./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_0920a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 d4bd0cf85a8b4097fbfac5e1603bb0ef2263d21f1b9906b4152c353aa17e726a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 00:47:28,311 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 00:47:28,391 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 00:47:28,398 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 00:47:28,398 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 00:47:28,417 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 00:47:28,418 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 00:47:28,418 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 00:47:28,419 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 00:47:28,419 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 00:47:28,419 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 00:47:28,420 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 00:47:28,420 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 00:47:28,421 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 00:47:28,421 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 00:47:28,422 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 00:47:28,424 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 00:47:28,425 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 00:47:28,425 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 00:47:28,425 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 00:47:28,425 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 00:47:28,426 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 00:47:28,426 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 00:47:28,427 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 00:47:28,427 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 00:47:28,427 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 00:47:28,428 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 00:47:28,431 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 00:47:28,432 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 00:47:28,432 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 00:47:28,432 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 00:47:28,432 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 00:47:28,432 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 00:47:28,433 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 00:47:28,433 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 00:47:28,433 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 00:47:28,433 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 00:47:28,434 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 00:47:28,434 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 00:47:28,434 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 00:47:28,434 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 00:47:28,437 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 00:47:28,437 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4bd0cf85a8b4097fbfac5e1603bb0ef2263d21f1b9906b4152c353aa17e726a [2024-10-11 00:47:28,671 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 00:47:28,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 00:47:28,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 00:47:28,702 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 00:47:28,702 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 00:47:28,703 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2024-10-11 00:47:30,171 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 00:47:30,376 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 00:47:30,377 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2024-10-11 00:47:30,386 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/7b3fdabf6/52055af1a90e40ad97876abc980a657c/FLAG8a1c34be3 [2024-10-11 00:47:30,401 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/7b3fdabf6/52055af1a90e40ad97876abc980a657c [2024-10-11 00:47:30,403 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 00:47:30,404 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 00:47:30,406 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 00:47:30,406 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 00:47:30,412 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 00:47:30,413 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:47:30" (1/1) ... [2024-10-11 00:47:30,415 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c516d4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:30, skipping insertion in model container [2024-10-11 00:47:30,415 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:47:30" (1/1) ... [2024-10-11 00:47:30,443 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 00:47:30,647 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_0920a.c[3541,3554] [2024-10-11 00:47:30,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 00:47:30,678 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 00:47:30,714 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_0920a.c[3541,3554] [2024-10-11 00:47:30,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 00:47:30,753 INFO L204 MainTranslator]: Completed translation [2024-10-11 00:47:30,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:30 WrapperNode [2024-10-11 00:47:30,753 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 00:47:30,754 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 00:47:30,755 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 00:47:30,755 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 00:47:30,761 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:30" (1/1) ... [2024-10-11 00:47:30,769 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:30" (1/1) ... [2024-10-11 00:47:30,793 INFO L138 Inliner]: procedures = 19, calls = 30, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 206 [2024-10-11 00:47:30,794 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 00:47:30,795 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 00:47:30,795 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 00:47:30,795 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 00:47:30,805 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:30" (1/1) ... [2024-10-11 00:47:30,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:30" (1/1) ... [2024-10-11 00:47:30,809 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:30" (1/1) ... [2024-10-11 00:47:30,829 INFO L175 MemorySlicer]: Split 10 memory accesses to 5 slices as follows [2, 2, 2, 2, 2]. 20 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2024-10-11 00:47:30,829 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:30" (1/1) ... [2024-10-11 00:47:30,829 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:30" (1/1) ... [2024-10-11 00:47:30,844 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:30" (1/1) ... [2024-10-11 00:47:30,851 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:30" (1/1) ... [2024-10-11 00:47:30,855 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:30" (1/1) ... [2024-10-11 00:47:30,857 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:30" (1/1) ... [2024-10-11 00:47:30,864 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 00:47:30,866 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 00:47:30,867 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 00:47:30,867 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 00:47:30,868 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:30" (1/1) ... [2024-10-11 00:47:30,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 00:47:30,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 00:47:30,901 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 00:47:30,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 00:47:30,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 00:47:30,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 00:47:30,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 00:47:30,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 00:47:30,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 00:47:30,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-11 00:47:30,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 00:47:30,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2024-10-11 00:47:30,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2024-10-11 00:47:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2024-10-11 00:47:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2024-10-11 00:47:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2024-10-11 00:47:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 00:47:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 00:47:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-11 00:47:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-11 00:47:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-11 00:47:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2024-10-11 00:47:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2024-10-11 00:47:30,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2024-10-11 00:47:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2024-10-11 00:47:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2024-10-11 00:47:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 00:47:30,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 00:47:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 00:47:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 00:47:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 00:47:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-11 00:47:30,945 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-11 00:47:30,946 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 00:47:31,039 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 00:47:31,041 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 00:47:31,306 INFO L? ?]: Removed 40 outVars from TransFormulas that were not future-live. [2024-10-11 00:47:31,306 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 00:47:31,344 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 00:47:31,348 INFO L314 CfgBuilder]: Removed 8 assume(true) statements. [2024-10-11 00:47:31,348 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:47:31 BoogieIcfgContainer [2024-10-11 00:47:31,348 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 00:47:31,350 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 00:47:31,350 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 00:47:31,356 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 00:47:31,357 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:47:30" (1/3) ... [2024-10-11 00:47:31,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@239645d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:47:31, skipping insertion in model container [2024-10-11 00:47:31,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:30" (2/3) ... [2024-10-11 00:47:31,358 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@239645d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:47:31, skipping insertion in model container [2024-10-11 00:47:31,359 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:47:31" (3/3) ... [2024-10-11 00:47:31,360 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920a.c [2024-10-11 00:47:31,377 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 00:47:31,377 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 00:47:31,437 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 00:47:31,443 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;@5bbf8bd9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 00:47:31,444 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 00:47:31,448 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 47 states have (on average 1.6808510638297873) internal successors, (79), 48 states have internal predecessors, (79), 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) [2024-10-11 00:47:31,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-11 00:47:31,454 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:47:31,454 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:47:31,455 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:47:31,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:47:31,461 INFO L85 PathProgramCache]: Analyzing trace with hash 793913577, now seen corresponding path program 1 times [2024-10-11 00:47:31,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 00:47:31,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690393523] [2024-10-11 00:47:31,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:47:31,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 00:47:31,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 00:47:31,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 00:47:31,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 00:47:31,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690393523] [2024-10-11 00:47:31,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690393523] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 00:47:31,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 00:47:31,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 00:47:31,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454505050] [2024-10-11 00:47:31,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 00:47:31,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 00:47:31,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 00:47:31,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 00:47:31,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 00:47:31,710 INFO L87 Difference]: Start difference. First operand has 49 states, 47 states have (on average 1.6808510638297873) internal successors, (79), 48 states have internal predecessors, (79), 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 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:47:31,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 00:47:31,754 INFO L93 Difference]: Finished difference Result 97 states and 157 transitions. [2024-10-11 00:47:31,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 00:47:31,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-10-11 00:47:31,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 00:47:31,766 INFO L225 Difference]: With dead ends: 97 [2024-10-11 00:47:31,767 INFO L226 Difference]: Without dead ends: 46 [2024-10-11 00:47:31,770 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 00:47:31,775 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 00:47:31,776 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 125 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 00:47:31,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-10-11 00:47:31,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-10-11 00:47:31,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 45 states have internal predecessors, (64), 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) [2024-10-11 00:47:31,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 64 transitions. [2024-10-11 00:47:31,814 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 64 transitions. Word has length 9 [2024-10-11 00:47:31,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 00:47:31,815 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 64 transitions. [2024-10-11 00:47:31,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:47:31,815 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 64 transitions. [2024-10-11 00:47:31,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-11 00:47:31,817 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:47:31,817 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:47:31,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 00:47:31,818 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:47:31,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:47:31,819 INFO L85 PathProgramCache]: Analyzing trace with hash 976581384, now seen corresponding path program 1 times [2024-10-11 00:47:31,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 00:47:31,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777810373] [2024-10-11 00:47:31,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:47:31,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 00:47:31,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 00:47:31,911 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 00:47:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 00:47:31,979 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 00:47:31,979 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 00:47:31,981 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 00:47:31,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 00:47:31,987 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-10-11 00:47:32,018 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 00:47:32,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:47:32 BoogieIcfgContainer [2024-10-11 00:47:32,024 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 00:47:32,025 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 00:47:32,025 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 00:47:32,025 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 00:47:32,026 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:47:31" (3/4) ... [2024-10-11 00:47:32,030 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-11 00:47:32,031 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 00:47:32,031 INFO L158 Benchmark]: Toolchain (without parser) took 1627.02ms. Allocated memory is still 167.8MB. Free memory was 109.3MB in the beginning and 78.7MB in the end (delta: 30.7MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2024-10-11 00:47:32,033 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 96.5MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 00:47:32,033 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.24ms. Allocated memory is still 167.8MB. Free memory was 109.3MB in the beginning and 139.4MB in the end (delta: -30.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-11 00:47:32,034 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.61ms. Allocated memory is still 167.8MB. Free memory was 139.4MB in the beginning and 137.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 00:47:32,034 INFO L158 Benchmark]: Boogie Preprocessor took 70.02ms. Allocated memory is still 167.8MB. Free memory was 137.4MB in the beginning and 134.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 00:47:32,036 INFO L158 Benchmark]: RCFGBuilder took 482.57ms. Allocated memory is still 167.8MB. Free memory was 134.1MB in the beginning and 112.2MB in the end (delta: 21.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-11 00:47:32,036 INFO L158 Benchmark]: TraceAbstraction took 674.27ms. Allocated memory is still 167.8MB. Free memory was 111.0MB in the beginning and 78.7MB in the end (delta: 32.3MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-10-11 00:47:32,037 INFO L158 Benchmark]: Witness Printer took 5.74ms. Allocated memory is still 167.8MB. Free memory is still 78.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 00:47:32,038 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 96.5MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.24ms. Allocated memory is still 167.8MB. Free memory was 109.3MB in the beginning and 139.4MB in the end (delta: -30.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.61ms. Allocated memory is still 167.8MB. Free memory was 139.4MB in the beginning and 137.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 70.02ms. Allocated memory is still 167.8MB. Free memory was 137.4MB in the beginning and 134.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 482.57ms. Allocated memory is still 167.8MB. Free memory was 134.1MB in the beginning and 112.2MB in the end (delta: 21.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 674.27ms. Allocated memory is still 167.8MB. Free memory was 111.0MB in the beginning and 78.7MB in the end (delta: 32.3MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 5.74ms. Allocated memory is still 167.8MB. Free memory is still 78.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 142]: 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 113, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L26-L30] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L32] static const float zero_log = 0.0; [L134] float x = __VERIFIER_nondet_float(); [L136] EXPR x < 0 && isfinite_float(x) VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L136] EXPR x < 0 && isfinite_float(x) [L136] CALL, EXPR isfinite_float(x) [L117] __int32_t ix; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=2147483661, zero_log=0] [L119] ieee_float_shape_type gf_u; [L120] gf_u.value = (x) [L121] EXPR gf_u.word [L121] (ix) = gf_u.word [L123] ix &= 0x7fffffff [L124] return (((ix) < 0x7f800000L)); [L136] RET, EXPR isfinite_float(x) [L136] EXPR x < 0 && isfinite_float(x) VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=2147483661, zero_log=0] [L136] COND TRUE (x < 0 && isfinite_float(x)) [L138] CALL, EXPR __ieee754_logf(x) [L35] float hfsq, f, s, z, R, w, t1, t2, dk; [L36] __int32_t k, ix, i, j; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=2147483661, zero_log=0] [L39] ieee_float_shape_type gf_u; [L40] gf_u.value = (x) [L41] EXPR gf_u.word [L41] (ix) = gf_u.word [L44] k = 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ix=-2147483648, k=0, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=2147483661, zero_log=0] [L45] COND TRUE ((ix & 0x7fffffff) == 0) [L46] return -two25_log / zero_log; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, k=0, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=2147483661, zero_log=0] [L138] RET, EXPR __ieee754_logf(x) [L138] float res = __ieee754_logf(x); [L141] CALL, EXPR isnan_float(res) [L113] return x != x; [L141] RET, EXPR isnan_float(res) [L141] COND TRUE !isnan_float(res) [L142] reach_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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, 125 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 61 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 64 mSDtfsCounter, 12 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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 [2024-10-11 00:47:32,068 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 d4bd0cf85a8b4097fbfac5e1603bb0ef2263d21f1b9906b4152c353aa17e726a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 00:47:34,235 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 00:47:34,318 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-10-11 00:47:34,324 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 00:47:34,326 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 00:47:34,364 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 00:47:34,364 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 00:47:34,365 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 00:47:34,365 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 00:47:34,366 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 00:47:34,366 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 00:47:34,367 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 00:47:34,368 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 00:47:34,370 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 00:47:34,370 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 00:47:34,371 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 00:47:34,371 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 00:47:34,371 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 00:47:34,372 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 00:47:34,375 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 00:47:34,375 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 00:47:34,376 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 00:47:34,376 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 00:47:34,376 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-10-11 00:47:34,376 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-11 00:47:34,376 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 00:47:34,377 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-11 00:47:34,377 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 00:47:34,377 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 00:47:34,377 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 00:47:34,377 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 00:47:34,378 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 00:47:34,378 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 00:47:34,378 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 00:47:34,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 00:47:34,378 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 00:47:34,379 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 00:47:34,379 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 00:47:34,379 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-11 00:47:34,381 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-11 00:47:34,381 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 00:47:34,381 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 00:47:34,382 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 00:47:34,382 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 00:47:34,382 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-11 00:47:34,382 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4bd0cf85a8b4097fbfac5e1603bb0ef2263d21f1b9906b4152c353aa17e726a [2024-10-11 00:47:34,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 00:47:34,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 00:47:34,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 00:47:34,734 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 00:47:34,735 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 00:47:34,738 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2024-10-11 00:47:36,157 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 00:47:36,369 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 00:47:36,369 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2024-10-11 00:47:36,378 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/8a5027332/7ae6e96475ff48c8b1f255947dc02fc0/FLAG5db1170f4 [2024-10-11 00:47:36,734 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/8a5027332/7ae6e96475ff48c8b1f255947dc02fc0 [2024-10-11 00:47:36,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 00:47:36,739 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 00:47:36,741 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 00:47:36,742 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 00:47:36,747 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 00:47:36,748 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:47:36" (1/1) ... [2024-10-11 00:47:36,751 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37f7429d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:36, skipping insertion in model container [2024-10-11 00:47:36,752 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:47:36" (1/1) ... [2024-10-11 00:47:36,780 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 00:47:37,037 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_0920a.c[3541,3554] [2024-10-11 00:47:37,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 00:47:37,062 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 00:47:37,125 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_0920a.c[3541,3554] [2024-10-11 00:47:37,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 00:47:37,150 INFO L204 MainTranslator]: Completed translation [2024-10-11 00:47:37,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:37 WrapperNode [2024-10-11 00:47:37,151 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 00:47:37,152 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 00:47:37,152 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 00:47:37,152 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 00:47:37,160 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:37" (1/1) ... [2024-10-11 00:47:37,174 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:37" (1/1) ... [2024-10-11 00:47:37,212 INFO L138 Inliner]: procedures = 22, calls = 30, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 171 [2024-10-11 00:47:37,216 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 00:47:37,217 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 00:47:37,217 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 00:47:37,217 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 00:47:37,229 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:37" (1/1) ... [2024-10-11 00:47:37,229 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:37" (1/1) ... [2024-10-11 00:47:37,238 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:37" (1/1) ... [2024-10-11 00:47:37,259 INFO L175 MemorySlicer]: Split 10 memory accesses to 5 slices as follows [2, 2, 2, 2, 2]. 20 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2024-10-11 00:47:37,263 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:37" (1/1) ... [2024-10-11 00:47:37,264 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:37" (1/1) ... [2024-10-11 00:47:37,281 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:37" (1/1) ... [2024-10-11 00:47:37,289 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:37" (1/1) ... [2024-10-11 00:47:37,293 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:37" (1/1) ... [2024-10-11 00:47:37,299 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:37" (1/1) ... [2024-10-11 00:47:37,307 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 00:47:37,308 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 00:47:37,311 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 00:47:37,311 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 00:47:37,312 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:37" (1/1) ... [2024-10-11 00:47:37,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 00:47:37,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 00:47:37,348 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 00:47:37,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 00:47:37,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 00:47:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-10-11 00:47:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-10-11 00:47:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-10-11 00:47:37,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-10-11 00:47:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-10-11 00:47:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 00:47:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-10-11 00:47:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-10-11 00:47:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-10-11 00:47:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-10-11 00:47:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-10-11 00:47:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-10-11 00:47:37,408 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-10-11 00:47:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-10-11 00:47:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-10-11 00:47:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-10-11 00:47:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 00:47:37,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 00:47:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-10-11 00:47:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-10-11 00:47:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-10-11 00:47:37,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-10-11 00:47:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-10-11 00:47:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-10-11 00:47:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-10-11 00:47:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-10-11 00:47:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-10-11 00:47:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-10-11 00:47:37,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 00:47:37,554 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 00:47:37,557 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 00:48:04,959 INFO L? ?]: Removed 61 outVars from TransFormulas that were not future-live. [2024-10-11 00:48:04,959 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 00:48:04,992 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 00:48:04,996 INFO L314 CfgBuilder]: Removed 8 assume(true) statements. [2024-10-11 00:48:04,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:48:04 BoogieIcfgContainer [2024-10-11 00:48:04,997 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 00:48:04,999 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 00:48:04,999 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 00:48:05,006 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 00:48:05,010 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:47:36" (1/3) ... [2024-10-11 00:48:05,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21d8ce72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:48:05, skipping insertion in model container [2024-10-11 00:48:05,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:47:37" (2/3) ... [2024-10-11 00:48:05,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21d8ce72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:48:05, skipping insertion in model container [2024-10-11 00:48:05,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:48:04" (3/3) ... [2024-10-11 00:48:05,013 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920a.c [2024-10-11 00:48:05,028 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 00:48:05,029 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 00:48:05,088 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 00:48:05,095 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;@2dc714e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 00:48:05,095 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 00:48:05,099 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.7419354838709677) internal successors, (54), 32 states have internal predecessors, (54), 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) [2024-10-11 00:48:05,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-11 00:48:05,105 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:48:05,106 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:48:05,106 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:48:05,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:48:05,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1067907207, now seen corresponding path program 1 times [2024-10-11 00:48:05,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 00:48:05,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1315433151] [2024-10-11 00:48:05,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:48:05,126 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 [2024-10-11 00:48:05,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 00:48:05,129 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/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) [2024-10-11 00:48:05,130 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 00:48:05,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 00:48:05,548 INFO L255 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-10-11 00:48:05,552 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 00:48:05,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 00:48:05,565 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 00:48:05,566 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 00:48:05,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1315433151] [2024-10-11 00:48:05,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1315433151] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 00:48:05,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 00:48:05,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 00:48:05,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413245626] [2024-10-11 00:48:05,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 00:48:05,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 00:48:05,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 00:48:05,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 00:48:05,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 00:48:05,590 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.7419354838709677) internal successors, (54), 32 states have internal predecessors, (54), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:48:05,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 00:48:05,679 INFO L93 Difference]: Finished difference Result 64 states and 105 transitions. [2024-10-11 00:48:05,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 00:48:05,683 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-10-11 00:48:05,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 00:48:05,691 INFO L225 Difference]: With dead ends: 64 [2024-10-11 00:48:05,691 INFO L226 Difference]: Without dead ends: 30 [2024-10-11 00:48:05,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 00:48:05,697 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 00:48:05,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 00:48:05,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-10-11 00:48:05,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-10-11 00:48:05,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.4137931034482758) internal successors, (41), 29 states have internal predecessors, (41), 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) [2024-10-11 00:48:05,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 41 transitions. [2024-10-11 00:48:05,728 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 41 transitions. Word has length 9 [2024-10-11 00:48:05,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 00:48:05,728 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 41 transitions. [2024-10-11 00:48:05,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:48:05,729 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2024-10-11 00:48:05,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-10-11 00:48:05,729 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:48:05,729 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:48:05,746 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 00:48:05,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/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 [2024-10-11 00:48:05,931 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:48:05,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:48:05,932 INFO L85 PathProgramCache]: Analyzing trace with hash -811854216, now seen corresponding path program 1 times [2024-10-11 00:48:05,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 00:48:05,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [817225336] [2024-10-11 00:48:05,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:48:05,933 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 [2024-10-11 00:48:05,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 00:48:05,949 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/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) [2024-10-11 00:48:05,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 00:48:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 00:48:06,349 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 00:48:06,350 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 00:48:06,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 00:48:06,430 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 00:48:06,430 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 00:48:06,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [817225336] [2024-10-11 00:48:06,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [817225336] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 00:48:06,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 00:48:06,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 00:48:06,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216248519] [2024-10-11 00:48:06,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 00:48:06,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 00:48:06,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 00:48:06,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 00:48:06,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 00:48:06,433 INFO L87 Difference]: Start difference. First operand 30 states and 41 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-10-11 00:48:06,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 00:48:06,583 INFO L93 Difference]: Finished difference Result 55 states and 76 transitions. [2024-10-11 00:48:06,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 00:48:06,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2024-10-11 00:48:06,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 00:48:06,585 INFO L225 Difference]: With dead ends: 55 [2024-10-11 00:48:06,585 INFO L226 Difference]: Without dead ends: 30 [2024-10-11 00:48:06,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 00:48:06,586 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 00:48:06,587 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 00:48:06,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-10-11 00:48:06,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-10-11 00:48:06,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 29 states have internal predecessors, (40), 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) [2024-10-11 00:48:06,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2024-10-11 00:48:06,591 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 10 [2024-10-11 00:48:06,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 00:48:06,591 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2024-10-11 00:48:06,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2024-10-11 00:48:06,592 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2024-10-11 00:48:06,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-11 00:48:06,592 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:48:06,592 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:48:06,607 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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)] Forceful destruction successful, exit code 0 [2024-10-11 00:48:06,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-clean/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 [2024-10-11 00:48:06,794 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:48:06,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:48:06,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1634540192, now seen corresponding path program 1 times [2024-10-11 00:48:06,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 00:48:06,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [40799183] [2024-10-11 00:48:06,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:48:06,797 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 [2024-10-11 00:48:06,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 00:48:06,799 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/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) [2024-10-11 00:48:06,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 00:48:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 00:48:07,206 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-11 00:48:07,209 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 00:48:08,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 00:48:08,214 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 00:48:08,214 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 00:48:08,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [40799183] [2024-10-11 00:48:08,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [40799183] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 00:48:08,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 00:48:08,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-11 00:48:08,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373913105] [2024-10-11 00:48:08,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 00:48:08,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 00:48:08,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 00:48:08,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 00:48:08,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-11 00:48:08,219 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:48:09,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 00:48:09,406 INFO L93 Difference]: Finished difference Result 34 states and 43 transitions. [2024-10-11 00:48:09,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 00:48:09,407 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-10-11 00:48:09,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 00:48:09,407 INFO L225 Difference]: With dead ends: 34 [2024-10-11 00:48:09,407 INFO L226 Difference]: Without dead ends: 15 [2024-10-11 00:48:09,408 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 00:48:09,409 INFO L432 NwaCegarLoop]: 6 mSDtfsCounter, 5 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-11 00:48:09,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 24 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-11 00:48:09,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2024-10-11 00:48:09,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2024-10-11 00:48:09,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0) internal successors, (14), 14 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) [2024-10-11 00:48:09,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2024-10-11 00:48:09,412 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 13 [2024-10-11 00:48:09,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 00:48:09,413 INFO L471 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2024-10-11 00:48:09,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 00:48:09,413 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2024-10-11 00:48:09,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-11 00:48:09,413 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 00:48:09,414 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 00:48:09,429 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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)] Forceful destruction successful, exit code 0 [2024-10-11 00:48:09,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-clean/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 [2024-10-11 00:48:09,615 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 00:48:09,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 00:48:09,616 INFO L85 PathProgramCache]: Analyzing trace with hash 867863219, now seen corresponding path program 1 times [2024-10-11 00:48:09,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-11 00:48:09,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2097335341] [2024-10-11 00:48:09,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 00:48:09,616 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 [2024-10-11 00:48:09,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/mathsat [2024-10-11 00:48:09,620 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/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) [2024-10-11 00:48:09,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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 [2024-10-11 00:48:10,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 00:48:10,143 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 00:48:10,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 00:48:11,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 00:48:11,158 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 00:48:11,158 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-11 00:48:11,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2097335341] [2024-10-11 00:48:11,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2097335341] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 00:48:11,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 00:48:11,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 00:48:11,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669186814] [2024-10-11 00:48:11,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 00:48:11,159 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 00:48:11,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-11 00:48:11,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 00:48:11,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 00:48:11,160 INFO L87 Difference]: Start difference. First operand 15 states and 14 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) [2024-10-11 00:48:11,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 00:48:11,907 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2024-10-11 00:48:11,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 00:48:11,907 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 [2024-10-11 00:48:11,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 00:48:11,907 INFO L225 Difference]: With dead ends: 15 [2024-10-11 00:48:11,907 INFO L226 Difference]: Without dead ends: 0 [2024-10-11 00:48:11,908 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-11 00:48:11,909 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-11 00:48:11,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 23 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-11 00:48:11,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-11 00:48:11,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-11 00:48:11,912 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) [2024-10-11 00:48:11,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-11 00:48:11,913 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2024-10-11 00:48:11,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 00:48:11,914 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-11 00:48:11,914 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) [2024-10-11 00:48:11,914 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-11 00:48:11,914 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-11 00:48:11,917 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 00:48:11,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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)] Forceful destruction successful, exit code 0 [2024-10-11 00:48:12,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/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 [2024-10-11 00:48:12,121 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-10-11 00:48:12,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-11 00:48:12,351 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 00:48:12,375 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-10-11 00:48:12,376 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-10-11 00:48:12,376 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-10-11 00:48:12,376 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-11 00:48:12,377 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-11 00:48:12,377 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-10-11 00:48:12,377 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-10-11 00:48:12,377 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-10-11 00:48:12,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:48:12 BoogieIcfgContainer [2024-10-11 00:48:12,378 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 00:48:12,379 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 00:48:12,379 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 00:48:12,379 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 00:48:12,382 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:48:04" (3/4) ... [2024-10-11 00:48:12,387 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-11 00:48:12,403 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2024-10-11 00:48:12,409 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-10-11 00:48:12,410 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-11 00:48:12,410 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-11 00:48:12,545 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 00:48:12,545 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-11 00:48:12,545 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 00:48:12,546 INFO L158 Benchmark]: Toolchain (without parser) took 35807.41ms. Allocated memory was 62.9MB in the beginning and 83.9MB in the end (delta: 21.0MB). Free memory was 39.4MB in the beginning and 53.9MB in the end (delta: -14.5MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2024-10-11 00:48:12,546 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 62.9MB. Free memory was 39.4MB in the beginning and 39.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 00:48:12,549 INFO L158 Benchmark]: CACSL2BoogieTranslator took 410.09ms. Allocated memory was 62.9MB in the beginning and 83.9MB in the end (delta: 21.0MB). Free memory was 39.2MB in the beginning and 62.4MB in the end (delta: -23.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-10-11 00:48:12,550 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.18ms. Allocated memory is still 83.9MB. Free memory was 62.4MB in the beginning and 60.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 00:48:12,550 INFO L158 Benchmark]: Boogie Preprocessor took 90.82ms. Allocated memory is still 83.9MB. Free memory was 60.5MB in the beginning and 56.9MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 00:48:12,550 INFO L158 Benchmark]: RCFGBuilder took 27688.51ms. Allocated memory is still 83.9MB. Free memory was 56.9MB in the beginning and 58.5MB in the end (delta: -1.6MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. [2024-10-11 00:48:12,550 INFO L158 Benchmark]: TraceAbstraction took 7379.57ms. Allocated memory is still 83.9MB. Free memory was 57.5MB in the beginning and 59.5MB in the end (delta: -2.0MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2024-10-11 00:48:12,551 INFO L158 Benchmark]: Witness Printer took 166.55ms. Allocated memory is still 83.9MB. Free memory was 59.5MB in the beginning and 53.9MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-11 00:48:12,552 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 62.9MB. Free memory was 39.4MB in the beginning and 39.3MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 410.09ms. Allocated memory was 62.9MB in the beginning and 83.9MB in the end (delta: 21.0MB). Free memory was 39.2MB in the beginning and 62.4MB in the end (delta: -23.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.18ms. Allocated memory is still 83.9MB. Free memory was 62.4MB in the beginning and 60.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.82ms. Allocated memory is still 83.9MB. Free memory was 60.5MB in the beginning and 56.9MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 27688.51ms. Allocated memory is still 83.9MB. Free memory was 56.9MB in the beginning and 58.5MB in the end (delta: -1.6MB). Peak memory consumption was 21.1MB. Max. memory is 16.1GB. * TraceAbstraction took 7379.57ms. Allocated memory is still 83.9MB. Free memory was 57.5MB in the beginning and 59.5MB in the end (delta: -2.0MB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. * Witness Printer took 166.55ms. Allocated memory is still 83.9MB. Free memory was 59.5MB in the beginning and 53.9MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. 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: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - 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: 142]: 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, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 161 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 68 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 55 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 93 mSDtfsCounter, 55 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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: 0.1s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 42 ConstructedInterpolants, 10 QuantifiedInterpolants, 212 SizeOfPredicates, 5 NumberOfNonLiveVariables, 213 ConjunctsInSsa, 18 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: 54]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: null RESULT: Ultimate proved your program to be correct! [2024-10-11 00:48:12,709 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/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