./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1052b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1052b.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 cc877de57a66c963d01f9b35f68134e8e891b009 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1052b.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 cc877de57a66c963d01f9b35f68134e8e891b009 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 08:47:11,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 08:47:11,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 08:47:11,665 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-29 08:47:11,665 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-29 08:47:11,669 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-29 08:47:11,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-29 08:47:11,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-29 08:47:11,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-29 08:47:11,681 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-29 08:47:11,682 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-29 08:47:11,683 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-29 08:47:11,684 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 08:47:11,685 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 08:47:11,687 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 08:47:11,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 08:47:11,693 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 08:47:11,694 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 08:47:11,695 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 08:47:11,697 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 08:47:11,700 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 08:47:11,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 08:47:11,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 08:47:11,702 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 08:47:11,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 08:47:11,705 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 08:47:11,705 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 08:47:11,706 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 08:47:11,707 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 08:47:11,708 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 08:47:11,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 08:47:11,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 08:47:11,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 08:47:11,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 08:47:11,711 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 08:47:11,711 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 08:47:11,711 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 08:47:11,712 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 08:47:11,712 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 08:47:11,713 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 08:47:11,714 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 08:47:11,714 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-29 08:47:11,743 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 08:47:11,744 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 08:47:11,745 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 08:47:11,745 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 08:47:11,746 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 08:47:11,746 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 08:47:11,746 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 08:47:11,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 08:47:11,747 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 08:47:11,747 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-29 08:47:11,747 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 08:47:11,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 08:47:11,748 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 08:47:11,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 08:47:11,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 08:47:11,748 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 08:47:11,748 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 08:47:11,748 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 08:47:11,749 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 08:47:11,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 08:47:11,749 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 08:47:11,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 08:47:11,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 08:47:11,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 08:47:11,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 08:47:11,750 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 08:47:11,750 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-29 08:47:11,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-29 08:47:11,750 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 08:47:11,750 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 08:47:11,750 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc877de57a66c963d01f9b35f68134e8e891b009 [2021-08-29 08:47:12,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 08:47:12,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 08:47:12,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 08:47:12,055 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 08:47:12,056 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 08:47:12,057 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1052b.c [2021-08-29 08:47:12,109 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5a81830f/6fa88986703243db84326fea36753764/FLAGc1a3e7fc5 [2021-08-29 08:47:12,488 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 08:47:12,489 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1052b.c [2021-08-29 08:47:12,495 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5a81830f/6fa88986703243db84326fea36753764/FLAGc1a3e7fc5 [2021-08-29 08:47:12,506 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5a81830f/6fa88986703243db84326fea36753764 [2021-08-29 08:47:12,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 08:47:12,509 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 08:47:12,510 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 08:47:12,510 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 08:47:12,513 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 08:47:12,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:47:12" (1/1) ... [2021-08-29 08:47:12,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a5e28d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:12, skipping insertion in model container [2021-08-29 08:47:12,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:47:12" (1/1) ... [2021-08-29 08:47:12,519 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 08:47:12,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 08:47:12,673 WARN L228 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_1052b.c[1778,1791] [2021-08-29 08:47:12,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 08:47:12,694 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 08:47:12,723 WARN L228 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_1052b.c[1778,1791] [2021-08-29 08:47:12,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 08:47:12,731 INFO L208 MainTranslator]: Completed translation [2021-08-29 08:47:12,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:12 WrapperNode [2021-08-29 08:47:12,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 08:47:12,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 08:47:12,748 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 08:47:12,749 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 08:47:12,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:12" (1/1) ... [2021-08-29 08:47:12,781 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:12" (1/1) ... [2021-08-29 08:47:12,808 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 08:47:12,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 08:47:12,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 08:47:12,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 08:47:12,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:12" (1/1) ... [2021-08-29 08:47:12,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:12" (1/1) ... [2021-08-29 08:47:12,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:12" (1/1) ... [2021-08-29 08:47:12,830 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:12" (1/1) ... [2021-08-29 08:47:12,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:12" (1/1) ... [2021-08-29 08:47:12,836 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:12" (1/1) ... [2021-08-29 08:47:12,837 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:12" (1/1) ... [2021-08-29 08:47:12,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 08:47:12,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 08:47:12,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 08:47:12,850 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 08:47:12,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:12" (1/1) ... [2021-08-29 08:47:12,855 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 08:47:12,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 08:47:12,883 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 08:47:12,904 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 [2021-08-29 08:47:12,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-29 08:47:12,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 08:47:12,925 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-08-29 08:47:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-08-29 08:47:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-08-29 08:47:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 08:47:12,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 08:47:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-08-29 08:47:12,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 08:47:13,078 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 08:47:13,092 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-08-29 08:47:13,094 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:47:13 BoogieIcfgContainer [2021-08-29 08:47:13,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 08:47:13,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 08:47:13,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 08:47:13,098 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 08:47:13,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 08:47:12" (1/3) ... [2021-08-29 08:47:13,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40139dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:47:13, skipping insertion in model container [2021-08-29 08:47:13,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:12" (2/3) ... [2021-08-29 08:47:13,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40139dd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:47:13, skipping insertion in model container [2021-08-29 08:47:13,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:47:13" (3/3) ... [2021-08-29 08:47:13,100 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052b.c [2021-08-29 08:47:13,103 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 08:47:13,104 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 08:47:13,137 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 08:47:13,143 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 08:47:13,144 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 08:47:13,157 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 28 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:13,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-29 08:47:13,162 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:47:13,163 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:47:13,163 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:47:13,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:47:13,169 INFO L82 PathProgramCache]: Analyzing trace with hash -2064187560, now seen corresponding path program 1 times [2021-08-29 08:47:13,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 08:47:13,178 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566829514] [2021-08-29 08:47:13,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:47:13,179 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 08:47:13,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:47:13,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:13,302 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-29 08:47:13,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566829514] [2021-08-29 08:47:13,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566829514] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-29 08:47:13,303 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:47:13,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-29 08:47:13,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328408174] [2021-08-29 08:47:13,307 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 08:47:13,308 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-29 08:47:13,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 08:47:13,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 08:47:13,326 INFO L87 Difference]: Start difference. First operand has 29 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 28 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:13,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:47:13,374 INFO L93 Difference]: Finished difference Result 56 states and 86 transitions. [2021-08-29 08:47:13,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 08:47:13,376 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-29 08:47:13,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:47:13,382 INFO L225 Difference]: With dead ends: 56 [2021-08-29 08:47:13,382 INFO L226 Difference]: Without dead ends: 26 [2021-08-29 08:47:13,384 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 08:47:13,390 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.26ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.14ms IncrementalHoareTripleChecker+Time [2021-08-29 08:47:13,391 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 37 Unknown, 0 Unchecked, 0.26ms Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 37.14ms Time] [2021-08-29 08:47:13,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-08-29 08:47:13,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-08-29 08:47:13,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.36) internal successors, (34), 25 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:13,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2021-08-29 08:47:13,413 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 12 [2021-08-29 08:47:13,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:47:13,413 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2021-08-29 08:47:13,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:13,414 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2021-08-29 08:47:13,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-08-29 08:47:13,414 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:47:13,415 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:47:13,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-29 08:47:13,415 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:47:13,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:47:13,416 INFO L82 PathProgramCache]: Analyzing trace with hash -1026834198, now seen corresponding path program 1 times [2021-08-29 08:47:13,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-29 08:47:13,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259050946] [2021-08-29 08:47:13,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:47:13,417 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-29 08:47:13,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 08:47:13,459 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-29 08:47:13,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-29 08:47:13,498 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-29 08:47:13,498 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-29 08:47:13,500 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 08:47:13,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-29 08:47:13,505 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 08:47:13,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 08:47:13 BoogieIcfgContainer [2021-08-29 08:47:13,524 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 08:47:13,525 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 08:47:13,525 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 08:47:13,525 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 08:47:13,525 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:47:13" (3/4) ... [2021-08-29 08:47:13,527 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-29 08:47:13,528 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 08:47:13,528 INFO L158 Benchmark]: Toolchain (without parser) took 1018.85ms. Allocated memory was 69.2MB in the beginning and 96.5MB in the end (delta: 27.3MB). Free memory was 50.1MB in the beginning and 56.0MB in the end (delta: -5.9MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2021-08-29 08:47:13,529 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 69.2MB. Free memory was 51.4MB in the beginning and 51.4MB in the end (delta: 48.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 08:47:13,529 INFO L158 Benchmark]: CACSL2BoogieTranslator took 221.46ms. Allocated memory is still 69.2MB. Free memory was 49.9MB in the beginning and 39.0MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-08-29 08:47:13,530 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.11ms. Allocated memory is still 69.2MB. Free memory was 39.0MB in the beginning and 52.4MB in the end (delta: -13.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 08:47:13,530 INFO L158 Benchmark]: Boogie Preprocessor took 40.66ms. Allocated memory is still 69.2MB. Free memory was 52.4MB in the beginning and 51.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 08:47:13,530 INFO L158 Benchmark]: RCFGBuilder took 244.76ms. Allocated memory is still 69.2MB. Free memory was 50.9MB in the beginning and 40.7MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-08-29 08:47:13,531 INFO L158 Benchmark]: TraceAbstraction took 428.56ms. Allocated memory was 69.2MB in the beginning and 96.5MB in the end (delta: 27.3MB). Free memory was 40.2MB in the beginning and 56.5MB in the end (delta: -16.3MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2021-08-29 08:47:13,531 INFO L158 Benchmark]: Witness Printer took 3.07ms. Allocated memory is still 96.5MB. Free memory was 56.5MB in the beginning and 56.0MB in the end (delta: 460.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-29 08:47:13,533 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 69.2MB. Free memory was 51.4MB in the beginning and 51.4MB in the end (delta: 48.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 221.46ms. Allocated memory is still 69.2MB. Free memory was 49.9MB in the beginning and 39.0MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.11ms. Allocated memory is still 69.2MB. Free memory was 39.0MB in the beginning and 52.4MB in the end (delta: -13.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.66ms. Allocated memory is still 69.2MB. Free memory was 52.4MB in the beginning and 51.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 244.76ms. Allocated memory is still 69.2MB. Free memory was 50.9MB in the beginning and 40.7MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 428.56ms. Allocated memory was 69.2MB in the beginning and 96.5MB in the end (delta: 27.3MB). Free memory was 40.2MB in the beginning and 56.5MB in the end (delta: -16.3MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * Witness Printer took 3.07ms. Allocated memory is still 96.5MB. Free memory was 56.5MB in the beginning and 56.0MB in the end (delta: 460.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 82]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 77, overapproximation of bitwiseAnd at line 66. Possible FailurePath: [L13] static const float huge_floor = 1.0e30; VAL [huge_floor=1000000000000000000000000000000] [L77] float x = -1.0f / 0.0f; [L16] __int32_t i0, j0; [L17] __uint32_t i, ix; VAL [huge_floor=1000000000000000000000000000000] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L23] ix = (i0 & 0x7fffffff) [L24] j0 = (ix >> 23) - 0x7f VAL [huge_floor=1000000000000000000000000000000] [L25] COND FALSE !(j0 < 23) VAL [huge_floor=1000000000000000000000000000000] [L45] COND FALSE !(!((ix) < 0x7f800000L)) [L48] return x; VAL [huge_floor=1000000000000000000000000000000] [L78] float res = floor_float(x); [L60] __int32_t ix; VAL [huge_floor=1000000000000000000000000000000] [L62] ieee_float_shape_type gf_u; [L63] gf_u.value = (x) [L64] EXPR gf_u.word [L64] (ix) = gf_u.word [L66] ix &= 0x7fffffff [L67] return ((ix) == 0x7f800000L); VAL [huge_floor=1000000000000000000000000000000] [L81] COND TRUE !isinf_float(res) [L82] reach_error() VAL [huge_floor=1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 369.32ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 9.30ms, AutomataDifference: 84.27ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 9.26ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 37.14ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 29.42ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 37 IncrementalHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 37 mSolverCounterSat, 0.26ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.02ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 11.98ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 6.82ms SsaConstructionTime, 52.76ms SatisfiabilityAnalysisTime, 44.51ms InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-29 08:47:13,561 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... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-29 08:47:15,482 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-29 08:47:15,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-29 08:47:15,503 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-29 08:47:15,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-29 08:47:15,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-29 08:47:15,518 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-29 08:47:15,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-29 08:47:15,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-29 08:47:15,520 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-29 08:47:15,521 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-29 08:47:15,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-29 08:47:15,523 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-29 08:47:15,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-29 08:47:15,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-29 08:47:15,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-29 08:47:15,540 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-29 08:47:15,541 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-29 08:47:15,541 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-29 08:47:15,541 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-29 08:47:15,542 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-29 08:47:15,542 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-29 08:47:15,543 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-29 08:47:15,543 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-29 08:47:15,544 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-29 08:47:15,544 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-29 08:47:15,545 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-29 08:47:15,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-29 08:47:15,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-29 08:47:15,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-29 08:47:15,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-29 08:47:15,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-29 08:47:15,547 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-29 08:47:15,548 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-08-29 08:47:15,563 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-29 08:47:15,563 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-29 08:47:15,564 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-29 08:47:15,564 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-29 08:47:15,565 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-29 08:47:15,565 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-29 08:47:15,565 INFO L138 SettingsManager]: * Use SBE=true [2021-08-29 08:47:15,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-29 08:47:15,565 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-29 08:47:15,566 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-29 08:47:15,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-29 08:47:15,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-29 08:47:15,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-29 08:47:15,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-29 08:47:15,566 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-29 08:47:15,566 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-29 08:47:15,567 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-29 08:47:15,567 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-29 08:47:15,567 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-29 08:47:15,567 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-29 08:47:15,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-29 08:47:15,567 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-29 08:47:15,568 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-29 08:47:15,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 08:47:15,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-29 08:47:15,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-29 08:47:15,568 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-29 08:47:15,568 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-29 08:47:15,568 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-29 08:47:15,569 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-29 08:47:15,569 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-29 08:47:15,569 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-29 08:47:15,569 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc877de57a66c963d01f9b35f68134e8e891b009 [2021-08-29 08:47:15,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-29 08:47:15,774 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-29 08:47:15,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-29 08:47:15,777 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-29 08:47:15,777 INFO L275 PluginConnector]: CDTParser initialized [2021-08-29 08:47:15,778 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1052b.c [2021-08-29 08:47:15,813 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0496f8f9/46845c1a067447a1b8bf6a5cafa2c38d/FLAGeff951c56 [2021-08-29 08:47:16,113 INFO L306 CDTParser]: Found 1 translation units. [2021-08-29 08:47:16,113 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1052b.c [2021-08-29 08:47:16,121 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0496f8f9/46845c1a067447a1b8bf6a5cafa2c38d/FLAGeff951c56 [2021-08-29 08:47:16,545 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0496f8f9/46845c1a067447a1b8bf6a5cafa2c38d [2021-08-29 08:47:16,551 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-29 08:47:16,556 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-29 08:47:16,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-29 08:47:16,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-29 08:47:16,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-29 08:47:16,572 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:47:16" (1/1) ... [2021-08-29 08:47:16,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54de77be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:16, skipping insertion in model container [2021-08-29 08:47:16,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 08:47:16" (1/1) ... [2021-08-29 08:47:16,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-29 08:47:16,602 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-29 08:47:16,803 WARN L228 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_1052b.c[1778,1791] [2021-08-29 08:47:16,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 08:47:16,820 INFO L203 MainTranslator]: Completed pre-run [2021-08-29 08:47:16,865 WARN L228 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_1052b.c[1778,1791] [2021-08-29 08:47:16,865 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-29 08:47:16,908 INFO L208 MainTranslator]: Completed translation [2021-08-29 08:47:16,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:16 WrapperNode [2021-08-29 08:47:16,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-29 08:47:16,919 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-29 08:47:16,919 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-29 08:47:16,919 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-29 08:47:16,924 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:16" (1/1) ... [2021-08-29 08:47:16,939 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:16" (1/1) ... [2021-08-29 08:47:16,960 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-29 08:47:16,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-29 08:47:16,961 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-29 08:47:16,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-29 08:47:16,967 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:16" (1/1) ... [2021-08-29 08:47:16,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:16" (1/1) ... [2021-08-29 08:47:16,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:16" (1/1) ... [2021-08-29 08:47:16,976 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:16" (1/1) ... [2021-08-29 08:47:16,996 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:16" (1/1) ... [2021-08-29 08:47:16,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:16" (1/1) ... [2021-08-29 08:47:17,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:16" (1/1) ... [2021-08-29 08:47:17,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-29 08:47:17,009 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-29 08:47:17,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-29 08:47:17,010 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-29 08:47:17,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:16" (1/1) ... [2021-08-29 08:47:17,016 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-29 08:47:17,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-29 08:47:17,033 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-29 08:47:17,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-29 08:47:17,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-08-29 08:47:17,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-29 08:47:17,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-08-29 08:47:17,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-29 08:47:17,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-29 08:47:17,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-29 08:47:17,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-08-29 08:47:17,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-29 08:47:17,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-29 08:47:17,197 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-29 08:47:17,198 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-08-29 08:47:17,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:47:17 BoogieIcfgContainer [2021-08-29 08:47:17,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-29 08:47:17,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-29 08:47:17,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-29 08:47:17,203 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-29 08:47:17,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 08:47:16" (1/3) ... [2021-08-29 08:47:17,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d639e99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:47:17, skipping insertion in model container [2021-08-29 08:47:17,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 08:47:16" (2/3) ... [2021-08-29 08:47:17,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d639e99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 08:47:17, skipping insertion in model container [2021-08-29 08:47:17,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:47:17" (3/3) ... [2021-08-29 08:47:17,205 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052b.c [2021-08-29 08:47:17,208 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-29 08:47:17,208 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-29 08:47:17,239 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-29 08:47:17,243 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, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-29 08:47:17,243 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-08-29 08:47:17,252 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 28 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:17,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-29 08:47:17,255 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:47:17,256 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:47:17,256 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:47:17,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:47:17,260 INFO L82 PathProgramCache]: Analyzing trace with hash -2064187560, now seen corresponding path program 1 times [2021-08-29 08:47:17,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:47:17,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [622923898] [2021-08-29 08:47:17,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:47:17,280 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:47:17,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:47:17,282 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:47:17,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-29 08:47:17,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:47:17,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core [2021-08-29 08:47:17,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:47:17,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:17,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:47:17,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:17,532 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:47:17,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [622923898] [2021-08-29 08:47:17,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [622923898] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:47:17,533 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:47:17,533 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-29 08:47:17,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107943864] [2021-08-29 08:47:17,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-29 08:47:17,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:47:17,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-29 08:47:17,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 08:47:17,563 INFO L87 Difference]: Start difference. First operand has 29 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 28 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:17,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:47:17,875 INFO L93 Difference]: Finished difference Result 56 states and 86 transitions. [2021-08-29 08:47:17,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-29 08:47:17,877 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-29 08:47:17,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:47:17,897 INFO L225 Difference]: With dead ends: 56 [2021-08-29 08:47:17,897 INFO L226 Difference]: Without dead ends: 26 [2021-08-29 08:47:17,899 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.08ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-29 08:47:17,901 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 277.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.35ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 298.28ms IncrementalHoareTripleChecker+Time [2021-08-29 08:47:17,902 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 37 Unknown, 0 Unchecked, 0.35ms Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 298.28ms Time] [2021-08-29 08:47:17,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-08-29 08:47:17,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-08-29 08:47:17,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.36) internal successors, (34), 25 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:17,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2021-08-29 08:47:17,922 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 12 [2021-08-29 08:47:17,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:47:17,922 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2021-08-29 08:47:17,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:17,923 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2021-08-29 08:47:17,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-08-29 08:47:17,923 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:47:17,923 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:47:17,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-29 08:47:18,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:47:18,133 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:47:18,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:47:18,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1026834198, now seen corresponding path program 1 times [2021-08-29 08:47:18,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:47:18,134 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [429770058] [2021-08-29 08:47:18,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:47:18,134 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:47:18,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:47:18,149 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:47:18,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-29 08:47:18,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:47:18,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-29 08:47:18,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:47:18,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:18,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:47:18,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:18,557 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:47:18,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [429770058] [2021-08-29 08:47:18,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [429770058] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:47:18,557 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:47:18,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-29 08:47:18,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203296189] [2021-08-29 08:47:18,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-29 08:47:18,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:47:18,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-29 08:47:18,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-29 08:47:18,560 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:18,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:47:18,768 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2021-08-29 08:47:18,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 08:47:18,769 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-08-29 08:47:18,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:47:18,769 INFO L225 Difference]: With dead ends: 34 [2021-08-29 08:47:18,770 INFO L226 Difference]: Without dead ends: 26 [2021-08-29 08:47:18,770 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 78.03ms TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-29 08:47:18,771 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 181.59ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.97ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 86 IncrementalHoareTripleChecker+Unchecked, 199.76ms IncrementalHoareTripleChecker+Time [2021-08-29 08:47:18,771 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 167 Unknown, 0 Unchecked, 0.97ms Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 86 Unchecked, 199.76ms Time] [2021-08-29 08:47:18,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-08-29 08:47:18,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-08-29 08:47:18,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.32) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:18,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2021-08-29 08:47:18,774 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 14 [2021-08-29 08:47:18,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:47:18,774 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-08-29 08:47:18,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:18,775 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2021-08-29 08:47:18,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-08-29 08:47:18,775 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:47:18,775 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:47:18,796 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-08-29 08:47:18,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:47:18,976 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:47:18,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:47:18,977 INFO L82 PathProgramCache]: Analyzing trace with hash -217487572, now seen corresponding path program 1 times [2021-08-29 08:47:18,977 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:47:18,978 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1900595319] [2021-08-29 08:47:18,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:47:18,978 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:47:18,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:47:18,979 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:47:18,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-29 08:47:19,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:47:19,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 15 conjunts are in the unsatisfiable core [2021-08-29 08:47:19,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:47:19,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:19,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:47:20,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:20,261 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:47:20,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1900595319] [2021-08-29 08:47:20,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1900595319] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:47:20,261 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:47:20,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 15 [2021-08-29 08:47:20,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453426084] [2021-08-29 08:47:20,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-29 08:47:20,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:47:20,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-29 08:47:20,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-08-29 08:47:20,263 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 15 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:20,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:47:20,784 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2021-08-29 08:47:20,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-29 08:47:20,784 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 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 14 [2021-08-29 08:47:20,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:47:20,785 INFO L225 Difference]: With dead ends: 43 [2021-08-29 08:47:20,785 INFO L226 Difference]: Without dead ends: 21 [2021-08-29 08:47:20,785 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 789.29ms TimeCoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2021-08-29 08:47:20,786 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 38 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 336.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.52ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 59 IncrementalHoareTripleChecker+Unchecked, 386.96ms IncrementalHoareTripleChecker+Time [2021-08-29 08:47:20,786 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 0 Invalid, 242 Unknown, 0 Unchecked, 2.52ms Time], IncrementalHoareTripleChecker [6 Valid, 177 Invalid, 0 Unknown, 59 Unchecked, 386.96ms Time] [2021-08-29 08:47:20,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-08-29 08:47:20,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-08-29 08:47:20,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:20,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2021-08-29 08:47:20,789 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 14 [2021-08-29 08:47:20,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:47:20,789 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2021-08-29 08:47:20,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.8) internal successors, (27), 15 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:20,789 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2021-08-29 08:47:20,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-29 08:47:20,792 INFO L505 BasicCegarLoop]: Found error trace [2021-08-29 08:47:20,792 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-29 08:47:20,802 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-08-29 08:47:21,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:47:21,002 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-29 08:47:21,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-29 08:47:21,002 INFO L82 PathProgramCache]: Analyzing trace with hash 1158240359, now seen corresponding path program 1 times [2021-08-29 08:47:21,003 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-29 08:47:21,003 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1681614830] [2021-08-29 08:47:21,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-29 08:47:21,003 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-29 08:47:21,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-29 08:47:21,005 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-29 08:47:21,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-29 08:47:21,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-29 08:47:21,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-29 08:47:21,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-29 08:47:21,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:21,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-29 08:47:21,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-29 08:47:21,315 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-29 08:47:21,315 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1681614830] [2021-08-29 08:47:21,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1681614830] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-29 08:47:21,315 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-29 08:47:21,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-08-29 08:47:21,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567000681] [2021-08-29 08:47:21,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-29 08:47:21,316 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-29 08:47:21,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-29 08:47:21,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-29 08:47:21,316 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:21,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-29 08:47:21,329 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2021-08-29 08:47:21,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-29 08:47:21,329 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-08-29 08:47:21,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-29 08:47:21,330 INFO L225 Difference]: With dead ends: 21 [2021-08-29 08:47:21,330 INFO L226 Difference]: Without dead ends: 0 [2021-08-29 08:47:21,330 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 106.87ms TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-08-29 08:47:21,331 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.67ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.05ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 10.96ms IncrementalHoareTripleChecker+Time [2021-08-29 08:47:21,331 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 12 Unknown, 0 Unchecked, 0.05ms Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 6 Unchecked, 10.96ms Time] [2021-08-29 08:47:21,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-29 08:47:21,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-29 08:47:21,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:21,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-29 08:47:21,332 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-08-29 08:47:21,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-29 08:47:21,332 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-29 08:47:21,332 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-29 08:47:21,332 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-29 08:47:21,332 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-29 08:47:21,334 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-08-29 08:47:21,345 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-29 08:47:21,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-29 08:47:21,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-29 08:47:21,548 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:47:21,566 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:47:21,569 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:47:21,571 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:47:21,572 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-29 08:47:21,615 INFO L858 garLoopResultBuilder]: For program point L27(lines 27 33) no Hoare annotation was computed. [2021-08-29 08:47:21,615 INFO L858 garLoopResultBuilder]: For program point L81(lines 81 84) no Hoare annotation was computed. [2021-08-29 08:47:21,615 INFO L858 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2021-08-29 08:47:21,615 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-29 08:47:21,616 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-29 08:47:21,616 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-29 08:47:21,616 INFO L858 garLoopResultBuilder]: For program point L28(lines 28 32) no Hoare annotation was computed. [2021-08-29 08:47:21,616 INFO L858 garLoopResultBuilder]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2021-08-29 08:47:21,616 INFO L854 garLoopResultBuilder]: At program point L61-2(lines 61 65) the Hoare annotation is: (let ((.cse0 (let ((.cse1 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse1 .cse1)))) (and (= .cse0 ULTIMATE.start_isinf_float_~x) (= .cse0 |ULTIMATE.start_floor_float_#res|) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) ULTIMATE.start_floor_float_~x) (= currentRoundingMode roundNearestTiesToEven))) [2021-08-29 08:47:21,616 INFO L858 garLoopResultBuilder]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2021-08-29 08:47:21,617 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 82) no Hoare annotation was computed. [2021-08-29 08:47:21,617 INFO L861 garLoopResultBuilder]: At program point L86(lines 70 87) the Hoare annotation is: true [2021-08-29 08:47:21,617 INFO L858 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-08-29 08:47:21,617 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 48) no Hoare annotation was computed. [2021-08-29 08:47:21,617 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-29 08:47:21,617 INFO L858 garLoopResultBuilder]: For program point L25(lines 25 49) no Hoare annotation was computed. [2021-08-29 08:47:21,617 INFO L858 garLoopResultBuilder]: For program point L50(lines 50 54) no Hoare annotation was computed. [2021-08-29 08:47:21,618 INFO L858 garLoopResultBuilder]: For program point L50-1(lines 15 56) no Hoare annotation was computed. [2021-08-29 08:47:21,618 INFO L858 garLoopResultBuilder]: For program point L50-2(lines 50 54) no Hoare annotation was computed. [2021-08-29 08:47:21,618 INFO L858 garLoopResultBuilder]: For program point L38(lines 38 42) no Hoare annotation was computed. [2021-08-29 08:47:21,618 INFO L854 garLoopResultBuilder]: At program point L67(lines 59 68) the Hoare annotation is: (and (= (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_floor_float_#res|) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) ULTIMATE.start_floor_float_~x) (= (bvand (_ bv2147483647 32) ULTIMATE.start_isinf_float_~ix~1) (_ bv2139095040 32)) (= currentRoundingMode roundNearestTiesToEven) (= |ULTIMATE.start_isinf_float_#res| (_ bv1 32))) [2021-08-29 08:47:21,618 INFO L858 garLoopResultBuilder]: For program point L30(lines 30 32) no Hoare annotation was computed. [2021-08-29 08:47:21,618 INFO L858 garLoopResultBuilder]: For program point L26(lines 26 43) no Hoare annotation was computed. [2021-08-29 08:47:21,618 INFO L854 garLoopResultBuilder]: At program point L55(lines 15 56) the Hoare annotation is: (and (= (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_floor_float_#res|) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) ULTIMATE.start_floor_float_~x) (= currentRoundingMode roundNearestTiesToEven)) [2021-08-29 08:47:21,619 INFO L858 garLoopResultBuilder]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2021-08-29 08:47:21,619 INFO L854 garLoopResultBuilder]: At program point L18-2(lines 18 22) the Hoare annotation is: (and (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) ULTIMATE.start_floor_float_~x) (= currentRoundingMode roundNearestTiesToEven)) [2021-08-29 08:47:21,619 INFO L858 garLoopResultBuilder]: For program point L18-3(lines 18 22) no Hoare annotation was computed. [2021-08-29 08:47:21,619 INFO L858 garLoopResultBuilder]: For program point L39(lines 39 40) no Hoare annotation was computed. [2021-08-29 08:47:21,619 INFO L858 garLoopResultBuilder]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2021-08-29 08:47:21,622 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-29 08:47:21,627 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,628 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,628 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,628 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,628 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,628 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,631 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,631 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,631 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,631 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,632 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,632 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,632 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,633 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,633 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,633 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,633 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,633 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,633 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,634 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,634 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,634 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,634 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,634 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,634 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,635 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,635 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,635 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,635 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,635 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,635 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,636 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,636 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,636 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,636 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,636 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,636 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,637 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,637 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,637 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,637 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,637 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,638 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,638 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,638 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,638 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,638 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,638 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 08:47:21 BoogieIcfgContainer [2021-08-29 08:47:21,639 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-29 08:47:21,640 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-29 08:47:21,640 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-29 08:47:21,640 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-29 08:47:21,640 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 08:47:17" (3/4) ... [2021-08-29 08:47:21,642 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-29 08:47:21,648 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-08-29 08:47:21,649 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-08-29 08:47:21,649 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 08:47:21,649 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-29 08:47:21,661 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) == \result && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-08-29 08:47:21,662 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) == x && ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) == \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-08-29 08:47:21,662 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) == \result && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && ~bvand32(2147483647bv32, ix) == 2139095040bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && \result == 1bv32 [2021-08-29 08:47:21,668 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-29 08:47:21,668 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-29 08:47:21,669 INFO L158 Benchmark]: Toolchain (without parser) took 5115.74ms. Allocated memory was 52.4MB in the beginning and 88.1MB in the end (delta: 35.7MB). Free memory was 31.0MB in the beginning and 51.0MB in the end (delta: -20.0MB). Peak memory consumption was 16.5MB. Max. memory is 16.1GB. [2021-08-29 08:47:21,669 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 52.4MB. Free memory is still 34.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 08:47:21,669 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.21ms. Allocated memory was 52.4MB in the beginning and 71.3MB in the end (delta: 18.9MB). Free memory was 30.9MB in the beginning and 55.7MB in the end (delta: -24.8MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2021-08-29 08:47:21,669 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.97ms. Allocated memory is still 71.3MB. Free memory was 55.4MB in the beginning and 54.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 08:47:21,670 INFO L158 Benchmark]: Boogie Preprocessor took 47.10ms. Allocated memory is still 71.3MB. Free memory was 54.0MB in the beginning and 52.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-29 08:47:21,670 INFO L158 Benchmark]: RCFGBuilder took 190.38ms. Allocated memory is still 71.3MB. Free memory was 52.3MB in the beginning and 41.4MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-08-29 08:47:21,670 INFO L158 Benchmark]: TraceAbstraction took 4438.52ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 41.1MB in the beginning and 54.5MB in the end (delta: -13.4MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2021-08-29 08:47:21,670 INFO L158 Benchmark]: Witness Printer took 28.77ms. Allocated memory is still 88.1MB. Free memory was 54.5MB in the beginning and 51.0MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-29 08:47:21,671 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 52.4MB. Free memory is still 34.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.21ms. Allocated memory was 52.4MB in the beginning and 71.3MB in the end (delta: 18.9MB). Free memory was 30.9MB in the beginning and 55.7MB in the end (delta: -24.8MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.97ms. Allocated memory is still 71.3MB. Free memory was 55.4MB in the beginning and 54.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.10ms. Allocated memory is still 71.3MB. Free memory was 54.0MB in the beginning and 52.3MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 190.38ms. Allocated memory is still 71.3MB. Free memory was 52.3MB in the beginning and 41.4MB in the end (delta: 10.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4438.52ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 41.1MB in the beginning and 54.5MB in the end (delta: -13.4MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * Witness Printer took 28.77ms. Allocated memory is still 88.1MB. Free memory was 54.5MB in the beginning and 51.0MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 82]: 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, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4384.60ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 9.99ms, AutomataDifference: 1117.26ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 70.59ms, InitialAbstractionConstructionTime: 5.82ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 895.96ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 38 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 805.17ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 151 IncrementalHoareTripleChecker+Unchecked, 238 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 301 IncrementalHoareTripleChecker+Invalid, 458 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 0 mSDtfsCounter, 301 mSolverCounterSat, 3.89ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 974.27ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 15.78ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 133 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 26.87ms HoareSimplificationTime, 5 FomulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 39.15ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 51.38ms SsaConstructionTime, 216.84ms SatisfiabilityAnalysisTime, 1838.11ms InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 108 ConstructedInterpolants, 18 QuantifiedInterpolants, 617 SizeOfPredicates, 28 NumberOfNonLiveVariables, 221 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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: 59]: Loop Invariant [2021-08-29 08:47:21,681 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,681 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,681 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,681 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,682 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,682 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,682 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,682 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,682 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,683 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,683 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,683 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) == \result && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && ~bvand32(2147483647bv32, ix) == 2139095040bv32) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && \result == 1bv32 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant [2021-08-29 08:47:21,683 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,684 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 61]: Loop Invariant [2021-08-29 08:47:21,684 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,684 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,684 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,684 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,684 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,685 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,685 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,685 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,685 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,685 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,685 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,686 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,686 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,686 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,686 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,686 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,686 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,686 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,686 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,687 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,687 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,687 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) == x && ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) == \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 15]: Loop Invariant [2021-08-29 08:47:21,687 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,687 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,687 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,688 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,688 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,688 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,688 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,689 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,689 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,689 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,689 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-08-29 08:47:21,690 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) == \result && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven RESULT: Ultimate proved your program to be correct! [2021-08-29 08:47:21,713 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...