./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1232a.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_1232a.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 6f83584f969f73b8fbd0ee35f3e06725eeb8b2fb54d0ca8487878342f741f280 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 18:49:04,583 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 18:49:04,616 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-07 18:49:04,619 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 18:49:04,619 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 18:49:04,632 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 18:49:04,633 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 18:49:04,633 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 18:49:04,633 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 18:49:04,633 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 18:49:04,633 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 18:49:04,633 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 18:49:04,634 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 18:49:04,634 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 18:49:04,634 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 18:49:04,634 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 18:49:04,634 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 18:49:04,634 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 18:49:04,634 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-07 18:49:04,634 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 18:49:04,634 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 18:49:04,634 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 18:49:04,634 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 18:49:04,634 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 18:49:04,635 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 18:49:04,635 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 18:49:04,635 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 18:49:04,635 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 18:49:04,635 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 18:49:04,635 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 18:49:04,635 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 18:49:04,635 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 18:49:04,635 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:49:04,635 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 18:49:04,635 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 18:49:04,635 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 18:49:04,636 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 18:49:04,636 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-07 18:49:04,636 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-07 18:49:04,636 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 18:49:04,636 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 18:49:04,636 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 18:49:04,636 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 18:49:04,636 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 -> 6f83584f969f73b8fbd0ee35f3e06725eeb8b2fb54d0ca8487878342f741f280 [2025-02-07 18:49:04,837 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 18:49:04,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 18:49:04,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 18:49:04,857 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 18:49:04,857 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 18:49:04,858 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1232a.c [2025-02-07 18:49:05,934 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/81b557101/6ac92b861f554b05a0b91215618914ec/FLAGe109dedd7 [2025-02-07 18:49:06,155 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 18:49:06,160 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1232a.c [2025-02-07 18:49:06,169 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/81b557101/6ac92b861f554b05a0b91215618914ec/FLAGe109dedd7 [2025-02-07 18:49:06,506 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/81b557101/6ac92b861f554b05a0b91215618914ec [2025-02-07 18:49:06,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 18:49:06,509 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 18:49:06,511 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 18:49:06,511 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 18:49:06,518 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 18:49:06,519 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:49:06" (1/1) ... [2025-02-07 18:49:06,519 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31c095b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:06, skipping insertion in model container [2025-02-07 18:49:06,520 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:49:06" (1/1) ... [2025-02-07 18:49:06,529 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 18:49:06,665 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_1232a.c[1656,1669] [2025-02-07 18:49:06,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:49:06,671 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 18:49:06,682 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_1232a.c[1656,1669] [2025-02-07 18:49:06,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:49:06,695 INFO L204 MainTranslator]: Completed translation [2025-02-07 18:49:06,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:06 WrapperNode [2025-02-07 18:49:06,695 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 18:49:06,696 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 18:49:06,696 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 18:49:06,696 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 18:49:06,705 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:06" (1/1) ... [2025-02-07 18:49:06,714 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:06" (1/1) ... [2025-02-07 18:49:06,726 INFO L138 Inliner]: procedures = 18, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2025-02-07 18:49:06,727 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 18:49:06,728 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 18:49:06,728 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 18:49:06,728 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 18:49:06,733 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:06" (1/1) ... [2025-02-07 18:49:06,733 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:06" (1/1) ... [2025-02-07 18:49:06,734 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:06" (1/1) ... [2025-02-07 18:49:06,746 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2025-02-07 18:49:06,747 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:06" (1/1) ... [2025-02-07 18:49:06,748 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:06" (1/1) ... [2025-02-07 18:49:06,751 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:06" (1/1) ... [2025-02-07 18:49:06,752 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:06" (1/1) ... [2025-02-07 18:49:06,752 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:06" (1/1) ... [2025-02-07 18:49:06,753 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:06" (1/1) ... [2025-02-07 18:49:06,754 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 18:49:06,754 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 18:49:06,754 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 18:49:06,754 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 18:49:06,755 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:06" (1/1) ... [2025-02-07 18:49:06,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:49:06,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 18:49:06,784 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-07 18:49:06,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-07 18:49:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 18:49:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-07 18:49:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-07 18:49:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-07 18:49:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-07 18:49:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2025-02-07 18:49:06,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2025-02-07 18:49:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-02-07 18:49:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-02-07 18:49:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2025-02-07 18:49:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 18:49:06,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 18:49:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-07 18:49:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-07 18:49:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-07 18:49:06,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-07 18:49:06,848 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 18:49:06,849 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 18:49:06,973 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L71-1: main_#t~ret9#1 := __signbit_float_#res#1;havoc __signbit_float_#t~mem7#1, __signbit_float_~#gf_u~1#1.base, __signbit_float_~#gf_u~1#1.offset, __signbit_float_~x#1, __signbit_float_~w~1#1;havoc __signbit_float_#in~x#1;assume { :end_inline___signbit_float } true;assume -2147483648 <= main_#t~ret9#1 && main_#t~ret9#1 <= 2147483647;main_#t~short10#1 := 1 == main_#t~ret9#1; [2025-02-07 18:49:06,981 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2025-02-07 18:49:06,982 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 18:49:06,988 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 18:49:06,988 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 18:49:06,988 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:49:06 BoogieIcfgContainer [2025-02-07 18:49:06,991 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 18:49:06,993 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 18:49:06,993 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 18:49:06,997 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 18:49:06,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 06:49:06" (1/3) ... [2025-02-07 18:49:06,998 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74a38b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:49:06, skipping insertion in model container [2025-02-07 18:49:06,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:06" (2/3) ... [2025-02-07 18:49:06,998 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74a38b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:49:06, skipping insertion in model container [2025-02-07 18:49:06,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:49:06" (3/3) ... [2025-02-07 18:49:06,999 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_1232a.c [2025-02-07 18:49:07,009 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 18:49:07,011 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_1232a.c that has 2 procedures, 34 locations, 1 initial locations, 4 loop locations, and 3 error locations. [2025-02-07 18:49:07,047 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 18:49:07,054 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;@17bb92ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 18:49:07,055 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-02-07 18:49:07,057 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 24 states have (on average 1.7083333333333333) internal successors, (41), 30 states have internal predecessors, (41), 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 18:49:07,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-02-07 18:49:07,061 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 18:49:07,061 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-07 18:49:07,061 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __fpclassify_floatErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [__fpclassify_floatErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE] === [2025-02-07 18:49:07,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 18:49:07,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1925645406, now seen corresponding path program 1 times [2025-02-07 18:49:07,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-07 18:49:07,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482279211] [2025-02-07 18:49:07,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 18:49:07,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-07 18:49:07,126 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-07 18:49:07,143 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-07 18:49:07,143 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:49:07,143 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 18:49:07,144 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-07 18:49:07,150 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-07 18:49:07,153 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-07 18:49:07,153 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:49:07,153 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-07 18:49:07,165 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-07 18:49:07,166 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-07 18:49:07,167 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location __fpclassify_floatErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (2 of 3 remaining) [2025-02-07 18:49:07,168 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2025-02-07 18:49:07,169 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 3 remaining) [2025-02-07 18:49:07,169 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-07 18:49:07,172 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-02-07 18:49:07,182 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 18:49:07,184 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 06:49:07 BoogieIcfgContainer [2025-02-07 18:49:07,184 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 18:49:07,184 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 18:49:07,184 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 18:49:07,184 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 18:49:07,186 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:49:06" (3/4) ... [2025-02-07 18:49:07,187 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-02-07 18:49:07,188 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 18:49:07,188 INFO L158 Benchmark]: Toolchain (without parser) took 679.19ms. Allocated memory is still 142.6MB. Free memory was 111.1MB in the beginning and 70.1MB in the end (delta: 41.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-02-07 18:49:07,189 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:49:07,189 INFO L158 Benchmark]: CACSL2BoogieTranslator took 184.92ms. Allocated memory is still 142.6MB. Free memory was 111.1MB in the beginning and 99.5MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 18:49:07,190 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.19ms. Allocated memory is still 142.6MB. Free memory was 99.5MB in the beginning and 98.6MB in the end (delta: 825.5kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:49:07,190 INFO L158 Benchmark]: Boogie Preprocessor took 26.13ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 96.9MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 18:49:07,191 INFO L158 Benchmark]: IcfgBuilder took 237.28ms. Allocated memory is still 142.6MB. Free memory was 96.9MB in the beginning and 82.6MB in the end (delta: 14.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 18:49:07,192 INFO L158 Benchmark]: TraceAbstraction took 191.05ms. Allocated memory is still 142.6MB. Free memory was 82.6MB in the beginning and 70.1MB in the end (delta: 12.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-07 18:49:07,192 INFO L158 Benchmark]: Witness Printer took 3.46ms. Allocated memory is still 142.6MB. Free memory is still 70.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:49:07,193 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 201.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 184.92ms. Allocated memory is still 142.6MB. Free memory was 111.1MB in the beginning and 99.5MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.19ms. Allocated memory is still 142.6MB. Free memory was 99.5MB in the beginning and 98.6MB in the end (delta: 825.5kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.13ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 96.9MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 237.28ms. Allocated memory is still 142.6MB. Free memory was 96.9MB in the beginning and 82.6MB in the end (delta: 14.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 191.05ms. Allocated memory is still 142.6MB. Free memory was 82.6MB in the beginning and 70.1MB in the end (delta: 12.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.46ms. Allocated memory is still 142.6MB. Free memory is still 70.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 18]: 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 18, overapproximation of someUnaryFLOAToperation at line 67. Possible FailurePath: [L66] float x = 0.0f; [L67] float y = -0.0f; [L68] CALL fmin_float(x, y) [L38] CALL __fpclassify_float(x) VAL [\old(x)=0] [L15] __uint32_t w; VAL [\old(x)=0] [L21] COND TRUE 0 VAL [\old(x)=0] [L18] ieee_float_shape_type gf_u; VAL [\old(x)=0] - UnprovableResult [Line: 72]: 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: 50]: 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, 34 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, 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=34occurred 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, 6 NumberOfCodeBlocks, 6 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 18:49:07,210 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_1232a.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 6f83584f969f73b8fbd0ee35f3e06725eeb8b2fb54d0ca8487878342f741f280 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-07 18:49:09,258 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-07 18:49:09,315 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-02-07 18:49:09,319 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-07 18:49:09,322 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-07 18:49:09,357 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-07 18:49:09,358 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-07 18:49:09,358 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-07 18:49:09,358 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-07 18:49:09,359 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-07 18:49:09,359 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-07 18:49:09,359 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-07 18:49:09,359 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-07 18:49:09,359 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-07 18:49:09,359 INFO L153 SettingsManager]: * Use SBE=true [2025-02-07 18:49:09,360 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-07 18:49:09,360 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-07 18:49:09,360 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-07 18:49:09,360 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-07 18:49:09,361 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-07 18:49:09,361 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-07 18:49:09,361 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-07 18:49:09,361 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-07 18:49:09,361 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-07 18:49:09,361 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-07 18:49:09,361 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-07 18:49:09,361 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-07 18:49:09,361 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-07 18:49:09,361 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-07 18:49:09,361 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-07 18:49:09,361 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-07 18:49:09,361 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-07 18:49:09,361 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-07 18:49:09,361 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-07 18:49:09,361 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:49:09,361 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-07 18:49:09,361 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-07 18:49:09,361 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-07 18:49:09,361 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-07 18:49:09,361 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-07 18:49:09,361 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-07 18:49:09,361 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-07 18:49:09,362 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-07 18:49:09,362 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-07 18:49:09,362 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-07 18:49:09,362 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 -> 6f83584f969f73b8fbd0ee35f3e06725eeb8b2fb54d0ca8487878342f741f280 [2025-02-07 18:49:09,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-07 18:49:09,625 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-07 18:49:09,631 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-07 18:49:09,632 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-07 18:49:09,632 INFO L274 PluginConnector]: CDTParser initialized [2025-02-07 18:49:09,633 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1232a.c [2025-02-07 18:49:10,750 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b50215458/ec3b81ac1c2a4a57bf82eed268ccbf78/FLAG1fa939326 [2025-02-07 18:49:10,980 INFO L384 CDTParser]: Found 1 translation units. [2025-02-07 18:49:10,996 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1232a.c [2025-02-07 18:49:11,011 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b50215458/ec3b81ac1c2a4a57bf82eed268ccbf78/FLAG1fa939326 [2025-02-07 18:49:11,028 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/b50215458/ec3b81ac1c2a4a57bf82eed268ccbf78 [2025-02-07 18:49:11,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-07 18:49:11,031 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-07 18:49:11,033 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-07 18:49:11,033 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-07 18:49:11,037 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-07 18:49:11,037 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:49:11" (1/1) ... [2025-02-07 18:49:11,038 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e26ea4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:11, skipping insertion in model container [2025-02-07 18:49:11,038 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.02 06:49:11" (1/1) ... [2025-02-07 18:49:11,050 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-07 18:49:11,162 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_1232a.c[1656,1669] [2025-02-07 18:49:11,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:49:11,172 INFO L200 MainTranslator]: Completed pre-run [2025-02-07 18:49:11,186 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_1232a.c[1656,1669] [2025-02-07 18:49:11,187 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-07 18:49:11,197 INFO L204 MainTranslator]: Completed translation [2025-02-07 18:49:11,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:11 WrapperNode [2025-02-07 18:49:11,199 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-07 18:49:11,200 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-07 18:49:11,200 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-07 18:49:11,201 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-07 18:49:11,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:11" (1/1) ... [2025-02-07 18:49:11,216 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:11" (1/1) ... [2025-02-07 18:49:11,228 INFO L138 Inliner]: procedures = 21, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 60 [2025-02-07 18:49:11,228 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-07 18:49:11,228 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-07 18:49:11,229 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-07 18:49:11,229 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-07 18:49:11,233 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:11" (1/1) ... [2025-02-07 18:49:11,233 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:11" (1/1) ... [2025-02-07 18:49:11,236 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:11" (1/1) ... [2025-02-07 18:49:11,247 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2025-02-07 18:49:11,250 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:11" (1/1) ... [2025-02-07 18:49:11,250 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:11" (1/1) ... [2025-02-07 18:49:11,258 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:11" (1/1) ... [2025-02-07 18:49:11,258 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:11" (1/1) ... [2025-02-07 18:49:11,259 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:11" (1/1) ... [2025-02-07 18:49:11,265 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:11" (1/1) ... [2025-02-07 18:49:11,267 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-07 18:49:11,267 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-07 18:49:11,267 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-07 18:49:11,267 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-07 18:49:11,271 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:11" (1/1) ... [2025-02-07 18:49:11,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-07 18:49:11,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-07 18:49:11,297 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-07 18:49:11,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-07 18:49:11,319 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-07 18:49:11,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-02-07 18:49:11,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-02-07 18:49:11,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-02-07 18:49:11,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-07 18:49:11,320 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2025-02-07 18:49:11,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2025-02-07 18:49:11,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-07 18:49:11,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-02-07 18:49:11,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-02-07 18:49:11,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-07 18:49:11,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-07 18:49:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2025-02-07 18:49:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2025-02-07 18:49:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2025-02-07 18:49:11,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-07 18:49:11,377 INFO L257 CfgBuilder]: Building ICFG [2025-02-07 18:49:11,379 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-07 18:49:11,513 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L71-1: main_#t~ret9#1 := __signbit_float_#res#1;havoc __signbit_float_#t~mem7#1, __signbit_float_~#gf_u~1#1.base, __signbit_float_~#gf_u~1#1.offset, __signbit_float_~x#1, __signbit_float_~w~1#1;havoc __signbit_float_#in~x#1;assume { :end_inline___signbit_float } true;main_#t~short10#1 := 1bv32 == main_#t~ret9#1; [2025-02-07 18:49:11,523 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2025-02-07 18:49:11,523 INFO L308 CfgBuilder]: Performing block encoding [2025-02-07 18:49:11,531 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-07 18:49:11,531 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-07 18:49:11,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:49:11 BoogieIcfgContainer [2025-02-07 18:49:11,531 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-07 18:49:11,532 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-07 18:49:11,532 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-07 18:49:11,540 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-07 18:49:11,540 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.02 06:49:11" (1/3) ... [2025-02-07 18:49:11,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6a592e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:49:11, skipping insertion in model container [2025-02-07 18:49:11,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.02 06:49:11" (2/3) ... [2025-02-07 18:49:11,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e6a592e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.02 06:49:11, skipping insertion in model container [2025-02-07 18:49:11,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:49:11" (3/3) ... [2025-02-07 18:49:11,546 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_1232a.c [2025-02-07 18:49:11,563 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-07 18:49:11,564 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_1232a.c that has 2 procedures, 26 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-02-07 18:49:11,614 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-07 18:49:11,630 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;@561d3cd5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-07 18:49:11,630 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-02-07 18:49:11,638 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 22 states have internal predecessors, (31), 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 18:49:11,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-02-07 18:49:11,646 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 18:49:11,647 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 18:49:11,647 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 18:49:11,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 18:49:11,655 INFO L85 PathProgramCache]: Analyzing trace with hash -129283047, now seen corresponding path program 1 times [2025-02-07 18:49:11,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 18:49:11,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [766384331] [2025-02-07 18:49:11,665 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 18:49:11,665 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-07 18:49:11,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-07 18:49:11,668 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-02-07 18:49:11,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2025-02-07 18:49:11,704 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-02-07 18:49:11,720 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-02-07 18:49:11,720 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:49:11,720 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 18:49:11,722 INFO L256 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-02-07 18:49:11,724 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 18:49:11,737 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-02-07 18:49:11,737 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-07 18:49:11,737 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-07 18:49:11,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [766384331] [2025-02-07 18:49:11,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [766384331] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 18:49:11,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 18:49:11,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-07 18:49:11,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725005076] [2025-02-07 18:49:11,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 18:49:11,741 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-07 18:49:11,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-07 18:49:11,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-07 18:49:11,751 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 18:49:11,752 INFO L87 Difference]: Start difference. First operand has 26 states, 18 states have (on average 1.7222222222222223) internal successors, (31), 22 states have internal predecessors, (31), 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) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-07 18:49:11,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 18:49:11,761 INFO L93 Difference]: Finished difference Result 49 states and 69 transitions. [2025-02-07 18:49:11,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-07 18:49:11,762 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2025-02-07 18:49:11,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 18:49:11,765 INFO L225 Difference]: With dead ends: 49 [2025-02-07 18:49:11,765 INFO L226 Difference]: Without dead ends: 18 [2025-02-07 18:49:11,766 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-07 18:49:11,768 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-07 18:49:11,768 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-07 18:49:11,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2025-02-07 18:49:11,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2025-02-07 18:49:11,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 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 18:49:11,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2025-02-07 18:49:11,786 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 18 [2025-02-07 18:49:11,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 18:49:11,787 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2025-02-07 18:49:11,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2025-02-07 18:49:11,787 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2025-02-07 18:49:11,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-02-07 18:49:11,788 INFO L210 NwaCegarLoop]: Found error trace [2025-02-07 18:49:11,788 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-07 18:49:11,792 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2025-02-07 18:49:11,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-07 18:49:11,991 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-07 18:49:11,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-07 18:49:11,991 INFO L85 PathProgramCache]: Analyzing trace with hash -677797077, now seen corresponding path program 1 times [2025-02-07 18:49:11,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-07 18:49:11,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [42350748] [2025-02-07 18:49:11,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-07 18:49:11,992 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-07 18:49:11,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-02-07 18:49:11,995 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-02-07 18:49:11,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2025-02-07 18:49:12,057 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-02-07 18:49:12,085 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-02-07 18:49:12,085 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-07 18:49:12,086 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-07 18:49:12,087 INFO L256 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-02-07 18:49:12,090 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-07 18:49:12,151 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-02-07 18:49:12,151 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-07 18:49:12,152 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-07 18:49:12,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [42350748] [2025-02-07 18:49:12,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [42350748] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-07 18:49:12,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-07 18:49:12,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-07 18:49:12,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333522478] [2025-02-07 18:49:12,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-07 18:49:12,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-07 18:49:12,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-07 18:49:12,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-07 18:49:12,154 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 18:49:12,154 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-07 18:49:12,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-07 18:49:12,162 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2025-02-07 18:49:12,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-07 18:49:12,163 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2025-02-07 18:49:12,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-07 18:49:12,163 INFO L225 Difference]: With dead ends: 18 [2025-02-07 18:49:12,163 INFO L226 Difference]: Without dead ends: 0 [2025-02-07 18:49:12,163 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-07 18:49:12,164 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-07 18:49:12,164 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-07 18:49:12,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-02-07 18:49:12,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-02-07 18:49:12,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-07 18:49:12,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-02-07 18:49:12,165 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2025-02-07 18:49:12,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-07 18:49:12,165 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-02-07 18:49:12,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2025-02-07 18:49:12,165 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-02-07 18:49:12,166 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-02-07 18:49:12,167 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-02-07 18:49:12,172 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2025-02-07 18:49:12,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-02-07 18:49:12,374 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-02-07 18:49:12,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-02-07 18:49:12,395 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-07 18:49:12,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.02 06:49:12 BoogieIcfgContainer [2025-02-07 18:49:12,401 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-07 18:49:12,402 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-07 18:49:12,402 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-07 18:49:12,402 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-07 18:49:12,402 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 07.02 06:49:11" (3/4) ... [2025-02-07 18:49:12,404 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-07 18:49:12,406 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure __fpclassify_float [2025-02-07 18:49:12,408 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2025-02-07 18:49:12,408 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-02-07 18:49:12,409 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-02-07 18:49:12,409 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-07 18:49:12,452 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-07 18:49:12,453 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-07 18:49:12,453 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-07 18:49:12,453 INFO L158 Benchmark]: Toolchain (without parser) took 1422.41ms. Allocated memory is still 117.4MB. Free memory was 91.3MB in the beginning and 71.3MB in the end (delta: 20.0MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2025-02-07 18:49:12,454 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:49:12,454 INFO L158 Benchmark]: CACSL2BoogieTranslator took 166.87ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 79.0MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 18:49:12,455 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.11ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 77.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:49:12,455 INFO L158 Benchmark]: Boogie Preprocessor took 38.25ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 76.2MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 18:49:12,455 INFO L158 Benchmark]: IcfgBuilder took 263.86ms. Allocated memory is still 117.4MB. Free memory was 76.0MB in the beginning and 61.9MB in the end (delta: 14.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 18:49:12,457 INFO L158 Benchmark]: TraceAbstraction took 869.01ms. Allocated memory is still 117.4MB. Free memory was 61.5MB in the beginning and 77.6MB in the end (delta: -16.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-07 18:49:12,457 INFO L158 Benchmark]: Witness Printer took 51.03ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 71.3MB in the end (delta: 6.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-07 18:49:12,458 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 166.87ms. Allocated memory is still 117.4MB. Free memory was 91.1MB in the beginning and 79.0MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.11ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 77.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.25ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 76.2MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 263.86ms. Allocated memory is still 117.4MB. Free memory was 76.0MB in the beginning and 61.9MB in the end (delta: 14.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 869.01ms. Allocated memory is still 117.4MB. Free memory was 61.5MB in the beginning and 77.6MB in the end (delta: -16.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 51.03ms. Allocated memory is still 117.4MB. Free memory was 77.6MB in the beginning and 71.3MB in the end (delta: 6.2MB). 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: 72]: 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, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 79 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 31 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 48 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 1 NumberOfNonLiveVariables, 130 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 11/11 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-07 18:49:12,472 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