./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1251.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1251.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 de540e539c3db6027c1fdb04fcc6cae02aafb8aa58950d31054b2b0b8391af6d --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 18:49:05,775 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 18:49:05,809 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 18:49:05,812 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 18:49:05,813 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 18:49:05,826 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 18:49:05,827 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 18:49:05,827 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 18:49:05,827 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 18:49:05,827 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 18:49:05,827 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 18:49:05,827 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 18:49:05,827 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 18:49:05,828 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 18:49:05,828 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 18:49:05,828 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 18:49:05,828 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 18:49:05,828 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 18:49:05,828 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 18:49:05,828 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 18:49:05,828 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 18:49:05,828 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 18:49:05,828 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 18:49:05,828 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 18:49:05,828 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 18:49:05,828 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 18:49:05,828 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 18:49:05,828 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 18:49:05,828 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 18:49:05,828 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 18:49:05,829 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 18:49:05,829 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 18:49:05,829 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:49:05,829 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 18:49:05,829 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 18:49:05,829 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 18:49:05,829 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 18:49:05,829 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 18:49:05,829 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 18:49:05,829 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 18:49:05,829 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 18:49:05,829 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 18:49:05,829 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 18:49:05,829 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> de540e539c3db6027c1fdb04fcc6cae02aafb8aa58950d31054b2b0b8391af6d [2025-02-07 18:49:06,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 18:49:06,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 18:49:06,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 18:49:06,048 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 18:49:06,048 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 18:49:06,049 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1251.c [2025-02-07 18:49:07,154 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ea38d6ad3/505c190d7ee5480e82f563bbbb8c4785/FLAGd5d008448 [2025-02-07 18:49:07,426 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 18:49:07,432 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1251.c [2025-02-07 18:49:07,444 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ea38d6ad3/505c190d7ee5480e82f563bbbb8c4785/FLAGd5d008448 [2025-02-07 18:49:07,745 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ea38d6ad3/505c190d7ee5480e82f563bbbb8c4785 [2025-02-07 18:49:07,746 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 18:49:07,747 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 18:49:07,748 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 18:49:07,749 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 18:49:07,752 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 18:49:07,752 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:49:07" (1/1) ... [2025-02-07 18:49:07,754 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@608424ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:07, skipping insertion in model container [2025-02-07 18:49:07,754 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:49:07" (1/1) ... [2025-02-07 18:49:07,763 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 18:49:07,891 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[1980,1993] [2025-02-07 18:49:07,894 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[2139,2152] [2025-02-07 18:49:07,896 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:49:07,903 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 18:49:07,918 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[1980,1993] [2025-02-07 18:49:07,923 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[2139,2152] [2025-02-07 18:49:07,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:49:07,942 INFO L204 MainTranslator]: Completed translation [2025-02-07 18:49:07,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:07 WrapperNode [2025-02-07 18:49:07,943 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 18:49:07,943 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 18:49:07,944 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 18:49:07,944 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 18:49:07,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:07" (1/1) ... [2025-02-07 18:49:07,955 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:07" (1/1) ... [2025-02-07 18:49:07,968 INFO L138 Inliner]: procedures = 18, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 105 [2025-02-07 18:49:07,968 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 18:49:07,969 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 18:49:07,969 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 18:49:07,969 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 18:49:07,975 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:07" (1/1) ... [2025-02-07 18:49:07,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:07" (1/1) ... [2025-02-07 18:49:07,981 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:07" (1/1) ... [2025-02-07 18:49:07,995 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [2, 2]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2025-02-07 18:49:07,996 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:07" (1/1) ... [2025-02-07 18:49:07,996 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:07" (1/1) ... [2025-02-07 18:49:08,002 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:07" (1/1) ... [2025-02-07 18:49:08,002 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:07" (1/1) ... [2025-02-07 18:49:08,003 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:07" (1/1) ... [2025-02-07 18:49:08,003 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:07" (1/1) ... [2025-02-07 18:49:08,004 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 18:49:08,009 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 18:49:08,009 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 18:49:08,009 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 18:49:08,010 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:07" (1/1) ... [2025-02-07 18:49:08,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:49:08,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 18:49:08,040 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-07 18:49:08,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-07 18:49:08,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 18:49:08,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 18:49:08,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-07 18:49:08,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-07 18:49:08,070 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2025-02-07 18:49:08,070 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2025-02-07 18:49:08,071 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2025-02-07 18:49:08,071 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2025-02-07 18:49:08,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-02-07 18:49:08,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-02-07 18:49:08,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 18:49:08,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 18:49:08,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-07 18:49:08,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-07 18:49:08,071 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-07 18:49:08,121 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 18:49:08,122 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 18:49:08,225 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L81: assume main_#t~short22#1 && ~someBinaryFLOATComparisonOperation(main_~res~0#1, main_~x~0#1);havoc main_#t~ret20#1;havoc main_#t~ret21#1;havoc main_#t~short22#1; [2025-02-07 18:49:08,225 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L81: assume !(main_#t~short22#1 && ~someBinaryFLOATComparisonOperation(main_~res~0#1, main_~x~0#1));havoc main_#t~ret20#1;havoc main_#t~ret21#1;havoc main_#t~short22#1;havoc main_~res~0#1; [2025-02-07 18:49:08,226 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L81-1: assume -2147483648 <= main_#t~ret21#1 && main_#t~ret21#1 <= 2147483647;main_#t~short22#1 := 0 != main_#t~ret21#1; [2025-02-07 18:49:08,226 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L81-2: SUMMARY for call main_#t~ret21#1 := isnan_float(main_~y~0#1); srcloc: null [2025-02-07 18:49:08,226 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L81-3: assume main_#t~short22#1; [2025-02-07 18:49:08,226 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L81-3: assume !main_#t~short22#1; [2025-02-07 18:49:08,226 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L81-4: assume -2147483648 <= main_#t~ret20#1 && main_#t~ret20#1 <= 2147483647;main_#t~short22#1 := 0 == main_#t~ret20#1; [2025-02-07 18:49:08,226 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L81-5: SUMMARY for call main_#t~ret20#1 := isnan_float(main_~x~0#1); srcloc: null [2025-02-07 18:49:08,226 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L75: assume main_#t~short19#1 && ~someBinaryFLOATComparisonOperation(main_~res~0#1, main_~y~0#1);havoc main_#t~ret17#1;havoc main_#t~ret18#1;havoc main_#t~short19#1; [2025-02-07 18:49:08,226 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L75: assume !(main_#t~short19#1 && ~someBinaryFLOATComparisonOperation(main_~res~0#1, main_~y~0#1));havoc main_#t~ret17#1;havoc main_#t~ret18#1;havoc main_#t~short19#1; [2025-02-07 18:49:08,226 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L75-1: assume -2147483648 <= main_#t~ret18#1 && main_#t~ret18#1 <= 2147483647;main_#t~short19#1 := 0 == main_#t~ret18#1; [2025-02-07 18:49:08,227 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L75-2: SUMMARY for call main_#t~ret18#1 := isnan_float(main_~y~0#1); srcloc: null [2025-02-07 18:49:08,227 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L75-3: assume main_#t~short19#1; [2025-02-07 18:49:08,227 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L75-3: assume !main_#t~short19#1; [2025-02-07 18:49:08,227 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L75-4: assume -2147483648 <= main_#t~ret17#1 && main_#t~ret17#1 <= 2147483647;main_#t~short19#1 := 0 != main_#t~ret17#1; [2025-02-07 18:49:08,227 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L75-5: SUMMARY for call main_#t~ret17#1 := isnan_float(main_~x~0#1); srcloc: null [2025-02-07 18:49:08,227 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L82: assume false;main_#res#1 := 1; [2025-02-07 18:49:08,227 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L82: assume !false; [2025-02-07 18:49:08,227 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L76: assume false;main_#res#1 := 1; [2025-02-07 18:49:08,227 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L76: assume !false; [2025-02-07 18:49:08,227 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L72: main_#t~ret16#1 := fmax_float_#res#1;havoc fmax_float_#t~ret5#1, fmax_float_#t~ret6#1, fmax_float_~x#1, fmax_float_~y#1;havoc fmax_float_#in~x#1, fmax_float_#in~y#1;assume { :end_inline_fmax_float } true;main_~res~0#1 := main_#t~ret16#1;havoc main_#t~ret16#1; [2025-02-07 18:49:08,286 INFO L? ?]: Removed 29 outVars from TransFormulas that were not future-live. [2025-02-07 18:49:08,286 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 18:49:08,297 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 18:49:08,297 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 18:49:08,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:49:08 BoogieIcfgContainer [2025-02-07 18:49:08,298 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 18:49:08,299 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 18:49:08,300 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 18:49:08,304 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 18:49:08,304 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 06:49:07" (1/3) ... [2025-02-07 18:49:08,309 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae12e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:49:08, skipping insertion in model container [2025-02-07 18:49:08,309 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:07" (2/3) ... [2025-02-07 18:49:08,310 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ae12e42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:49:08, skipping insertion in model container [2025-02-07 18:49:08,310 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:49:08" (3/3) ... [2025-02-07 18:49:08,311 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_1251.c [2025-02-07 18:49:08,325 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 18:49:08,328 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_1251.c that has 3 procedures, 40 locations, 1 initial locations, 2 loop locations, and 3 error locations. [2025-02-07 18:49:08,377 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 18:49:08,388 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;@31ef0cce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 18:49:08,388 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-02-07 18:49:08,391 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 31 states have internal predecessors, (43), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-07 18:49:08,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-02-07 18:49:08,396 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 18:49:08,396 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 18:49:08,396 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __fpclassify_floatErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, __fpclassify_floatErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2025-02-07 18:49:08,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 18:49:08,400 INFO L85 PathProgramCache]: Analyzing trace with hash 166616348, now seen corresponding path program 1 times [2025-02-07 18:49:08,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 18:49:08,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095511021] [2025-02-07 18:49:08,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 18:49:08,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 18:49:08,451 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-02-07 18:49:08,464 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-02-07 18:49:08,464 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:49:08,464 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 18:49:08,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-07 18:49:08,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-07 18:49:08,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095511021] [2025-02-07 18:49:08,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095511021] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 18:49:08,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 18:49:08,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 18:49:08,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175241661] [2025-02-07 18:49:08,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 18:49:08,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 18:49:08,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-07 18:49:08,551 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 18:49:08,551 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 18:49:08,553 INFO L87 Difference]: Start difference. First operand has 40 states, 29 states have (on average 1.4827586206896552) internal successors, (43), 31 states have internal predecessors, (43), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-07 18:49:08,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 18:49:08,599 INFO L93 Difference]: Finished difference Result 52 states and 71 transitions. [2025-02-07 18:49:08,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 18:49:08,600 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2025-02-07 18:49:08,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 18:49:08,604 INFO L225 Difference]: With dead ends: 52 [2025-02-07 18:49:08,604 INFO L226 Difference]: Without dead ends: 26 [2025-02-07 18:49:08,606 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 18:49:08,607 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-07 18:49:08,608 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-07 18:49:08,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2025-02-07 18:49:08,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2025-02-07 18:49:08,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2025-02-07 18:49:08,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2025-02-07 18:49:08,629 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 15 [2025-02-07 18:49:08,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 18:49:08,629 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2025-02-07 18:49:08,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2025-02-07 18:49:08,630 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2025-02-07 18:49:08,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-02-07 18:49:08,630 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 18:49:08,630 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 18:49:08,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 18:49:08,631 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __fpclassify_floatErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, __fpclassify_floatErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2025-02-07 18:49:08,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 18:49:08,632 INFO L85 PathProgramCache]: Analyzing trace with hash 498003104, now seen corresponding path program 1 times [2025-02-07 18:49:08,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 18:49:08,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331531740] [2025-02-07 18:49:08,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 18:49:08,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 18:49:08,639 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-07 18:49:08,663 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-07 18:49:08,663 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:49:08,663 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 18:49:08,663 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-07 18:49:08,666 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-07 18:49:08,676 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-07 18:49:08,677 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:49:08,677 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 18:49:08,688 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-07 18:49:08,689 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-07 18:49:08,690 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location __fpclassify_floatErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (2 of 3 remaining) [2025-02-07 18:49:08,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2025-02-07 18:49:08,692 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2025-02-07 18:49:08,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-07 18:49:08,696 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-07 18:49:08,708 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 18:49:08,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 06:49:08 BoogieIcfgContainer [2025-02-07 18:49:08,710 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 18:49:08,710 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 18:49:08,710 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 18:49:08,710 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 18:49:08,712 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:49:08" (3/4) ... [2025-02-07 18:49:08,713 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-07 18:49:08,714 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 18:49:08,714 INFO L158 Benchmark]: Toolchain (without parser) took 966.84ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 49.1MB in the end (delta: 56.6MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-02-07 18:49:08,714 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 128.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:49:08,714 INFO L158 Benchmark]: CACSL2BoogieTranslator took 194.61ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 93.8MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 18:49:08,715 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.19ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 93.0MB in the end (delta: 782.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:49:08,715 INFO L158 Benchmark]: Boogie Preprocessor took 35.31ms. Allocated memory is still 142.6MB. Free memory was 93.0MB in the beginning and 91.1MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 18:49:08,715 INFO L158 Benchmark]: IcfgBuilder took 288.91ms. Allocated memory is still 142.6MB. Free memory was 91.1MB in the beginning and 75.2MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 18:49:08,720 INFO L158 Benchmark]: TraceAbstraction took 410.35ms. Allocated memory is still 142.6MB. Free memory was 75.2MB in the beginning and 49.1MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-07 18:49:08,720 INFO L158 Benchmark]: Witness Printer took 3.54ms. Allocated memory is still 142.6MB. Free memory is still 49.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:49:08,721 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 201.3MB. Free memory is still 128.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 194.61ms. Allocated memory is still 142.6MB. Free memory was 105.7MB in the beginning and 93.8MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.19ms. Allocated memory is still 142.6MB. Free memory was 93.8MB in the beginning and 93.0MB in the end (delta: 782.6kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.31ms. Allocated memory is still 142.6MB. Free memory was 93.0MB in the beginning and 91.1MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 288.91ms. Allocated memory is still 142.6MB. Free memory was 91.1MB in the beginning and 75.2MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 410.35ms. Allocated memory is still 142.6MB. Free memory was 75.2MB in the beginning and 49.1MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 3.54ms. Allocated memory is still 142.6MB. Free memory is still 49.1MB. 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: 26]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: overapproximation of union with floats in the HoenickeLindenmann_Original memory model at line 26, overapproximation of someBinaryFLOATComparisonOperation at line 57. Possible FailurePath: [L66] float x = __VERIFIER_nondet_float(); [L67] float y = __VERIFIER_nondet_float(); [L69] CALL, EXPR isnan_float(x) VAL [\old(x)=55] [L57] return x != x; VAL [\old(x)=55, \result=1] [L69] RET, EXPR isnan_float(x) VAL [x=55] [L69] EXPR isnan_float(x) && !isnan_float(y) VAL [x=55] [L69] CALL, EXPR isnan_float(y) VAL [\old(x)=54] [L57] return x != x; VAL [\old(x)=54, \result=0] [L69] RET, EXPR isnan_float(y) VAL [x=55, y=54] [L69] EXPR isnan_float(x) && !isnan_float(y) VAL [x=55, y=54] [L69-L70] (isnan_float(x) && !isnan_float(y)) || (!isnan_float(x) && isnan_float(y)) VAL [x=55, y=54] [L69-L70] COND TRUE (isnan_float(x) && !isnan_float(y)) || (!isnan_float(x) && isnan_float(y)) [L72] CALL fmax_float(x, y) [L46] CALL __fpclassify_float(x) VAL [\old(x)=55] [L23] __uint32_t w; VAL [\old(x)=55] [L29] COND TRUE 0 VAL [\old(x)=55] [L26] ieee_float_shape_type gf_u; VAL [\old(x)=55] - UnprovableResult [Line: 82]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 76]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 40 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 2, 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, 76 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 30 mSDtfsCounter, 19 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-02-07 18:49:08,733 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1251.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 de540e539c3db6027c1fdb04fcc6cae02aafb8aa58950d31054b2b0b8391af6d --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 18:49:10,563 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 18:49:10,652 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-02-07 18:49:10,660 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 18:49:10,660 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 18:49:10,686 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 18:49:10,689 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 18:49:10,689 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 18:49:10,689 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 18:49:10,689 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 18:49:10,689 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 18:49:10,689 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 18:49:10,689 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 18:49:10,690 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 18:49:10,690 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 18:49:10,691 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 18:49:10,691 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 18:49:10,691 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 18:49:10,691 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 18:49:10,692 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 18:49:10,692 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 18:49:10,692 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 18:49:10,692 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 18:49:10,692 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-07 18:49:10,692 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-07 18:49:10,692 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-07 18:49:10,692 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 18:49:10,692 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 18:49:10,692 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 18:49:10,692 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 18:49:10,693 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 18:49:10,693 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 18:49:10,693 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 18:49:10,693 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 18:49:10,693 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:49:10,694 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 18:49:10,694 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 18:49:10,694 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 18:49:10,694 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 18:49:10,694 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-07 18:49:10,694 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-07 18:49:10,694 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 18:49:10,694 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 18:49:10,694 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 18:49:10,694 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 18:49:10,694 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> de540e539c3db6027c1fdb04fcc6cae02aafb8aa58950d31054b2b0b8391af6d [2025-02-07 18:49:10,969 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 18:49:10,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 18:49:10,980 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 18:49:10,981 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 18:49:10,982 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 18:49:10,983 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1251.c [2025-02-07 18:49:12,225 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ff5a3e1a8/e84a56600e0845758e93fe3717df7b03/FLAG4ddca9b00 [2025-02-07 18:49:12,476 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 18:49:12,477 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1251.c [2025-02-07 18:49:12,484 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ff5a3e1a8/e84a56600e0845758e93fe3717df7b03/FLAG4ddca9b00 [2025-02-07 18:49:12,832 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/ff5a3e1a8/e84a56600e0845758e93fe3717df7b03 [2025-02-07 18:49:12,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 18:49:12,836 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 18:49:12,837 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 18:49:12,837 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 18:49:12,840 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 18:49:12,841 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:49:12" (1/1) ... [2025-02-07 18:49:12,842 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bb388e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:12, skipping insertion in model container [2025-02-07 18:49:12,842 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:49:12" (1/1) ... [2025-02-07 18:49:12,854 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 18:49:12,958 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[1980,1993] [2025-02-07 18:49:12,960 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[2139,2152] [2025-02-07 18:49:12,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:49:12,969 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 18:49:12,983 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[1980,1993] [2025-02-07 18:49:12,984 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[2139,2152] [2025-02-07 18:49:12,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:49:12,996 INFO L204 MainTranslator]: Completed translation [2025-02-07 18:49:12,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:12 WrapperNode [2025-02-07 18:49:12,996 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 18:49:12,997 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 18:49:12,997 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 18:49:12,997 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 18:49:13,001 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:12" (1/1) ... [2025-02-07 18:49:13,011 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:12" (1/1) ... [2025-02-07 18:49:13,021 INFO L138 Inliner]: procedures = 21, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 96 [2025-02-07 18:49:13,021 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 18:49:13,022 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 18:49:13,022 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 18:49:13,022 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 18:49:13,026 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:12" (1/1) ... [2025-02-07 18:49:13,027 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:12" (1/1) ... [2025-02-07 18:49:13,029 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:12" (1/1) ... [2025-02-07 18:49:13,036 INFO L175 MemorySlicer]: Split 4 memory accesses to 2 slices as follows [2, 2]. 50 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2025-02-07 18:49:13,036 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:12" (1/1) ... [2025-02-07 18:49:13,036 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:12" (1/1) ... [2025-02-07 18:49:13,042 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:12" (1/1) ... [2025-02-07 18:49:13,042 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:12" (1/1) ... [2025-02-07 18:49:13,043 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:12" (1/1) ... [2025-02-07 18:49:13,044 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:12" (1/1) ... [2025-02-07 18:49:13,045 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 18:49:13,046 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 18:49:13,046 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 18:49:13,046 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 18:49:13,047 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:12" (1/1) ... [2025-02-07 18:49:13,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:49:13,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 18:49:13,091 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-07 18:49:13,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-07 18:49:13,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 18:49:13,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-07 18:49:13,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-07 18:49:13,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-07 18:49:13,110 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2025-02-07 18:49:13,110 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2025-02-07 18:49:13,110 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2025-02-07 18:49:13,110 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2025-02-07 18:49:13,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-07 18:49:13,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-07 18:49:13,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 18:49:13,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 18:49:13,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2025-02-07 18:49:13,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2025-02-07 18:49:13,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-07 18:49:13,170 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 18:49:13,171 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 18:49:13,292 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L81: assume main_#t~short22#1 && !~fp.eq~32(main_~res~0#1, main_~x~0#1);havoc main_#t~ret20#1;havoc main_#t~ret21#1;havoc main_#t~short22#1; [2025-02-07 18:49:13,292 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L81: assume !(main_#t~short22#1 && !~fp.eq~32(main_~res~0#1, main_~x~0#1));havoc main_#t~ret20#1;havoc main_#t~ret21#1;havoc main_#t~short22#1;havoc main_~res~0#1; [2025-02-07 18:49:13,293 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L81-1: main_#t~short22#1 := 0bv32 != main_#t~ret21#1; [2025-02-07 18:49:13,293 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L81-2: SUMMARY for call main_#t~ret21#1 := isnan_float(main_~y~0#1); srcloc: null [2025-02-07 18:49:13,293 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L81-3: assume main_#t~short22#1; [2025-02-07 18:49:13,293 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L81-3: assume !main_#t~short22#1; [2025-02-07 18:49:13,293 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L81-4: main_#t~short22#1 := 0bv32 == main_#t~ret20#1; [2025-02-07 18:49:13,293 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L81-5: SUMMARY for call main_#t~ret20#1 := isnan_float(main_~x~0#1); srcloc: null [2025-02-07 18:49:13,293 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L75: assume main_#t~short19#1 && !~fp.eq~32(main_~res~0#1, main_~y~0#1);havoc main_#t~ret17#1;havoc main_#t~ret18#1;havoc main_#t~short19#1; [2025-02-07 18:49:13,293 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L75: assume !(main_#t~short19#1 && !~fp.eq~32(main_~res~0#1, main_~y~0#1));havoc main_#t~ret17#1;havoc main_#t~ret18#1;havoc main_#t~short19#1; [2025-02-07 18:49:13,294 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L75-1: main_#t~short19#1 := 0bv32 == main_#t~ret18#1; [2025-02-07 18:49:13,294 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L75-2: SUMMARY for call main_#t~ret18#1 := isnan_float(main_~y~0#1); srcloc: null [2025-02-07 18:49:13,294 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L75-3: assume main_#t~short19#1; [2025-02-07 18:49:13,294 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L75-3: assume !main_#t~short19#1; [2025-02-07 18:49:13,294 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L75-4: main_#t~short19#1 := 0bv32 != main_#t~ret17#1; [2025-02-07 18:49:13,294 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L75-5: SUMMARY for call main_#t~ret17#1 := isnan_float(main_~x~0#1); srcloc: null [2025-02-07 18:49:13,294 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L82: assume false;main_#res#1 := 1bv32; [2025-02-07 18:49:13,294 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L82: assume !false; [2025-02-07 18:49:13,294 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L76: assume false;main_#res#1 := 1bv32; [2025-02-07 18:49:13,294 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L76: assume !false; [2025-02-07 18:49:13,294 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L72: main_#t~ret16#1 := fmax_float_#res#1;havoc fmax_float_#t~ret5#1, fmax_float_#t~ret6#1, fmax_float_~x#1, fmax_float_~y#1;havoc fmax_float_#in~x#1, fmax_float_#in~y#1;assume { :end_inline_fmax_float } true;main_~res~0#1 := main_#t~ret16#1;havoc main_#t~ret16#1; [2025-02-07 18:49:13,332 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2025-02-07 18:49:13,332 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 18:49:13,337 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 18:49:13,338 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 18:49:13,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:49:13 BoogieIcfgContainer [2025-02-07 18:49:13,338 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 18:49:13,339 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 18:49:13,340 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 18:49:13,342 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 18:49:13,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 06:49:12" (1/3) ... [2025-02-07 18:49:13,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d709d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:49:13, skipping insertion in model container [2025-02-07 18:49:13,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:12" (2/3) ... [2025-02-07 18:49:13,343 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11d709d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:49:13, skipping insertion in model container [2025-02-07 18:49:13,343 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:49:13" (3/3) ... [2025-02-07 18:49:13,344 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_1251.c [2025-02-07 18:49:13,353 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 18:49:13,354 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_1251.c that has 3 procedures, 35 locations, 1 initial locations, 1 loop locations, and 2 error locations. [2025-02-07 18:49:13,394 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 18:49:13,407 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;@384d8770, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 18:49:13,407 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-07 18:49:13,409 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 25 states have (on average 1.48) internal successors, (37), 26 states have internal predecessors, (37), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-07 18:49:13,414 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-07 18:49:13,417 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-02-07 18:49:13,418 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2025-02-07 18:49:13,420 INFO L422 BasicCegarLoop]: Path program histogram: [] [2025-02-07 18:49:13,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 25 states have (on average 1.48) internal successors, (37), 26 states have internal predecessors, (37), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2025-02-07 18:49:13,451 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 18:49:13,460 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 06:49:13 BoogieIcfgContainer [2025-02-07 18:49:13,460 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 18:49:13,461 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 18:49:13,461 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 18:49:13,461 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 18:49:13,462 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:49:13" (3/4) ... [2025-02-07 18:49:13,464 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-07 18:49:13,467 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure isnan_float [2025-02-07 18:49:13,467 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure __fpclassify_float [2025-02-07 18:49:13,469 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2025-02-07 18:49:13,470 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-02-07 18:49:13,470 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-07 18:49:13,470 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-07 18:49:13,534 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-07 18:49:13,535 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-07 18:49:13,535 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 18:49:13,536 INFO L158 Benchmark]: Toolchain (without parser) took 700.44ms. Allocated memory is still 117.4MB. Free memory was 92.8MB in the beginning and 48.2MB in the end (delta: 44.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-02-07 18:49:13,537 INFO L158 Benchmark]: CDTParser took 1.89ms. Allocated memory is still 83.9MB. Free memory was 62.3MB in the beginning and 62.3MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:49:13,537 INFO L158 Benchmark]: CACSL2BoogieTranslator took 159.38ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 80.5MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 18:49:13,538 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.57ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 79.1MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 18:49:13,538 INFO L158 Benchmark]: Boogie Preprocessor took 23.67ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 77.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:49:13,540 INFO L158 Benchmark]: IcfgBuilder took 291.99ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 62.4MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 18:49:13,540 INFO L158 Benchmark]: TraceAbstraction took 120.29ms. Allocated memory is still 117.4MB. Free memory was 61.7MB in the beginning and 54.2MB in the end (delta: 7.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:49:13,540 INFO L158 Benchmark]: Witness Printer took 74.06ms. Allocated memory is still 117.4MB. Free memory was 54.0MB in the beginning and 48.2MB in the end (delta: 5.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:49:13,541 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.89ms. Allocated memory is still 83.9MB. Free memory was 62.3MB in the beginning and 62.3MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 159.38ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 80.5MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.57ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 79.1MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.67ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 77.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 291.99ms. Allocated memory is still 117.4MB. Free memory was 77.5MB in the beginning and 62.4MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 120.29ms. Allocated memory is still 117.4MB. Free memory was 61.7MB in the beginning and 54.2MB in the end (delta: 7.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 74.06ms. Allocated memory is still 117.4MB. Free memory was 54.0MB in the beginning and 48.2MB in the end (delta: 5.8MB). 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 - PositiveResult [Line: 82]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 76]: 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 3 procedures, 35 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-07 18:49:13,558 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE