606060606) internal successors, (53), 34 states have internal predecessors, (53), 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) [2021-12-15 23:45:49,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-15 23:45:49,863 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:45:49,864 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:45:49,864 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:45:49,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:45:49,868 INFO L85 PathProgramCache]: Analyzing trace with hash 860611220, now seen corresponding path program 1 times [2021-12-15 23:45:49,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 23:45:49,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [971327011] [2021-12-15 23:45:49,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:45:49,876 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 23:45:49,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 23:45:49,878 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 23:45:49,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 23:45:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:45:50,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-15 23:45:50,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:45:50,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:45:50,044 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 23:45:50,044 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 23:45:50,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [971327011] [2021-12-15 23:45:50,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [971327011] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:45:50,046 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:45:50,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 23:45:50,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077629998] [2021-12-15 23:45:50,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:45:50,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-15 23:45:50,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 23:45:50,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 23:45:50,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 23:45:50,078 INFO L87 Difference]: Start difference. First operand has 35 states, 33 states have (on average 1.606060606060606) internal successors, (53), 34 states have internal predecessors, (53), 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 5.0) internal successors, (10), 2 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) [2021-12-15 23:45:50,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:45:50,094 INFO L93 Difference]: Finished difference Result 67 states and 102 transitions. [2021-12-15 23:45:50,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 23:45:50,095 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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) Word has length 10 [2021-12-15 23:45:50,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:45:50,101 INFO L225 Difference]: With dead ends: 67 [2021-12-15 23:45:50,101 INFO L226 Difference]: Without dead ends: 31 [2021-12-15 23:45:50,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 23:45:50,106 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 23:45:50,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 23:45:50,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-12-15 23:45:50,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-12-15 23:45:50,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 30 states have internal predecessors, (41), 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) [2021-12-15 23:45:50,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 41 transitions. [2021-12-15 23:45:50,136 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 41 transitions. Word has length 10 [2021-12-15 23:45:50,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:45:50,136 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 41 transitions. [2021-12-15 23:45:50,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 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) [2021-12-15 23:45:50,136 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 41 transitions. [2021-12-15 23:45:50,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-15 23:45:50,137 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:45:50,137 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:45:50,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-15 23:45:50,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 23:45:50,349 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:45:50,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:45:50,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1279985196, now seen corresponding path program 1 times [2021-12-15 23:45:50,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 23:45:50,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [62232531] [2021-12-15 23:45:50,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:45:50,354 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 23:45:50,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 23:45:50,356 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 23:45:50,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-15 23:45:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:45:50,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-15 23:45:50,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:46:00,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:46:00,730 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 23:46:00,731 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 23:46:00,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [62232531] [2021-12-15 23:46:00,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [62232531] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:46:00,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:46:00,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-15 23:46:00,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280735653] [2021-12-15 23:46:00,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:46:00,732 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-15 23:46:00,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 23:46:00,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-15 23:46:00,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=50, Unknown=2, NotChecked=0, Total=72 [2021-12-15 23:46:00,733 INFO L87 Difference]: Start difference. First operand 31 states and 41 transitions. Second operand has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 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) [2021-12-15 23:46:09,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:46:09,082 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2021-12-15 23:46:09,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-15 23:46:09,085 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 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 11 [2021-12-15 23:46:09,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:46:09,085 INFO L225 Difference]: With dead ends: 36 [2021-12-15 23:46:09,085 INFO L226 Difference]: Without dead ends: 31 [2021-12-15 23:46:09,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=30, Invalid=77, Unknown=3, NotChecked=0, Total=110 [2021-12-15 23:46:09,087 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 7 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-15 23:46:09,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 204 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 22 Unchecked, 2.3s Time] [2021-12-15 23:46:09,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-12-15 23:46:09,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-12-15 23:46:09,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 30 states have internal predecessors, (40), 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) [2021-12-15 23:46:09,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 40 transitions. [2021-12-15 23:46:09,090 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 40 transitions. Word has length 11 [2021-12-15 23:46:09,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:46:09,090 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 40 transitions. [2021-12-15 23:46:09,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 8 states have internal predecessors, (11), 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) [2021-12-15 23:46:09,090 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 40 transitions. [2021-12-15 23:46:09,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-15 23:46:09,091 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:46:09,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:46:09,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-15 23:46:09,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 23:46:09,300 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:46:09,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:46:09,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1000761490, now seen corresponding path program 1 times [2021-12-15 23:46:09,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 23:46:09,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2045489518] [2021-12-15 23:46:09,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:46:09,301 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 23:46:09,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 23:46:09,302 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 23:46:09,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-15 23:46:09,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:46:09,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-15 23:46:09,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:46:13,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:46:13,428 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 23:46:13,428 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 23:46:13,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2045489518] [2021-12-15 23:46:13,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2045489518] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:46:13,428 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:46:13,428 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 23:46:13,428 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257911977] [2021-12-15 23:46:13,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:46:13,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 23:46:13,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 23:46:13,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 23:46:13,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=12, Unknown=1, NotChecked=0, Total=20 [2021-12-15 23:46:13,429 INFO L87 Difference]: Start difference. First operand 31 states and 40 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2021-12-15 23:46:15,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:46:15,701 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2021-12-15 23:46:15,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-15 23:46:15,702 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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 [2021-12-15 23:46:15,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:46:15,703 INFO L225 Difference]: With dead ends: 36 [2021-12-15 23:46:15,703 INFO L226 Difference]: Without dead ends: 31 [2021-12-15 23:46:15,703 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=17, Invalid=24, Unknown=1, NotChecked=0, Total=42 [2021-12-15 23:46:15,704 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 4 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-15 23:46:15,704 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 118 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 6 Unchecked, 1.2s Time] [2021-12-15 23:46:15,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-12-15 23:46:15,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-12-15 23:46:15,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.3) internal successors, (39), 30 states have internal predecessors, (39), 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) [2021-12-15 23:46:15,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2021-12-15 23:46:15,707 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 39 transitions. Word has length 12 [2021-12-15 23:46:15,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:46:15,707 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 39 transitions. [2021-12-15 23:46:15,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 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) [2021-12-15 23:46:15,707 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2021-12-15 23:46:15,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-15 23:46:15,707 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:46:15,707 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:46:15,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-15 23:46:15,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 23:46:15,911 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:46:15,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:46:15,912 INFO L85 PathProgramCache]: Analyzing trace with hash 939378801, now seen corresponding path program 1 times [2021-12-15 23:46:15,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 23:46:15,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [891163383] [2021-12-15 23:46:15,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:46:15,912 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 23:46:15,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 23:46:15,913 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 23:46:15,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-12-15 23:46:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:46:16,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-15 23:46:16,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:46:21,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:46:21,644 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 23:46:21,644 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 23:46:21,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [891163383] [2021-12-15 23:46:21,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [891163383] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:46:21,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:46:21,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 23:46:21,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948905510] [2021-12-15 23:46:21,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:46:21,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-15 23:46:21,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 23:46:21,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-15 23:46:21,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-15 23:46:21,645 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-12-15 23:46:26,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:46:26,212 INFO L93 Difference]: Finished difference Result 36 states and 43 transitions. [2021-12-15 23:46:26,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-15 23:46:26,212 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2021-12-15 23:46:26,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:46:26,213 INFO L225 Difference]: With dead ends: 36 [2021-12-15 23:46:26,213 INFO L226 Difference]: Without dead ends: 31 [2021-12-15 23:46:26,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-15 23:46:26,215 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 28 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-15 23:46:26,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 135 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 6 Unchecked, 1.5s Time] [2021-12-15 23:46:26,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-12-15 23:46:26,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2021-12-15 23:46:26,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 30 states have internal predecessors, (38), 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) [2021-12-15 23:46:26,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2021-12-15 23:46:26,217 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 13 [2021-12-15 23:46:26,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:46:26,218 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2021-12-15 23:46:26,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 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) [2021-12-15 23:46:26,218 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2021-12-15 23:46:26,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-15 23:46:26,218 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 23:46:26,218 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 23:46:26,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-12-15 23:46:26,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 23:46:26,421 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 23:46:26,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 23:46:26,422 INFO L85 PathProgramCache]: Analyzing trace with hash -704868097, now seen corresponding path program 1 times [2021-12-15 23:46:26,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 23:46:26,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [922312704] [2021-12-15 23:46:26,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 23:46:26,422 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 23:46:26,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 23:46:26,423 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 23:46:26,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-12-15 23:46:26,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 23:46:26,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-15 23:46:26,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 23:46:28,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 23:46:28,240 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 23:46:28,240 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 23:46:28,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [922312704] [2021-12-15 23:46:28,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [922312704] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 23:46:28,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 23:46:28,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 23:46:28,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189860892] [2021-12-15 23:46:28,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 23:46:28,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 23:46:28,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 23:46:28,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 23:46:28,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 23:46:28,242 INFO L87 Difference]: Start difference. First operand 31 states and 38 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 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) [2021-12-15 23:46:28,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 23:46:28,790 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2021-12-15 23:46:28,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 23:46:28,791 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 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) Word has length 23 [2021-12-15 23:46:28,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 23:46:28,791 INFO L225 Difference]: With dead ends: 31 [2021-12-15 23:46:28,791 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 23:46:28,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-15 23:46:28,792 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 5 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 23:46:28,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 10 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 23:46:28,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 23:46:28,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 23:46:28,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 23:46:28,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 23:46:28,794 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2021-12-15 23:46:28,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 23:46:28,794 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 23:46:28,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 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) [2021-12-15 23:46:28,794 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 23:46:28,794 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 23:46:28,796 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 23:46:28,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-12-15 23:46:28,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 23:46:28,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 23:46:42,311 WARN L227 SmtUtils]: Spent 12.78s on a formula simplification that was a NOOP. DAG size: 29 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2021-12-15 23:46:42,312 INFO L858 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2021-12-15 23:46:42,312 INFO L858 garLoopResultBuilder]: For program point L94(lines 94 103) no Hoare annotation was computed. [2021-12-15 23:46:42,312 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 23:46:42,313 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 23:46:42,313 INFO L858 garLoopResultBuilder]: For program point L94-2(lines 94 103) no Hoare annotation was computed. [2021-12-15 23:46:42,313 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2021-12-15 23:46:42,313 INFO L854 garLoopResultBuilder]: At program point L78-2(lines 78 82) the Hoare annotation is: false [2021-12-15 23:46:42,313 INFO L858 garLoopResultBuilder]: For program point L78-3(lines 78 82) no Hoare annotation was computed. [2021-12-15 23:46:42,313 INFO L858 garLoopResultBuilder]: For program point L70(lines 70 73) no Hoare annotation was computed. [2021-12-15 23:46:42,313 INFO L854 garLoopResultBuilder]: At program point L55-2(lines 55 64) the Hoare annotation is: false [2021-12-15 23:46:42,313 INFO L858 garLoopResultBuilder]: For program point L55-3(lines 19 84) no Hoare annotation was computed. [2021-12-15 23:46:42,313 INFO L858 garLoopResultBuilder]: For program point L47(lines 47 48) no Hoare annotation was computed. [2021-12-15 23:46:42,313 INFO L858 garLoopResultBuilder]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2021-12-15 23:46:42,313 INFO L861 garLoopResultBuilder]: At program point L105(lines 86 106) the Hoare annotation is: true [2021-12-15 23:46:42,313 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2021-12-15 23:46:42,313 INFO L854 garLoopResultBuilder]: At program point L15(line 15) the Hoare annotation is: (= |ULTIMATE.start_isnan_float_#res#1| (_ bv1 32)) [2021-12-15 23:46:42,313 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 44) no Hoare annotation was computed. [2021-12-15 23:46:42,313 INFO L858 garLoopResultBuilder]: For program point L40-2(lines 40 44) no Hoare annotation was computed. [2021-12-15 23:46:42,313 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 23:46:42,313 INFO L858 garLoopResultBuilder]: For program point L57(lines 57 61) no Hoare annotation was computed. [2021-12-15 23:46:42,314 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2021-12-15 23:46:42,314 INFO L858 garLoopResultBuilder]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2021-12-15 23:46:42,314 INFO L858 garLoopResultBuilder]: For program point L57-2(lines 57 61) no Hoare annotation was computed. [2021-12-15 23:46:42,314 INFO L854 garLoopResultBuilder]: At program point L24-2(lines 24 28) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (fp.lt |ULTIMATE.start___ieee754_sqrtf_~x#1| (fp.neg (_ +zero 8 24)))) [2021-12-15 23:46:42,314 INFO L858 garLoopResultBuilder]: For program point L24-3(lines 24 28) no Hoare annotation was computed. [2021-12-15 23:46:42,314 INFO L858 garLoopResultBuilder]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2021-12-15 23:46:42,314 INFO L854 garLoopResultBuilder]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2021-12-15 23:46:42,314 INFO L858 garLoopResultBuilder]: For program point L41-4(lines 41 42) no Hoare annotation was computed. [2021-12-15 23:46:42,314 INFO L858 garLoopResultBuilder]: For program point L99(lines 99 102) no Hoare annotation was computed. [2021-12-15 23:46:42,314 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 75) no Hoare annotation was computed. [2021-12-15 23:46:42,314 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 23:46:42,314 INFO L854 garLoopResultBuilder]: At program point L83(lines 19 84) the Hoare annotation is: (or (exists ((|ULTIMATE.start___ieee754_sqrtf_~ix~0#1| (_ BitVec 32))) (let ((.cse0 (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_sqrtf_~ix~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_sqrtf_~ix~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_sqrtf_~ix~0#1|)))) (and (fp.lt .cse0 (fp.neg (_ +zero 8 24))) (not (bvult (bvand (_ bv2147483647 32) |ULTIMATE.start___ieee754_sqrtf_~ix~0#1|) (_ bv2139095040 32))) (= |ULTIMATE.start___ieee754_sqrtf_#res#1| (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0))))) (and (exists ((|ULTIMATE.start___ieee754_sqrtf_~x#1| (_ FloatingPoint 8 24))) (= |ULTIMATE.start___ieee754_sqrtf_#res#1| (let ((.cse1 (fp.sub roundNearestTiesToEven |ULTIMATE.start___ieee754_sqrtf_~x#1| |ULTIMATE.start___ieee754_sqrtf_~x#1|))) (fp.div roundNearestTiesToEven .cse1 .cse1)))) (= currentRoundingMode roundNearestTiesToEven))) [2021-12-15 23:46:42,314 INFO L858 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2021-12-15 23:46:42,314 INFO L858 garLoopResultBuilder]: For program point L34(lines 34 35) no Hoare annotation was computed. [2021-12-15 23:46:42,314 INFO L858 garLoopResultBuilder]: For program point L68(lines 68 74) no Hoare annotation was computed. [2021-12-15 23:46:42,317 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-12-15 23:46:42,317 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 23:46:42,323 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 23:46:42,325 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 23:46:42,326 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,326 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,326 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,326 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,326 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 23:46:42,326 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 23:46:42,326 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,326 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,326 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,326 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,326 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,326 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,327 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,327 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,327 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,327 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 23:46:42,327 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 23:46:42,327 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-12-15 23:46:42,327 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-12-15 23:46:42,327 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 23:46:42,327 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-12-15 23:46:42,327 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-12-15 23:46:42,327 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 23:46:42,328 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,328 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,328 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,328 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,328 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 23:46:42,328 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 23:46:42,328 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,328 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,328 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,328 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,328 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,328 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,328 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,328 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,328 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,329 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 23:46:42,329 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 23:46:42,329 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-12-15 23:46:42,329 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-12-15 23:46:42,329 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 23:46:42,329 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-12-15 23:46:42,329 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-12-15 23:46:42,329 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 23:46:42,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 11:46:42 BoogieIcfgContainer [2021-12-15 23:46:42,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 23:46:42,330 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 23:46:42,330 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 23:46:42,330 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 23:46:42,331 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:45:49" (3/4) ... [2021-12-15 23:46:42,342 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 23:46:42,348 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2021-12-15 23:46:42,348 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-12-15 23:46:42,348 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-15 23:46:42,348 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 23:46:42,361 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0#1 : bv32 :: (~fp.lt~FLOAT(~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0#1[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[22:0]), ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && !~bvult32(~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0#1), 2139095040bv32)) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0#1[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[22:0]), ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0#1[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[22:0])), ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0#1[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[22:0]))) || ((\exists ULTIMATE.start___ieee754_sqrtf_~x#1 : C_FLOAT :: \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_sqrtf_~x#1, ULTIMATE.start___ieee754_sqrtf_~x#1), ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_sqrtf_~x#1, ULTIMATE.start___ieee754_sqrtf_~x#1))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) [2021-12-15 23:46:42,362 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \result == 1bv32 [2021-12-15 23:46:42,371 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 23:46:42,371 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 23:46:42,372 INFO L158 Benchmark]: Toolchain (without parser) took 53585.94ms. Allocated memory was 50.3MB in the beginning and 71.3MB in the end (delta: 21.0MB). Free memory was 27.8MB in the beginning and 43.9MB in the end (delta: -16.1MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2021-12-15 23:46:42,372 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 50.3MB. Free memory was 32.5MB in the beginning and 32.5MB in the end (delta: 46.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 23:46:42,372 INFO L158 Benchmark]: CACSL2BoogieTranslator took 222.02ms. Allocated memory was 50.3MB in the beginning and 71.3MB in the end (delta: 21.0MB). Free memory was 27.7MB in the beginning and 53.5MB in the end (delta: -25.9MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2021-12-15 23:46:42,373 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.80ms. Allocated memory is still 71.3MB. Free memory was 53.5MB in the beginning and 51.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 23:46:42,373 INFO L158 Benchmark]: Boogie Preprocessor took 49.04ms. Allocated memory is still 71.3MB. Free memory was 51.7MB in the beginning and 49.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 23:46:42,373 INFO L158 Benchmark]: RCFGBuilder took 675.26ms. Allocated memory is still 71.3MB. Free memory was 49.9MB in the beginning and 37.5MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 23:46:42,373 INFO L158 Benchmark]: TraceAbstraction took 52551.03ms. Allocated memory is still 71.3MB. Free memory was 37.0MB in the beginning and 47.4MB in the end (delta: -10.4MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2021-12-15 23:46:42,374 INFO L158 Benchmark]: Witness Printer took 41.46ms. Allocated memory is still 71.3MB. Free memory was 47.4MB in the beginning and 43.9MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 23:46:42,375 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 50.3MB. Free memory was 32.5MB in the beginning and 32.5MB in the end (delta: 46.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 222.02ms. Allocated memory was 50.3MB in the beginning and 71.3MB in the end (delta: 21.0MB). Free memory was 27.7MB in the beginning and 53.5MB in the end (delta: -25.9MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.80ms. Allocated memory is still 71.3MB. Free memory was 53.5MB in the beginning and 51.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.04ms. Allocated memory is still 71.3MB. Free memory was 51.7MB in the beginning and 49.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 675.26ms. Allocated memory is still 71.3MB. Free memory was 49.9MB in the beginning and 37.5MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 52551.03ms. Allocated memory is still 71.3MB. Free memory was 37.0MB in the beginning and 47.4MB in the end (delta: -10.4MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. * Witness Printer took 41.46ms. Allocated memory is still 71.3MB. Free memory was 47.4MB in the beginning and 43.9MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 100]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 52.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 15.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 13.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 44 SdHoareTripleChecker+Valid, 5.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 44 mSDsluCounter, 513 SdHoareTripleChecker+Invalid, 5.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 34 IncrementalHoareTripleChecker+Unchecked, 357 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 71 IncrementalHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 156 mSDtfsCounter, 71 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 25.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 27, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 12 NumberOfFragments, 78 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 13.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 21.7s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 64 ConstructedInterpolants, 5 QuantifiedInterpolants, 311 SizeOfPredicates, 30 NumberOfNonLiveVariables, 239 ConjunctsInSsa, 46 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant [2021-12-15 23:46:42,393 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 23:46:42,393 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && ~fp.lt~FLOAT(x, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: \result == 1bv32 - InvariantResult [Line: 19]: Loop Invariant [2021-12-15 23:46:42,394 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,394 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,394 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,394 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,395 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 23:46:42,395 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 23:46:42,395 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,395 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,395 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,395 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,395 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,395 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,395 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,395 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,396 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,396 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 23:46:42,396 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 23:46:42,396 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-12-15 23:46:42,396 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-12-15 23:46:42,396 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 23:46:42,396 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-12-15 23:46:42,396 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-12-15 23:46:42,396 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 23:46:42,397 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,397 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,397 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,397 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,397 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 23:46:42,397 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 23:46:42,397 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,397 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,397 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,397 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,398 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,398 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,398 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,398 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,398 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0#1,QUANTIFIED] [2021-12-15 23:46:42,398 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 23:46:42,398 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 23:46:42,398 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-12-15 23:46:42,398 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-12-15 23:46:42,398 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-12-15 23:46:42,399 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-12-15 23:46:42,399 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x#1,QUANTIFIED] [2021-12-15 23:46:42,399 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0#1 : bv32 :: (~fp.lt~FLOAT(~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0#1[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[22:0]), ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && !~bvult32(~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0#1), 2139095040bv32)) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0#1[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[22:0]), ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0#1[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[22:0])), ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0#1[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0#1[22:0]))) || ((\exists ULTIMATE.start___ieee754_sqrtf_~x#1 : C_FLOAT :: \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_sqrtf_~x#1, ULTIMATE.start___ieee754_sqrtf_~x#1), ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_sqrtf_~x#1, ULTIMATE.start___ieee754_sqrtf_~x#1))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-12-15 23:46:42,615 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-12-15 23:46:42,711 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE