./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/addsub_double_exact.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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-benchs/addsub_double_exact.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 f4d7a62ffde252cff873ff489678769664732fba2c78998e7abea39f2d3f98ac --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 02:23:08,985 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 02:23:08,987 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 02:23:09,024 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 02:23:09,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 02:23:09,025 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 02:23:09,027 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 02:23:09,028 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 02:23:09,029 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 02:23:09,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 02:23:09,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 02:23:09,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 02:23:09,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 02:23:09,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 02:23:09,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 02:23:09,041 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 02:23:09,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 02:23:09,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 02:23:09,044 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 02:23:09,048 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 02:23:09,050 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 02:23:09,050 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 02:23:09,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 02:23:09,052 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 02:23:09,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 02:23:09,064 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 02:23:09,065 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 02:23:09,065 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 02:23:09,066 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 02:23:09,066 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 02:23:09,067 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 02:23:09,067 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 02:23:09,068 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 02:23:09,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 02:23:09,069 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 02:23:09,069 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 02:23:09,070 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 02:23:09,070 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 02:23:09,070 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 02:23:09,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 02:23:09,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 02:23:09,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 02:23:09,074 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 02:23:09,096 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 02:23:09,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 02:23:09,097 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 02:23:09,097 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 02:23:09,097 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 02:23:09,097 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 02:23:09,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 02:23:09,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 02:23:09,098 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 02:23:09,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 02:23:09,099 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 02:23:09,099 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 02:23:09,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 02:23:09,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 02:23:09,099 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 02:23:09,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 02:23:09,100 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 02:23:09,100 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 02:23:09,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 02:23:09,101 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 02:23:09,101 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 02:23:09,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 02:23:09,101 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 02:23:09,102 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 02:23:09,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:23:09,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 02:23:09,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 02:23:09,102 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 02:23:09,102 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 02:23:09,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 02:23:09,103 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 02:23:09,103 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 02:23:09,103 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 02:23:09,103 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4d7a62ffde252cff873ff489678769664732fba2c78998e7abea39f2d3f98ac [2022-07-12 02:23:09,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 02:23:09,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 02:23:09,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 02:23:09,306 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 02:23:09,307 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 02:23:09,308 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/addsub_double_exact.c [2022-07-12 02:23:09,365 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18a0e80fc/e11640b87cbd4e94892e4cce32ca6347/FLAG229151cae [2022-07-12 02:23:09,729 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 02:23:09,730 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/addsub_double_exact.c [2022-07-12 02:23:09,734 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18a0e80fc/e11640b87cbd4e94892e4cce32ca6347/FLAG229151cae [2022-07-12 02:23:10,164 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18a0e80fc/e11640b87cbd4e94892e4cce32ca6347 [2022-07-12 02:23:10,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 02:23:10,166 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 02:23:10,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 02:23:10,168 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 02:23:10,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 02:23:10,170 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:23:10" (1/1) ... [2022-07-12 02:23:10,171 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33fc4e8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:10, skipping insertion in model container [2022-07-12 02:23:10,171 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:23:10" (1/1) ... [2022-07-12 02:23:10,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 02:23:10,183 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 02:23:10,300 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_double_exact.c[393,406] [2022-07-12 02:23:10,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:23:10,313 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 02:23:10,320 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_double_exact.c[393,406] [2022-07-12 02:23:10,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:23:10,331 INFO L208 MainTranslator]: Completed translation [2022-07-12 02:23:10,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:10 WrapperNode [2022-07-12 02:23:10,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 02:23:10,332 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 02:23:10,332 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 02:23:10,332 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 02:23:10,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:10" (1/1) ... [2022-07-12 02:23:10,343 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:10" (1/1) ... [2022-07-12 02:23:10,355 INFO L137 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 27 [2022-07-12 02:23:10,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 02:23:10,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 02:23:10,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 02:23:10,357 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 02:23:10,361 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:10" (1/1) ... [2022-07-12 02:23:10,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:10" (1/1) ... [2022-07-12 02:23:10,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:10" (1/1) ... [2022-07-12 02:23:10,364 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:10" (1/1) ... [2022-07-12 02:23:10,367 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:10" (1/1) ... [2022-07-12 02:23:10,369 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:10" (1/1) ... [2022-07-12 02:23:10,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:10" (1/1) ... [2022-07-12 02:23:10,373 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 02:23:10,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 02:23:10,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 02:23:10,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 02:23:10,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:10" (1/1) ... [2022-07-12 02:23:10,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:23:10,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 02:23:10,415 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) [2022-07-12 02:23:10,465 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 [2022-07-12 02:23:10,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 02:23:10,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 02:23:10,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 02:23:10,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 02:23:10,522 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 02:23:10,523 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 02:23:10,582 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 02:23:10,586 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 02:23:10,587 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 02:23:10,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:23:10 BoogieIcfgContainer [2022-07-12 02:23:10,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 02:23:10,589 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 02:23:10,589 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 02:23:10,592 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 02:23:10,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:23:10" (1/3) ... [2022-07-12 02:23:10,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18cc177c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:23:10, skipping insertion in model container [2022-07-12 02:23:10,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:10" (2/3) ... [2022-07-12 02:23:10,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18cc177c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:23:10, skipping insertion in model container [2022-07-12 02:23:10,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:23:10" (3/3) ... [2022-07-12 02:23:10,594 INFO L111 eAbstractionObserver]: Analyzing ICFG addsub_double_exact.c [2022-07-12 02:23:10,603 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 02:23:10,604 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 02:23:10,634 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 02:23:10,638 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@65157622, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@30ecf6f [2022-07-12 02:23:10,639 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 02:23:10,642 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) [2022-07-12 02:23:10,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-12 02:23:10,646 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:23:10,646 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-12 02:23:10,647 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:23:10,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:23:10,651 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2022-07-12 02:23:10,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 02:23:10,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541290357] [2022-07-12 02:23:10,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:23:10,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 02:23:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:23:10,730 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-12 02:23:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-12 02:23:10,766 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-12 02:23:10,768 INFO L271 BasicCegarLoop]: Counterexample is feasible [2022-07-12 02:23:10,769 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 02:23:10,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 02:23:10,774 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-12 02:23:10,776 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 02:23:10,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 02:23:10 BoogieIcfgContainer [2022-07-12 02:23:10,793 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 02:23:10,795 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 02:23:10,795 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 02:23:10,795 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 02:23:10,796 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:23:10" (3/4) ... [2022-07-12 02:23:10,798 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-07-12 02:23:10,798 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 02:23:10,799 INFO L158 Benchmark]: Toolchain (without parser) took 632.19ms. Allocated memory is still 117.4MB. Free memory was 88.3MB in the beginning and 67.9MB in the end (delta: 20.3MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2022-07-12 02:23:10,800 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:23:10,801 INFO L158 Benchmark]: CACSL2BoogieTranslator took 164.12ms. Allocated memory is still 117.4MB. Free memory was 88.0MB in the beginning and 92.3MB in the end (delta: -4.2MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2022-07-12 02:23:10,802 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.74ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 91.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:23:10,802 INFO L158 Benchmark]: Boogie Preprocessor took 17.11ms. Allocated memory is still 117.4MB. Free memory was 90.7MB in the beginning and 89.8MB in the end (delta: 910.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:23:10,806 INFO L158 Benchmark]: RCFGBuilder took 213.26ms. Allocated memory is still 117.4MB. Free memory was 89.8MB in the beginning and 81.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-07-12 02:23:10,807 INFO L158 Benchmark]: TraceAbstraction took 203.90ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 68.2MB in the end (delta: 12.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-07-12 02:23:10,808 INFO L158 Benchmark]: Witness Printer took 3.08ms. Allocated memory is still 117.4MB. Free memory was 68.2MB in the beginning and 67.9MB in the end (delta: 305.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:23:10,814 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 117.4MB. Free memory is still 72.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 164.12ms. Allocated memory is still 117.4MB. Free memory was 88.0MB in the beginning and 92.3MB in the end (delta: -4.2MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.74ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 91.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.11ms. Allocated memory is still 117.4MB. Free memory was 90.7MB in the beginning and 89.8MB in the end (delta: 910.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 213.26ms. Allocated memory is still 117.4MB. Free memory was 89.8MB in the beginning and 81.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 203.90ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 68.2MB in the end (delta: 12.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 3.08ms. Allocated memory is still 117.4MB. Free memory was 68.2MB in the beginning and 67.9MB in the end (delta: 305.3kB). 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: 6]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 16, overapproximation of someBinaryArithmeticDOUBLEoperation at line 13. Possible FailurePath: [L10] double x, y, z, r; [L12] x = 1e8 [L13] y = x + 1 [L14] z = x - 1 [L15] r = y - z [L16] CALL __VERIFIER_assert(r == 2.) [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, 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 [2022-07-12 02:23:10,844 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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-benchs/addsub_double_exact.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 f4d7a62ffde252cff873ff489678769664732fba2c78998e7abea39f2d3f98ac --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 02:23:12,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 02:23:12,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 02:23:12,585 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 02:23:12,586 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 02:23:12,587 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 02:23:12,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 02:23:12,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 02:23:12,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 02:23:12,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 02:23:12,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 02:23:12,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 02:23:12,601 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 02:23:12,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 02:23:12,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 02:23:12,605 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 02:23:12,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 02:23:12,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 02:23:12,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 02:23:12,612 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 02:23:12,613 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 02:23:12,613 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 02:23:12,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 02:23:12,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 02:23:12,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 02:23:12,628 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 02:23:12,628 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 02:23:12,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 02:23:12,629 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 02:23:12,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 02:23:12,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 02:23:12,630 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 02:23:12,631 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 02:23:12,632 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 02:23:12,633 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 02:23:12,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 02:23:12,633 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 02:23:12,634 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 02:23:12,634 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 02:23:12,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 02:23:12,635 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 02:23:12,636 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 02:23:12,640 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-07-12 02:23:12,664 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 02:23:12,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 02:23:12,665 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 02:23:12,665 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 02:23:12,666 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 02:23:12,666 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 02:23:12,666 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 02:23:12,667 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 02:23:12,667 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 02:23:12,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 02:23:12,668 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 02:23:12,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 02:23:12,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 02:23:12,668 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 02:23:12,668 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 02:23:12,669 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 02:23:12,669 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-12 02:23:12,669 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-12 02:23:12,669 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-12 02:23:12,669 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 02:23:12,669 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 02:23:12,670 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 02:23:12,670 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 02:23:12,670 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 02:23:12,670 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 02:23:12,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 02:23:12,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:23:12,671 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 02:23:12,671 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 02:23:12,671 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 02:23:12,671 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-12 02:23:12,671 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-12 02:23:12,672 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 02:23:12,672 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 02:23:12,672 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 02:23:12,672 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-12 02:23:12,672 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f4d7a62ffde252cff873ff489678769664732fba2c78998e7abea39f2d3f98ac [2022-07-12 02:23:12,933 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 02:23:12,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 02:23:12,957 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 02:23:12,958 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 02:23:12,958 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 02:23:12,959 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/addsub_double_exact.c [2022-07-12 02:23:13,030 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/547626cb9/51bed945e33947c7aae77267ccfc054c/FLAG0544b8e26 [2022-07-12 02:23:13,404 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 02:23:13,404 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/addsub_double_exact.c [2022-07-12 02:23:13,408 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/547626cb9/51bed945e33947c7aae77267ccfc054c/FLAG0544b8e26 [2022-07-12 02:23:13,422 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/547626cb9/51bed945e33947c7aae77267ccfc054c [2022-07-12 02:23:13,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 02:23:13,425 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 02:23:13,426 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 02:23:13,427 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 02:23:13,429 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 02:23:13,430 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:23:13" (1/1) ... [2022-07-12 02:23:13,431 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a4f906e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:13, skipping insertion in model container [2022-07-12 02:23:13,431 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 02:23:13" (1/1) ... [2022-07-12 02:23:13,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 02:23:13,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 02:23:13,553 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_double_exact.c[393,406] [2022-07-12 02:23:13,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:23:13,572 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 02:23:13,581 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_double_exact.c[393,406] [2022-07-12 02:23:13,585 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 02:23:13,595 INFO L208 MainTranslator]: Completed translation [2022-07-12 02:23:13,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:13 WrapperNode [2022-07-12 02:23:13,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 02:23:13,597 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 02:23:13,597 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 02:23:13,597 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 02:23:13,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:13" (1/1) ... [2022-07-12 02:23:13,609 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:13" (1/1) ... [2022-07-12 02:23:13,620 INFO L137 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 28 [2022-07-12 02:23:13,620 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 02:23:13,621 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 02:23:13,621 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 02:23:13,621 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 02:23:13,626 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:13" (1/1) ... [2022-07-12 02:23:13,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:13" (1/1) ... [2022-07-12 02:23:13,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:13" (1/1) ... [2022-07-12 02:23:13,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:13" (1/1) ... [2022-07-12 02:23:13,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:13" (1/1) ... [2022-07-12 02:23:13,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:13" (1/1) ... [2022-07-12 02:23:13,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:13" (1/1) ... [2022-07-12 02:23:13,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 02:23:13,654 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 02:23:13,655 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 02:23:13,655 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 02:23:13,656 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:13" (1/1) ... [2022-07-12 02:23:13,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 02:23:13,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 02:23:13,711 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) [2022-07-12 02:23:13,730 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 [2022-07-12 02:23:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 02:23:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 02:23:13,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 02:23:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-12 02:23:13,792 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 02:23:13,794 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 02:23:14,192 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 02:23:14,196 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 02:23:14,196 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 02:23:14,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:23:14 BoogieIcfgContainer [2022-07-12 02:23:14,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 02:23:14,199 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 02:23:14,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 02:23:14,200 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 02:23:14,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 02:23:13" (1/3) ... [2022-07-12 02:23:14,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@485697b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:23:14, skipping insertion in model container [2022-07-12 02:23:14,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 02:23:13" (2/3) ... [2022-07-12 02:23:14,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@485697b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 02:23:14, skipping insertion in model container [2022-07-12 02:23:14,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:23:14" (3/3) ... [2022-07-12 02:23:14,202 INFO L111 eAbstractionObserver]: Analyzing ICFG addsub_double_exact.c [2022-07-12 02:23:14,211 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 02:23:14,211 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 02:23:14,238 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 02:23:14,243 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@6d1b959a, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@705cbe47 [2022-07-12 02:23:14,243 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 02:23:14,246 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) [2022-07-12 02:23:14,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-07-12 02:23:14,249 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 02:23:14,250 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-07-12 02:23:14,250 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 02:23:14,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 02:23:14,253 INFO L85 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2022-07-12 02:23:14,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-12 02:23:14,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1149469673] [2022-07-12 02:23:14,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 02:23:14,262 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-12 02:23:14,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-12 02:23:14,264 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) [2022-07-12 02:23:14,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-12 02:23:14,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 02:23:14,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-12 02:23:14,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-12 02:23:14,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 02:23:14,602 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-12 02:23:14,602 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-12 02:23:14,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1149469673] [2022-07-12 02:23:14,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1149469673] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 02:23:14,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 02:23:14,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-12 02:23:14,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701240598] [2022-07-12 02:23:14,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 02:23:14,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 02:23:14,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-12 02:23:14,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 02:23:14,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 02:23:14,625 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) [2022-07-12 02:23:15,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 02:23:15,110 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2022-07-12 02:23:15,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-12 02:23:15,117 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 [2022-07-12 02:23:15,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 02:23:15,121 INFO L225 Difference]: With dead ends: 13 [2022-07-12 02:23:15,121 INFO L226 Difference]: Without dead ends: 0 [2022-07-12 02:23:15,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-12 02:23:15,132 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2022-07-12 02:23:15,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 5 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-12 02:23:15,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-07-12 02:23:15,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-07-12 02:23:15,147 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) [2022-07-12 02:23:15,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-07-12 02:23:15,148 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2022-07-12 02:23:15,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 02:23:15,148 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-07-12 02:23:15,148 INFO L496 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) [2022-07-12 02:23:15,149 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-07-12 02:23:15,149 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-07-12 02:23:15,150 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-07-12 02:23:15,164 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-07-12 02:23:15,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-12 02:23:15,362 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-07-12 02:23:15,377 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-07-12 02:23:15,377 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-07-12 02:23:15,377 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-07-12 02:23:15,377 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-07-12 02:23:15,378 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2022-07-12 02:23:15,378 INFO L895 garLoopResultBuilder]: At program point L17(lines 8 18) the Hoare annotation is: (and (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (= currentRoundingMode roundNearestTiesToEven)) [2022-07-12 02:23:15,378 INFO L899 garLoopResultBuilder]: For program point L6(line 6) no Hoare annotation was computed. [2022-07-12 02:23:15,378 INFO L899 garLoopResultBuilder]: For program point L6-1(line 6) no Hoare annotation was computed. [2022-07-12 02:23:15,378 INFO L895 garLoopResultBuilder]: At program point L6-3(line 6) the Hoare annotation is: (and (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) (= currentRoundingMode roundNearestTiesToEven)) [2022-07-12 02:23:15,381 INFO L356 BasicCegarLoop]: Path program histogram: [1] [2022-07-12 02:23:15,382 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-07-12 02:23:15,388 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 02:23:15,391 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 02:23:15,392 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 02:23:15,393 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 02:23:15,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.07 02:23:15 BoogieIcfgContainer [2022-07-12 02:23:15,394 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-07-12 02:23:15,395 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-12 02:23:15,395 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-12 02:23:15,395 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-12 02:23:15,396 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 02:23:14" (3/4) ... [2022-07-12 02:23:15,398 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-07-12 02:23:15,407 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-07-12 02:23:15,408 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-07-12 02:23:15,408 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-07-12 02:23:15,408 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-07-12 02:23:15,439 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-12 02:23:15,439 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-12 02:23:15,442 INFO L158 Benchmark]: Toolchain (without parser) took 2015.58ms. Allocated memory is still 65.0MB. Free memory was 44.9MB in the beginning and 35.9MB in the end (delta: 9.0MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2022-07-12 02:23:15,442 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 65.0MB. Free memory was 45.5MB in the beginning and 45.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:23:15,442 INFO L158 Benchmark]: CACSL2BoogieTranslator took 169.88ms. Allocated memory is still 65.0MB. Free memory was 44.7MB in the beginning and 34.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-07-12 02:23:15,443 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.33ms. Allocated memory is still 65.0MB. Free memory was 34.7MB in the beginning and 33.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:23:15,444 INFO L158 Benchmark]: Boogie Preprocessor took 32.64ms. Allocated memory is still 65.0MB. Free memory was 33.2MB in the beginning and 32.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-12 02:23:15,446 INFO L158 Benchmark]: RCFGBuilder took 543.55ms. Allocated memory is still 65.0MB. Free memory was 32.0MB in the beginning and 41.9MB in the end (delta: -9.9MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2022-07-12 02:23:15,447 INFO L158 Benchmark]: TraceAbstraction took 1195.52ms. Allocated memory is still 65.0MB. Free memory was 41.4MB in the beginning and 38.3MB in the end (delta: 3.1MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2022-07-12 02:23:15,447 INFO L158 Benchmark]: Witness Printer took 45.20ms. Allocated memory is still 65.0MB. Free memory was 38.3MB in the beginning and 35.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-12 02:23:15,450 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 65.0MB. Free memory was 45.5MB in the beginning and 45.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 169.88ms. Allocated memory is still 65.0MB. Free memory was 44.7MB in the beginning and 34.7MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.33ms. Allocated memory is still 65.0MB. Free memory was 34.7MB in the beginning and 33.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.64ms. Allocated memory is still 65.0MB. Free memory was 33.2MB in the beginning and 32.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 543.55ms. Allocated memory is still 65.0MB. Free memory was 32.0MB in the beginning and 41.9MB in the end (delta: -9.9MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1195.52ms. Allocated memory is still 65.0MB. Free memory was 41.4MB in the beginning and 38.3MB in the end (delta: 3.1MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. * Witness Printer took 45.20ms. Allocated memory is still 65.0MB. Free memory was 38.3MB in the beginning and 35.9MB 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: 1.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.4s 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, 0.1s 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 [2022-07-12 02:23:15,460 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 02:23:15,461 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 [2022-07-12 02:23:15,463 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2022-07-12 02:23:15,463 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! [2022-07-12 02:23:15,491 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