./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0920b.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_0920b.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 45e9ef0692e3186ad9297b4e869c7d15f1ceee202d872ad29a65efad2e93c077 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 18:47:40,771 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 18:47:40,811 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 18:47:40,814 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 18:47:40,815 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 18:47:40,829 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 18:47:40,829 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 18:47:40,829 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 18:47:40,829 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 18:47:40,830 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 18:47:40,830 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 18:47:40,830 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 18:47:40,830 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 18:47:40,830 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 18:47:40,830 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 18:47:40,830 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 18:47:40,830 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 18:47:40,830 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 18:47:40,831 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 18:47:40,831 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 18:47:40,831 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 18:47:40,831 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 18:47:40,831 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 18:47:40,831 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 18:47:40,831 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 18:47:40,831 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 18:47:40,831 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 18:47:40,831 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 18:47:40,831 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 18:47:40,832 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 18:47:40,832 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 18:47:40,832 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 18:47:40,832 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:47:40,832 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 18:47:40,832 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 18:47:40,832 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 18:47:40,832 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 18:47:40,832 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 18:47:40,832 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 18:47:40,832 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 18:47:40,833 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 18:47:40,833 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 18:47:40,833 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 18:47:40,833 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 -> 45e9ef0692e3186ad9297b4e869c7d15f1ceee202d872ad29a65efad2e93c077 [2025-02-07 18:47:41,044 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 18:47:41,050 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 18:47:41,051 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 18:47:41,052 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 18:47:41,052 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 18:47:41,053 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c [2025-02-07 18:47:42,234 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/33b2c5da5/a5b360dec90840cdba4e40e8e279705a/FLAG15264cc34 [2025-02-07 18:47:42,453 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 18:47:42,454 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c [2025-02-07 18:47:42,462 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/33b2c5da5/a5b360dec90840cdba4e40e8e279705a/FLAG15264cc34 [2025-02-07 18:47:42,510 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/33b2c5da5/a5b360dec90840cdba4e40e8e279705a [2025-02-07 18:47:42,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 18:47:42,513 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 18:47:42,515 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 18:47:42,516 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 18:47:42,519 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 18:47:42,519 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:47:42" (1/1) ... [2025-02-07 18:47:42,521 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14d91769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:42, skipping insertion in model container [2025-02-07 18:47:42,521 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:47:42" (1/1) ... [2025-02-07 18:47:42,535 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 18:47:42,671 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_0920b.c[3250,3263] [2025-02-07 18:47:42,672 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:47:42,680 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 18:47:42,712 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_0920b.c[3250,3263] [2025-02-07 18:47:42,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:47:42,725 INFO L204 MainTranslator]: Completed translation [2025-02-07 18:47:42,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:42 WrapperNode [2025-02-07 18:47:42,726 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 18:47:42,726 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 18:47:42,726 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 18:47:42,726 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 18:47:42,731 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:42" (1/1) ... [2025-02-07 18:47:42,742 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:42" (1/1) ... [2025-02-07 18:47:42,761 INFO L138 Inliner]: procedures = 18, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 179 [2025-02-07 18:47:42,761 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 18:47:42,765 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 18:47:42,765 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 18:47:42,765 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 18:47:42,770 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:42" (1/1) ... [2025-02-07 18:47:42,770 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:42" (1/1) ... [2025-02-07 18:47:42,772 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:42" (1/1) ... [2025-02-07 18:47:42,784 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2025-02-07 18:47:42,784 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:42" (1/1) ... [2025-02-07 18:47:42,784 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:42" (1/1) ... [2025-02-07 18:47:42,788 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:42" (1/1) ... [2025-02-07 18:47:42,789 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:42" (1/1) ... [2025-02-07 18:47:42,790 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:42" (1/1) ... [2025-02-07 18:47:42,791 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:42" (1/1) ... [2025-02-07 18:47:42,792 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 18:47:42,793 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 18:47:42,793 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 18:47:42,793 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 18:47:42,794 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:42" (1/1) ... [2025-02-07 18:47:42,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:47:42,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 18:47:42,825 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 18:47:42,831 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 18:47:42,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 18:47:42,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 18:47:42,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-07 18:47:42,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-07 18:47:42,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-02-07 18:47:42,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-07 18:47:42,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-02-07 18:47:42,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-02-07 18:47:42,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-02-07 18:47:42,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-02-07 18:47:42,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-07 18:47:42,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-07 18:47:42,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-07 18:47:42,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-02-07 18:47:42,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-02-07 18:47:42,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-02-07 18:47:42,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2025-02-07 18:47:42,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2025-02-07 18:47:42,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 18:47:42,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 18:47:42,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-07 18:47:42,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-07 18:47:42,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-07 18:47:42,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-02-07 18:47:42,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-07 18:47:42,946 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 18:47:42,947 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 18:47:43,160 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L126: assume 0 == main_#t~ret13#1;havoc main_#t~ret13#1; [2025-02-07 18:47:43,160 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L126: assume !(0 == main_#t~ret13#1);havoc main_#t~ret13#1;main_#res#1 := 0;#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 18:47:43,160 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L127: assume false;main_#res#1 := 1; [2025-02-07 18:47:43,160 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L127: assume !false; [2025-02-07 18:47:43,160 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2025-02-07 18:47:43,160 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L123: main_#t~ret12#1 := __ieee754_logf_#res#1;havoc __ieee754_logf_#t~mem5#1, __ieee754_logf_~#gf_u~1#1.base, __ieee754_logf_~#gf_u~1#1.offset, __ieee754_logf_#t~mem6#1, __ieee754_logf_~#gf_u~2#1.base, __ieee754_logf_~#gf_u~2#1.offset, __ieee754_logf_#t~bitwise7#1, __ieee754_logf_#t~bitwise8#1, __ieee754_logf_#t~bitwise9#1, __ieee754_logf_#t~mem10#1, __ieee754_logf_~#sf_u~0#1.base, __ieee754_logf_~#sf_u~0#1.offset, __ieee754_logf_#t~bitwise11#1, __ieee754_logf_~x#1, __ieee754_logf_~hfsq~0#1, __ieee754_logf_~f~0#1, __ieee754_logf_~s~0#1, __ieee754_logf_~z~0#1, __ieee754_logf_~R~0#1, __ieee754_logf_~w~0#1, __ieee754_logf_~t1~0#1, __ieee754_logf_~t2~0#1, __ieee754_logf_~dk~0#1, __ieee754_logf_~k~0#1, __ieee754_logf_~ix~1#1, __ieee754_logf_~i~0#1, __ieee754_logf_~j~0#1;havoc __ieee754_logf_#in~x#1;assume { :end_inline___ieee754_logf } 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 ~someBinaryFLOATComparisonOperation(isnan_float_~x#1, isnan_float_~x#1) then 1 else 0);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;assume -2147483648 <= main_#t~ret13#1 && main_#t~ret13#1 <= 2147483647; [2025-02-07 18:47:43,171 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2025-02-07 18:47:43,171 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 18:47:43,190 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 18:47:43,190 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 18:47:43,190 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:47:43 BoogieIcfgContainer [2025-02-07 18:47:43,190 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 18:47:43,192 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 18:47:43,192 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 18:47:43,195 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 18:47:43,195 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 06:47:42" (1/3) ... [2025-02-07 18:47:43,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4230aa44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:47:43, skipping insertion in model container [2025-02-07 18:47:43,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:42" (2/3) ... [2025-02-07 18:47:43,196 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4230aa44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:47:43, skipping insertion in model container [2025-02-07 18:47:43,196 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:47:43" (3/3) ... [2025-02-07 18:47:43,197 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920b.c [2025-02-07 18:47:43,206 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 18:47:43,207 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_0920b.c that has 1 procedures, 48 locations, 1 initial locations, 6 loop locations, and 4 error locations. [2025-02-07 18:47:43,242 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 18:47:43,253 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;@2fee24c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 18:47:43,253 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-02-07 18:47:43,256 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 43 states have (on average 1.744186046511628) internal successors, (75), 46 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 18:47:43,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-02-07 18:47:43,259 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 18:47:43,259 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-02-07 18:47:43,259 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 1 more)] === [2025-02-07 18:47:43,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 18:47:43,264 INFO L85 PathProgramCache]: Analyzing trace with hash 4030686, now seen corresponding path program 1 times [2025-02-07 18:47:43,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 18:47:43,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985822166] [2025-02-07 18:47:43,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 18:47:43,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 18:47:43,351 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-07 18:47:43,363 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-07 18:47:43,363 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:47:43,364 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 18:47:43,364 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-07 18:47:43,367 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-02-07 18:47:43,374 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-02-07 18:47:43,374 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:47:43,374 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 18:47:43,387 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-07 18:47:43,388 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-07 18:47:43,389 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONUNSUPPORTED_FEATURE (3 of 4 remaining) [2025-02-07 18:47:43,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2025-02-07 18:47:43,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (1 of 4 remaining) [2025-02-07 18:47:43,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 4 remaining) [2025-02-07 18:47:43,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 18:47:43,396 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-07 18:47:43,412 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 18:47:43,414 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 06:47:43 BoogieIcfgContainer [2025-02-07 18:47:43,415 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 18:47:43,416 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 18:47:43,416 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 18:47:43,416 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 18:47:43,417 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:47:43" (3/4) ... [2025-02-07 18:47:43,419 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-07 18:47:43,420 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 18:47:43,421 INFO L158 Benchmark]: Toolchain (without parser) took 907.43ms. Allocated memory is still 142.6MB. Free memory was 111.2MB in the beginning and 62.1MB in the end (delta: 49.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-02-07 18:47:43,421 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:47:43,421 INFO L158 Benchmark]: CACSL2BoogieTranslator took 210.38ms. Allocated memory is still 142.6MB. Free memory was 111.2MB in the beginning and 98.5MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 18:47:43,421 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.75ms. Allocated memory is still 142.6MB. Free memory was 98.5MB in the beginning and 96.3MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:47:43,422 INFO L158 Benchmark]: Boogie Preprocessor took 27.66ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 94.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:47:43,423 INFO L158 Benchmark]: IcfgBuilder took 397.62ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 76.1MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 18:47:43,423 INFO L158 Benchmark]: TraceAbstraction took 223.49ms. Allocated memory is still 142.6MB. Free memory was 75.4MB in the beginning and 62.8MB in the end (delta: 12.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 18:47:43,423 INFO L158 Benchmark]: Witness Printer took 4.12ms. Allocated memory is still 142.6MB. Free memory was 62.8MB in the beginning and 62.1MB in the end (delta: 690.2kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:47:43,424 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 126.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 210.38ms. Allocated memory is still 142.6MB. Free memory was 111.2MB in the beginning and 98.5MB in the end (delta: 12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.75ms. Allocated memory is still 142.6MB. Free memory was 98.5MB in the beginning and 96.3MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.66ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 94.3MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 397.62ms. Allocated memory is still 142.6MB. Free memory was 94.3MB in the beginning and 76.1MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 223.49ms. Allocated memory is still 142.6MB. Free memory was 75.4MB in the beginning and 62.8MB in the end (delta: 12.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 4.12ms. Allocated memory is still 142.6MB. Free memory was 62.8MB in the beginning and 62.1MB in the end (delta: 690.2kB). 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: 39]: 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 39, overapproximation of someBinaryArithmeticFLOAToperation at line 122. Possible FailurePath: [L26-L30] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L32] static const float zero_log = 0.0; [L122] float x = -1.0f / 0.0f; [L123] CALL __ieee754_logf(x) [L35] float hfsq, f, s, z, R, w, t1, t2, dk; [L36] __int32_t k, ix, i, j; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L42] COND TRUE 0 VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L39] ieee_float_shape_type gf_u; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] - UnprovableResult [Line: 127]: 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: 64]: 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: 55]: 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 1 procedures, 48 locations, 4 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=47occurred 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 18:47:43,441 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_0920b.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 45e9ef0692e3186ad9297b4e869c7d15f1ceee202d872ad29a65efad2e93c077 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 18:47:45,542 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 18:47:45,621 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-02-07 18:47:45,637 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 18:47:45,637 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 18:47:45,660 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 18:47:45,661 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 18:47:45,661 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 18:47:45,661 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 18:47:45,662 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 18:47:45,662 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 18:47:45,662 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 18:47:45,663 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 18:47:45,663 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 18:47:45,663 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 18:47:45,663 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 18:47:45,663 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 18:47:45,663 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 18:47:45,663 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 18:47:45,663 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 18:47:45,663 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 18:47:45,663 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 18:47:45,663 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 18:47:45,663 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-07 18:47:45,663 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-07 18:47:45,663 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-07 18:47:45,663 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 18:47:45,663 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 18:47:45,663 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 18:47:45,663 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 18:47:45,664 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 18:47:45,664 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 18:47:45,664 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 18:47:45,664 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 18:47:45,664 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:47:45,664 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 18:47:45,664 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 18:47:45,664 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 18:47:45,664 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 18:47:45,664 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-07 18:47:45,664 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-07 18:47:45,664 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 18:47:45,664 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 18:47:45,664 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 18:47:45,664 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 18:47:45,664 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 -> 45e9ef0692e3186ad9297b4e869c7d15f1ceee202d872ad29a65efad2e93c077 [2025-02-07 18:47:45,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 18:47:45,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 18:47:45,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 18:47:45,895 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 18:47:45,895 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 18:47:45,896 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0920b.c [2025-02-07 18:47:47,030 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f4bbe069f/e1d7b1d0282c44e8b3551ef021e40036/FLAG9a6dac5d7 [2025-02-07 18:47:47,228 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 18:47:47,232 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0920b.c [2025-02-07 18:47:47,238 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f4bbe069f/e1d7b1d0282c44e8b3551ef021e40036/FLAG9a6dac5d7 [2025-02-07 18:47:47,597 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f4bbe069f/e1d7b1d0282c44e8b3551ef021e40036 [2025-02-07 18:47:47,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 18:47:47,600 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 18:47:47,601 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 18:47:47,601 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 18:47:47,604 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 18:47:47,604 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:47:47" (1/1) ... [2025-02-07 18:47:47,605 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@34991c58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:47, skipping insertion in model container [2025-02-07 18:47:47,605 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:47:47" (1/1) ... [2025-02-07 18:47:47,615 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 18:47:47,762 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_0920b.c[3250,3263] [2025-02-07 18:47:47,765 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:47:47,777 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 18:47:47,818 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_0920b.c[3250,3263] [2025-02-07 18:47:47,818 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:47:47,833 INFO L204 MainTranslator]: Completed translation [2025-02-07 18:47:47,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:47 WrapperNode [2025-02-07 18:47:47,834 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 18:47:47,835 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 18:47:47,835 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 18:47:47,836 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 18:47:47,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:47" (1/1) ... [2025-02-07 18:47:47,848 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:47" (1/1) ... [2025-02-07 18:47:47,872 INFO L138 Inliner]: procedures = 21, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 139 [2025-02-07 18:47:47,873 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 18:47:47,873 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 18:47:47,874 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 18:47:47,874 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 18:47:47,879 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:47" (1/1) ... [2025-02-07 18:47:47,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:47" (1/1) ... [2025-02-07 18:47:47,882 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:47" (1/1) ... [2025-02-07 18:47:47,897 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2025-02-07 18:47:47,900 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:47" (1/1) ... [2025-02-07 18:47:47,900 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:47" (1/1) ... [2025-02-07 18:47:47,910 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:47" (1/1) ... [2025-02-07 18:47:47,915 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:47" (1/1) ... [2025-02-07 18:47:47,916 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:47" (1/1) ... [2025-02-07 18:47:47,917 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:47" (1/1) ... [2025-02-07 18:47:47,923 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 18:47:47,924 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 18:47:47,924 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 18:47:47,924 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 18:47:47,925 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:47" (1/1) ... [2025-02-07 18:47:47,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:47:47,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 18:47:47,954 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 18:47:47,962 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 18:47:47,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 18:47:47,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-07 18:47:47,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-07 18:47:47,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-07 18:47:47,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-02-07 18:47:47,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-07 18:47:47,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2025-02-07 18:47:47,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2025-02-07 18:47:47,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2025-02-07 18:47:47,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2025-02-07 18:47:47,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-07 18:47:47,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-07 18:47:47,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-07 18:47:47,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-02-07 18:47:47,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 18:47:47,979 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 18:47:47,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2025-02-07 18:47:47,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2025-02-07 18:47:47,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2025-02-07 18:47:47,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2025-02-07 18:47:47,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-07 18:47:47,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-02-07 18:47:47,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-02-07 18:47:47,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-02-07 18:47:47,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-07 18:47:48,071 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 18:47:48,073 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 18:48:17,526 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L126: assume 0bv32 == main_#t~ret9#1;havoc main_#t~ret9#1; [2025-02-07 18:48:17,527 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L126: assume !(0bv32 == main_#t~ret9#1);havoc main_#t~ret9#1;main_#res#1 := 0bv32;#t~ret10#1 := main_#res#1;havoc main_#t~ret8#1, main_#t~ret9#1, main_~x~0#1, main_~res~0#1;assume { :end_inline_main } true; [2025-02-07 18:48:17,527 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L127: assume false;main_#res#1 := 1bv32; [2025-02-07 18:48:17,527 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L127: assume !false; [2025-02-07 18:48:17,527 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2025-02-07 18:48:17,527 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L123: main_#t~ret8#1 := __ieee754_logf_#res#1;havoc __ieee754_logf_#t~mem5#1, __ieee754_logf_~#gf_u~1#1.base, __ieee754_logf_~#gf_u~1#1.offset, __ieee754_logf_#t~mem6#1, __ieee754_logf_~#gf_u~2#1.base, __ieee754_logf_~#gf_u~2#1.offset, __ieee754_logf_#t~mem7#1, __ieee754_logf_~#sf_u~0#1.base, __ieee754_logf_~#sf_u~0#1.offset, __ieee754_logf_~x#1, __ieee754_logf_~hfsq~0#1, __ieee754_logf_~f~0#1, __ieee754_logf_~s~0#1, __ieee754_logf_~z~0#1, __ieee754_logf_~R~0#1, __ieee754_logf_~w~0#1, __ieee754_logf_~t1~0#1, __ieee754_logf_~t2~0#1, __ieee754_logf_~dk~0#1, __ieee754_logf_~k~0#1, __ieee754_logf_~ix~1#1, __ieee754_logf_~i~0#1, __ieee754_logf_~j~0#1;havoc __ieee754_logf_#in~x#1;assume { :end_inline___ieee754_logf } true;main_~res~0#1 := main_#t~ret8#1;havoc main_#t~ret8#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~ret9#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 18:48:17,541 INFO L? ?]: Removed 60 outVars from TransFormulas that were not future-live. [2025-02-07 18:48:17,543 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 18:48:17,549 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 18:48:17,551 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 18:48:17,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:48:17 BoogieIcfgContainer [2025-02-07 18:48:17,551 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 18:48:17,553 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 18:48:17,553 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 18:48:17,557 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 18:48:17,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 06:47:47" (1/3) ... [2025-02-07 18:48:17,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79733199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:48:17, skipping insertion in model container [2025-02-07 18:48:17,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:47:47" (2/3) ... [2025-02-07 18:48:17,558 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79733199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:48:17, skipping insertion in model container [2025-02-07 18:48:17,558 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:48:17" (3/3) ... [2025-02-07 18:48:17,559 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920b.c [2025-02-07 18:48:17,569 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 18:48:17,570 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_0920b.c that has 1 procedures, 23 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2025-02-07 18:48:17,622 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 18:48:17,631 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;@7e7a7bda, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 18:48:17,632 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 18:48:17,636 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 21 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 18:48:17,639 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-07 18:48:17,641 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-07 18:48:17,645 INFO L422 BasicCegarLoop]: Path program histogram: [] [2025-02-07 18:48:17,648 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 1.8095238095238095) internal successors, (38), 21 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 18:48:17,660 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 18:48:17,666 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 06:48:17 BoogieIcfgContainer [2025-02-07 18:48:17,667 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 18:48:17,667 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 18:48:17,667 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 18:48:17,668 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 18:48:17,669 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:48:17" (3/4) ... [2025-02-07 18:48:17,670 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-07 18:48:17,675 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2025-02-07 18:48:17,675 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-02-07 18:48:17,675 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-07 18:48:17,675 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-07 18:48:17,726 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-07 18:48:17,727 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-07 18:48:17,727 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 18:48:17,728 INFO L158 Benchmark]: Toolchain (without parser) took 30127.58ms. Allocated memory is still 83.9MB. Free memory was 59.4MB in the beginning and 48.1MB in the end (delta: 11.3MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2025-02-07 18:48:17,728 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 83.9MB. Free memory was 62.2MB in the beginning and 62.2MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:48:17,728 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.68ms. Allocated memory is still 83.9MB. Free memory was 58.7MB in the beginning and 45.4MB in the end (delta: 13.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 18:48:17,728 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.06ms. Allocated memory is still 83.9MB. Free memory was 45.4MB in the beginning and 44.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:48:17,728 INFO L158 Benchmark]: Boogie Preprocessor took 49.83ms. Allocated memory is still 83.9MB. Free memory was 44.0MB in the beginning and 41.2MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:48:17,729 INFO L158 Benchmark]: IcfgBuilder took 29627.35ms. Allocated memory is still 83.9MB. Free memory was 41.2MB in the beginning and 24.5MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 18:48:17,729 INFO L158 Benchmark]: TraceAbstraction took 113.62ms. Allocated memory is still 83.9MB. Free memory was 23.8MB in the beginning and 54.6MB in the end (delta: -30.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:48:17,729 INFO L158 Benchmark]: Witness Printer took 59.54ms. Allocated memory is still 83.9MB. Free memory was 54.0MB in the beginning and 48.1MB in the end (delta: 5.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 18:48:17,730 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 83.9MB. Free memory was 62.2MB in the beginning and 62.2MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 233.68ms. Allocated memory is still 83.9MB. Free memory was 58.7MB in the beginning and 45.4MB in the end (delta: 13.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.06ms. Allocated memory is still 83.9MB. Free memory was 45.4MB in the beginning and 44.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 49.83ms. Allocated memory is still 83.9MB. Free memory was 44.0MB in the beginning and 41.2MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 29627.35ms. Allocated memory is still 83.9MB. Free memory was 41.2MB in the beginning and 24.5MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 113.62ms. Allocated memory is still 83.9MB. Free memory was 23.8MB in the beginning and 54.6MB in the end (delta: -30.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 59.54ms. Allocated memory is still 83.9MB. Free memory was 54.0MB in the beginning and 48.1MB in the end (delta: 5.9MB). Peak memory consumption was 8.4MB. 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: 127]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 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=22occurred 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 18:48:17,811 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