./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1131b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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_1131b.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 13787d2cb5ffea0911ec7bb9f969ca72234ab27d7c89c5aec775ef624e14d583 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 01:57:32,526 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 01:57:32,528 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 01:57:32,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 01:57:32,561 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 01:57:32,562 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 01:57:32,565 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 01:57:32,568 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 01:57:32,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 01:57:32,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 01:57:32,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 01:57:32,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 01:57:32,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 01:57:32,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 01:57:32,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 01:57:32,582 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 01:57:32,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 01:57:32,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 01:57:32,585 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 01:57:32,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 01:57:32,591 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 01:57:32,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 01:57:32,593 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 01:57:32,594 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 01:57:32,595 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 01:57:32,600 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 01:57:32,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 01:57:32,601 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 01:57:32,601 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 01:57:32,602 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 01:57:32,602 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 01:57:32,603 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 01:57:32,604 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 01:57:32,604 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 01:57:32,605 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 01:57:32,606 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 01:57:32,606 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 01:57:32,606 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 01:57:32,606 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 01:57:32,607 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 01:57:32,607 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 01:57:32,608 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 01:57:32,615 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-21 01:57:32,647 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 01:57:32,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 01:57:32,648 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 01:57:32,648 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 01:57:32,649 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 01:57:32,649 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 01:57:32,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 01:57:32,649 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 01:57:32,650 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 01:57:32,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 01:57:32,651 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 01:57:32,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 01:57:32,651 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 01:57:32,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 01:57:32,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 01:57:32,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 01:57:32,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 01:57:32,652 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 01:57:32,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 01:57:32,652 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 01:57:32,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 01:57:32,652 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 01:57:32,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 01:57:32,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 01:57:32,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:57:32,653 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 01:57:32,653 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 01:57:32,653 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 01:57:32,653 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 01:57:32,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 01:57:32,654 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 01:57:32,654 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 01:57:32,654 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 01:57:32,654 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13787d2cb5ffea0911ec7bb9f969ca72234ab27d7c89c5aec775ef624e14d583 [2022-07-21 01:57:33,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 01:57:33,101 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 01:57:33,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 01:57:33,104 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 01:57:33,105 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 01:57:33,106 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1131b.c [2022-07-21 01:57:33,151 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e103e4ab0/84e69cab16164ab48a385ee21627ab23/FLAG525ce88a5 [2022-07-21 01:57:33,541 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 01:57:33,542 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c [2022-07-21 01:57:33,549 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e103e4ab0/84e69cab16164ab48a385ee21627ab23/FLAG525ce88a5 [2022-07-21 01:57:33,562 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e103e4ab0/84e69cab16164ab48a385ee21627ab23 [2022-07-21 01:57:33,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 01:57:33,565 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 01:57:33,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 01:57:33,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 01:57:33,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 01:57:33,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:57:33" (1/1) ... [2022-07-21 01:57:33,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@234f19a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:33, skipping insertion in model container [2022-07-21 01:57:33,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:57:33" (1/1) ... [2022-07-21 01:57:33,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 01:57:33,597 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 01:57:33,782 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c[2947,2960] [2022-07-21 01:57:33,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:57:33,800 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 01:57:33,838 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c[2947,2960] [2022-07-21 01:57:33,844 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:57:33,856 INFO L208 MainTranslator]: Completed translation [2022-07-21 01:57:33,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:33 WrapperNode [2022-07-21 01:57:33,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 01:57:33,858 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 01:57:33,858 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 01:57:33,858 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 01:57:33,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:33" (1/1) ... [2022-07-21 01:57:33,881 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:33" (1/1) ... [2022-07-21 01:57:33,911 INFO L137 Inliner]: procedures = 18, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 219 [2022-07-21 01:57:33,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 01:57:33,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 01:57:33,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 01:57:33,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 01:57:33,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:33" (1/1) ... [2022-07-21 01:57:33,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:33" (1/1) ... [2022-07-21 01:57:33,930 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:33" (1/1) ... [2022-07-21 01:57:33,931 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:33" (1/1) ... [2022-07-21 01:57:33,949 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:33" (1/1) ... [2022-07-21 01:57:33,959 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:33" (1/1) ... [2022-07-21 01:57:33,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:33" (1/1) ... [2022-07-21 01:57:33,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 01:57:33,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 01:57:33,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 01:57:33,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 01:57:33,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:33" (1/1) ... [2022-07-21 01:57:33,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:57:33,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 01:57:33,996 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 01:57:34,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 01:57:34,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 01:57:34,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 01:57:34,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 01:57:34,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 01:57:34,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-07-21 01:57:34,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-07-21 01:57:34,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 01:57:34,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 01:57:34,052 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 01:57:34,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-07-21 01:57:34,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 01:57:34,154 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 01:57:34,156 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 01:57:34,495 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 01:57:34,499 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 01:57:34,500 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2022-07-21 01:57:34,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:57:34 BoogieIcfgContainer [2022-07-21 01:57:34,502 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 01:57:34,503 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 01:57:34,503 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 01:57:34,513 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 01:57:34,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:57:33" (1/3) ... [2022-07-21 01:57:34,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74e1d02e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:57:34, skipping insertion in model container [2022-07-21 01:57:34,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:33" (2/3) ... [2022-07-21 01:57:34,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74e1d02e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:57:34, skipping insertion in model container [2022-07-21 01:57:34,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:57:34" (3/3) ... [2022-07-21 01:57:34,516 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1131b.c [2022-07-21 01:57:34,525 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 01:57:34,526 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 01:57:34,572 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 01:57:34,579 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7571f293, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6b7d41a6 [2022-07-21 01:57:34,579 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 01:57:34,582 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 57 states have (on average 1.7894736842105263) internal successors, (102), 58 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:34,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-21 01:57:34,587 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:57:34,587 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:57:34,588 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:57:34,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:57:34,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1228515262, now seen corresponding path program 1 times [2022-07-21 01:57:34,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 01:57:34,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798828481] [2022-07-21 01:57:34,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:57:34,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 01:57:34,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:57:34,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:57:34,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 01:57:34,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798828481] [2022-07-21 01:57:34,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798828481] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:57:34,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:57:34,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 01:57:34,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084602255] [2022-07-21 01:57:34,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:57:34,721 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 01:57:34,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 01:57:34,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 01:57:34,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 01:57:34,749 INFO L87 Difference]: Start difference. First operand has 59 states, 57 states have (on average 1.7894736842105263) internal successors, (102), 58 states have internal predecessors, (102), 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 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:34,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:57:34,773 INFO L93 Difference]: Finished difference Result 116 states and 202 transitions. [2022-07-21 01:57:34,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 01:57:34,775 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 [2022-07-21 01:57:34,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:57:34,781 INFO L225 Difference]: With dead ends: 116 [2022-07-21 01:57:34,781 INFO L226 Difference]: Without dead ends: 55 [2022-07-21 01:57:34,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 01:57:34,787 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 01:57:34,788 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 01:57:34,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-07-21 01:57:34,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2022-07-21 01:57:34,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.3703703703703705) internal successors, (74), 54 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:34,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 74 transitions. [2022-07-21 01:57:34,826 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 74 transitions. Word has length 14 [2022-07-21 01:57:34,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:57:34,826 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 74 transitions. [2022-07-21 01:57:34,827 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:34,827 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 74 transitions. [2022-07-21 01:57:34,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-21 01:57:34,827 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:57:34,828 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:57:34,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 01:57:34,828 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:57:34,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:57:34,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1196155650, now seen corresponding path program 1 times [2022-07-21 01:57:34,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 01:57:34,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841371616] [2022-07-21 01:57:34,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:57:34,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 01:57:34,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 01:57:34,941 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-21 01:57:34,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-21 01:57:34,996 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-21 01:57:34,997 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-21 01:57:34,998 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 01:57:35,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 01:57:35,004 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1] [2022-07-21 01:57:35,007 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 01:57:35,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:57:35 BoogieIcfgContainer [2022-07-21 01:57:35,036 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 01:57:35,036 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 01:57:35,036 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 01:57:35,037 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 01:57:35,037 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:57:34" (3/4) ... [2022-07-21 01:57:35,039 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-21 01:57:35,040 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 01:57:35,041 INFO L158 Benchmark]: Toolchain (without parser) took 1475.30ms. Allocated memory was 50.3MB in the beginning and 67.1MB in the end (delta: 16.8MB). Free memory was 27.2MB in the beginning and 36.3MB in the end (delta: -9.1MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2022-07-21 01:57:35,041 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 50.3MB. Free memory was 32.0MB in the beginning and 32.0MB in the end (delta: 43.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:57:35,044 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.31ms. Allocated memory is still 50.3MB. Free memory was 27.1MB in the beginning and 26.4MB in the end (delta: 709.0kB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2022-07-21 01:57:35,045 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.26ms. Allocated memory is still 50.3MB. Free memory was 26.4MB in the beginning and 23.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 01:57:35,047 INFO L158 Benchmark]: Boogie Preprocessor took 55.99ms. Allocated memory was 50.3MB in the beginning and 67.1MB in the end (delta: 16.8MB). Free memory was 23.8MB in the beginning and 50.1MB in the end (delta: -26.3MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2022-07-21 01:57:35,047 INFO L158 Benchmark]: RCFGBuilder took 532.83ms. Allocated memory is still 67.1MB. Free memory was 50.1MB in the beginning and 33.1MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-07-21 01:57:35,048 INFO L158 Benchmark]: TraceAbstraction took 533.05ms. Allocated memory is still 67.1MB. Free memory was 32.6MB in the beginning and 36.6MB in the end (delta: -4.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:57:35,048 INFO L158 Benchmark]: Witness Printer took 3.25ms. Allocated memory is still 67.1MB. Free memory was 36.6MB in the beginning and 36.3MB in the end (delta: 321.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:57:35,051 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 50.3MB. Free memory was 32.0MB in the beginning and 32.0MB in the end (delta: 43.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.31ms. Allocated memory is still 50.3MB. Free memory was 27.1MB in the beginning and 26.4MB in the end (delta: 709.0kB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.26ms. Allocated memory is still 50.3MB. Free memory was 26.4MB in the beginning and 23.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.99ms. Allocated memory was 50.3MB in the beginning and 67.1MB in the end (delta: 16.8MB). Free memory was 23.8MB in the beginning and 50.1MB in the end (delta: -26.3MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. * RCFGBuilder took 532.83ms. Allocated memory is still 67.1MB. Free memory was 50.1MB in the beginning and 33.1MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 533.05ms. Allocated memory is still 67.1MB. Free memory was 32.6MB in the beginning and 36.6MB in the end (delta: -4.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.25ms. Allocated memory is still 67.1MB. Free memory was 36.6MB in the beginning and 36.3MB in the end (delta: 321.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 137]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 136, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 34, overapproximation of someBinaryArithmeticFLOAToperation at line 37, overapproximation of bitwiseXOr at line 33. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={4:0}] [L128] float x = __VERIFIER_nondet_float(); [L129] float y = -1.0f / 0.0f; [L131] CALL isfinite_float(x) [L111] __int32_t ix; VAL [\old(x)=4294967307, one_fmod=1, x=4294967307, Zero_fmod={4:0}] [L113] ieee_float_shape_type gf_u; [L114] gf_u.value = (x) [L115] EXPR gf_u.word [L115] (ix) = gf_u.word [L117] ix &= 0x7fffffff [L118] return (((ix) < 0x7f800000L)); VAL [\old(x)=4294967307, \result=1, ix=1, one_fmod=1, x=4294967307, Zero_fmod={4:0}] [L131] RET isfinite_float(x) [L131] COND TRUE isfinite_float(x) [L133] CALL, EXPR fmod_float(x, y) [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [\old(x)=4294967307, \old(y)=4294967306, one_fmod=1, x=4294967307, y=4294967306, Zero_fmod={4:0}] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 VAL [\old(x)=4294967307, \old(y)=4294967306, hx=0, hy=-1, one_fmod=1, sx=0, x=4294967307, y=4294967306, Zero_fmod={4:0}] [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [\old(x)=4294967307, \old(y)=4294967306, hx=0, hy=0, one_fmod=1, sx=0, x=4294967307, y=4294967306, Zero_fmod={4:0}] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [\old(x)=4294967307, \old(y)=4294967306, hx=0, hy=0, one_fmod=1, sx=0, x=4294967307, y=4294967306, Zero_fmod={4:0}] [L133] RET, EXPR fmod_float(x, y) [L133] float res = fmod_float(x, y); [L136] COND TRUE res != x VAL [one_fmod=1, res=4294967309, x=4294967307, y=4294967306, Zero_fmod={4:0}] [L137] reach_error() VAL [one_fmod=1, res=4294967309, x=4294967307, y=4294967306, Zero_fmod={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 59 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 79 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 79 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-07-21 01:57:35,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1131b.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 13787d2cb5ffea0911ec7bb9f969ca72234ab27d7c89c5aec775ef624e14d583 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 01:57:36,716 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 01:57:36,718 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 01:57:36,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 01:57:36,756 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 01:57:36,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 01:57:36,760 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 01:57:36,763 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 01:57:36,764 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 01:57:36,767 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 01:57:36,768 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 01:57:36,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 01:57:36,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 01:57:36,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 01:57:36,772 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 01:57:36,777 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 01:57:36,778 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 01:57:36,779 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 01:57:36,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 01:57:36,785 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 01:57:36,785 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 01:57:36,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 01:57:36,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 01:57:36,788 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 01:57:36,789 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 01:57:36,794 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 01:57:36,794 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 01:57:36,794 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 01:57:36,795 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 01:57:36,795 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 01:57:36,797 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 01:57:36,797 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 01:57:36,798 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 01:57:36,799 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 01:57:36,800 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 01:57:36,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 01:57:36,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 01:57:36,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 01:57:36,801 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 01:57:36,801 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 01:57:36,802 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 01:57:36,802 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 01:57:36,806 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-21 01:57:36,825 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 01:57:36,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 01:57:36,825 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 01:57:36,825 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 01:57:36,826 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 01:57:36,826 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 01:57:36,827 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 01:57:36,827 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 01:57:36,827 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 01:57:36,828 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 01:57:36,828 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-21 01:57:36,828 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-21 01:57:36,828 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 01:57:36,828 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 01:57:36,828 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 01:57:36,829 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 01:57:36,829 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-21 01:57:36,829 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-21 01:57:36,829 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-21 01:57:36,829 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-21 01:57:36,829 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 01:57:36,829 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 01:57:36,830 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 01:57:36,830 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 01:57:36,830 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 01:57:36,830 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 01:57:36,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:57:36,830 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 01:57:36,830 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 01:57:36,831 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 01:57:36,831 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-21 01:57:36,831 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-21 01:57:36,831 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 01:57:36,831 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 01:57:36,832 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 01:57:36,832 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-21 01:57:36,832 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 13787d2cb5ffea0911ec7bb9f969ca72234ab27d7c89c5aec775ef624e14d583 [2022-07-21 01:57:37,124 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 01:57:37,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 01:57:37,145 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 01:57:37,146 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 01:57:37,146 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 01:57:37,147 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1131b.c [2022-07-21 01:57:37,192 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25ec1d85b/b9d2728d8fb549aa80f578285fc05618/FLAG544b99db5 [2022-07-21 01:57:37,549 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 01:57:37,549 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c [2022-07-21 01:57:37,568 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25ec1d85b/b9d2728d8fb549aa80f578285fc05618/FLAG544b99db5 [2022-07-21 01:57:37,972 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25ec1d85b/b9d2728d8fb549aa80f578285fc05618 [2022-07-21 01:57:37,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 01:57:37,976 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 01:57:37,980 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 01:57:37,983 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 01:57:37,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 01:57:38,000 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:57:37" (1/1) ... [2022-07-21 01:57:38,002 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ded134b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:38, skipping insertion in model container [2022-07-21 01:57:38,002 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:57:37" (1/1) ... [2022-07-21 01:57:38,007 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 01:57:38,022 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 01:57:38,121 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c[2947,2960] [2022-07-21 01:57:38,157 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:57:38,165 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 01:57:38,183 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1131b.c[2947,2960] [2022-07-21 01:57:38,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 01:57:38,193 INFO L208 MainTranslator]: Completed translation [2022-07-21 01:57:38,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:38 WrapperNode [2022-07-21 01:57:38,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 01:57:38,194 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 01:57:38,194 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 01:57:38,194 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 01:57:38,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:38" (1/1) ... [2022-07-21 01:57:38,205 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:38" (1/1) ... [2022-07-21 01:57:38,220 INFO L137 Inliner]: procedures = 21, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 183 [2022-07-21 01:57:38,220 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 01:57:38,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 01:57:38,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 01:57:38,221 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 01:57:38,225 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:38" (1/1) ... [2022-07-21 01:57:38,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:38" (1/1) ... [2022-07-21 01:57:38,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:38" (1/1) ... [2022-07-21 01:57:38,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:38" (1/1) ... [2022-07-21 01:57:38,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:38" (1/1) ... [2022-07-21 01:57:38,255 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:38" (1/1) ... [2022-07-21 01:57:38,256 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:38" (1/1) ... [2022-07-21 01:57:38,259 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 01:57:38,259 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 01:57:38,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 01:57:38,259 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 01:57:38,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:38" (1/1) ... [2022-07-21 01:57:38,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 01:57:38,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 01:57:38,307 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-21 01:57:38,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-21 01:57:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 01:57:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2022-07-21 01:57:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-21 01:57:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 01:57:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-07-21 01:57:38,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-21 01:57:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 01:57:38,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 01:57:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-07-21 01:57:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-21 01:57:38,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 01:57:38,382 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 01:57:38,383 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 01:57:40,890 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 01:57:40,894 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 01:57:40,894 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2022-07-21 01:57:40,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:57:40 BoogieIcfgContainer [2022-07-21 01:57:40,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 01:57:40,897 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 01:57:40,897 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 01:57:40,899 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 01:57:40,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:57:37" (1/3) ... [2022-07-21 01:57:40,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc732e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:57:40, skipping insertion in model container [2022-07-21 01:57:40,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:57:38" (2/3) ... [2022-07-21 01:57:40,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc732e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:57:40, skipping insertion in model container [2022-07-21 01:57:40,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:57:40" (3/3) ... [2022-07-21 01:57:40,902 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1131b.c [2022-07-21 01:57:40,915 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 01:57:40,918 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 01:57:40,988 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 01:57:40,996 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2333c8e1, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1fa1d2f8 [2022-07-21 01:57:40,996 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 01:57:41,002 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 46 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:41,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-21 01:57:41,014 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:57:41,015 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:57:41,015 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:57:41,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:57:41,019 INFO L85 PathProgramCache]: Analyzing trace with hash 2036314411, now seen corresponding path program 1 times [2022-07-21 01:57:41,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:57:41,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1205361514] [2022-07-21 01:57:41,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:57:41,028 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:57:41,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:57:41,031 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 01:57:41,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-21 01:57:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:57:41,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 1 conjunts are in the unsatisfiable core [2022-07-21 01:57:41,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 01:57:41,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:57:41,266 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 01:57:41,267 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 01:57:41,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1205361514] [2022-07-21 01:57:41,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1205361514] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:57:41,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:57:41,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-21 01:57:41,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855404753] [2022-07-21 01:57:41,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:57:41,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-07-21 01:57:41,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 01:57:41,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-07-21 01:57:41,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 01:57:41,292 INFO L87 Difference]: Start difference. First operand has 47 states, 45 states have (on average 1.7333333333333334) internal successors, (78), 46 states have internal predecessors, (78), 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 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:41,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:57:41,308 INFO L93 Difference]: Finished difference Result 92 states and 154 transitions. [2022-07-21 01:57:41,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-07-21 01:57:41,310 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-07-21 01:57:41,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:57:41,315 INFO L225 Difference]: With dead ends: 92 [2022-07-21 01:57:41,315 INFO L226 Difference]: Without dead ends: 43 [2022-07-21 01:57:41,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-07-21 01:57:41,320 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 01:57:41,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 01:57:41,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-07-21 01:57:41,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-07-21 01:57:41,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.380952380952381) internal successors, (58), 42 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:41,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 58 transitions. [2022-07-21 01:57:41,355 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 58 transitions. Word has length 13 [2022-07-21 01:57:41,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:57:41,356 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 58 transitions. [2022-07-21 01:57:41,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:41,356 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 58 transitions. [2022-07-21 01:57:41,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-07-21 01:57:41,358 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:57:41,358 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:57:41,370 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-21 01:57:41,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:57:41,571 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:57:41,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:57:41,572 INFO L85 PathProgramCache]: Analyzing trace with hash -794964373, now seen corresponding path program 1 times [2022-07-21 01:57:41,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:57:41,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [286378763] [2022-07-21 01:57:41,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:57:41,576 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:57:41,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:57:41,578 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-21 01:57:41,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-21 01:57:41,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:57:41,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 30 conjunts are in the unsatisfiable core [2022-07-21 01:57:41,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 01:57:41,954 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 01:57:42,495 INFO L356 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-07-21 01:57:42,496 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 35 [2022-07-21 01:57:42,683 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-07-21 01:57:42,684 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 24 [2022-07-21 01:57:43,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:57:43,010 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 01:57:43,010 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 01:57:43,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [286378763] [2022-07-21 01:57:43,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [286378763] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:57:43,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:57:43,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-21 01:57:43,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937355663] [2022-07-21 01:57:43,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:57:43,012 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-21 01:57:43,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 01:57:43,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-21 01:57:43,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-21 01:57:43,014 INFO L87 Difference]: Start difference. First operand 43 states and 58 transitions. Second operand has 10 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:43,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:57:43,046 INFO L93 Difference]: Finished difference Result 47 states and 61 transitions. [2022-07-21 01:57:43,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 01:57:43,047 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-07-21 01:57:43,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:57:43,048 INFO L225 Difference]: With dead ends: 47 [2022-07-21 01:57:43,049 INFO L226 Difference]: Without dead ends: 43 [2022-07-21 01:57:43,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-07-21 01:57:43,050 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 115 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 01:57:43,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 330 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 115 Unchecked, 0.0s Time] [2022-07-21 01:57:43,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-07-21 01:57:43,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-07-21 01:57:43,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.3571428571428572) internal successors, (57), 42 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:43,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 57 transitions. [2022-07-21 01:57:43,059 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 57 transitions. Word has length 16 [2022-07-21 01:57:43,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:57:43,060 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 57 transitions. [2022-07-21 01:57:43,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.6) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:43,060 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 57 transitions. [2022-07-21 01:57:43,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-21 01:57:43,061 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:57:43,061 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:57:43,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-21 01:57:43,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:57:43,295 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:57:43,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:57:43,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1123581797, now seen corresponding path program 1 times [2022-07-21 01:57:43,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:57:43,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [327014841] [2022-07-21 01:57:43,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:57:43,300 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:57:43,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:57:43,309 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) [2022-07-21 01:57:43,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-21 01:57:43,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:57:43,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 16 conjunts are in the unsatisfiable core [2022-07-21 01:57:43,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 01:57:44,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:57:44,061 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 01:57:44,061 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 01:57:44,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [327014841] [2022-07-21 01:57:44,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [327014841] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:57:44,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:57:44,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 01:57:44,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574521784] [2022-07-21 01:57:44,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:57:44,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 01:57:44,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 01:57:44,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 01:57:44,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-07-21 01:57:44,062 INFO L87 Difference]: Start difference. First operand 43 states and 57 transitions. Second operand has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:44,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:57:44,190 INFO L93 Difference]: Finished difference Result 49 states and 62 transitions. [2022-07-21 01:57:44,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-21 01:57:44,191 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 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 17 [2022-07-21 01:57:44,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:57:44,191 INFO L225 Difference]: With dead ends: 49 [2022-07-21 01:57:44,192 INFO L226 Difference]: Without dead ends: 45 [2022-07-21 01:57:44,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-21 01:57:44,193 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 37 mSDsluCounter, 292 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 32 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 01:57:44,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 342 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 32 Unchecked, 0.0s Time] [2022-07-21 01:57:44,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-07-21 01:57:44,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2022-07-21 01:57:44,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 42 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:44,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 56 transitions. [2022-07-21 01:57:44,197 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 56 transitions. Word has length 17 [2022-07-21 01:57:44,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:57:44,197 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 56 transitions. [2022-07-21 01:57:44,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 9 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:44,198 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 56 transitions. [2022-07-21 01:57:44,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-07-21 01:57:44,198 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 01:57:44,198 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 01:57:44,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-21 01:57:44,410 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:57:44,411 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 01:57:44,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 01:57:44,412 INFO L85 PathProgramCache]: Analyzing trace with hash 469119878, now seen corresponding path program 1 times [2022-07-21 01:57:44,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-21 01:57:44,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [5685085] [2022-07-21 01:57:44,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 01:57:44,413 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-21 01:57:44,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-21 01:57:44,414 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) [2022-07-21 01:57:44,421 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-21 01:57:44,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 01:57:44,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-21 01:57:44,529 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 01:57:44,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-21 01:57:44,938 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 01:57:44,939 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-21 01:57:44,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [5685085] [2022-07-21 01:57:44,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [5685085] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 01:57:44,939 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 01:57:44,939 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-21 01:57:44,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387444265] [2022-07-21 01:57:44,939 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 01:57:44,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 01:57:44,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-21 01:57:44,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 01:57:44,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-21 01:57:44,940 INFO L87 Difference]: Start difference. First operand 43 states and 56 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:44,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 01:57:44,942 INFO L93 Difference]: Finished difference Result 43 states and 56 transitions. [2022-07-21 01:57:44,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 01:57:44,942 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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 [2022-07-21 01:57:44,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 01:57:44,942 INFO L225 Difference]: With dead ends: 43 [2022-07-21 01:57:44,943 INFO L226 Difference]: Without dead ends: 0 [2022-07-21 01:57:44,943 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-21 01:57:44,943 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 01:57:44,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 5 Unchecked, 0.0s Time] [2022-07-21 01:57:44,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-21 01:57:44,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-21 01:57:44,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:44,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-21 01:57:44,944 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2022-07-21 01:57:44,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 01:57:44,945 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-21 01:57:44,945 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-21 01:57:44,945 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-21 01:57:44,945 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-21 01:57:44,947 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-21 01:57:44,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-21 01:57:45,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-21 01:57:45,157 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-21 01:57:45,340 INFO L899 garLoopResultBuilder]: For program point L27(lines 27 31) no Hoare annotation was computed. [2022-07-21 01:57:45,341 INFO L899 garLoopResultBuilder]: For program point L60-1(lines 60 65) no Hoare annotation was computed. [2022-07-21 01:57:45,341 INFO L899 garLoopResultBuilder]: For program point L27-1(lines 19 107) no Hoare annotation was computed. [2022-07-21 01:57:45,341 INFO L899 garLoopResultBuilder]: For program point L27-2(lines 27 31) no Hoare annotation was computed. [2022-07-21 01:57:45,341 INFO L895 garLoopResultBuilder]: At program point L118(lines 110 119) the Hoare annotation is: (and (exists ((|v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6|) (_ bv0 32)))) (and (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) |ULTIMATE.start_main_~x~0#1|) (let ((.cse1 (bvslt (bvand (_ bv2147483647 32) .cse0) (_ bv2139095040 32)))) (or (and (not .cse1) (= |ULTIMATE.start_isfinite_float_#res#1| (_ bv0 32))) (and (= |ULTIMATE.start_isfinite_float_#res#1| (_ bv1 32)) .cse1)))))) (= |ULTIMATE.start_isfinite_float_~x#1| |ULTIMATE.start_main_~x~0#1|) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start_main_~y~0#1|))) [2022-07-21 01:57:45,341 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 75) no Hoare annotation was computed. [2022-07-21 01:57:45,341 INFO L899 garLoopResultBuilder]: For program point L36(lines 36 37) no Hoare annotation was computed. [2022-07-21 01:57:45,341 INFO L895 garLoopResultBuilder]: At program point L69-2(lines 67 76) the Hoare annotation is: false [2022-07-21 01:57:45,341 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-21 01:57:45,341 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-21 01:57:45,341 INFO L899 garLoopResultBuilder]: For program point L78(lines 78 80) no Hoare annotation was computed. [2022-07-21 01:57:45,342 INFO L899 garLoopResultBuilder]: For program point L78-2(lines 19 107) no Hoare annotation was computed. [2022-07-21 01:57:45,342 INFO L899 garLoopResultBuilder]: For program point L136(lines 136 139) no Hoare annotation was computed. [2022-07-21 01:57:45,342 INFO L899 garLoopResultBuilder]: For program point L54-1(lines 19 107) no Hoare annotation was computed. [2022-07-21 01:57:45,342 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 112 116) no Hoare annotation was computed. [2022-07-21 01:57:45,342 INFO L895 garLoopResultBuilder]: At program point L112-2(lines 112 116) the Hoare annotation is: (and (= |ULTIMATE.start_isfinite_float_~x#1| |ULTIMATE.start_main_~x~0#1|) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start_main_~y~0#1|))) [2022-07-21 01:57:45,342 INFO L899 garLoopResultBuilder]: For program point L112-3(lines 112 116) no Hoare annotation was computed. [2022-07-21 01:57:45,342 INFO L899 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2022-07-21 01:57:45,342 INFO L899 garLoopResultBuilder]: For program point L38(lines 38 39) no Hoare annotation was computed. [2022-07-21 01:57:45,342 INFO L899 garLoopResultBuilder]: For program point L88(lines 88 105) no Hoare annotation was computed. [2022-07-21 01:57:45,342 INFO L899 garLoopResultBuilder]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2022-07-21 01:57:45,342 INFO L895 garLoopResultBuilder]: At program point L22-2(lines 22 26) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start_fmod_float_~y#1|)) (= |ULTIMATE.start_fmod_float_~x#1| |ULTIMATE.start_main_~x~0#1|) (exists ((|v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6| (_ BitVec 32))) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6|) (_ bv0 32)))) (and (bvslt (bvand (_ bv2147483647 32) .cse0) (_ bv2139095040 32)) (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) |ULTIMATE.start_fmod_float_~x#1|))))) [2022-07-21 01:57:45,342 INFO L899 garLoopResultBuilder]: For program point L72(lines 72 73) no Hoare annotation was computed. [2022-07-21 01:57:45,342 INFO L899 garLoopResultBuilder]: For program point L48(lines 19 107) no Hoare annotation was computed. [2022-07-21 01:57:45,342 INFO L895 garLoopResultBuilder]: At program point L106(lines 19 107) the Hoare annotation is: (and (= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_fmod_float_#res#1|) (exists ((|v_ULTIMATE.start_isfinite_float_~ix~1#1_7| (_ BitVec 32))) (and (bvslt (bvand (_ bv2147483647 32) |v_ULTIMATE.start_isfinite_float_~ix~1#1_7|) (_ bv2139095040 32)) (= (fp ((_ extract 31 31) |v_ULTIMATE.start_isfinite_float_~ix~1#1_7|) ((_ extract 30 23) |v_ULTIMATE.start_isfinite_float_~ix~1#1_7|) ((_ extract 22 0) |v_ULTIMATE.start_isfinite_float_~ix~1#1_7|)) |ULTIMATE.start_main_~x~0#1|)))) [2022-07-21 01:57:45,342 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2022-07-21 01:57:45,342 INFO L899 garLoopResultBuilder]: For program point L131(lines 131 140) no Hoare annotation was computed. [2022-07-21 01:57:45,343 INFO L899 garLoopResultBuilder]: For program point L131-2(lines 131 140) no Hoare annotation was computed. [2022-07-21 01:57:45,343 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-21 01:57:45,343 INFO L899 garLoopResultBuilder]: For program point L90-1(lines 90 94) no Hoare annotation was computed. [2022-07-21 01:57:45,343 INFO L895 garLoopResultBuilder]: At program point L90-2(lines 90 94) the Hoare annotation is: false [2022-07-21 01:57:45,343 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 137) no Hoare annotation was computed. [2022-07-21 01:57:45,343 INFO L899 garLoopResultBuilder]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2022-07-21 01:57:45,343 INFO L895 garLoopResultBuilder]: At program point L49-3(lines 49 50) the Hoare annotation is: false [2022-07-21 01:57:45,343 INFO L899 garLoopResultBuilder]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2022-07-21 01:57:45,343 INFO L895 garLoopResultBuilder]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2022-07-21 01:57:45,343 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-21 01:57:45,343 INFO L899 garLoopResultBuilder]: For program point L99-3(lines 99 103) no Hoare annotation was computed. [2022-07-21 01:57:45,343 INFO L899 garLoopResultBuilder]: For program point L42(lines 42 46) no Hoare annotation was computed. [2022-07-21 01:57:45,343 INFO L899 garLoopResultBuilder]: For program point L42-1(lines 19 107) no Hoare annotation was computed. [2022-07-21 01:57:45,343 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 67 76) no Hoare annotation was computed. [2022-07-21 01:57:45,344 INFO L899 garLoopResultBuilder]: For program point L67-3(lines 67 76) no Hoare annotation was computed. [2022-07-21 01:57:45,344 INFO L895 garLoopResultBuilder]: At program point L84-2(lines 84 87) the Hoare annotation is: false [2022-07-21 01:57:45,344 INFO L899 garLoopResultBuilder]: For program point L84-3(lines 19 107) no Hoare annotation was computed. [2022-07-21 01:57:45,344 INFO L902 garLoopResultBuilder]: At program point L142(lines 121 143) the Hoare annotation is: true [2022-07-21 01:57:45,344 INFO L899 garLoopResultBuilder]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2022-07-21 01:57:45,344 INFO L895 garLoopResultBuilder]: At program point L43-3(lines 43 44) the Hoare annotation is: false [2022-07-21 01:57:45,346 INFO L356 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-07-21 01:57:45,347 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-21 01:57:45,353 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-21 01:57:45,353 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-21 01:57:45,354 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,354 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,354 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,354 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,357 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-21 01:57:45,358 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-21 01:57:45,358 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,358 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,358 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,358 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,359 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,359 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,359 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,359 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,359 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,360 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-21 01:57:45,360 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-21 01:57:45,360 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,360 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,360 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,360 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,360 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,361 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-21 01:57:45,361 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-21 01:57:45,361 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-21 01:57:45,361 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-21 01:57:45,361 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-21 01:57:45,361 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-21 01:57:45,362 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2022-07-21 01:57:45,362 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2022-07-21 01:57:45,362 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2022-07-21 01:57:45,362 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2022-07-21 01:57:45,362 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2022-07-21 01:57:45,362 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2022-07-21 01:57:45,362 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2022-07-21 01:57:45,362 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2022-07-21 01:57:45,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:57:45 BoogieIcfgContainer [2022-07-21 01:57:45,363 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-21 01:57:45,363 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-21 01:57:45,363 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-21 01:57:45,364 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-21 01:57:45,364 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:57:40" (3/4) ... [2022-07-21 01:57:45,366 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-21 01:57:45,376 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-07-21 01:57:45,376 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-07-21 01:57:45,377 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-21 01:57:45,377 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-21 01:57:45,392 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == x && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == y) [2022-07-21 01:57:45,393 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6 : bv32 :: ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32][22:0]) == x && ((!~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32]), 2139095040bv32) && \result == 0bv32) || (\result == 1bv32 && ~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32]), 2139095040bv32)))) && x == x) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == y) [2022-07-21 01:57:45,393 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == y) && x == x) && (\exists v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6 : bv32 :: ~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32]), 2139095040bv32) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32][22:0]) == x) [2022-07-21 01:57:45,411 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-21 01:57:45,411 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-21 01:57:45,412 INFO L158 Benchmark]: Toolchain (without parser) took 7436.24ms. Allocated memory was 67.1MB in the beginning and 96.5MB in the end (delta: 29.4MB). Free memory was 47.9MB in the beginning and 49.0MB in the end (delta: -1.1MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2022-07-21 01:57:45,412 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 67.1MB. Free memory was 49.5MB in the beginning and 49.4MB in the end (delta: 49.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-21 01:57:45,412 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.30ms. Allocated memory is still 67.1MB. Free memory was 47.7MB in the beginning and 48.9MB in the end (delta: -1.2MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2022-07-21 01:57:45,412 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.09ms. Allocated memory is still 67.1MB. Free memory was 48.9MB in the beginning and 46.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 01:57:45,413 INFO L158 Benchmark]: Boogie Preprocessor took 38.42ms. Allocated memory is still 67.1MB. Free memory was 46.8MB in the beginning and 44.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 01:57:45,413 INFO L158 Benchmark]: RCFGBuilder took 2636.75ms. Allocated memory was 67.1MB in the beginning and 96.5MB in the end (delta: 29.4MB). Free memory was 44.8MB in the beginning and 77.0MB in the end (delta: -32.2MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2022-07-21 01:57:45,413 INFO L158 Benchmark]: TraceAbstraction took 4465.76ms. Allocated memory is still 96.5MB. Free memory was 76.6MB in the beginning and 51.8MB in the end (delta: 24.8MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2022-07-21 01:57:45,413 INFO L158 Benchmark]: Witness Printer took 48.03ms. Allocated memory is still 96.5MB. Free memory was 51.8MB in the beginning and 49.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-21 01:57:45,414 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 67.1MB. Free memory was 49.5MB in the beginning and 49.4MB in the end (delta: 49.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 213.30ms. Allocated memory is still 67.1MB. Free memory was 47.7MB in the beginning and 48.9MB in the end (delta: -1.2MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.09ms. Allocated memory is still 67.1MB. Free memory was 48.9MB in the beginning and 46.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.42ms. Allocated memory is still 67.1MB. Free memory was 46.8MB in the beginning and 44.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2636.75ms. Allocated memory was 67.1MB in the beginning and 96.5MB in the end (delta: 29.4MB). Free memory was 44.8MB in the beginning and 77.0MB in the end (delta: -32.2MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4465.76ms. Allocated memory is still 96.5MB. Free memory was 76.6MB in the beginning and 51.8MB in the end (delta: 24.8MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. * Witness Printer took 48.03ms. Allocated memory is still 96.5MB. Free memory was 51.8MB in the beginning and 49.0MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 137]: 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, 47 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 771 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 152 IncrementalHoareTripleChecker+Unchecked, 600 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 171 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 62 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, InterpolantAutomatonStates: 28, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 16 NumberOfFragments, 152 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 47 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 60 ConstructedInterpolants, 34 QuantifiedInterpolants, 992 SizeOfPredicates, 33 NumberOfNonLiveVariables, 299 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2022-07-21 01:57:45,419 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-21 01:57:45,419 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-21 01:57:45,420 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,420 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,420 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,420 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,420 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-21 01:57:45,420 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-21 01:57:45,420 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,421 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,421 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,421 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == y) && x == x) && (\exists v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6 : bv32 :: ~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32]), 2139095040bv32) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32][22:0]) == x) - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 110]: Loop Invariant [2022-07-21 01:57:45,421 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,421 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,421 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,421 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,421 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,422 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-21 01:57:45,422 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-21 01:57:45,422 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,422 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,422 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,422 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,422 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6,QUANTIFIED] [2022-07-21 01:57:45,422 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-21 01:57:45,422 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((\exists v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6 : bv32 :: ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32][22:0]) == x && ((!~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32]), 2139095040bv32) && \result == 0bv32) || (\result == 1bv32 && ~bvslt32(~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start_isfinite_float_~#gf_u~2#1.base_6][0bv32]), 2139095040bv32)))) && x == x) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == y) - InvariantResult [Line: 112]: Loop Invariant [2022-07-21 01:57:45,423 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-21 01:57:45,423 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-21 01:57:45,423 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2022-07-21 01:57:45,423 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: x == x && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == y) - InvariantResult [Line: 19]: Loop Invariant [2022-07-21 01:57:45,424 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2022-07-21 01:57:45,424 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2022-07-21 01:57:45,424 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2022-07-21 01:57:45,424 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2022-07-21 01:57:45,424 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2022-07-21 01:57:45,424 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2022-07-21 01:57:45,424 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] [2022-07-21 01:57:45,424 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_isfinite_float_~ix~1#1_7,QUANTIFIED] Derived loop invariant: x == \result && (\exists v_ULTIMATE.start_isfinite_float_~ix~1#1_7 : bv32 :: ~bvslt32(~bvand32(2147483647bv32, v_ULTIMATE.start_isfinite_float_~ix~1#1_7), 2139095040bv32) && ~fp~LONGDOUBLE(v_ULTIMATE.start_isfinite_float_~ix~1#1_7[31:31], v_ULTIMATE.start_isfinite_float_~ix~1#1_7[30:23], v_ULTIMATE.start_isfinite_float_~ix~1#1_7[22:0]) == x) RESULT: Ultimate proved your program to be correct! [2022-07-21 01:57:45,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE