./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/addsub_float_inexact.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 03d7b7b3 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/addsub_float_inexact.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 724458914ec915bd8588c7b3947050b7176e90c12f1440cbedde17891f240f2d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:21:01,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:21:01,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:21:01,936 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:21:01,936 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:21:01,939 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:21:01,940 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:21:01,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:21:01,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:21:01,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:21:01,947 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:21:01,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:21:01,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:21:01,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:21:01,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:21:01,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:21:01,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:21:01,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:21:01,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:21:01,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:21:01,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:21:01,963 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:21:01,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:21:01,964 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:21:01,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:21:01,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:21:01,970 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:21:01,971 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:21:01,971 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:21:01,972 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:21:01,972 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:21:01,973 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:21:01,974 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:21:01,975 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:21:01,976 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:21:01,976 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:21:01,976 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:21:01,976 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:21:01,977 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:21:01,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:21:01,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:21:01,978 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-02-20 16:21:02,003 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:21:02,003 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:21:02,004 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:21:02,004 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:21:02,005 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:21:02,005 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:21:02,005 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:21:02,006 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:21:02,006 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:21:02,006 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:21:02,007 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:21:02,007 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 16:21:02,007 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:21:02,007 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:21:02,007 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:21:02,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:21:02,008 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:21:02,008 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:21:02,008 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:21:02,008 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:21:02,008 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:21:02,009 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:21:02,009 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:21:02,009 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:21:02,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:21:02,009 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:21:02,009 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:21:02,010 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:21:02,010 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 16:21:02,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 16:21:02,010 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:21:02,010 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:21:02,011 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:21:02,011 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 724458914ec915bd8588c7b3947050b7176e90c12f1440cbedde17891f240f2d [2022-02-20 16:21:02,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:21:02,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:21:02,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:21:02,257 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:21:02,258 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:21:02,259 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2022-02-20 16:21:02,307 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7293b4a4e/976bddd3829a4257a305b10a51d900dc/FLAG39477400d [2022-02-20 16:21:02,649 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:21:02,649 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2022-02-20 16:21:02,656 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7293b4a4e/976bddd3829a4257a305b10a51d900dc/FLAG39477400d [2022-02-20 16:21:02,669 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7293b4a4e/976bddd3829a4257a305b10a51d900dc [2022-02-20 16:21:02,671 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:21:02,672 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:21:02,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:21:02,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:21:02,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:21:02,678 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:21:02" (1/1) ... [2022-02-20 16:21:02,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1006556e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:02, skipping insertion in model container [2022-02-20 16:21:02,679 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:21:02" (1/1) ... [2022-02-20 16:21:02,685 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:21:02,694 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:21:02,845 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-benchs/addsub_float_inexact.c[394,407] [2022-02-20 16:21:02,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:21:02,870 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:21:02,879 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-benchs/addsub_float_inexact.c[394,407] [2022-02-20 16:21:02,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:21:02,899 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:21:02,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:02 WrapperNode [2022-02-20 16:21:02,900 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:21:02,901 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:21:02,901 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:21:02,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:21:02,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:02" (1/1) ... [2022-02-20 16:21:02,911 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:02" (1/1) ... [2022-02-20 16:21:02,925 INFO L137 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27 [2022-02-20 16:21:02,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:21:02,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:21:02,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:21:02,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:21:02,933 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:02" (1/1) ... [2022-02-20 16:21:02,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:02" (1/1) ... [2022-02-20 16:21:02,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:02" (1/1) ... [2022-02-20 16:21:02,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:02" (1/1) ... [2022-02-20 16:21:02,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:02" (1/1) ... [2022-02-20 16:21:02,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:02" (1/1) ... [2022-02-20 16:21:02,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:02" (1/1) ... [2022-02-20 16:21:02,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:21:02,947 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:21:02,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:21:02,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:21:02,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:02" (1/1) ... [2022-02-20 16:21:02,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:21:02,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:21:02,973 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 16:21:02,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 16:21:03,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:21:03,005 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:21:03,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:21:03,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-20 16:21:03,042 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:21:03,043 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:21:03,106 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:21:03,110 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:21:03,111 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 16:21:03,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:21:03 BoogieIcfgContainer [2022-02-20 16:21:03,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:21:03,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:21:03,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:21:03,116 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:21:03,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:21:02" (1/3) ... [2022-02-20 16:21:03,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bc5246a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:21:03, skipping insertion in model container [2022-02-20 16:21:03,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:02" (2/3) ... [2022-02-20 16:21:03,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bc5246a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:21:03, skipping insertion in model container [2022-02-20 16:21:03,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:21:03" (3/3) ... [2022-02-20 16:21:03,118 INFO L111 eAbstractionObserver]: Analyzing ICFG addsub_float_inexact.c [2022-02-20 16:21:03,122 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:21:03,122 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 16:21:03,151 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:21:03,155 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 16:21:03,156 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 16:21:03,166 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:21:03,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-02-20 16:21:03,169 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:21:03,170 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2022-02-20 16:21:03,171 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:21:03,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:21:03,177 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2022-02-20 16:21:03,184 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 16:21:03,184 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654947098] [2022-02-20 16:21:03,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:21:03,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 16:21:03,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:21:03,263 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-02-20 16:21:03,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-02-20 16:21:03,300 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-02-20 16:21:03,301 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-02-20 16:21:03,302 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-20 16:21:03,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 16:21:03,307 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-20 16:21:03,310 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 16:21:03,329 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 16:21:03,329 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 16:21:03,329 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2022-02-20 16:21:03,329 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2022-02-20 16:21:03,330 WARN L170 areAnnotationChecker]: L6-1 has no Hoare annotation [2022-02-20 16:21:03,330 WARN L170 areAnnotationChecker]: L6-1 has no Hoare annotation [2022-02-20 16:21:03,330 WARN L170 areAnnotationChecker]: L6-3 has no Hoare annotation [2022-02-20 16:21:03,330 WARN L170 areAnnotationChecker]: L17 has no Hoare annotation [2022-02-20 16:21:03,331 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 16:21:03,331 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-02-20 16:21:03,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 04:21:03 BoogieIcfgContainer [2022-02-20 16:21:03,332 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 16:21:03,334 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 16:21:03,334 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 16:21:03,334 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 16:21:03,335 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:21:03" (3/4) ... [2022-02-20 16:21:03,337 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-02-20 16:21:03,338 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 16:21:03,339 INFO L158 Benchmark]: Toolchain (without parser) took 666.31ms. Allocated memory was 115.3MB in the beginning and 140.5MB in the end (delta: 25.2MB). Free memory was 86.7MB in the beginning and 89.6MB in the end (delta: -2.9MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2022-02-20 16:21:03,340 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 115.3MB. Free memory was 70.7MB in the beginning and 70.6MB in the end (delta: 91.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:21:03,341 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.09ms. Allocated memory was 115.3MB in the beginning and 140.5MB in the end (delta: 25.2MB). Free memory was 86.7MB in the beginning and 115.2MB in the end (delta: -28.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-20 16:21:03,341 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.34ms. Allocated memory is still 140.5MB. Free memory was 115.2MB in the beginning and 113.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:21:03,344 INFO L158 Benchmark]: Boogie Preprocessor took 17.73ms. Allocated memory is still 140.5MB. Free memory was 113.4MB in the beginning and 112.7MB in the end (delta: 772.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:21:03,345 INFO L158 Benchmark]: RCFGBuilder took 164.87ms. Allocated memory is still 140.5MB. Free memory was 112.6MB in the beginning and 104.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-20 16:21:03,346 INFO L158 Benchmark]: TraceAbstraction took 218.60ms. Allocated memory is still 140.5MB. Free memory was 103.4MB in the beginning and 90.3MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-20 16:21:03,347 INFO L158 Benchmark]: Witness Printer took 3.77ms. Allocated memory is still 140.5MB. Free memory was 90.3MB in the beginning and 89.6MB in the end (delta: 682.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:21:03,352 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 115.3MB. Free memory was 70.7MB in the beginning and 70.6MB in the end (delta: 91.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 225.09ms. Allocated memory was 115.3MB in the beginning and 140.5MB in the end (delta: 25.2MB). Free memory was 86.7MB in the beginning and 115.2MB in the end (delta: -28.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.34ms. Allocated memory is still 140.5MB. Free memory was 115.2MB in the beginning and 113.4MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.73ms. Allocated memory is still 140.5MB. Free memory was 113.4MB in the beginning and 112.7MB in the end (delta: 772.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 164.87ms. Allocated memory is still 140.5MB. Free memory was 112.6MB in the beginning and 104.3MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 218.60ms. Allocated memory is still 140.5MB. Free memory was 103.4MB in the beginning and 90.3MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 3.77ms. Allocated memory is still 140.5MB. Free memory was 90.3MB in the beginning and 89.6MB in the end (delta: 682.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s 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: 6]: 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 16, overapproximation of someBinaryArithmeticFLOAToperation at line 13. Possible FailurePath: [L10] float x, y, z, r; [L12] x = 1e8f [L13] y = x + 1.f [L14] z = x - 1.f [L15] r = y - z [L16] CALL __VERIFIER_assert(r == 0.f) [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-02-20 16:21:03,391 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/addsub_float_inexact.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 724458914ec915bd8588c7b3947050b7176e90c12f1440cbedde17891f240f2d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-03d7b7b [2022-02-20 16:21:04,944 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 16:21:04,945 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 16:21:04,973 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 16:21:04,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 16:21:04,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 16:21:04,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 16:21:04,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 16:21:04,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 16:21:04,986 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 16:21:04,987 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 16:21:04,990 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 16:21:04,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 16:21:05,000 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 16:21:05,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 16:21:05,002 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 16:21:05,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 16:21:05,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 16:21:05,006 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 16:21:05,010 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 16:21:05,011 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 16:21:05,011 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 16:21:05,012 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 16:21:05,013 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 16:21:05,018 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-20 16:21:05,018 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-20 16:21:05,018 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-20 16:21:05,019 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-20 16:21:05,019 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-20 16:21:05,020 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-20 16:21:05,020 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-20 16:21:05,021 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-20 16:21:05,022 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-20 16:21:05,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-20 16:21:05,023 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-20 16:21:05,023 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-20 16:21:05,023 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-20 16:21:05,024 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-20 16:21:05,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 16:21:05,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 16:21:05,025 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 16:21:05,028 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-02-20 16:21:05,052 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 16:21:05,052 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 16:21:05,053 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 16:21:05,053 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 16:21:05,054 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 16:21:05,054 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 16:21:05,055 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 16:21:05,055 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 16:21:05,055 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 16:21:05,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 16:21:05,056 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 16:21:05,056 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 16:21:05,056 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 16:21:05,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 16:21:05,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 16:21:05,057 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 16:21:05,057 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-02-20 16:21:05,057 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-02-20 16:21:05,057 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-02-20 16:21:05,057 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 16:21:05,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 16:21:05,058 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 16:21:05,058 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 16:21:05,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 16:21:05,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 16:21:05,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 16:21:05,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:21:05,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 16:21:05,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 16:21:05,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 16:21:05,059 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-02-20 16:21:05,059 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-02-20 16:21:05,059 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 16:21:05,059 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-02-20 16:21:05,060 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 16:21:05,060 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-02-20 16:21:05,060 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 724458914ec915bd8588c7b3947050b7176e90c12f1440cbedde17891f240f2d [2022-02-20 16:21:05,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 16:21:05,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 16:21:05,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 16:21:05,310 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-20 16:21:05,311 INFO L275 PluginConnector]: CDTParser initialized [2022-02-20 16:21:05,312 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2022-02-20 16:21:05,367 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4aebbb474/3f0d78b0533e4457b94b6d91c8ca5701/FLAG88d2cbf11 [2022-02-20 16:21:05,683 INFO L306 CDTParser]: Found 1 translation units. [2022-02-20 16:21:05,684 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2022-02-20 16:21:05,688 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4aebbb474/3f0d78b0533e4457b94b6d91c8ca5701/FLAG88d2cbf11 [2022-02-20 16:21:06,113 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4aebbb474/3f0d78b0533e4457b94b6d91c8ca5701 [2022-02-20 16:21:06,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 16:21:06,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-02-20 16:21:06,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-20 16:21:06,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-20 16:21:06,122 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-20 16:21:06,123 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:21:06" (1/1) ... [2022-02-20 16:21:06,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37fb9207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:06, skipping insertion in model container [2022-02-20 16:21:06,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.02 04:21:06" (1/1) ... [2022-02-20 16:21:06,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-20 16:21:06,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-20 16:21:06,213 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-benchs/addsub_float_inexact.c[394,407] [2022-02-20 16:21:06,219 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:21:06,228 INFO L203 MainTranslator]: Completed pre-run [2022-02-20 16:21:06,236 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-benchs/addsub_float_inexact.c[394,407] [2022-02-20 16:21:06,237 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-20 16:21:06,270 INFO L208 MainTranslator]: Completed translation [2022-02-20 16:21:06,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:06 WrapperNode [2022-02-20 16:21:06,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-20 16:21:06,273 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 16:21:06,274 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 16:21:06,274 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 16:21:06,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:06" (1/1) ... [2022-02-20 16:21:06,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:06" (1/1) ... [2022-02-20 16:21:06,295 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 28 [2022-02-20 16:21:06,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 16:21:06,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 16:21:06,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 16:21:06,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 16:21:06,303 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:06" (1/1) ... [2022-02-20 16:21:06,303 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:06" (1/1) ... [2022-02-20 16:21:06,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:06" (1/1) ... [2022-02-20 16:21:06,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:06" (1/1) ... [2022-02-20 16:21:06,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:06" (1/1) ... [2022-02-20 16:21:06,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:06" (1/1) ... [2022-02-20 16:21:06,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:06" (1/1) ... [2022-02-20 16:21:06,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 16:21:06,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 16:21:06,334 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 16:21:06,334 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 16:21:06,335 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:06" (1/1) ... [2022-02-20 16:21:06,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 16:21:06,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 16:21:06,360 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-20 16:21:06,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-20 16:21:06,390 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-20 16:21:06,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 16:21:06,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 16:21:06,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-02-20 16:21:06,432 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 16:21:06,434 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 16:21:06,624 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 16:21:06,628 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 16:21:06,628 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 16:21:06,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:21:06 BoogieIcfgContainer [2022-02-20 16:21:06,629 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 16:21:06,630 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 16:21:06,631 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 16:21:06,632 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 16:21:06,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.02 04:21:06" (1/3) ... [2022-02-20 16:21:06,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744f6c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:21:06, skipping insertion in model container [2022-02-20 16:21:06,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.02 04:21:06" (2/3) ... [2022-02-20 16:21:06,633 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744f6c3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:21:06, skipping insertion in model container [2022-02-20 16:21:06,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:21:06" (3/3) ... [2022-02-20 16:21:06,634 INFO L111 eAbstractionObserver]: Analyzing ICFG addsub_float_inexact.c [2022-02-20 16:21:06,637 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 16:21:06,638 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 16:21:06,698 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 16:21:06,712 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-20 16:21:06,713 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-20 16:21:06,749 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:21:06,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-02-20 16:21:06,752 INFO L506 BasicCegarLoop]: Found error trace [2022-02-20 16:21:06,753 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2022-02-20 16:21:06,753 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-20 16:21:06,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 16:21:06,759 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2022-02-20 16:21:06,766 INFO L126 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-02-20 16:21:06,767 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1213931707] [2022-02-20 16:21:06,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 16:21:06,768 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-02-20 16:21:06,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-02-20 16:21:06,773 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-02-20 16:21:06,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-02-20 16:21:06,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:21:06,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-20 16:21:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 16:21:06,888 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 16:21:07,045 INFO L290 TraceCheckUtils]: 0: Hoare triple {12#true} assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0bv32, 0bv32;assume 0bv1 == #valid[0bv32];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;call #Ultimate.allocInit(2bv32, 1bv32);call write~init~intINTTYPE1(48bv8, 1bv32, 0bv32, 1bv32);call write~init~intINTTYPE1(0bv8, 1bv32, 1bv32, 1bv32);call #Ultimate.allocInit(23bv32, 2bv32);call #Ultimate.allocInit(12bv32, 3bv32); {17#(= currentRoundingMode roundNearestTiesToEven)} is VALID [2022-02-20 16:21:07,047 INFO L290 TraceCheckUtils]: 1: Hoare triple {17#(= currentRoundingMode roundNearestTiesToEven)} assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~x~0#1, main_~y~0#1, main_~z~0#1, main_~r~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~z~0#1;havoc main_~r~0#1;main_~x~0#1 := ~to_fp~FLOAT(currentRoundingMode, 1.0E8);main_~y~0#1 := ~fp.add~FLOAT(currentRoundingMode, main_~x~0#1, ~to_fp~FLOAT(currentRoundingMode, 1.0));main_~z~0#1 := ~fp.sub~FLOAT(currentRoundingMode, main_~x~0#1, ~to_fp~FLOAT(currentRoundingMode, 1.0));main_~r~0#1 := ~fp.sub~FLOAT(currentRoundingMode, main_~y~0#1, main_~z~0#1);assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if ~fp.eq~FLOAT(main_~r~0#1, ~Pluszero~FLOAT()) then 1bv32 else 0bv32);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; {21#(= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))} is VALID [2022-02-20 16:21:07,047 INFO L290 TraceCheckUtils]: 2: Hoare triple {21#(= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))} assume 0bv32 == __VERIFIER_assert_~cond#1; {13#false} is VALID [2022-02-20 16:21:07,048 INFO L290 TraceCheckUtils]: 3: Hoare triple {13#false} assume !false; {13#false} is VALID [2022-02-20 16:21:07,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 16:21:07,049 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-20 16:21:07,049 INFO L144 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-02-20 16:21:07,049 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1213931707] [2022-02-20 16:21:07,050 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1213931707] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 16:21:07,050 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 16:21:07,050 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 16:21:07,051 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948084188] [2022-02-20 16:21:07,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 16:21:07,055 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-02-20 16:21:07,056 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-02-20 16:21:07,058 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:21:07,143 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:21:07,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-20 16:21:07,144 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-02-20 16:21:07,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-20 16:21:07,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-20 16:21:07,159 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 8 states have internal predecessors, (9), 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 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:21:07,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:21:07,255 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2022-02-20 16:21:07,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-20 16:21:07,255 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-02-20 16:21:07,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-20 16:21:07,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:21:07,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2022-02-20 16:21:07,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:21:07,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 12 transitions. [2022-02-20 16:21:07,260 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 12 transitions. [2022-02-20 16:21:07,325 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-02-20 16:21:07,329 INFO L225 Difference]: With dead ends: 13 [2022-02-20 16:21:07,329 INFO L226 Difference]: Without dead ends: 0 [2022-02-20 16:21:07,330 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-20 16:21:07,333 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-20 16:21:07,334 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 5 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-20 16:21:07,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-20 16:21:07,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-20 16:21:07,347 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-02-20 16:21:07,348 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:21:07,348 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:21:07,348 INFO L87 Difference]: Start difference. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:21:07,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:21:07,349 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-02-20 16:21:07,349 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-20 16:21:07,349 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:21:07,349 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:21:07,349 INFO L74 IsIncluded]: Start isIncluded. First operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 0 states. [2022-02-20 16:21:07,350 INFO L87 Difference]: Start difference. First operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 0 states. [2022-02-20 16:21:07,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-20 16:21:07,350 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-02-20 16:21:07,350 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-20 16:21:07,350 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:21:07,350 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-02-20 16:21:07,351 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-02-20 16:21:07,351 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-02-20 16:21:07,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:21:07,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-20 16:21:07,352 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2022-02-20 16:21:07,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-20 16:21:07,352 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-20 16:21:07,353 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 16:21:07,353 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-20 16:21:07,353 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-20 16:21:07,355 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-20 16:21:07,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-02-20 16:21:07,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-02-20 16:21:07,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-02-20 16:21:07,606 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-02-20 16:21:07,606 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-02-20 16:21:07,607 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-02-20 16:21:07,608 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-02-20 16:21:07,608 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2022-02-20 16:21:07,608 INFO L854 garLoopResultBuilder]: At program point L17(lines 8 18) the Hoare annotation is: (and (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (= currentRoundingMode roundNearestTiesToEven)) [2022-02-20 16:21:07,608 INFO L858 garLoopResultBuilder]: For program point L6(line 6) no Hoare annotation was computed. [2022-02-20 16:21:07,608 INFO L858 garLoopResultBuilder]: For program point L6-1(line 6) no Hoare annotation was computed. [2022-02-20 16:21:07,609 INFO L854 garLoopResultBuilder]: At program point L6-3(line 6) the Hoare annotation is: (and (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (= currentRoundingMode roundNearestTiesToEven)) [2022-02-20 16:21:07,613 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-02-20 16:21:07,617 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 16:21:07,620 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-02-20 16:21:07,620 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-02-20 16:21:07,621 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2022-02-20 16:21:07,621 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2022-02-20 16:21:07,621 WARN L170 areAnnotationChecker]: L6-1 has no Hoare annotation [2022-02-20 16:21:07,621 WARN L170 areAnnotationChecker]: L6-1 has no Hoare annotation [2022-02-20 16:21:07,622 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 16:21:07,622 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-02-20 16:21:07,623 INFO L163 areAnnotationChecker]: CFG has 1 edges. 1 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-02-20 16:21:07,626 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-02-20 16:21:07,628 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-02-20 16:21:07,629 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-02-20 16:21:07,629 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-02-20 16:21:07,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 04:21:07 BoogieIcfgContainer [2022-02-20 16:21:07,630 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 16:21:07,630 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-02-20 16:21:07,630 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-02-20 16:21:07,630 INFO L275 PluginConnector]: Witness Printer initialized [2022-02-20 16:21:07,631 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:21:06" (3/4) ... [2022-02-20 16:21:07,632 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-02-20 16:21:07,638 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-02-20 16:21:07,638 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-02-20 16:21:07,638 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-02-20 16:21:07,638 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-02-20 16:21:07,682 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-02-20 16:21:07,683 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-02-20 16:21:07,685 INFO L158 Benchmark]: Toolchain (without parser) took 1566.20ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 44.9MB in the beginning and 43.3MB in the end (delta: 1.6MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2022-02-20 16:21:07,685 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 65.0MB. Free memory was 46.1MB in the beginning and 46.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:21:07,685 INFO L158 Benchmark]: CACSL2BoogieTranslator took 153.22ms. Allocated memory is still 65.0MB. Free memory was 44.7MB in the beginning and 48.2MB in the end (delta: -3.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-02-20 16:21:07,685 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.15ms. Allocated memory is still 65.0MB. Free memory was 48.2MB in the beginning and 46.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:21:07,686 INFO L158 Benchmark]: Boogie Preprocessor took 36.96ms. Allocated memory is still 65.0MB. Free memory was 46.4MB in the beginning and 45.5MB in the end (delta: 921.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-02-20 16:21:07,686 INFO L158 Benchmark]: RCFGBuilder took 295.47ms. Allocated memory is still 65.0MB. Free memory was 45.2MB in the beginning and 37.5MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-02-20 16:21:07,686 INFO L158 Benchmark]: TraceAbstraction took 999.14ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 36.9MB in the beginning and 45.8MB in the end (delta: -8.9MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2022-02-20 16:21:07,686 INFO L158 Benchmark]: Witness Printer took 52.60ms. Allocated memory is still 81.8MB. Free memory was 45.8MB in the beginning and 43.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-02-20 16:21:07,689 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 65.0MB. Free memory was 46.1MB in the beginning and 46.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 153.22ms. Allocated memory is still 65.0MB. Free memory was 44.7MB in the beginning and 48.2MB in the end (delta: -3.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.15ms. Allocated memory is still 65.0MB. Free memory was 48.2MB in the beginning and 46.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.96ms. Allocated memory is still 65.0MB. Free memory was 46.4MB in the beginning and 45.5MB in the end (delta: 921.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 295.47ms. Allocated memory is still 65.0MB. Free memory was 45.2MB in the beginning and 37.5MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 999.14ms. Allocated memory was 65.0MB in the beginning and 81.8MB in the end (delta: 16.8MB). Free memory was 36.9MB in the beginning and 45.8MB in the end (delta: -8.9MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * Witness Printer took 52.60ms. Allocated memory is still 81.8MB. Free memory was 45.8MB in the beginning and 43.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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: 6]: 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, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 4 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 4, 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: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 14 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 6 NumberOfNonLiveVariables, 23 ConjunctsInSsa, 8 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 6]: Loop Invariant [2022-02-20 16:21:07,708 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-02-20 16:21:07,709 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: cond == 1bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 8]: Loop Invariant [2022-02-20 16:21:07,710 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-02-20 16:21:07,711 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: cond == 1bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven RESULT: Ultimate proved your program to be correct! [2022-02-20 16:21:07,751 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