./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c --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/float-newlib/float_req_bl_0832b.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 --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 eacc9d6782fe15df62304d6f37a239dbaeef8100e947201f1fc1e382f89b5777 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 17:27:37,867 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 17:27:37,925 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 17:27:37,931 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 17:27:37,932 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 17:27:37,962 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 17:27:37,963 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 17:27:37,963 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 17:27:37,964 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 17:27:37,965 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 17:27:37,966 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 17:27:37,966 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 17:27:37,966 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 17:27:37,968 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 17:27:37,968 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 17:27:37,968 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 17:27:37,968 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 17:27:37,969 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 17:27:37,969 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 17:27:37,969 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 17:27:37,969 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 17:27:37,971 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 17:27:37,971 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 17:27:37,972 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 17:27:37,972 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 17:27:37,972 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 17:27:37,972 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 17:27:37,972 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 17:27:37,973 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 17:27:37,973 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 17:27:37,973 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 17:27:37,973 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 17:27:37,973 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 17:27:37,973 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 17:27:37,974 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 17:27:37,974 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 17:27:37,974 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 17:27:37,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 17:27:37,974 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 17:27:37,974 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 17:27:37,975 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 17:27:37,976 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 17:27:37,976 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eacc9d6782fe15df62304d6f37a239dbaeef8100e947201f1fc1e382f89b5777 [2024-10-12 17:27:38,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 17:27:38,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 17:27:38,214 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 17:27:38,215 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 17:27:38,215 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 17:27:38,216 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2024-10-12 17:27:39,708 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 17:27:39,866 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 17:27:39,866 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2024-10-12 17:27:39,872 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d7c00711/99565491739f47bd9bf99058dab7f63d/FLAGdc6927548 [2024-10-12 17:27:40,270 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9d7c00711/99565491739f47bd9bf99058dab7f63d [2024-10-12 17:27:40,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 17:27:40,273 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 17:27:40,278 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 17:27:40,278 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 17:27:40,287 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 17:27:40,288 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:27:40" (1/1) ... [2024-10-12 17:27:40,292 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fec7a77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:40, skipping insertion in model container [2024-10-12 17:27:40,292 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:27:40" (1/1) ... [2024-10-12 17:27:40,319 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 17:27:40,457 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/float-newlib/float_req_bl_0832b.c[3181,3194] [2024-10-12 17:27:40,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 17:27:40,473 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 17:27:40,500 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/float-newlib/float_req_bl_0832b.c[3181,3194] [2024-10-12 17:27:40,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 17:27:40,515 INFO L204 MainTranslator]: Completed translation [2024-10-12 17:27:40,518 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:40 WrapperNode [2024-10-12 17:27:40,518 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 17:27:40,519 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 17:27:40,520 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 17:27:40,520 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 17:27:40,525 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:40" (1/1) ... [2024-10-12 17:27:40,532 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:40" (1/1) ... [2024-10-12 17:27:40,552 INFO L138 Inliner]: procedures = 18, calls = 42, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 163 [2024-10-12 17:27:40,553 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 17:27:40,553 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 17:27:40,553 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 17:27:40,553 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 17:27:40,565 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:40" (1/1) ... [2024-10-12 17:27:40,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:40" (1/1) ... [2024-10-12 17:27:40,567 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:40" (1/1) ... [2024-10-12 17:27:40,590 INFO L175 MemorySlicer]: Split 23 memory accesses to 9 slices as follows [2, 3, 2, 4, 2, 4, 2, 2, 2]. 17 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 2, 0, 2, 0, 2, 0, 0, 0]. The 5 writes are split as follows [0, 0, 1, 0, 1, 0, 1, 1, 1]. [2024-10-12 17:27:40,591 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:40" (1/1) ... [2024-10-12 17:27:40,591 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:40" (1/1) ... [2024-10-12 17:27:40,599 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:40" (1/1) ... [2024-10-12 17:27:40,602 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:40" (1/1) ... [2024-10-12 17:27:40,604 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:40" (1/1) ... [2024-10-12 17:27:40,605 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:40" (1/1) ... [2024-10-12 17:27:40,608 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 17:27:40,609 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 17:27:40,609 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 17:27:40,609 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 17:27:40,610 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:40" (1/1) ... [2024-10-12 17:27:40,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 17:27:40,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 17:27:40,669 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 17:27:40,673 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 17:27:40,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 17:27:40,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 17:27:40,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-12 17:27:40,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-12 17:27:40,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-12 17:27:40,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-12 17:27:40,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-12 17:27:40,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-12 17:27:40,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-12 17:27:40,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-12 17:27:40,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-12 17:27:40,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-12 17:27:40,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-12 17:27:40,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-12 17:27:40,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-12 17:27:40,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-12 17:27:40,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-12 17:27:40,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-12 17:27:40,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-12 17:27:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-12 17:27:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-12 17:27:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-12 17:27:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-12 17:27:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-10-12 17:27:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-10-12 17:27:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2024-10-12 17:27:40,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2024-10-12 17:27:40,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2024-10-12 17:27:40,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2024-10-12 17:27:40,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-12 17:27:40,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-12 17:27:40,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-10-12 17:27:40,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-10-12 17:27:40,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-10-12 17:27:40,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2024-10-12 17:27:40,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2024-10-12 17:27:40,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2024-10-12 17:27:40,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2024-10-12 17:27:40,734 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 17:27:40,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 17:27:40,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-12 17:27:40,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-12 17:27:40,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-12 17:27:40,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-12 17:27:40,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-12 17:27:40,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-12 17:27:40,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-12 17:27:40,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-12 17:27:40,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-12 17:27:40,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2024-10-12 17:27:40,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2024-10-12 17:27:40,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2024-10-12 17:27:40,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2024-10-12 17:27:40,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2024-10-12 17:27:40,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2024-10-12 17:27:40,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2024-10-12 17:27:40,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2024-10-12 17:27:40,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2024-10-12 17:27:40,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-12 17:27:40,844 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 17:27:40,846 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 17:27:41,055 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-10-12 17:27:41,056 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 17:27:41,079 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 17:27:41,079 INFO L314 CfgBuilder]: Removed 10 assume(true) statements. [2024-10-12 17:27:41,080 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:27:41 BoogieIcfgContainer [2024-10-12 17:27:41,080 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 17:27:41,082 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 17:27:41,082 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 17:27:41,085 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 17:27:41,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 05:27:40" (1/3) ... [2024-10-12 17:27:41,085 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b95a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:27:41, skipping insertion in model container [2024-10-12 17:27:41,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:40" (2/3) ... [2024-10-12 17:27:41,087 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70b95a1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:27:41, skipping insertion in model container [2024-10-12 17:27:41,087 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:27:41" (3/3) ... [2024-10-12 17:27:41,089 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b.c [2024-10-12 17:27:41,103 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 17:27:41,103 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 17:27:41,149 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 17:27:41,154 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;@2f1382a9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 17:27:41,154 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 17:27:41,157 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 30 states have (on average 1.7333333333333334) internal successors, (52), 31 states have internal predecessors, (52), 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) [2024-10-12 17:27:41,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-12 17:27:41,162 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:27:41,162 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:27:41,163 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:27:41,167 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:27:41,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1866605462, now seen corresponding path program 1 times [2024-10-12 17:27:41,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 17:27:41,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504123381] [2024-10-12 17:27:41,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:27:41,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 17:27:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:27:41,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 17:27:41,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 17:27:41,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504123381] [2024-10-12 17:27:41,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504123381] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 17:27:41,349 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 17:27:41,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 17:27:41,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722874529] [2024-10-12 17:27:41,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 17:27:41,355 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 17:27:41,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 17:27:41,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 17:27:41,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 17:27:41,375 INFO L87 Difference]: Start difference. First operand has 32 states, 30 states have (on average 1.7333333333333334) internal successors, (52), 31 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-10-12 17:27:41,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 17:27:41,392 INFO L93 Difference]: Finished difference Result 63 states and 103 transitions. [2024-10-12 17:27:41,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 17:27:41,394 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2024-10-12 17:27:41,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 17:27:41,400 INFO L225 Difference]: With dead ends: 63 [2024-10-12 17:27:41,400 INFO L226 Difference]: Without dead ends: 30 [2024-10-12 17:27:41,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 17:27:41,405 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 17:27:41,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 17:27:41,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-10-12 17:27:41,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-10-12 17:27:41,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 29 states have internal predecessors, (39), 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) [2024-10-12 17:27:41,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2024-10-12 17:27:41,428 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 7 [2024-10-12 17:27:41,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 17:27:41,429 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2024-10-12 17:27:41,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-10-12 17:27:41,429 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2024-10-12 17:27:41,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-12 17:27:41,430 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:27:41,430 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:27:41,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 17:27:41,430 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:27:41,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:27:41,431 INFO L85 PathProgramCache]: Analyzing trace with hash 198286351, now seen corresponding path program 1 times [2024-10-12 17:27:41,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 17:27:41,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793924538] [2024-10-12 17:27:41,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:27:41,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 17:27:41,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 17:27:41,472 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-12 17:27:41,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-12 17:27:41,596 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-12 17:27:41,596 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-12 17:27:41,598 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-12 17:27:41,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 17:27:41,605 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-12 17:27:41,620 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 17:27:41,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 05:27:41 BoogieIcfgContainer [2024-10-12 17:27:41,623 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 17:27:41,623 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 17:27:41,623 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 17:27:41,623 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 17:27:41,624 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:27:41" (3/4) ... [2024-10-12 17:27:41,625 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-12 17:27:41,626 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 17:27:41,627 INFO L158 Benchmark]: Toolchain (without parser) took 1353.64ms. Allocated memory was 163.6MB in the beginning and 232.8MB in the end (delta: 69.2MB). Free memory was 91.7MB in the beginning and 193.7MB in the end (delta: -102.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 17:27:41,627 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 163.6MB. Free memory is still 115.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 17:27:41,627 INFO L158 Benchmark]: CACSL2BoogieTranslator took 240.85ms. Allocated memory is still 163.6MB. Free memory was 91.5MB in the beginning and 77.6MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-12 17:27:41,628 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.57ms. Allocated memory is still 163.6MB. Free memory was 77.6MB in the beginning and 75.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 17:27:41,628 INFO L158 Benchmark]: Boogie Preprocessor took 55.32ms. Allocated memory is still 163.6MB. Free memory was 75.6MB in the beginning and 72.1MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-12 17:27:41,629 INFO L158 Benchmark]: RCFGBuilder took 470.93ms. Allocated memory was 163.6MB in the beginning and 232.8MB in the end (delta: 69.2MB). Free memory was 72.1MB in the beginning and 186.3MB in the end (delta: -114.2MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2024-10-12 17:27:41,629 INFO L158 Benchmark]: TraceAbstraction took 540.65ms. Allocated memory is still 232.8MB. Free memory was 185.2MB in the beginning and 194.8MB in the end (delta: -9.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 17:27:41,629 INFO L158 Benchmark]: Witness Printer took 3.13ms. Allocated memory is still 232.8MB. Free memory was 194.8MB in the beginning and 193.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 17:27:41,631 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 163.6MB. Free memory is still 115.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 240.85ms. Allocated memory is still 163.6MB. Free memory was 91.5MB in the beginning and 77.6MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.57ms. Allocated memory is still 163.6MB. Free memory was 77.6MB in the beginning and 75.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.32ms. Allocated memory is still 163.6MB. Free memory was 75.6MB in the beginning and 72.1MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 470.93ms. Allocated memory was 163.6MB in the beginning and 232.8MB in the end (delta: 69.2MB). Free memory was 72.1MB in the beginning and 186.3MB in the end (delta: -114.2MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * TraceAbstraction took 540.65ms. Allocated memory is still 232.8MB. Free memory was 185.2MB in the beginning and 194.8MB in the end (delta: -9.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.13ms. Allocated memory is still 232.8MB. Free memory was 194.8MB in the beginning and 193.7MB in the end (delta: 1.1MB). 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 - UnprovableResult [Line: 124]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 123, overapproximation of someUnaryDOUBLEoperation at line 21, overapproximation of someUnaryFLOAToperation at line 119, overapproximation of someBinaryArithmeticFLOAToperation at line 52. Possible FailurePath: [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L119] float x = -0.0f; [L120] CALL, EXPR __ieee754_expf(x) [L39] float y, hi, lo, c, t; [L40] __int32_t k = 0, xsb, sx; [L41] __uint32_t hx; VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L44] ieee_float_shape_type gf_u; [L45] gf_u.value = (x) [L46] EXPR gf_u.word [L46] (sx) = gf_u.word [L48] xsb = (sx >> 31) & 1 [L49] hx = sx & 0x7fffffff VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, hx=2147483647, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, sx=-1, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000009, xsb=1] [L51] COND TRUE ((hx) > 0x7f800000L) [L52] return x + x; VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, k=0, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, sx=-1, twom100_exp=39443045261/50000000000000000000000000000000000000000, x=1000000000000000000000000000009, xsb=1] [L120] RET, EXPR __ieee754_expf(x) [L120] float res = __ieee754_expf(x); [L123] COND TRUE res != 1.0f VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L124] reach_error() VAL [P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, halF_exp={4:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={5:0}, ln2LO_exp={6:0}, one_exp=1, twom100_exp=39443045261/50000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 39 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-12 17:27:41,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /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/float-newlib/float_req_bl_0832b.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 --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 eacc9d6782fe15df62304d6f37a239dbaeef8100e947201f1fc1e382f89b5777 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 17:27:43,750 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 17:27:43,816 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-12 17:27:43,822 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 17:27:43,823 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 17:27:43,853 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 17:27:43,854 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 17:27:43,854 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 17:27:43,855 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 17:27:43,856 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 17:27:43,856 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 17:27:43,856 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 17:27:43,857 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 17:27:43,858 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 17:27:43,859 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 17:27:43,859 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 17:27:43,859 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 17:27:43,860 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 17:27:43,860 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 17:27:43,860 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 17:27:43,860 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 17:27:43,864 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 17:27:43,864 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 17:27:43,864 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-12 17:27:43,864 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-12 17:27:43,864 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 17:27:43,864 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-12 17:27:43,865 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 17:27:43,865 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 17:27:43,865 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 17:27:43,865 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 17:27:43,866 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 17:27:43,866 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 17:27:43,866 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 17:27:43,866 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 17:27:43,866 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 17:27:43,866 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 17:27:43,867 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 17:27:43,867 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-12 17:27:43,867 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-12 17:27:43,867 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 17:27:43,868 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 17:27:43,869 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 17:27:43,869 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 17:27:43,869 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-12 17:27:43,869 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eacc9d6782fe15df62304d6f37a239dbaeef8100e947201f1fc1e382f89b5777 [2024-10-12 17:27:44,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 17:27:44,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 17:27:44,175 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 17:27:44,176 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 17:27:44,177 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 17:27:44,179 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2024-10-12 17:27:45,752 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 17:27:45,921 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 17:27:45,922 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0832b.c [2024-10-12 17:27:45,930 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd796d49f/0ba82d914c7b4340bca30d998edd4514/FLAG90ccd202f [2024-10-12 17:27:45,944 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd796d49f/0ba82d914c7b4340bca30d998edd4514 [2024-10-12 17:27:45,947 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 17:27:45,948 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 17:27:45,949 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 17:27:45,949 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 17:27:45,953 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 17:27:45,954 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:27:45" (1/1) ... [2024-10-12 17:27:45,955 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22fd8453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:45, skipping insertion in model container [2024-10-12 17:27:45,955 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 05:27:45" (1/1) ... [2024-10-12 17:27:45,995 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 17:27:46,192 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/float-newlib/float_req_bl_0832b.c[3181,3194] [2024-10-12 17:27:46,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 17:27:46,211 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 17:27:46,247 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/float-newlib/float_req_bl_0832b.c[3181,3194] [2024-10-12 17:27:46,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 17:27:46,276 INFO L204 MainTranslator]: Completed translation [2024-10-12 17:27:46,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:46 WrapperNode [2024-10-12 17:27:46,277 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 17:27:46,278 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 17:27:46,279 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 17:27:46,279 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 17:27:46,285 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:46" (1/1) ... [2024-10-12 17:27:46,302 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:46" (1/1) ... [2024-10-12 17:27:46,334 INFO L138 Inliner]: procedures = 21, calls = 42, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 164 [2024-10-12 17:27:46,336 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 17:27:46,337 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 17:27:46,337 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 17:27:46,337 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 17:27:46,348 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:46" (1/1) ... [2024-10-12 17:27:46,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:46" (1/1) ... [2024-10-12 17:27:46,352 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:46" (1/1) ... [2024-10-12 17:27:46,377 INFO L175 MemorySlicer]: Split 23 memory accesses to 9 slices as follows [2, 2, 2, 3, 4, 4, 2, 2, 2]. 17 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 0, 0, 2, 2, 2, 0, 0, 0]. The 5 writes are split as follows [0, 1, 1, 0, 0, 0, 1, 1, 1]. [2024-10-12 17:27:46,377 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:46" (1/1) ... [2024-10-12 17:27:46,378 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:46" (1/1) ... [2024-10-12 17:27:46,401 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:46" (1/1) ... [2024-10-12 17:27:46,408 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:46" (1/1) ... [2024-10-12 17:27:46,415 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:46" (1/1) ... [2024-10-12 17:27:46,417 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:46" (1/1) ... [2024-10-12 17:27:46,426 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 17:27:46,429 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 17:27:46,429 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 17:27:46,430 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 17:27:46,430 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:46" (1/1) ... [2024-10-12 17:27:46,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 17:27:46,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 17:27:46,470 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 17:27:46,475 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 17:27:46,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 17:27:46,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-10-12 17:27:46,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-10-12 17:27:46,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-10-12 17:27:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-10-12 17:27:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-10-12 17:27:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-10-12 17:27:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2024-10-12 17:27:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2024-10-12 17:27:46,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8 [2024-10-12 17:27:46,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-12 17:27:46,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-12 17:27:46,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-12 17:27:46,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-10-12 17:27:46,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-10-12 17:27:46,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-10-12 17:27:46,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-10-12 17:27:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-10-12 17:27:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-10-12 17:27:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-12 17:27:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-10-12 17:27:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-10-12 17:27:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-10-12 17:27:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-10-12 17:27:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-10-12 17:27:46,519 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-10-12 17:27:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-10-12 17:27:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-10-12 17:27:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-10-12 17:27:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-12 17:27:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-12 17:27:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-12 17:27:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-10-12 17:27:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-10-12 17:27:46,520 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-10-12 17:27:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-10-12 17:27:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-10-12 17:27:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-10-12 17:27:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 17:27:46,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 17:27:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-10-12 17:27:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-10-12 17:27:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-10-12 17:27:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-10-12 17:27:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-10-12 17:27:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-10-12 17:27:46,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-10-12 17:27:46,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-10-12 17:27:46,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-10-12 17:27:46,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-12 17:27:46,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-12 17:27:46,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-12 17:27:46,533 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-10-12 17:27:46,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-10-12 17:27:46,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-10-12 17:27:46,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-10-12 17:27:46,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-10-12 17:27:46,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-10-12 17:27:46,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-12 17:27:46,659 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 17:27:46,661 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 17:28:01,395 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2024-10-12 17:28:01,396 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 17:28:01,417 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 17:28:01,418 INFO L314 CfgBuilder]: Removed 10 assume(true) statements. [2024-10-12 17:28:01,418 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:28:01 BoogieIcfgContainer [2024-10-12 17:28:01,419 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 17:28:01,420 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 17:28:01,421 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 17:28:01,423 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 17:28:01,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 05:27:45" (1/3) ... [2024-10-12 17:28:01,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1798ab07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:28:01, skipping insertion in model container [2024-10-12 17:28:01,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 05:27:46" (2/3) ... [2024-10-12 17:28:01,425 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1798ab07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 05:28:01, skipping insertion in model container [2024-10-12 17:28:01,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:28:01" (3/3) ... [2024-10-12 17:28:01,426 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832b.c [2024-10-12 17:28:01,440 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 17:28:01,440 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 17:28:01,507 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 17:28:01,513 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;@38b31f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 17:28:01,513 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 17:28:01,521 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 30 states have (on average 1.7333333333333334) internal successors, (52), 31 states have internal predecessors, (52), 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) [2024-10-12 17:28:01,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-10-12 17:28:01,526 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:28:01,527 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:28:01,527 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:28:01,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:28:01,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1866605462, now seen corresponding path program 1 times [2024-10-12 17:28:01,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 17:28:01,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [692188933] [2024-10-12 17:28:01,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:28:01,542 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 17:28:01,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 17:28:01,547 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-12 17:28:01,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-10-12 17:28:01,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:28:01,953 INFO L255 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-12 17:28:01,959 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 17:28:01,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 17:28:01,975 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 17:28:01,976 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-12 17:28:01,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [692188933] [2024-10-12 17:28:01,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [692188933] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 17:28:01,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 17:28:01,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 17:28:01,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467132067] [2024-10-12 17:28:01,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 17:28:01,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 17:28:01,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-12 17:28:01,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 17:28:01,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 17:28:02,000 INFO L87 Difference]: Start difference. First operand has 32 states, 30 states have (on average 1.7333333333333334) internal successors, (52), 31 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-10-12 17:28:02,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 17:28:02,034 INFO L93 Difference]: Finished difference Result 63 states and 103 transitions. [2024-10-12 17:28:02,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 17:28:02,036 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2024-10-12 17:28:02,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 17:28:02,043 INFO L225 Difference]: With dead ends: 63 [2024-10-12 17:28:02,043 INFO L226 Difference]: Without dead ends: 30 [2024-10-12 17:28:02,045 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 17:28:02,047 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 17:28:02,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 17:28:02,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-10-12 17:28:02,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-10-12 17:28:02,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 29 states have internal predecessors, (39), 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) [2024-10-12 17:28:02,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 39 transitions. [2024-10-12 17:28:02,084 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 39 transitions. Word has length 7 [2024-10-12 17:28:02,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 17:28:02,085 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 39 transitions. [2024-10-12 17:28:02,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2024-10-12 17:28:02,085 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 39 transitions. [2024-10-12 17:28:02,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-10-12 17:28:02,085 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:28:02,085 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:28:02,098 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-10-12 17:28:02,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 17:28:02,287 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:28:02,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:28:02,288 INFO L85 PathProgramCache]: Analyzing trace with hash 198286351, now seen corresponding path program 1 times [2024-10-12 17:28:02,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 17:28:02,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1387493540] [2024-10-12 17:28:02,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:28:02,289 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 17:28:02,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 17:28:02,292 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-12 17:28:02,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-12 17:28:02,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:28:02,643 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-12 17:28:02,651 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 17:28:02,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-10-12 17:28:02,786 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-10-12 17:28:03,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 17:28:03,087 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 17:28:03,087 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-12 17:28:03,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1387493540] [2024-10-12 17:28:03,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1387493540] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 17:28:03,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 17:28:03,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 17:28:03,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758675219] [2024-10-12 17:28:03,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 17:28:03,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 17:28:03,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-12 17:28:03,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 17:28:03,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 17:28:03,089 INFO L87 Difference]: Start difference. First operand 30 states and 39 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-10-12 17:28:07,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.92s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-12 17:28:11,798 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.78s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-12 17:28:14,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.61s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-12 17:28:15,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 17:28:15,080 INFO L93 Difference]: Finished difference Result 47 states and 57 transitions. [2024-10-12 17:28:15,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-12 17:28:15,126 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2024-10-12 17:28:15,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 17:28:15,127 INFO L225 Difference]: With dead ends: 47 [2024-10-12 17:28:15,127 INFO L226 Difference]: Without dead ends: 28 [2024-10-12 17:28:15,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-12 17:28:15,129 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 20 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2024-10-12 17:28:15,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 59 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 11.8s Time] [2024-10-12 17:28:15,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-10-12 17:28:15,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-10-12 17:28:15,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 27 states have internal predecessors, (30), 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) [2024-10-12 17:28:15,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2024-10-12 17:28:15,140 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 8 [2024-10-12 17:28:15,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 17:28:15,140 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2024-10-12 17:28:15,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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) [2024-10-12 17:28:15,140 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2024-10-12 17:28:15,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-12 17:28:15,141 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:28:15,141 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:28:15,155 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-12 17:28:15,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 17:28:15,341 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:28:15,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:28:15,342 INFO L85 PathProgramCache]: Analyzing trace with hash -686163911, now seen corresponding path program 1 times [2024-10-12 17:28:15,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 17:28:15,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [24789144] [2024-10-12 17:28:15,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:28:15,342 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 17:28:15,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 17:28:15,345 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-12 17:28:15,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-12 17:28:15,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:28:15,727 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-12 17:28:15,728 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 17:28:16,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 17:28:16,572 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 17:28:16,572 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-12 17:28:16,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [24789144] [2024-10-12 17:28:16,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [24789144] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 17:28:16,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 17:28:16,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 17:28:16,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121932395] [2024-10-12 17:28:16,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 17:28:16,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 17:28:16,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-12 17:28:16,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 17:28:16,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 17:28:16,574 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:28:20,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-12 17:28:22,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-12 17:28:26,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-12 17:28:29,483 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.16s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-12 17:28:31,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-12 17:28:33,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-12 17:28:34,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 17:28:34,830 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2024-10-12 17:28:34,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 17:28:34,839 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-10-12 17:28:34,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 17:28:34,841 INFO L225 Difference]: With dead ends: 32 [2024-10-12 17:28:34,841 INFO L226 Difference]: Without dead ends: 28 [2024-10-12 17:28:34,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 17:28:34,842 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.2s IncrementalHoareTripleChecker+Time [2024-10-12 17:28:34,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 73 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 2 Unknown, 0 Unchecked, 18.2s Time] [2024-10-12 17:28:34,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-10-12 17:28:34,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-10-12 17:28:34,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 27 states have internal predecessors, (29), 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) [2024-10-12 17:28:34,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2024-10-12 17:28:34,848 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 14 [2024-10-12 17:28:34,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 17:28:34,848 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2024-10-12 17:28:34,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:28:34,848 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2024-10-12 17:28:34,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-12 17:28:34,849 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 17:28:34,849 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 17:28:34,865 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-10-12 17:28:35,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 17:28:35,050 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 17:28:35,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 17:28:35,051 INFO L85 PathProgramCache]: Analyzing trace with hash 2021504756, now seen corresponding path program 1 times [2024-10-12 17:28:35,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-12 17:28:35,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1741069892] [2024-10-12 17:28:35,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 17:28:35,051 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 17:28:35,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-12 17:28:35,057 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-12 17:28:35,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-12 17:28:35,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 17:28:35,991 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-12 17:28:35,992 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 17:28:36,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 17:28:36,934 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 17:28:36,934 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-12 17:28:36,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1741069892] [2024-10-12 17:28:36,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1741069892] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 17:28:36,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 17:28:36,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 17:28:36,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197290243] [2024-10-12 17:28:36,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 17:28:36,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 17:28:36,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-12 17:28:36,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 17:28:36,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 17:28:36,935 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:28:36,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 17:28:36,966 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2024-10-12 17:28:36,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 17:28:36,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-10-12 17:28:36,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 17:28:36,968 INFO L225 Difference]: With dead ends: 28 [2024-10-12 17:28:36,968 INFO L226 Difference]: Without dead ends: 0 [2024-10-12 17:28:36,969 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 17:28:36,969 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 17:28:36,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 17:28:36,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-12 17:28:36,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-12 17:28:36,970 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) [2024-10-12 17:28:36,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-12 17:28:36,971 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2024-10-12 17:28:36,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 17:28:36,971 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 17:28:36,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 17:28:36,971 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-12 17:28:36,971 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-12 17:28:36,974 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-12 17:28:37,015 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-10-12 17:28:37,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-12 17:28:37,178 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-12 17:28:37,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-12 17:28:37,336 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 17:28:37,347 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-10-12 17:28:37,348 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-10-12 17:28:37,348 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2024-10-12 17:28:37,348 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-10-12 17:28:37,348 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-10-12 17:28:37,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 05:28:37 BoogieIcfgContainer [2024-10-12 17:28:37,349 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 17:28:37,350 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 17:28:37,350 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 17:28:37,350 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 17:28:37,351 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 05:28:01" (3/4) ... [2024-10-12 17:28:37,352 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-12 17:28:37,373 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2024-10-12 17:28:37,375 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-10-12 17:28:37,375 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-12 17:28:37,376 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-12 17:28:37,482 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-12 17:28:37,483 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-12 17:28:37,483 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 17:28:37,483 INFO L158 Benchmark]: Toolchain (without parser) took 51535.51ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 24.4MB in the beginning and 46.4MB in the end (delta: -22.0MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2024-10-12 17:28:37,485 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 56.6MB. Free memory was 33.5MB in the beginning and 33.4MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 17:28:37,485 INFO L158 Benchmark]: CACSL2BoogieTranslator took 328.72ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 24.2MB in the beginning and 42.3MB in the end (delta: -18.1MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2024-10-12 17:28:37,486 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.77ms. Allocated memory is still 75.5MB. Free memory was 42.3MB in the beginning and 40.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 17:28:37,486 INFO L158 Benchmark]: Boogie Preprocessor took 91.83ms. Allocated memory is still 75.5MB. Free memory was 40.4MB in the beginning and 36.5MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-12 17:28:37,486 INFO L158 Benchmark]: RCFGBuilder took 14989.40ms. Allocated memory is still 75.5MB. Free memory was 36.2MB in the beginning and 34.2MB in the end (delta: 2.0MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. [2024-10-12 17:28:37,486 INFO L158 Benchmark]: TraceAbstraction took 35929.29ms. Allocated memory is still 75.5MB. Free memory was 33.5MB in the beginning and 24.6MB in the end (delta: 8.8MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. [2024-10-12 17:28:37,486 INFO L158 Benchmark]: Witness Printer took 132.99ms. Allocated memory is still 75.5MB. Free memory was 24.6MB in the beginning and 46.4MB in the end (delta: -21.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 17:28:37,488 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 56.6MB. Free memory was 33.5MB in the beginning and 33.4MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 328.72ms. Allocated memory was 56.6MB in the beginning and 75.5MB in the end (delta: 18.9MB). Free memory was 24.2MB in the beginning and 42.3MB in the end (delta: -18.1MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.77ms. Allocated memory is still 75.5MB. Free memory was 42.3MB in the beginning and 40.4MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 91.83ms. Allocated memory is still 75.5MB. Free memory was 40.4MB in the beginning and 36.5MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 14989.40ms. Allocated memory is still 75.5MB. Free memory was 36.2MB in the beginning and 34.2MB in the end (delta: 2.0MB). Peak memory consumption was 8.9MB. Max. memory is 16.1GB. * TraceAbstraction took 35929.29ms. Allocated memory is still 75.5MB. Free memory was 33.5MB in the beginning and 24.6MB in the end (delta: 8.8MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB. * Witness Printer took 132.99ms. Allocated memory is still 75.5MB. Free memory was 24.6MB in the beginning and 46.4MB in the end (delta: -21.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~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: 124]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 35.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 30.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 30.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 179 SdHoareTripleChecker+Invalid, 29.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 94 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 73 IncrementalHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 85 mSDtfsCounter, 73 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.8s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 41 ConstructedInterpolants, 1 QuantifiedInterpolants, 456 SizeOfPredicates, 9 NumberOfNonLiveVariables, 251 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 91]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-10-12 17:28:37,710 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2024-10-12 17:28:37,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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