./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i -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 --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 a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 17:01:25,452 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 17:01:25,519 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 17:01:25,525 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 17:01:25,525 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 17:01:25,552 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 17:01:25,553 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 17:01:25,553 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 17:01:25,554 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 17:01:25,555 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 17:01:25,556 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 17:01:25,556 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 17:01:25,556 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 17:01:25,557 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 17:01:25,557 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 17:01:25,557 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 17:01:25,558 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 17:01:25,558 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 17:01:25,562 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 17:01:25,562 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 17:01:25,562 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 17:01:25,563 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 17:01:25,563 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 17:01:25,563 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 17:01:25,563 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 17:01:25,564 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 17:01:25,564 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 17:01:25,564 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 17:01:25,564 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 17:01:25,565 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 17:01:25,565 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 17:01:25,565 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 17:01:25,565 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 17:01:25,566 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 17:01:25,566 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 17:01:25,566 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 17:01:25,566 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 17:01:25,567 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 17:01:25,567 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 17:01:25,567 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 17:01:25,567 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 17:01:25,569 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 17:01:25,569 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1a8d839de719affcdce7d478fe01c72ef8bd5c3f8508077dd75702521e0650f [2024-10-12 17:01:25,842 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 17:01:25,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 17:01:25,870 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 17:01:25,871 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 17:01:25,871 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 17:01:25,872 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i [2024-10-12 17:01:27,330 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 17:01:27,508 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 17:01:27,508 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i [2024-10-12 17:01:27,519 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21c081128/fee2d040af774bda8c030124fb0bb953/FLAG7db7d4ed8 [2024-10-12 17:01:27,532 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/21c081128/fee2d040af774bda8c030124fb0bb953 [2024-10-12 17:01:27,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 17:01:27,537 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 17:01:27,539 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 17:01:27,540 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 17:01:27,547 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 17:01:27,548 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:01:27" (1/1) ... [2024-10-12 17:01:27,549 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a9a24b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:01:27, skipping insertion in model container [2024-10-12 17:01:27,549 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:01:27" (1/1) ... [2024-10-12 17:01:27,579 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 17:01:27,775 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2024-10-12 17:01:27,788 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2024-10-12 17:01:27,792 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2024-10-12 17:01:27,797 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2024-10-12 17:01:27,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 17:01:27,814 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 17:01:27,844 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i[2558,2571] [2024-10-12 17:01:27,851 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i[2753,2766] [2024-10-12 17:01:27,856 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i[2881,2894] [2024-10-12 17:01:27,858 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float22.i[3073,3086] [2024-10-12 17:01:27,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 17:01:27,883 INFO L204 MainTranslator]: Completed translation [2024-10-12 17:01:27,884 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:01:27 WrapperNode [2024-10-12 17:01:27,885 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 17:01:27,886 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 17:01:27,886 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 17:01:27,886 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 17:01:27,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:01:27" (1/1) ... [2024-10-12 17:01:27,906 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:01:27" (1/1) ... [2024-10-12 17:01:27,930 INFO L138 Inliner]: procedures = 21, calls = 80, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 121 [2024-10-12 17:01:27,933 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 17:01:27,934 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 17:01:27,934 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 17:01:27,935 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 17:01:27,944 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:01:27" (1/1) ... [2024-10-12 17:01:27,948 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:01:27" (1/1) ... [2024-10-12 17:01:27,952 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:01:27" (1/1) ... [2024-10-12 17:01:27,981 INFO L175 MemorySlicer]: Split 41 memory accesses to 9 slices as follows [2, 2, 5, 7, 5, 2, 7, 7, 4]. 17 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0, 0]. The 26 writes are split as follows [0, 1, 4, 3, 4, 1, 5, 5, 3]. [2024-10-12 17:01:27,981 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:01:27" (1/1) ... [2024-10-12 17:01:27,981 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:01:27" (1/1) ... [2024-10-12 17:01:27,999 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:01:27" (1/1) ... [2024-10-12 17:01:28,001 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:01:27" (1/1) ... [2024-10-12 17:01:28,004 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:01:27" (1/1) ... [2024-10-12 17:01:28,006 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:01:27" (1/1) ... [2024-10-12 17:01:28,014 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 17:01:28,015 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 17:01:28,015 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 17:01:28,018 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 17:01:28,019 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:01:27" (1/1) ... [2024-10-12 17:01:28,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 17:01:28,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 17:01:28,066 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 17:01:28,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 17:01:28,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 17:01:28,119 INFO L130 BoogieDeclarations]: Found specification of procedure returnsStructure [2024-10-12 17:01:28,119 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsStructure [2024-10-12 17:01:28,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 17:01:28,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-12 17:01:28,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-12 17:01:28,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-12 17:01:28,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-12 17:01:28,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-12 17:01:28,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-12 17:01:28,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-12 17:01:28,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-12 17:01:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-12 17:01:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-12 17:01:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-12 17:01:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-12 17:01:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-10-12 17:01:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-10-12 17:01:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-10-12 17:01:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-10-12 17:01:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-10-12 17:01:28,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-10-12 17:01:28,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-12 17:01:28,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-12 17:01:28,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-12 17:01:28,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-12 17:01:28,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-12 17:01:28,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-12 17:01:28,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-12 17:01:28,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-12 17:01:28,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-12 17:01:28,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-12 17:01:28,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-12 17:01:28,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-10-12 17:01:28,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-10-12 17:01:28,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-10-12 17:01:28,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-10-12 17:01:28,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-10-12 17:01:28,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-10-12 17:01:28,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-10-12 17:01:28,127 INFO L130 BoogieDeclarations]: Found specification of procedure returnsField [2024-10-12 17:01:28,127 INFO L138 BoogieDeclarations]: Found implementation of procedure returnsField [2024-10-12 17:01:28,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 17:01:28,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 17:01:28,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-12 17:01:28,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-12 17:01:28,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-12 17:01:28,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-12 17:01:28,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-12 17:01:28,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-12 17:01:28,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-12 17:01:28,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-12 17:01:28,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-12 17:01:28,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-12 17:01:28,305 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 17:01:28,307 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 17:01:28,589 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-10-12 17:01:28,589 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 17:01:28,626 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 17:01:28,626 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-12 17:01:28,627 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:01:28 BoogieIcfgContainer [2024-10-12 17:01:28,627 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 17:01:28,629 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 17:01:28,629 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 17:01:28,632 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 17:01:28,633 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 05:01:27" (1/3) ... [2024-10-12 17:01:28,633 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69bb5015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:01:28, skipping insertion in model container [2024-10-12 17:01:28,633 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:01:27" (2/3) ... [2024-10-12 17:01:28,634 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69bb5015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:01:28, skipping insertion in model container [2024-10-12 17:01:28,634 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:01:28" (3/3) ... [2024-10-12 17:01:28,635 INFO L112 eAbstractionObserver]: Analyzing ICFG float22.i [2024-10-12 17:01:28,654 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 17:01:28,655 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-10-12 17:01:28,719 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 17:01:28,727 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@79e41527, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 17:01:28,727 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-12 17:01:28,733 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 22 states have (on average 1.3636363636363635) internal successors, (30), 26 states have internal predecessors, (30), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-10-12 17:01:28,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-10-12 17:01:28,739 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:01:28,740 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:01:28,742 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2024-10-12 17:01:28,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:01:28,749 INFO L85 PathProgramCache]: Analyzing trace with hash -2055473472, now seen corresponding path program 1 times [2024-10-12 17:01:28,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 17:01:28,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931629008] [2024-10-12 17:01:28,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:01:28,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 17:01:28,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 17:01:28,976 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 17:01:29,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 17:01:29,060 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 17:01:29,062 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-12 17:01:29,064 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-10-12 17:01:29,066 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2024-10-12 17:01:29,067 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2024-10-12 17:01:29,067 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2024-10-12 17:01:29,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 17:01:29,072 INFO L407 BasicCegarLoop]: Path program histogram: [1] [2024-10-12 17:01:29,101 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 17:01:29,106 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 05:01:29 BoogieIcfgContainer [2024-10-12 17:01:29,106 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 17:01:29,106 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 17:01:29,106 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 17:01:29,107 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 17:01:29,107 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:01:28" (3/4) ... [2024-10-12 17:01:29,108 INFO L133 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-12 17:01:29,155 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-12 17:01:29,155 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 17:01:29,157 INFO L158 Benchmark]: Toolchain (without parser) took 1619.37ms. Allocated memory is still 161.5MB. Free memory was 113.7MB in the beginning and 84.4MB in the end (delta: 29.2MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2024-10-12 17:01:29,157 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 100.7MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 17:01:29,158 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.84ms. Allocated memory is still 161.5MB. Free memory was 113.0MB in the beginning and 99.7MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-12 17:01:29,158 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.65ms. Allocated memory is still 161.5MB. Free memory was 99.6MB in the beginning and 97.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 17:01:29,159 INFO L158 Benchmark]: Boogie Preprocessor took 79.87ms. Allocated memory is still 161.5MB. Free memory was 97.6MB in the beginning and 94.1MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-12 17:01:29,159 INFO L158 Benchmark]: RCFGBuilder took 612.34ms. Allocated memory is still 161.5MB. Free memory was 94.1MB in the beginning and 111.7MB in the end (delta: -17.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-12 17:01:29,159 INFO L158 Benchmark]: TraceAbstraction took 477.10ms. Allocated memory is still 161.5MB. Free memory was 111.7MB in the beginning and 86.5MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-12 17:01:29,160 INFO L158 Benchmark]: Witness Printer took 49.14ms. Allocated memory is still 161.5MB. Free memory was 86.5MB in the beginning and 84.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 17:01:29,161 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 100.7MB. Free memory is still 68.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.84ms. Allocated memory is still 161.5MB. Free memory was 113.0MB in the beginning and 99.7MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.65ms. Allocated memory is still 161.5MB. Free memory was 99.6MB in the beginning and 97.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.87ms. Allocated memory is still 161.5MB. Free memory was 97.6MB in the beginning and 94.1MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 612.34ms. Allocated memory is still 161.5MB. Free memory was 94.1MB in the beginning and 111.7MB in the end (delta: -17.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 477.10ms. Allocated memory is still 161.5MB. Free memory was 111.7MB in the beginning and 86.5MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 49.14ms. Allocated memory is still 161.5MB. Free memory was 86.5MB in the beginning and 84.4MB in the end (delta: 2.1MB). 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 - CounterExampleResult [Line: 144]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L179] CALL testOne() [L139] ieee754_float f1, f2; VAL [f1={5:0}, f2={6:0}] [L141] CALL, EXPR returnsStructure(0) VAL [\old(index)=0] [L128] ieee754_float c; [L130] c.ieee.negative = index & 0x1 [L131] c.ieee.exponent = 0 [L132] c.ieee.mantissa = 0 [L134] return c; [L134] return c; [L134] return c; [L134] return c; [L134] return c; [L134] return c; [L141] RET, EXPR returnsStructure(0) VAL [f1={5:0}, f2={6:0}] [L141] f1 = returnsStructure(0) [L141] f1 = returnsStructure(0) [L141] f1 = returnsStructure(0) [L141] f1 = returnsStructure(0) [L142] CALL, EXPR returnsStructure(1) VAL [\old(index)=1] [L128] ieee754_float c; [L130] c.ieee.negative = index & 0x1 [L131] c.ieee.exponent = 0 [L132] c.ieee.mantissa = 0 [L134] return c; [L134] return c; [L134] return c; [L134] return c; [L134] return c; [L134] return c; [L142] RET, EXPR returnsStructure(1) VAL [f1={5:0}, f2={6:0}] [L142] f2 = returnsStructure(1) [L142] f2 = returnsStructure(1) [L142] f2 = returnsStructure(1) [L142] f2 = returnsStructure(1) [L144] EXPR f1.ieee.negative [L144] EXPR f2.ieee.negative [L144] COND TRUE !(f1.ieee.negative != f2.ieee.negative) [L144] reach_error() - UnprovableResult [Line: 156]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 161]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 173]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 37 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 2, 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=37occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 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 proved your program to be incorrect! [2024-10-12 17:01:29,187 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE