./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1381.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -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_1381.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 6dd343d8c842dca5f2bd703f90ecddcb3075588362c6b6e2ad48689abc1295d4 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:47:04,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:47:04,986 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:47:05,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:47:05,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:47:05,011 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:47:05,012 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:47:05,013 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:47:05,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:47:05,015 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:47:05,016 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:47:05,017 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:47:05,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:47:05,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:47:05,019 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:47:05,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:47:05,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:47:05,022 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:47:05,023 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:47:05,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:47:05,026 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:47:05,027 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:47:05,028 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:47:05,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:47:05,030 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:47:05,031 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:47:05,031 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:47:05,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:47:05,032 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:47:05,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:47:05,033 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:47:05,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:47:05,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:47:05,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:47:05,036 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:47:05,036 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:47:05,037 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:47:05,037 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:47:05,037 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:47:05,038 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:47:05,038 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:47:05,039 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 16:47:05,058 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:47:05,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:47:05,059 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:47:05,059 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:47:05,060 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:47:05,060 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:47:05,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:47:05,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:47:05,061 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:47:05,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:47:05,062 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:47:05,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 16:47:05,062 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:47:05,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:47:05,063 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:47:05,063 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:47:05,063 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:47:05,063 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:47:05,064 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:47:05,064 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:47:05,064 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:47:05,064 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:47:05,064 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:47:05,065 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:47:05,065 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:47:05,065 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:47:05,065 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:47:05,066 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:47:05,066 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 16:47:05,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 16:47:05,066 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:47:05,067 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:47:05,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:47:05,067 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dd343d8c842dca5f2bd703f90ecddcb3075588362c6b6e2ad48689abc1295d4 [2022-02-20 16:47:05,285 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:47:05,309 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:47:05,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:47:05,313 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:47:05,313 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:47:05,314 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2022-02-20 16:47:05,395 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5de4780d6/74405d54ef8c4ec9a91e02503d64f80d/FLAG1c72b9485 [2022-02-20 16:47:05,784 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:47:05,785 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2022-02-20 16:47:05,790 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5de4780d6/74405d54ef8c4ec9a91e02503d64f80d/FLAG1c72b9485 [2022-02-20 16:47:06,213 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5de4780d6/74405d54ef8c4ec9a91e02503d64f80d [2022-02-20 16:47:06,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:47:06,218 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:47:06,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:47:06,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:47:06,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:47:06,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:47:06" (1/1) ... [2022-02-20 16:47:06,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d728d28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:47:06, skipping insertion in model container [2022-02-20 16:47:06,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:47:06" (1/1) ... [2022-02-20 16:47:06,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:47:06,242 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:47:06,379 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_1381.c[1242,1255] [2022-02-20 16:47:06,381 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:47:06,391 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:47:06,408 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_1381.c[1242,1255] [2022-02-20 16:47:06,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:47:06,421 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:47:06,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:47:06 WrapperNode [2022-02-20 16:47:06,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:47:06,423 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:47:06,423 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:47:06,423 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:47:06,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:47:06" (1/1) ... [2022-02-20 16:47:06,438 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:47:06" (1/1) ... [2022-02-20 16:47:06,464 INFO L137 Inliner]: procedures = 17, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2022-02-20 16:47:06,464 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:47:06,465 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:47:06,465 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:47:06,465 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:47:06,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:47:06" (1/1) ... [2022-02-20 16:47:06,472 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:47:06" (1/1) ... [2022-02-20 16:47:06,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:47:06" (1/1) ... [2022-02-20 16:47:06,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:47:06" (1/1) ... [2022-02-20 16:47:06,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:47:06" (1/1) ... [2022-02-20 16:47:06,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:47:06" (1/1) ... [2022-02-20 16:47:06,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:47:06" (1/1) ... [2022-02-20 16:47:06,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:47:06,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:47:06,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:47:06,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:47:06,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:47:06" (1/1) ... [2022-02-20 16:47:06,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:47:06,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:47:06,524 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) [2022-02-20 16:47:06,548 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 [2022-02-20 16:47:06,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:47:06,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 16:47:06,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 16:47:06,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-02-20 16:47:06,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-20 16:47:06,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-02-20 16:47:06,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:47:06,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:47:06,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-20 16:47:06,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 16:47:06,636 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:47:06,637 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:47:06,785 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:47:06,792 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:47:06,807 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-02-20 16:47:06,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:47:06 BoogieIcfgContainer [2022-02-20 16:47:06,809 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:47:06,810 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:47:06,810 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:47:06,813 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:47:06,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:47:06" (1/3) ... [2022-02-20 16:47:06,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff6dd9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:47:06, skipping insertion in model container [2022-02-20 16:47:06,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:47:06" (2/3) ... [2022-02-20 16:47:06,814 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ff6dd9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:47:06, skipping insertion in model container [2022-02-20 16:47:06,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:47:06" (3/3) ... [2022-02-20 16:47:06,815 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381.c [2022-02-20 16:47:06,819 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:47:06,835 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 16:47:06,876 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:47:06,885 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 [2022-02-20 16:47:06,894 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 16:47:06,909 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 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) [2022-02-20 16:47:06,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-02-20 16:47:06,913 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:47:06,913 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:47:06,913 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:47:06,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:47:06,918 INFO L85 PathProgramCache]: Analyzing trace with hash 927449971, now seen corresponding path program 1 times [2022-02-20 16:47:06,929 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:47:06,930 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730273740] [2022-02-20 16:47:06,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:47:06,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:47:07,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:47:07,093 INFO L290 TraceCheckUtils]: 0: Hoare triple {20#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(20, 2);call #Ultimate.allocInit(12, 3); {20#true} is VALID [2022-02-20 16:47:07,094 INFO L290 TraceCheckUtils]: 1: Hoare triple {20#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_~x~0#1, main_~y~0#1, main_~res~0#1;main_~x~0#1 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0);main_~y~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;assume { :begin_inline_copysign_float } true;copysign_float_#in~x#1, copysign_float_#in~y#1 := main_~x~0#1, main_~y~0#1;havoc copysign_float_#res#1;havoc copysign_float_#t~mem4#1, copysign_float_~#gf_u~0#1.base, copysign_float_~#gf_u~0#1.offset, copysign_float_#t~mem5#1, copysign_float_~#gf_u~1#1.base, copysign_float_~#gf_u~1#1.offset, copysign_float_#t~mem6#1, copysign_float_~#sf_u~0#1.base, copysign_float_~#sf_u~0#1.offset, copysign_float_~x#1, copysign_float_~y#1, copysign_float_~ix~0#1, copysign_float_~iy~0#1;copysign_float_~x#1 := copysign_float_#in~x#1;copysign_float_~y#1 := copysign_float_#in~y#1;havoc copysign_float_~ix~0#1;havoc copysign_float_~iy~0#1; {20#true} is VALID [2022-02-20 16:47:07,095 INFO L290 TraceCheckUtils]: 2: Hoare triple {20#true} assume !true; {21#false} is VALID [2022-02-20 16:47:07,097 INFO L290 TraceCheckUtils]: 3: Hoare triple {21#false} assume !true; {21#false} is VALID [2022-02-20 16:47:07,103 INFO L290 TraceCheckUtils]: 4: Hoare triple {21#false} assume !true; {21#false} is VALID [2022-02-20 16:47:07,104 INFO L290 TraceCheckUtils]: 5: Hoare triple {21#false} copysign_float_#res#1 := copysign_float_~x#1; {21#false} is VALID [2022-02-20 16:47:07,105 INFO L290 TraceCheckUtils]: 6: Hoare triple {21#false} main_#t~ret8#1 := copysign_float_#res#1;assume { :end_inline_copysign_float } true;main_~res~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1;assume { :begin_inline_isnan_float } true;isnan_float_#in~x#1 := main_~res~0#1;havoc isnan_float_#res#1;havoc isnan_float_~x#1;isnan_float_~x#1 := isnan_float_#in~x#1;isnan_float_#res#1 := (if ~someBinaryFLOATComparisonOperation(isnan_float_~x#1, isnan_float_~x#1) then 1 else 0); {21#false} is VALID [2022-02-20 16:47:07,105 INFO L290 TraceCheckUtils]: 7: Hoare triple {21#false} main_#t~ret9#1 := isnan_float_#res#1;assume { :end_inline_isnan_float } true;assume -2147483648 <= main_#t~ret9#1 && main_#t~ret9#1 <= 2147483647; {21#false} is VALID [2022-02-20 16:47:07,107 INFO L290 TraceCheckUtils]: 8: Hoare triple {21#false} assume 0 == main_#t~ret9#1;havoc main_#t~ret9#1; {21#false} is VALID [2022-02-20 16:47:07,107 INFO L290 TraceCheckUtils]: 9: Hoare triple {21#false} assume !false; {21#false} is VALID [2022-02-20 16:47:07,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:47:07,108 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 16:47:07,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730273740] [2022-02-20 16:47:07,111 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730273740] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:47:07,111 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:47:07,111 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 16:47:07,113 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943584005] [2022-02-20 16:47:07,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:47:07,119 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 [2022-02-20 16:47:07,120 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:47:07,123 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 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) [2022-02-20 16:47:07,155 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:47:07,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 16:47:07,156 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 16:47:07,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 16:47:07,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:47:07,182 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 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) 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) [2022-02-20 16:47:07,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:47:07,226 INFO L93 Difference]: Finished difference Result 32 states and 44 transitions. [2022-02-20 16:47:07,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 16:47:07,227 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 [2022-02-20 16:47:07,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:47:07,228 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2022-02-20 16:47:07,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 44 transitions. [2022-02-20 16:47:07,233 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2022-02-20 16:47:07,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 44 transitions. [2022-02-20 16:47:07,237 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 44 transitions. [2022-02-20 16:47:07,297 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 44 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:47:07,313 INFO L225 Difference]: With dead ends: 32 [2022-02-20 16:47:07,318 INFO L226 Difference]: Without dead ends: 14 [2022-02-20 16:47:07,320 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 [2022-02-20 16:47:07,323 INFO L933 BasicCegarLoop]: 16 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, 16 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 [2022-02-20 16:47:07,324 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 16:47:07,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-02-20 16:47:07,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-02-20 16:47:07,348 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:47:07,349 INFO L82 GeneralOperation]: Start isEquivalent. First operand 14 states. Second operand has 14 states, 13 states have (on average 1.0) internal successors, (13), 13 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) [2022-02-20 16:47:07,349 INFO L74 IsIncluded]: Start isIncluded. First operand 14 states. Second operand has 14 states, 13 states have (on average 1.0) internal successors, (13), 13 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) [2022-02-20 16:47:07,350 INFO L87 Difference]: Start difference. First operand 14 states. Second operand has 14 states, 13 states have (on average 1.0) internal successors, (13), 13 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) [2022-02-20 16:47:07,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:47:07,352 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2022-02-20 16:47:07,352 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2022-02-20 16:47:07,352 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:47:07,353 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:47:07,353 INFO L74 IsIncluded]: Start isIncluded. First operand has 14 states, 13 states have (on average 1.0) internal successors, (13), 13 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) Second operand 14 states. [2022-02-20 16:47:07,353 INFO L87 Difference]: Start difference. First operand has 14 states, 13 states have (on average 1.0) internal successors, (13), 13 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) Second operand 14 states. [2022-02-20 16:47:07,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:47:07,354 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2022-02-20 16:47:07,355 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2022-02-20 16:47:07,355 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:47:07,356 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:47:07,357 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:47:07,357 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:47:07,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0) internal successors, (13), 13 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) [2022-02-20 16:47:07,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2022-02-20 16:47:07,363 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 10 [2022-02-20 16:47:07,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:47:07,364 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2022-02-20 16:47:07,364 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) [2022-02-20 16:47:07,364 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2022-02-20 16:47:07,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-02-20 16:47:07,365 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:47:07,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:47:07,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 16:47:07,370 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:47:07,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:47:07,373 INFO L85 PathProgramCache]: Analyzing trace with hash 1499794425, now seen corresponding path program 1 times [2022-02-20 16:47:07,373 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:47:07,373 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022454694] [2022-02-20 16:47:07,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:47:07,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:47:07,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:47:07,479 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 16:47:07,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:47:07,577 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 16:47:07,577 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 16:47:07,578 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-20 16:47:07,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 16:47:07,582 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-20 16:47:07,584 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 16:47:07,607 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 16:47:07,607 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 16:47:07,608 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2022-02-20 16:47:07,608 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2022-02-20 16:47:07,608 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2022-02-20 16:47:07,608 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2022-02-20 16:47:07,608 WARN L170 areAnnotationChecker]: L21-1 has no Hoare annotation [2022-02-20 16:47:07,608 WARN L170 areAnnotationChecker]: L21-1 has no Hoare annotation [2022-02-20 16:47:07,608 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2022-02-20 16:47:07,609 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2022-02-20 16:47:07,609 WARN L170 areAnnotationChecker]: L26-1 has no Hoare annotation [2022-02-20 16:47:07,609 WARN L170 areAnnotationChecker]: L26-1 has no Hoare annotation [2022-02-20 16:47:07,609 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2022-02-20 16:47:07,609 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2022-02-20 16:47:07,609 WARN L170 areAnnotationChecker]: L26-2 has no Hoare annotation [2022-02-20 16:47:07,609 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation [2022-02-20 16:47:07,610 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2022-02-20 16:47:07,610 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2022-02-20 16:47:07,610 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2022-02-20 16:47:07,610 WARN L170 areAnnotationChecker]: L51 has no Hoare annotation [2022-02-20 16:47:07,610 WARN L170 areAnnotationChecker]: L51 has no Hoare annotation [2022-02-20 16:47:07,610 WARN L170 areAnnotationChecker]: L55 has no Hoare annotation [2022-02-20 16:47:07,610 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 16:47:07,610 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-02-20 16:47:07,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 04:47:07 BoogieIcfgContainer [2022-02-20 16:47:07,612 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 16:47:07,613 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 16:47:07,613 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 16:47:07,614 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 16:47:07,614 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:47:06" (3/4) ... [2022-02-20 16:47:07,617 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-20 16:47:07,617 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 16:47:07,618 INFO L158 Benchmark]: Toolchain (without parser) took 1400.31ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 53.0MB in the beginning and 62.2MB in the end (delta: -9.2MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2022-02-20 16:47:07,619 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 86.0MB. Free memory is still 43.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:47:07,623 INFO L158 Benchmark]: CACSL2BoogieTranslator took 202.47ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 52.7MB in the beginning and 81.7MB in the end (delta: -29.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-20 16:47:07,624 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.78ms. Allocated memory is still 107.0MB. Free memory was 81.7MB in the beginning and 79.6MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-02-20 16:47:07,624 INFO L158 Benchmark]: Boogie Preprocessor took 24.19ms. Allocated memory is still 107.0MB. Free memory was 79.6MB in the beginning and 78.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:47:07,625 INFO L158 Benchmark]: RCFGBuilder took 316.92ms. Allocated memory is still 107.0MB. Free memory was 78.3MB in the beginning and 65.3MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-20 16:47:07,626 INFO L158 Benchmark]: TraceAbstraction took 802.32ms. Allocated memory is still 107.0MB. Free memory was 65.0MB in the beginning and 62.2MB in the end (delta: 2.8MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. [2022-02-20 16:47:07,626 INFO L158 Benchmark]: Witness Printer took 3.92ms. Allocated memory is still 107.0MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:47:07,629 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 86.0MB. Free memory is still 43.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 202.47ms. Allocated memory was 86.0MB in the beginning and 107.0MB in the end (delta: 21.0MB). Free memory was 52.7MB in the beginning and 81.7MB in the end (delta: -29.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.78ms. Allocated memory is still 107.0MB. Free memory was 81.7MB in the beginning and 79.6MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.19ms. Allocated memory is still 107.0MB. Free memory was 79.6MB in the beginning and 78.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 316.92ms. Allocated memory is still 107.0MB. Free memory was 78.3MB in the beginning and 65.3MB in the end (delta: 12.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 802.32ms. Allocated memory is still 107.0MB. Free memory was 65.0MB in the beginning and 62.2MB in the end (delta: 2.8MB). Peak memory consumption was 3.6MB. Max. memory is 16.1GB. * Witness Printer took 3.92ms. Allocated memory is still 107.0MB. Free memory is still 62.2MB. 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: 51]: 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 35, overapproximation of bitwiseOr at line 28, overapproximation of bitwiseAnd at line 28, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L45] float x = 0.0f / 0.0f; [L46] float y = __VERIFIER_nondet_float(); [L47] CALL, EXPR copysign_float(x, y) [L15] __uint32_t ix, iy; VAL [\old(x)=49, \old(y)=51, x=49, y=51] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (ix) = gf_u.word [L22] ieee_float_shape_type gf_u; [L23] gf_u.value = (y) [L24] EXPR gf_u.word [L24] (iy) = gf_u.word [L27] ieee_float_shape_type sf_u; [L28] sf_u.word = ((ix & 0x7fffffff) | (iy & 0x80000000)) [L29] EXPR sf_u.value [L29] (x) = sf_u.value [L31] return x; VAL [\old(x)=49, \old(y)=51, \result=53, ix=52, iy=50, x=53, y=51] [L47] RET, EXPR copysign_float(x, y) [L47] float res = copysign_float(x, y); [L50] CALL, EXPR isnan_float(res) [L35] return x != x; VAL [\old(x)=53, \result=0, x=53] [L50] RET, EXPR isnan_float(res) [L50] COND TRUE !isnan_float(res) [L51] reach_error() VAL [res=53, x=49, y=51] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, 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, 16 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, 16 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=17occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 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 [2022-02-20 16:47:07,664 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 -ea -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_1381.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 6dd343d8c842dca5f2bd703f90ecddcb3075588362c6b6e2ad48689abc1295d4 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:47:09,503 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:47:09,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:47:09,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:47:09,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:47:09,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:47:09,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:47:09,534 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:47:09,535 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:47:09,536 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:47:09,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:47:09,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:47:09,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:47:09,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:47:09,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:47:09,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:47:09,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:47:09,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:47:09,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:47:09,545 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:47:09,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:47:09,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:47:09,549 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:47:09,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:47:09,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:47:09,560 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:47:09,561 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:47:09,561 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:47:09,562 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:47:09,563 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:47:09,563 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:47:09,564 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:47:09,568 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:47:09,569 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:47:09,570 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:47:09,570 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:47:09,571 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:47:09,571 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:47:09,571 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:47:09,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:47:09,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:47:09,576 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-02-20 16:47:09,617 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:47:09,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:47:09,618 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:47:09,618 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:47:09,619 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:47:09,619 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:47:09,619 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:47:09,620 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:47:09,620 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:47:09,620 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:47:09,621 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:47:09,621 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:47:09,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:47:09,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:47:09,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:47:09,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:47:09,622 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-02-20 16:47:09,622 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-02-20 16:47:09,623 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-02-20 16:47:09,623 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:47:09,623 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:47:09,623 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:47:09,624 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:47:09,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:47:09,624 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:47:09,625 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:47:09,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:47:09,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:47:09,625 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:47:09,626 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:47:09,626 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-02-20 16:47:09,626 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-02-20 16:47:09,626 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:47:09,627 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:47:09,627 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:47:09,627 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-20 16:47:09,627 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dd343d8c842dca5f2bd703f90ecddcb3075588362c6b6e2ad48689abc1295d4 [2022-02-20 16:47:09,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:47:09,941 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:47:09,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:47:09,943 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:47:09,944 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:47:09,945 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2022-02-20 16:47:10,002 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dd4fb814/a655392537a545bf956c2038d56d7421/FLAGf56b0917a [2022-02-20 16:47:10,442 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:47:10,442 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2022-02-20 16:47:10,448 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dd4fb814/a655392537a545bf956c2038d56d7421/FLAGf56b0917a [2022-02-20 16:47:10,465 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0dd4fb814/a655392537a545bf956c2038d56d7421 [2022-02-20 16:47:10,467 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:47:10,469 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:47:10,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:47:10,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:47:10,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:47:10,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:47:10" (1/1) ... [2022-02-20 16:47:10,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18a0ec1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:47:10, skipping insertion in model container [2022-02-20 16:47:10,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:47:10" (1/1) ... [2022-02-20 16:47:10,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:47:10,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:47:10,668 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_1381.c[1242,1255] [2022-02-20 16:47:10,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:47:10,684 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:47:10,745 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_1381.c[1242,1255] [2022-02-20 16:47:10,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:47:10,762 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:47:10,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:47:10 WrapperNode [2022-02-20 16:47:10,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:47:10,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:47:10,764 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:47:10,764 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:47:10,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:47:10" (1/1) ... [2022-02-20 16:47:10,787 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:47:10" (1/1) ... [2022-02-20 16:47:10,812 INFO L137 Inliner]: procedures = 20, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 68 [2022-02-20 16:47:10,813 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:47:10,814 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:47:10,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:47:10,814 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:47:10,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:47:10" (1/1) ... [2022-02-20 16:47:10,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:47:10" (1/1) ... [2022-02-20 16:47:10,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:47:10" (1/1) ... [2022-02-20 16:47:10,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:47:10" (1/1) ... [2022-02-20 16:47:10,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:47:10" (1/1) ... [2022-02-20 16:47:10,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:47:10" (1/1) ... [2022-02-20 16:47:10,853 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:47:10" (1/1) ... [2022-02-20 16:47:10,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:47:10,856 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:47:10,856 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:47:10,857 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:47:10,857 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:47:10" (1/1) ... [2022-02-20 16:47:10,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:47:10,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:47:10,896 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) [2022-02-20 16:47:10,904 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 [2022-02-20 16:47:10,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:47:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-02-20 16:47:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-20 16:47:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-02-20 16:47:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-02-20 16:47:10,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:47:10,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:47:10,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-02-20 16:47:10,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-02-20 16:47:10,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-20 16:47:10,989 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:47:10,989 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:47:11,189 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:47:11,194 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:47:11,195 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-02-20 16:47:11,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:47:11 BoogieIcfgContainer [2022-02-20 16:47:11,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:47:11,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:47:11,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:47:11,200 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:47:11,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:47:10" (1/3) ... [2022-02-20 16:47:11,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43b2cc47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:47:11, skipping insertion in model container [2022-02-20 16:47:11,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:47:10" (2/3) ... [2022-02-20 16:47:11,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43b2cc47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:47:11, skipping insertion in model container [2022-02-20 16:47:11,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:47:11" (3/3) ... [2022-02-20 16:47:11,202 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381.c [2022-02-20 16:47:11,206 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:47:11,206 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 16:47:11,240 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:47:11,245 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 [2022-02-20 16:47:11,245 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 16:47:11,267 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 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) [2022-02-20 16:47:11,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-02-20 16:47:11,271 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:47:11,271 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:47:11,272 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:47:11,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:47:11,276 INFO L85 PathProgramCache]: Analyzing trace with hash 927449971, now seen corresponding path program 1 times [2022-02-20 16:47:11,295 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 16:47:11,297 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1348047134] [2022-02-20 16:47:11,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:47:11,298 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 16:47:11,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 16:47:11,301 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) [2022-02-20 16:47:11,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-02-20 16:47:11,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:47:11,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 1 conjunts are in the unsatisfiable core [2022-02-20 16:47:11,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:47:11,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:47:11,470 INFO L290 TraceCheckUtils]: 0: Hoare triple {20#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0bv32, 0bv32;assume 0bv1 == #valid[0bv32];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #Ultimate.allocInit(2bv32, 1bv32);call write~init~intINTTYPE1(48bv8, 1bv32, 0bv32, 1bv32);call write~init~intINTTYPE1(0bv8, 1bv32, 1bv32, 1bv32);call #Ultimate.allocInit(20bv32, 2bv32);call #Ultimate.allocInit(12bv32, 3bv32); {20#true} is VALID [2022-02-20 16:47:11,470 INFO L290 TraceCheckUtils]: 1: Hoare triple {20#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_~x~0#1, main_~y~0#1, main_~res~0#1;main_~x~0#1 := ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~FLOAT(), ~Pluszero~FLOAT());main_~y~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;assume { :begin_inline_copysign_float } true;copysign_float_#in~x#1, copysign_float_#in~y#1 := main_~x~0#1, main_~y~0#1;havoc copysign_float_#res#1;havoc copysign_float_#t~mem4#1, copysign_float_~#gf_u~0#1.base, copysign_float_~#gf_u~0#1.offset, copysign_float_#t~mem5#1, copysign_float_~#gf_u~1#1.base, copysign_float_~#gf_u~1#1.offset, copysign_float_#t~mem6#1, copysign_float_~#sf_u~0#1.base, copysign_float_~#sf_u~0#1.offset, copysign_float_~x#1, copysign_float_~y#1, copysign_float_~ix~0#1, copysign_float_~iy~0#1;copysign_float_~x#1 := copysign_float_#in~x#1;copysign_float_~y#1 := copysign_float_#in~y#1;havoc copysign_float_~ix~0#1;havoc copysign_float_~iy~0#1; {20#true} is VALID [2022-02-20 16:47:11,471 INFO L290 TraceCheckUtils]: 2: Hoare triple {20#true} assume !true; {21#false} is VALID [2022-02-20 16:47:11,472 INFO L290 TraceCheckUtils]: 3: Hoare triple {21#false} assume !true; {21#false} is VALID [2022-02-20 16:47:11,472 INFO L290 TraceCheckUtils]: 4: Hoare triple {21#false} assume !true; {21#false} is VALID [2022-02-20 16:47:11,473 INFO L290 TraceCheckUtils]: 5: Hoare triple {21#false} copysign_float_#res#1 := copysign_float_~x#1; {21#false} is VALID [2022-02-20 16:47:11,474 INFO L290 TraceCheckUtils]: 6: Hoare triple {21#false} main_#t~ret8#1 := copysign_float_#res#1;assume { :end_inline_copysign_float } true;main_~res~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1;assume { :begin_inline_isnan_float } true;isnan_float_#in~x#1 := main_~res~0#1;havoc isnan_float_#res#1;havoc isnan_float_~x#1;isnan_float_~x#1 := isnan_float_#in~x#1;isnan_float_#res#1 := (if !~fp.eq~FLOAT(isnan_float_~x#1, isnan_float_~x#1) then 1bv32 else 0bv32); {21#false} is VALID [2022-02-20 16:47:11,474 INFO L290 TraceCheckUtils]: 7: Hoare triple {21#false} main_#t~ret9#1 := isnan_float_#res#1;assume { :end_inline_isnan_float } true; {21#false} is VALID [2022-02-20 16:47:11,474 INFO L290 TraceCheckUtils]: 8: Hoare triple {21#false} assume 0bv32 == main_#t~ret9#1;havoc main_#t~ret9#1; {21#false} is VALID [2022-02-20 16:47:11,475 INFO L290 TraceCheckUtils]: 9: Hoare triple {21#false} assume !false; {21#false} is VALID [2022-02-20 16:47:11,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:47:11,480 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 16:47:11,481 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 16:47:11,481 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1348047134] [2022-02-20 16:47:11,482 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1348047134] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:47:11,482 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:47:11,482 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 16:47:11,484 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989208084] [2022-02-20 16:47:11,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:47:11,490 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 [2022-02-20 16:47:11,491 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:47:11,493 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 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) [2022-02-20 16:47:11,513 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:47:11,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-20 16:47:11,514 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 16:47:11,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-20 16:47:11,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-20 16:47:11,537 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 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) 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) [2022-02-20 16:47:11,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:47:11,590 INFO L93 Difference]: Finished difference Result 32 states and 44 transitions. [2022-02-20 16:47:11,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 16:47:11,591 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 [2022-02-20 16:47:11,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:47:11,593 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2022-02-20 16:47:11,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 44 transitions. [2022-02-20 16:47:11,600 INFO L82 GeneralOperation]: Start removeUnreachable. 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) [2022-02-20 16:47:11,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 44 transitions. [2022-02-20 16:47:11,606 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 44 transitions. [2022-02-20 16:47:11,659 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 44 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:47:11,667 INFO L225 Difference]: With dead ends: 32 [2022-02-20 16:47:11,667 INFO L226 Difference]: Without dead ends: 14 [2022-02-20 16:47:11,670 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 [2022-02-20 16:47:11,675 INFO L933 BasicCegarLoop]: 16 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, 16 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 [2022-02-20 16:47:11,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-20 16:47:11,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-02-20 16:47:11,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-02-20 16:47:11,700 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:47:11,701 INFO L82 GeneralOperation]: Start isEquivalent. First operand 14 states. Second operand has 14 states, 13 states have (on average 1.0) internal successors, (13), 13 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) [2022-02-20 16:47:11,701 INFO L74 IsIncluded]: Start isIncluded. First operand 14 states. Second operand has 14 states, 13 states have (on average 1.0) internal successors, (13), 13 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) [2022-02-20 16:47:11,702 INFO L87 Difference]: Start difference. First operand 14 states. Second operand has 14 states, 13 states have (on average 1.0) internal successors, (13), 13 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) [2022-02-20 16:47:11,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:47:11,707 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2022-02-20 16:47:11,709 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2022-02-20 16:47:11,709 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:47:11,709 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:47:11,709 INFO L74 IsIncluded]: Start isIncluded. First operand has 14 states, 13 states have (on average 1.0) internal successors, (13), 13 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) Second operand 14 states. [2022-02-20 16:47:11,710 INFO L87 Difference]: Start difference. First operand has 14 states, 13 states have (on average 1.0) internal successors, (13), 13 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) Second operand 14 states. [2022-02-20 16:47:11,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:47:11,712 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2022-02-20 16:47:11,712 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2022-02-20 16:47:11,712 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:47:11,712 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:47:11,713 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:47:11,713 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:47:11,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0) internal successors, (13), 13 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) [2022-02-20 16:47:11,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2022-02-20 16:47:11,719 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 10 [2022-02-20 16:47:11,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:47:11,719 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2022-02-20 16:47:11,720 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) [2022-02-20 16:47:11,720 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2022-02-20 16:47:11,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-02-20 16:47:11,721 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:47:11,721 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-20 16:47:11,742 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-02-20 16:47:11,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-02-20 16:47:11,936 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:47:11,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:47:11,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1499794425, now seen corresponding path program 1 times [2022-02-20 16:47:11,938 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 16:47:11,938 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1224371327] [2022-02-20 16:47:11,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:47:11,939 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 16:47:11,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 16:47:11,940 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) [2022-02-20 16:47:11,942 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-02-20 16:47:12,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:47:12,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 19 conjunts are in the unsatisfiable core [2022-02-20 16:47:12,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:47:12,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:47:12,299 INFO L290 TraceCheckUtils]: 0: Hoare triple {136#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0bv32, 0bv32;assume 0bv1 == #valid[0bv32];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #Ultimate.allocInit(2bv32, 1bv32);call write~init~intINTTYPE1(48bv8, 1bv32, 0bv32, 1bv32);call write~init~intINTTYPE1(0bv8, 1bv32, 1bv32, 1bv32);call #Ultimate.allocInit(20bv32, 2bv32);call #Ultimate.allocInit(12bv32, 3bv32); {136#true} is VALID [2022-02-20 16:47:12,302 INFO L290 TraceCheckUtils]: 1: Hoare triple {136#true} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet7#1, main_#t~ret8#1, main_#t~ret9#1, main_~x~0#1, main_~y~0#1, main_~res~0#1;main_~x~0#1 := ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~FLOAT(), ~Pluszero~FLOAT());main_~y~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;assume { :begin_inline_copysign_float } true;copysign_float_#in~x#1, copysign_float_#in~y#1 := main_~x~0#1, main_~y~0#1;havoc copysign_float_#res#1;havoc copysign_float_#t~mem4#1, copysign_float_~#gf_u~0#1.base, copysign_float_~#gf_u~0#1.offset, copysign_float_#t~mem5#1, copysign_float_~#gf_u~1#1.base, copysign_float_~#gf_u~1#1.offset, copysign_float_#t~mem6#1, copysign_float_~#sf_u~0#1.base, copysign_float_~#sf_u~0#1.offset, copysign_float_~x#1, copysign_float_~y#1, copysign_float_~ix~0#1, copysign_float_~iy~0#1;copysign_float_~x#1 := copysign_float_#in~x#1;copysign_float_~y#1 := copysign_float_#in~y#1;havoc copysign_float_~ix~0#1;havoc copysign_float_~iy~0#1; {144#(exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_copysign_float_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2022-02-20 16:47:12,309 INFO L290 TraceCheckUtils]: 2: Hoare triple {144#(exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_copysign_float_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} call copysign_float_~#gf_u~0#1.base, copysign_float_~#gf_u~0#1.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(copysign_float_~x#1, copysign_float_~#gf_u~0#1.base, copysign_float_~#gf_u~0#1.offset, 4bv32);call copysign_float_#t~mem4#1 := read~intINTTYPE4(copysign_float_~#gf_u~0#1.base, copysign_float_~#gf_u~0#1.offset, 4bv32);copysign_float_~ix~0#1 := copysign_float_#t~mem4#1;havoc copysign_float_#t~mem4#1;call ULTIMATE.dealloc(copysign_float_~#gf_u~0#1.base, copysign_float_~#gf_u~0#1.offset);havoc copysign_float_~#gf_u~0#1.base, copysign_float_~#gf_u~0#1.offset; {148#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) |ULTIMATE.start_copysign_float_~ix~0#1|) ((_ extract 30 23) |ULTIMATE.start_copysign_float_~ix~0#1|) ((_ extract 22 0) |ULTIMATE.start_copysign_float_~ix~0#1|)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2022-02-20 16:47:12,310 INFO L290 TraceCheckUtils]: 3: Hoare triple {148#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) |ULTIMATE.start_copysign_float_~ix~0#1|) ((_ extract 30 23) |ULTIMATE.start_copysign_float_~ix~0#1|) ((_ extract 22 0) |ULTIMATE.start_copysign_float_~ix~0#1|)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} goto; {148#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) |ULTIMATE.start_copysign_float_~ix~0#1|) ((_ extract 30 23) |ULTIMATE.start_copysign_float_~ix~0#1|) ((_ extract 22 0) |ULTIMATE.start_copysign_float_~ix~0#1|)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2022-02-20 16:47:12,311 INFO L290 TraceCheckUtils]: 4: Hoare triple {148#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) |ULTIMATE.start_copysign_float_~ix~0#1|) ((_ extract 30 23) |ULTIMATE.start_copysign_float_~ix~0#1|) ((_ extract 22 0) |ULTIMATE.start_copysign_float_~ix~0#1|)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} call copysign_float_~#gf_u~1#1.base, copysign_float_~#gf_u~1#1.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(copysign_float_~y#1, copysign_float_~#gf_u~1#1.base, copysign_float_~#gf_u~1#1.offset, 4bv32);call copysign_float_#t~mem5#1 := read~intINTTYPE4(copysign_float_~#gf_u~1#1.base, copysign_float_~#gf_u~1#1.offset, 4bv32);copysign_float_~iy~0#1 := copysign_float_#t~mem5#1;havoc copysign_float_#t~mem5#1;call ULTIMATE.dealloc(copysign_float_~#gf_u~1#1.base, copysign_float_~#gf_u~1#1.offset);havoc copysign_float_~#gf_u~1#1.base, copysign_float_~#gf_u~1#1.offset; {148#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) |ULTIMATE.start_copysign_float_~ix~0#1|) ((_ extract 30 23) |ULTIMATE.start_copysign_float_~ix~0#1|) ((_ extract 22 0) |ULTIMATE.start_copysign_float_~ix~0#1|)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2022-02-20 16:47:12,311 INFO L290 TraceCheckUtils]: 5: Hoare triple {148#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) |ULTIMATE.start_copysign_float_~ix~0#1|) ((_ extract 30 23) |ULTIMATE.start_copysign_float_~ix~0#1|) ((_ extract 22 0) |ULTIMATE.start_copysign_float_~ix~0#1|)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} goto; {148#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) |ULTIMATE.start_copysign_float_~ix~0#1|) ((_ extract 30 23) |ULTIMATE.start_copysign_float_~ix~0#1|) ((_ extract 22 0) |ULTIMATE.start_copysign_float_~ix~0#1|)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2022-02-20 16:47:12,314 INFO L290 TraceCheckUtils]: 6: Hoare triple {148#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) |ULTIMATE.start_copysign_float_~ix~0#1|) ((_ extract 30 23) |ULTIMATE.start_copysign_float_~ix~0#1|) ((_ extract 22 0) |ULTIMATE.start_copysign_float_~ix~0#1|)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} call copysign_float_~#sf_u~0#1.base, copysign_float_~#sf_u~0#1.offset := #Ultimate.allocOnStack(4bv32);call write~intINTTYPE4(~bvor32(~bvand32(2147483647bv32, copysign_float_~ix~0#1), ~bvand32(2147483648bv32, copysign_float_~iy~0#1)), copysign_float_~#sf_u~0#1.base, copysign_float_~#sf_u~0#1.offset, 4bv32);call copysign_float_#t~mem6#1 := read~intFLOATTYPE4(copysign_float_~#sf_u~0#1.base, copysign_float_~#sf_u~0#1.offset, 4bv32);copysign_float_~x#1 := copysign_float_#t~mem6#1;havoc copysign_float_#t~mem6#1;call ULTIMATE.dealloc(copysign_float_~#sf_u~0#1.base, copysign_float_~#sf_u~0#1.offset);havoc copysign_float_~#sf_u~0#1.base, copysign_float_~#sf_u~0#1.offset; {144#(exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_copysign_float_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2022-02-20 16:47:12,315 INFO L290 TraceCheckUtils]: 7: Hoare triple {144#(exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_copysign_float_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} goto; {144#(exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_copysign_float_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2022-02-20 16:47:12,316 INFO L290 TraceCheckUtils]: 8: Hoare triple {144#(exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_copysign_float_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} copysign_float_#res#1 := copysign_float_~x#1; {167#(exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_copysign_float_#res#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2022-02-20 16:47:12,317 INFO L290 TraceCheckUtils]: 9: Hoare triple {167#(exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_copysign_float_#res#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} main_#t~ret8#1 := copysign_float_#res#1;assume { :end_inline_copysign_float } true;main_~res~0#1 := main_#t~ret8#1;havoc main_#t~ret8#1;assume { :begin_inline_isnan_float } true;isnan_float_#in~x#1 := main_~res~0#1;havoc isnan_float_#res#1;havoc isnan_float_~x#1;isnan_float_~x#1 := isnan_float_#in~x#1;isnan_float_#res#1 := (if !~fp.eq~FLOAT(isnan_float_~x#1, isnan_float_~x#1) then 1bv32 else 0bv32); {171#(= (_ bv1 32) |ULTIMATE.start_isnan_float_#res#1|)} is VALID [2022-02-20 16:47:12,318 INFO L290 TraceCheckUtils]: 10: Hoare triple {171#(= (_ bv1 32) |ULTIMATE.start_isnan_float_#res#1|)} main_#t~ret9#1 := isnan_float_#res#1;assume { :end_inline_isnan_float } true; {175#(= (_ bv1 32) |ULTIMATE.start_main_#t~ret9#1|)} is VALID [2022-02-20 16:47:12,319 INFO L290 TraceCheckUtils]: 11: Hoare triple {175#(= (_ bv1 32) |ULTIMATE.start_main_#t~ret9#1|)} assume 0bv32 == main_#t~ret9#1;havoc main_#t~ret9#1; {137#false} is VALID [2022-02-20 16:47:12,319 INFO L290 TraceCheckUtils]: 12: Hoare triple {137#false} assume !false; {137#false} is VALID [2022-02-20 16:47:12,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:47:12,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 16:47:12,320 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 16:47:12,320 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1224371327] [2022-02-20 16:47:12,320 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1224371327] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:47:12,320 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:47:12,320 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-02-20 16:47:12,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778374949] [2022-02-20 16:47:12,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:47:12,322 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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 [2022-02-20 16:47:12,322 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:47:12,323 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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) [2022-02-20 16:47:12,351 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:47:12,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-02-20 16:47:12,351 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 16:47:12,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-02-20 16:47:12,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-02-20 16:47:12,352 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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) [2022-02-20 16:47:12,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:47:12,440 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2022-02-20 16:47:12,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-20 16:47:12,440 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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 [2022-02-20 16:47:12,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:47:12,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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) [2022-02-20 16:47:12,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 13 transitions. [2022-02-20 16:47:12,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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) [2022-02-20 16:47:12,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 13 transitions. [2022-02-20 16:47:12,442 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 13 transitions. [2022-02-20 16:47:12,476 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:47:12,476 INFO L225 Difference]: With dead ends: 14 [2022-02-20 16:47:12,476 INFO L226 Difference]: Without dead ends: 0 [2022-02-20 16:47:12,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-02-20 16:47:12,477 INFO L933 BasicCegarLoop]: 6 mSDtfsCounter, 1 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-20 16:47:12,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 28 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 9 Unchecked, 0.0s Time] [2022-02-20 16:47:12,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-20 16:47:12,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-20 16:47:12,478 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:47:12,478 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second 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) [2022-02-20 16:47:12,478 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second 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) [2022-02-20 16:47:12,478 INFO L87 Difference]: Start difference. First operand 0 states. Second 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) [2022-02-20 16:47:12,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:47:12,478 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-02-20 16:47:12,478 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-20 16:47:12,479 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:47:12,479 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:47:12,479 INFO L74 IsIncluded]: Start isIncluded. First 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) Second operand 0 states. [2022-02-20 16:47:12,479 INFO L87 Difference]: Start difference. First 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) Second operand 0 states. [2022-02-20 16:47:12,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:47:12,479 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-02-20 16:47:12,479 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-20 16:47:12,479 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:47:12,479 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:47:12,479 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:47:12,479 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:47:12,479 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) [2022-02-20 16:47:12,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-20 16:47:12,480 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2022-02-20 16:47:12,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:47:12,480 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-20 16:47:12,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 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) [2022-02-20 16:47:12,480 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-20 16:47:12,480 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:47:12,482 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-20 16:47:12,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-02-20 16:47:12,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-02-20 16:47:12,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-02-20 16:47:12,699 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-02-20 16:47:12,700 INFO L854 garLoopResultBuilder]: At program point L31(lines 14 32) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_copysign_float_#res#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) [2022-02-20 16:47:12,700 INFO L858 garLoopResultBuilder]: For program point L21(lines 21 25) no Hoare annotation was computed. [2022-02-20 16:47:12,700 INFO L858 garLoopResultBuilder]: For program point L21-1(lines 14 32) no Hoare annotation was computed. [2022-02-20 16:47:12,700 INFO L858 garLoopResultBuilder]: For program point L50(lines 50 53) no Hoare annotation was computed. [2022-02-20 16:47:12,701 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-02-20 16:47:12,701 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-02-20 16:47:12,701 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-02-20 16:47:12,701 INFO L858 garLoopResultBuilder]: For program point L26(lines 26 30) no Hoare annotation was computed. [2022-02-20 16:47:12,701 INFO L858 garLoopResultBuilder]: For program point L26-1(lines 14 32) no Hoare annotation was computed. [2022-02-20 16:47:12,701 INFO L858 garLoopResultBuilder]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2022-02-20 16:47:12,702 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 51) no Hoare annotation was computed. [2022-02-20 16:47:12,702 INFO L861 garLoopResultBuilder]: At program point L55(lines 37 56) the Hoare annotation is: true [2022-02-20 16:47:12,702 INFO L858 garLoopResultBuilder]: For program point L51(line 51) no Hoare annotation was computed. [2022-02-20 16:47:12,702 INFO L858 garLoopResultBuilder]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2022-02-20 16:47:12,702 INFO L854 garLoopResultBuilder]: At program point L16-2(lines 16 20) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_copysign_float_~x#1| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) [2022-02-20 16:47:12,703 INFO L854 garLoopResultBuilder]: At program point L35(line 35) the Hoare annotation is: (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res#1|) [2022-02-20 16:47:12,709 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-02-20 16:47:12,710 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 16:47:12,714 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 16:47:12,714 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 16:47:12,714 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2022-02-20 16:47:12,715 WARN L170 areAnnotationChecker]: L21-1 has no Hoare annotation [2022-02-20 16:47:12,717 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2022-02-20 16:47:12,717 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2022-02-20 16:47:12,717 WARN L170 areAnnotationChecker]: L21-1 has no Hoare annotation [2022-02-20 16:47:12,717 WARN L170 areAnnotationChecker]: L21-1 has no Hoare annotation [2022-02-20 16:47:12,717 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2022-02-20 16:47:12,717 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2022-02-20 16:47:12,717 WARN L170 areAnnotationChecker]: L26-1 has no Hoare annotation [2022-02-20 16:47:12,718 WARN L170 areAnnotationChecker]: L26-1 has no Hoare annotation [2022-02-20 16:47:12,718 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2022-02-20 16:47:12,718 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2022-02-20 16:47:12,718 WARN L170 areAnnotationChecker]: L26-2 has no Hoare annotation [2022-02-20 16:47:12,720 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2022-02-20 16:47:12,720 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2022-02-20 16:47:12,721 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2022-02-20 16:47:12,721 WARN L170 areAnnotationChecker]: L51 has no Hoare annotation [2022-02-20 16:47:12,721 WARN L170 areAnnotationChecker]: L51 has no Hoare annotation [2022-02-20 16:47:12,721 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 16:47:12,721 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 16:47:12,721 INFO L163 areAnnotationChecker]: CFG has 1 edges. 1 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-02-20 16:47:12,723 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-02-20 16:47:12,726 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-02-20 16:47:12,727 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-02-20 16:47:12,727 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-02-20 16:47:12,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 04:47:12 BoogieIcfgContainer [2022-02-20 16:47:12,728 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 16:47:12,729 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 16:47:12,729 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 16:47:12,729 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 16:47:12,730 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:47:11" (3/4) ... [2022-02-20 16:47:12,732 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-02-20 16:47:12,738 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-02-20 16:47:12,738 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-02-20 16:47:12,739 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-02-20 16:47:12,739 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-02-20 16:47:12,757 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2022-02-20 16:47:12,760 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-20 16:47:12,760 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 16:47:12,761 INFO L158 Benchmark]: Toolchain (without parser) took 2292.00ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 55.0MB in the beginning and 39.5MB in the end (delta: 15.5MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2022-02-20 16:47:12,761 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 73.4MB. Free memory was 53.9MB in the beginning and 53.9MB in the end (delta: 32.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:47:12,762 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.15ms. Allocated memory is still 73.4MB. Free memory was 54.8MB in the beginning and 55.0MB in the end (delta: -142.5kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-02-20 16:47:12,762 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.64ms. Allocated memory is still 73.4MB. Free memory was 54.7MB in the beginning and 53.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:47:12,762 INFO L158 Benchmark]: Boogie Preprocessor took 41.84ms. Allocated memory is still 73.4MB. Free memory was 53.1MB in the beginning and 51.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:47:12,763 INFO L158 Benchmark]: RCFGBuilder took 340.02ms. Allocated memory is still 73.4MB. Free memory was 51.4MB in the beginning and 39.8MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-20 16:47:12,763 INFO L158 Benchmark]: TraceAbstraction took 1530.57ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 39.3MB in the beginning and 41.6MB in the end (delta: -2.2MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2022-02-20 16:47:12,763 INFO L158 Benchmark]: Witness Printer took 31.60ms. Allocated memory is still 88.1MB. Free memory was 41.6MB in the beginning and 39.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:47:12,765 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 73.4MB. Free memory was 53.9MB in the beginning and 53.9MB in the end (delta: 32.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.15ms. Allocated memory is still 73.4MB. Free memory was 54.8MB in the beginning and 55.0MB in the end (delta: -142.5kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.64ms. Allocated memory is still 73.4MB. Free memory was 54.7MB in the beginning and 53.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.84ms. Allocated memory is still 73.4MB. Free memory was 53.1MB in the beginning and 51.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 340.02ms. Allocated memory is still 73.4MB. Free memory was 51.4MB in the beginning and 39.8MB in the end (delta: 11.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1530.57ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 39.3MB in the beginning and 41.6MB in the end (delta: -2.2MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * Witness Printer took 31.60ms. Allocated memory is still 88.1MB. Free memory was 41.6MB in the beginning and 39.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * 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: 51]: 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, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 44 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 9 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 22 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 18 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 8 QuantifiedInterpolants, 97 SizeOfPredicates, 14 NumberOfNonLiveVariables, 97 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant [2022-02-20 16:47:12,771 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-02-20 16:47:12,772 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 14]: Loop Invariant [2022-02-20 16:47:12,772 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-02-20 16:47:12,772 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: \result == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: 1bv32 == \result - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-02-20 16:47:12,801 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 Writing output log to file Ultimate.log Result: TRUE