./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0470.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_0470.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 e0354aec5a4f4371d364552f3633553fca009761fb9af21d0bd61e13bc971b74 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 18:43:18,885 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 18:43:18,968 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 18:43:18,979 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 18:43:18,979 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 18:43:19,011 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 18:43:19,013 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 18:43:19,013 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 18:43:19,014 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 18:43:19,014 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 18:43:19,014 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 18:43:19,014 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 18:43:19,014 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 18:43:19,015 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 18:43:19,015 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 18:43:19,016 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 18:43:19,016 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 18:43:19,016 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 18:43:19,016 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 18:43:19,016 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 18:43:19,017 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 18:43:19,017 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 18:43:19,017 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 18:43:19,017 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 18:43:19,017 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 18:43:19,017 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 18:43:19,017 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 18:43:19,017 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 18:43:19,018 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 18:43:19,018 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 18:43:19,018 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 18:43:19,018 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 18:43:19,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:43:19,018 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 18:43:19,018 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 18:43:19,019 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 18:43:19,019 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 18:43:19,019 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 18:43:19,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 18:43:19,020 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 18:43:19,020 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 18:43:19,020 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 18:43:19,020 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 18:43:19,020 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 -> e0354aec5a4f4371d364552f3633553fca009761fb9af21d0bd61e13bc971b74 [2025-02-07 18:43:19,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 18:43:19,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 18:43:19,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 18:43:19,374 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 18:43:19,375 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 18:43:19,376 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0470.c [2025-02-07 18:43:20,741 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/355604c3a/0fadff36b3ce4b2287e1fe96325b91b7/FLAG05d9f994f [2025-02-07 18:43:20,982 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 18:43:20,982 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0470.c [2025-02-07 18:43:20,993 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/355604c3a/0fadff36b3ce4b2287e1fe96325b91b7/FLAG05d9f994f [2025-02-07 18:43:21,298 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/355604c3a/0fadff36b3ce4b2287e1fe96325b91b7 [2025-02-07 18:43:21,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 18:43:21,302 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 18:43:21,303 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 18:43:21,303 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 18:43:21,306 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 18:43:21,307 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:43:21" (1/1) ... [2025-02-07 18:43:21,308 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@134efe2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:21, skipping insertion in model container [2025-02-07 18:43:21,308 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:43:21" (1/1) ... [2025-02-07 18:43:21,333 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 18:43:21,500 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_0470.c[4369,4382] [2025-02-07 18:43:21,504 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:43:21,517 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 18:43:21,549 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_0470.c[4369,4382] [2025-02-07 18:43:21,549 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:43:21,562 INFO L204 MainTranslator]: Completed translation [2025-02-07 18:43:21,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:21 WrapperNode [2025-02-07 18:43:21,563 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 18:43:21,564 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 18:43:21,565 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 18:43:21,565 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 18:43:21,570 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:21" (1/1) ... [2025-02-07 18:43:21,582 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:21" (1/1) ... [2025-02-07 18:43:21,613 INFO L138 Inliner]: procedures = 18, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 137 [2025-02-07 18:43:21,617 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 18:43:21,618 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 18:43:21,619 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 18:43:21,619 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 18:43:21,627 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:21" (1/1) ... [2025-02-07 18:43:21,628 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:21" (1/1) ... [2025-02-07 18:43:21,630 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:21" (1/1) ... [2025-02-07 18:43:21,656 INFO L175 MemorySlicer]: Split 12 memory accesses to 6 slices as follows [2, 2, 2, 2, 2, 2]. 17 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 5 writes are split as follows [0, 1, 1, 1, 1, 1]. [2025-02-07 18:43:21,656 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:21" (1/1) ... [2025-02-07 18:43:21,657 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:21" (1/1) ... [2025-02-07 18:43:21,674 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:21" (1/1) ... [2025-02-07 18:43:21,675 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:21" (1/1) ... [2025-02-07 18:43:21,677 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:21" (1/1) ... [2025-02-07 18:43:21,681 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:21" (1/1) ... [2025-02-07 18:43:21,688 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 18:43:21,689 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 18:43:21,689 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 18:43:21,690 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 18:43:21,694 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:21" (1/1) ... [2025-02-07 18:43:21,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:43:21,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 18:43:21,727 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 18:43:21,736 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 18:43:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 18:43:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 18:43:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-07 18:43:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-07 18:43:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-07 18:43:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-02-07 18:43:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-02-07 18:43:21,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-07 18:43:21,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-02-07 18:43:21,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-02-07 18:43:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-02-07 18:43:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-02-07 18:43:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-02-07 18:43:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-02-07 18:43:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-07 18:43:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-07 18:43:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-07 18:43:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-07 18:43:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-02-07 18:43:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-02-07 18:43:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-02-07 18:43:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-02-07 18:43:21,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2025-02-07 18:43:21,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2025-02-07 18:43:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2025-02-07 18:43:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2025-02-07 18:43:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 18:43:21,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 18:43:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-07 18:43:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-07 18:43:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-07 18:43:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-07 18:43:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-02-07 18:43:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-02-07 18:43:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-07 18:43:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2025-02-07 18:43:21,762 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2025-02-07 18:43:21,913 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 18:43:21,916 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 18:43:22,126 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L176: assume false;main_#res#1 := 1; [2025-02-07 18:43:22,126 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L176: assume !false; [2025-02-07 18:43:22,126 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2025-02-07 18:43:22,127 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L175: assume 0 == main_#t~ret15#1;havoc main_#t~ret15#1; [2025-02-07 18:43:22,127 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L175: assume !(0 == main_#t~ret15#1);havoc main_#t~ret15#1;main_#res#1 := 0;#t~ret16#1 := main_#res#1;havoc main_#t~ret14#1, main_#t~ret15#1, main_~x~0#1, main_~res~0#1;assume { :end_inline_main } true; [2025-02-07 18:43:22,127 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L136: havoc __ieee754_acosf_~idf~0#1;main_#t~ret14#1 := __ieee754_acosf_#res#1;havoc __ieee754_acosf_#t~mem9#1, __ieee754_acosf_~#gf_u~1#1.base, __ieee754_acosf_~#gf_u~1#1.offset, __ieee754_acosf_#t~ret10#1, __ieee754_acosf_#t~ret11#1, __ieee754_acosf_#t~mem12#1, __ieee754_acosf_~#gf_u~2#1.base, __ieee754_acosf_~#gf_u~2#1.offset, __ieee754_acosf_#t~mem13#1, __ieee754_acosf_~#sf_u~1#1.base, __ieee754_acosf_~#sf_u~1#1.offset, __ieee754_acosf_~idf~0#1, __ieee754_acosf_~x#1, __ieee754_acosf_~z~1#1, __ieee754_acosf_~p~0#1, __ieee754_acosf_~q~1#1, __ieee754_acosf_~r~1#1, __ieee754_acosf_~w~0#1, __ieee754_acosf_~s~1#1, __ieee754_acosf_~c~0#1, __ieee754_acosf_~df~0#1, __ieee754_acosf_~hx~1#1, __ieee754_acosf_~ix~1#1;havoc __ieee754_acosf_#in~x#1;assume { :end_inline___ieee754_acosf } true;main_~res~0#1 := main_#t~ret14#1;havoc main_#t~ret14#1;assume { :begin_inline_isnan_float } true;isnan_float_#in~x#1 := main_~res~0#1;havoc isnan_float_#res#1;havoc isnan_float_~x#1;isnan_float_~x#1 := isnan_float_#in~x#1;isnan_float_#res#1 := (if ~someBinaryFLOATComparisonOperation(isnan_float_~x#1, isnan_float_~x#1) then 1 else 0);main_#t~ret15#1 := isnan_float_#res#1;havoc isnan_float_~x#1;havoc isnan_float_#in~x#1;assume { :end_inline_isnan_float } true;assume -2147483648 <= main_#t~ret15#1 && main_#t~ret15#1 <= 2147483647; [2025-02-07 18:43:22,293 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2025-02-07 18:43:22,294 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 18:43:22,314 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 18:43:22,314 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 18:43:22,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:43:22 BoogieIcfgContainer [2025-02-07 18:43:22,315 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 18:43:22,317 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 18:43:22,317 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 18:43:22,322 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 18:43:22,322 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 06:43:21" (1/3) ... [2025-02-07 18:43:22,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a995497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:43:22, skipping insertion in model container [2025-02-07 18:43:22,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:21" (2/3) ... [2025-02-07 18:43:22,323 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a995497 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:43:22, skipping insertion in model container [2025-02-07 18:43:22,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:43:22" (3/3) ... [2025-02-07 18:43:22,325 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_0470.c [2025-02-07 18:43:22,337 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 18:43:22,339 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_0470.c that has 2 procedures, 69 locations, 1 initial locations, 12 loop locations, and 6 error locations. [2025-02-07 18:43:22,403 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 18:43:22,418 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;@5314c80a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 18:43:22,419 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2025-02-07 18:43:22,424 INFO L276 IsEmpty]: Start isEmpty. Operand has 68 states, 59 states have (on average 1.7118644067796611) internal successors, (101), 64 states have internal predecessors, (101), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-07 18:43:22,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-07 18:43:22,429 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 18:43:22,430 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-07 18:43:22,430 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 3 more)] === [2025-02-07 18:43:22,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 18:43:22,437 INFO L85 PathProgramCache]: Analyzing trace with hash 2799326, now seen corresponding path program 1 times [2025-02-07 18:43:22,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 18:43:22,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697533550] [2025-02-07 18:43:22,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 18:43:22,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 18:43:22,506 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-07 18:43:22,519 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-07 18:43:22,519 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:43:22,519 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 18:43:22,520 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-07 18:43:22,524 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-07 18:43:22,531 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-07 18:43:22,531 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:43:22,531 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 18:43:22,550 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-07 18:43:22,551 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-07 18:43:22,553 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONUNSUPPORTED_FEATURE (5 of 6 remaining) [2025-02-07 18:43:22,554 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2025-02-07 18:43:22,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (3 of 6 remaining) [2025-02-07 18:43:22,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (2 of 6 remaining) [2025-02-07 18:43:22,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (1 of 6 remaining) [2025-02-07 18:43:22,555 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 6 remaining) [2025-02-07 18:43:22,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 18:43:22,563 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-07 18:43:22,577 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 18:43:22,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 06:43:22 BoogieIcfgContainer [2025-02-07 18:43:22,580 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 18:43:22,581 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 18:43:22,581 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 18:43:22,581 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 18:43:22,582 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:43:22" (3/4) ... [2025-02-07 18:43:22,584 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-07 18:43:22,584 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 18:43:22,586 INFO L158 Benchmark]: Toolchain (without parser) took 1283.66ms. Allocated memory is still 142.6MB. Free memory was 113.0MB in the beginning and 60.6MB in the end (delta: 52.4MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2025-02-07 18:43:22,586 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 201.3MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:43:22,586 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.81ms. Allocated memory is still 142.6MB. Free memory was 112.5MB in the beginning and 99.2MB in the end (delta: 13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 18:43:22,586 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.62ms. Allocated memory is still 142.6MB. Free memory was 99.2MB in the beginning and 97.6MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 18:43:22,587 INFO L158 Benchmark]: Boogie Preprocessor took 71.16ms. Allocated memory is still 142.6MB. Free memory was 97.6MB in the beginning and 94.6MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:43:22,587 INFO L158 Benchmark]: IcfgBuilder took 625.39ms. Allocated memory is still 142.6MB. Free memory was 94.6MB in the beginning and 74.4MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 18:43:22,587 INFO L158 Benchmark]: TraceAbstraction took 262.81ms. Allocated memory is still 142.6MB. Free memory was 74.0MB in the beginning and 60.6MB in the end (delta: 13.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 18:43:22,588 INFO L158 Benchmark]: Witness Printer took 3.98ms. Allocated memory is still 142.6MB. Free memory is still 60.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:43:22,589 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 201.3MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.81ms. Allocated memory is still 142.6MB. Free memory was 112.5MB in the beginning and 99.2MB in the end (delta: 13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.62ms. Allocated memory is still 142.6MB. Free memory was 99.2MB in the beginning and 97.6MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.16ms. Allocated memory is still 142.6MB. Free memory was 97.6MB in the beginning and 94.6MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 625.39ms. Allocated memory is still 142.6MB. Free memory was 94.6MB in the beginning and 74.4MB in the end (delta: 20.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 262.81ms. Allocated memory is still 142.6MB. Free memory was 74.0MB in the beginning and 60.6MB in the end (delta: 13.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.98ms. Allocated memory is still 142.6MB. Free memory is still 60.6MB. 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: 99]: 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 99, overapproximation of someUnaryDOUBLEoperation at line 89, overapproximation of someBinaryArithmeticFLOAToperation at line 171. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L86-L93] static const float one_acos = 1.0000000000e+00, pi = 3.1415925026e+00, pio2_hi_acos = 1.5707962513e+00, pio2_lo_acos = 7.5497894159e-08, pS0_acos = 1.6666667163e-01, pS1_acos = -3.2556581497e-01, pS2_acos = 2.0121252537e-01, pS3_acos = -4.0055535734e-02, pS4_acos = 7.9153501429e-04, pS5_acos = 3.4793309169e-05, qS1_acos = -2.4033949375e+00, qS2_acos = 2.0209457874e+00, qS3_acos = -6.8828397989e-01, qS4_acos = 7.7038154006e-02; [L171] float x = 0.0f / 0.0f; [L172] CALL __ieee754_acosf(x) [L96] float z, p, q, r, w, s, c, df; [L97] __int32_t hx, ix; VAL [one_acos=1, one_sqrt=1, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, pi=15707962513/5000000000, pio2_hi_acos=15707962513/10000000000, pio2_lo_acos=75497894159/1000000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L102] COND TRUE 0 VAL [one_acos=1, one_sqrt=1, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, pi=15707962513/5000000000, pio2_hi_acos=15707962513/10000000000, pio2_lo_acos=75497894159/1000000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L99] ieee_float_shape_type gf_u; VAL [one_acos=1, one_sqrt=1, pS0_acos=16666667163/100000000000, pS2_acos=20121252537/100000000000, pS4_acos=79153501429/100000000000000, pS5_acos=34793309169/1000000000000000, pi=15707962513/5000000000, pio2_hi_acos=15707962513/10000000000, pio2_lo_acos=75497894159/1000000000000000000, qS2_acos=10104728937/5000000000, qS4_acos=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] - UnprovableResult [Line: 176]: 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: 147]: 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: Not analyzed. - UnprovableResult [Line: 142]: 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: Not analyzed. - UnprovableResult [Line: 79]: 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: Not analyzed. - UnprovableResult [Line: 25]: 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: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 69 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-02-07 18:43:22,608 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 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_0470.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 e0354aec5a4f4371d364552f3633553fca009761fb9af21d0bd61e13bc971b74 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 18:43:25,015 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 18:43:25,140 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-02-07 18:43:25,146 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 18:43:25,147 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 18:43:25,180 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 18:43:25,181 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 18:43:25,182 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 18:43:25,182 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 18:43:25,182 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 18:43:25,182 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 18:43:25,182 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 18:43:25,182 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 18:43:25,182 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 18:43:25,183 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 18:43:25,183 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 18:43:25,183 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 18:43:25,183 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 18:43:25,183 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 18:43:25,183 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 18:43:25,183 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 18:43:25,183 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 18:43:25,183 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 18:43:25,183 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-07 18:43:25,183 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-07 18:43:25,183 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-07 18:43:25,184 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 18:43:25,184 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 18:43:25,184 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 18:43:25,184 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 18:43:25,184 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 18:43:25,184 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 18:43:25,184 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 18:43:25,184 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 18:43:25,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:43:25,184 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 18:43:25,187 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 18:43:25,188 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 18:43:25,188 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 18:43:25,188 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-07 18:43:25,188 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-07 18:43:25,188 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 18:43:25,188 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 18:43:25,189 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 18:43:25,189 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 18:43:25,189 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 -> e0354aec5a4f4371d364552f3633553fca009761fb9af21d0bd61e13bc971b74 [2025-02-07 18:43:25,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 18:43:25,495 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 18:43:25,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 18:43:25,501 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 18:43:25,502 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 18:43:25,504 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0470.c [2025-02-07 18:43:26,857 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2007479a1/e83584592bfa42d9bc65e5d131b1f76f/FLAGe9e6136b2 [2025-02-07 18:43:27,103 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 18:43:27,104 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0470.c [2025-02-07 18:43:27,112 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2007479a1/e83584592bfa42d9bc65e5d131b1f76f/FLAGe9e6136b2 [2025-02-07 18:43:27,432 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2007479a1/e83584592bfa42d9bc65e5d131b1f76f [2025-02-07 18:43:27,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 18:43:27,435 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 18:43:27,437 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 18:43:27,437 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 18:43:27,440 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 18:43:27,441 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:43:27" (1/1) ... [2025-02-07 18:43:27,442 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15181680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:27, skipping insertion in model container [2025-02-07 18:43:27,442 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:43:27" (1/1) ... [2025-02-07 18:43:27,461 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 18:43:27,656 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_0470.c[4369,4382] [2025-02-07 18:43:27,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:43:27,674 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 18:43:27,716 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_0470.c[4369,4382] [2025-02-07 18:43:27,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:43:27,738 INFO L204 MainTranslator]: Completed translation [2025-02-07 18:43:27,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:27 WrapperNode [2025-02-07 18:43:27,739 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 18:43:27,740 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 18:43:27,740 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 18:43:27,741 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 18:43:27,747 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:27" (1/1) ... [2025-02-07 18:43:27,765 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:27" (1/1) ... [2025-02-07 18:43:27,798 INFO L138 Inliner]: procedures = 21, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 131 [2025-02-07 18:43:27,803 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 18:43:27,803 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 18:43:27,804 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 18:43:27,804 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 18:43:27,812 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:27" (1/1) ... [2025-02-07 18:43:27,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:27" (1/1) ... [2025-02-07 18:43:27,818 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:27" (1/1) ... [2025-02-07 18:43:27,847 INFO L175 MemorySlicer]: Split 12 memory accesses to 6 slices as follows [2, 2, 2, 2, 2, 2]. 17 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 5 writes are split as follows [0, 1, 1, 1, 1, 1]. [2025-02-07 18:43:27,847 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:27" (1/1) ... [2025-02-07 18:43:27,847 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:27" (1/1) ... [2025-02-07 18:43:27,867 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:27" (1/1) ... [2025-02-07 18:43:27,872 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:27" (1/1) ... [2025-02-07 18:43:27,874 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:27" (1/1) ... [2025-02-07 18:43:27,880 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:27" (1/1) ... [2025-02-07 18:43:27,887 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 18:43:27,892 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 18:43:27,892 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 18:43:27,892 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 18:43:27,894 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:27" (1/1) ... [2025-02-07 18:43:27,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:43:27,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 18:43:27,928 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 18:43:27,936 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 18:43:27,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 18:43:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-07 18:43:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-07 18:43:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-07 18:43:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-02-07 18:43:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2025-02-07 18:43:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2025-02-07 18:43:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-07 18:43:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2025-02-07 18:43:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2025-02-07 18:43:27,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2025-02-07 18:43:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2025-02-07 18:43:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2025-02-07 18:43:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2025-02-07 18:43:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-07 18:43:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-07 18:43:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-07 18:43:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-02-07 18:43:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2025-02-07 18:43:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2025-02-07 18:43:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 18:43:27,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 18:43:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2025-02-07 18:43:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2025-02-07 18:43:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2025-02-07 18:43:27,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2025-02-07 18:43:27,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2025-02-07 18:43:27,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2025-02-07 18:43:27,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-07 18:43:27,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-07 18:43:27,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-07 18:43:27,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-02-07 18:43:27,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2025-02-07 18:43:27,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2025-02-07 18:43:27,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-07 18:43:27,965 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2025-02-07 18:43:27,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2025-02-07 18:43:28,087 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 18:43:28,089 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 18:43:46,366 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L176: assume false;main_#res#1 := 1bv32; [2025-02-07 18:43:46,367 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L176: assume !false; [2025-02-07 18:43:46,367 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2025-02-07 18:43:46,367 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L175: assume 0bv32 == main_#t~ret13#1;havoc main_#t~ret13#1; [2025-02-07 18:43:46,367 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L175: assume !(0bv32 == main_#t~ret13#1);havoc main_#t~ret13#1;main_#res#1 := 0bv32;#t~ret14#1 := main_#res#1;havoc main_#t~ret12#1, main_#t~ret13#1, main_~x~0#1, main_~res~0#1;assume { :end_inline_main } true; [2025-02-07 18:43:46,367 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L136: havoc __ieee754_acosf_~idf~0#1;main_#t~ret12#1 := __ieee754_acosf_#res#1;havoc __ieee754_acosf_#t~mem7#1, __ieee754_acosf_~#gf_u~1#1.base, __ieee754_acosf_~#gf_u~1#1.offset, __ieee754_acosf_#t~ret8#1, __ieee754_acosf_#t~ret9#1, __ieee754_acosf_#t~mem10#1, __ieee754_acosf_~#gf_u~2#1.base, __ieee754_acosf_~#gf_u~2#1.offset, __ieee754_acosf_#t~mem11#1, __ieee754_acosf_~#sf_u~1#1.base, __ieee754_acosf_~#sf_u~1#1.offset, __ieee754_acosf_~idf~0#1, __ieee754_acosf_~x#1, __ieee754_acosf_~z~1#1, __ieee754_acosf_~p~0#1, __ieee754_acosf_~q~1#1, __ieee754_acosf_~r~1#1, __ieee754_acosf_~w~0#1, __ieee754_acosf_~s~1#1, __ieee754_acosf_~c~0#1, __ieee754_acosf_~df~0#1, __ieee754_acosf_~hx~1#1, __ieee754_acosf_~ix~1#1;havoc __ieee754_acosf_#in~x#1;assume { :end_inline___ieee754_acosf } true;main_~res~0#1 := main_#t~ret12#1;havoc main_#t~ret12#1;assume { :begin_inline_isnan_float } true;isnan_float_#in~x#1 := main_~res~0#1;havoc isnan_float_#res#1;havoc isnan_float_~x#1;isnan_float_~x#1 := isnan_float_#in~x#1;isnan_float_#res#1 := (if !~fp.eq~32(isnan_float_~x#1, isnan_float_~x#1) then 1bv32 else 0bv32);main_#t~ret13#1 := isnan_float_#res#1;havoc isnan_float_~x#1;havoc isnan_float_#in~x#1;assume { :end_inline_isnan_float } true; [2025-02-07 18:43:48,477 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2025-02-07 18:43:48,478 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 18:43:48,488 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 18:43:48,488 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 18:43:48,489 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:43:48 BoogieIcfgContainer [2025-02-07 18:43:48,489 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 18:43:48,491 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 18:43:48,492 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 18:43:48,498 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 18:43:48,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 06:43:27" (1/3) ... [2025-02-07 18:43:48,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b3164b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:43:48, skipping insertion in model container [2025-02-07 18:43:48,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:43:27" (2/3) ... [2025-02-07 18:43:48,501 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b3164b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:43:48, skipping insertion in model container [2025-02-07 18:43:48,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:43:48" (3/3) ... [2025-02-07 18:43:48,502 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_0470.c [2025-02-07 18:43:48,515 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 18:43:48,517 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_0470.c that has 2 procedures, 45 locations, 1 initial locations, 7 loop locations, and 1 error locations. [2025-02-07 18:43:48,562 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 18:43:48,572 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;@76f7215d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 18:43:48,572 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 18:43:48,576 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 40 states have (on average 1.675) internal successors, (67), 40 states have internal predecessors, (67), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-07 18:43:48,582 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-07 18:43:48,584 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-07 18:43:48,588 INFO L422 BasicCegarLoop]: Path program histogram: [] [2025-02-07 18:43:48,597 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 44 states, 40 states have (on average 1.675) internal successors, (67), 40 states have internal predecessors, (67), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-07 18:43:48,624 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 18:43:48,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 06:43:48 BoogieIcfgContainer [2025-02-07 18:43:48,632 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 18:43:48,633 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 18:43:48,633 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 18:43:48,633 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 18:43:48,634 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:43:48" (3/4) ... [2025-02-07 18:43:48,636 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-07 18:43:48,640 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2025-02-07 18:43:48,645 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2025-02-07 18:43:48,647 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2025-02-07 18:43:48,647 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-07 18:43:48,647 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-07 18:43:48,751 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-07 18:43:48,751 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-07 18:43:48,751 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 18:43:48,752 INFO L158 Benchmark]: Toolchain (without parser) took 21317.02ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 90.0MB in the end (delta: 2.6MB). Peak memory consumption was 64.3MB. Max. memory is 16.1GB. [2025-02-07 18:43:48,753 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 83.9MB. Free memory is still 61.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:43:48,753 INFO L158 Benchmark]: CACSL2BoogieTranslator took 302.91ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 77.8MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 18:43:48,754 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.64ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 76.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:43:48,755 INFO L158 Benchmark]: Boogie Preprocessor took 87.92ms. Allocated memory is still 117.4MB. Free memory was 76.3MB in the beginning and 73.0MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:43:48,755 INFO L158 Benchmark]: IcfgBuilder took 20596.79ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 52.1MB in the end (delta: 20.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-02-07 18:43:48,755 INFO L158 Benchmark]: TraceAbstraction took 140.97ms. Allocated memory is still 117.4MB. Free memory was 51.6MB in the beginning and 43.8MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 18:43:48,755 INFO L158 Benchmark]: Witness Printer took 118.44ms. Allocated memory is still 117.4MB. Free memory was 43.5MB in the beginning and 90.0MB in the end (delta: -46.4MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2025-02-07 18:43:48,757 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 83.9MB. Free memory is still 61.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 302.91ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 77.8MB in the end (delta: 14.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.64ms. Allocated memory is still 117.4MB. Free memory was 77.8MB in the beginning and 76.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 87.92ms. Allocated memory is still 117.4MB. Free memory was 76.3MB in the beginning and 73.0MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 20596.79ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 52.1MB in the end (delta: 20.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 140.97ms. Allocated memory is still 117.4MB. Free memory was 51.6MB in the beginning and 43.8MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 118.44ms. Allocated memory is still 117.4MB. Free memory was 43.5MB in the beginning and 90.0MB in the end (delta: -46.4MB). Peak memory consumption was 14.0MB. 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: 176]: 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 2 procedures, 45 locations, 1 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=44occurred 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-07 18:43:48,969 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2025-02-07 18:43:48,979 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 Writing output log to file Ultimate.log Result: TRUE