./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1270d.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1270d.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 38626a16356f67aaf09cedb2585feb986fe72ed23b75358e37f00f94c56ef8f0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 12:04:34,288 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 12:04:34,341 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 12:04:34,345 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 12:04:34,347 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 12:04:34,369 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 12:04:34,370 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 12:04:34,370 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 12:04:34,371 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 12:04:34,371 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 12:04:34,372 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 12:04:34,372 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 12:04:34,372 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 12:04:34,372 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 12:04:34,372 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 12:04:34,373 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 12:04:34,373 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 12:04:34,373 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 12:04:34,373 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 12:04:34,373 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 12:04:34,373 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 12:04:34,374 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 12:04:34,374 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 12:04:34,374 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 12:04:34,374 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 12:04:34,374 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 12:04:34,374 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 12:04:34,374 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 12:04:34,374 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 12:04:34,374 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 12:04:34,374 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 12:04:34,375 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 12:04:34,375 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 12:04:34,375 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 12:04:34,375 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 12:04:34,375 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 12:04:34,375 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 12:04:34,376 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 12:04:34,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 12:04:34,376 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 12:04:34,376 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 12:04:34,376 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 12:04:34,376 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 12:04:34,376 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/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 -> 38626a16356f67aaf09cedb2585feb986fe72ed23b75358e37f00f94c56ef8f0 [2025-03-03 12:04:34,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 12:04:34,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 12:04:34,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 12:04:34,625 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 12:04:34,625 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 12:04:34,626 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1270d.c [2025-03-03 12:04:35,825 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efa2b5311/8322e7a4b7ac4c92aaa7b84c42e2f9fe/FLAG6bf227265 [2025-03-03 12:04:36,066 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 12:04:36,071 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270d.c [2025-03-03 12:04:36,089 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efa2b5311/8322e7a4b7ac4c92aaa7b84c42e2f9fe/FLAG6bf227265 [2025-03-03 12:04:36,408 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efa2b5311/8322e7a4b7ac4c92aaa7b84c42e2f9fe [2025-03-03 12:04:36,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 12:04:36,411 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 12:04:36,412 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 12:04:36,412 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 12:04:36,415 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 12:04:36,415 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 12:04:36" (1/1) ... [2025-03-03 12:04:36,416 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4831f149 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:36, skipping insertion in model container [2025-03-03 12:04:36,416 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 12:04:36" (1/1) ... [2025-03-03 12:04:36,430 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 12:04:36,555 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270d.c[4704,4717] [2025-03-03 12:04:36,557 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 12:04:36,565 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 12:04:36,600 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270d.c[4704,4717] [2025-03-03 12:04:36,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 12:04:36,610 INFO L204 MainTranslator]: Completed translation [2025-03-03 12:04:36,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:36 WrapperNode [2025-03-03 12:04:36,611 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 12:04:36,611 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 12:04:36,612 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 12:04:36,612 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 12:04:36,616 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:36" (1/1) ... [2025-03-03 12:04:36,626 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:36" (1/1) ... [2025-03-03 12:04:36,644 INFO L138 Inliner]: procedures = 18, calls = 75, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 282 [2025-03-03 12:04:36,645 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 12:04:36,645 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 12:04:36,645 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 12:04:36,645 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 12:04:36,653 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:36" (1/1) ... [2025-03-03 12:04:36,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:36" (1/1) ... [2025-03-03 12:04:36,661 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:36" (1/1) ... [2025-03-03 12:04:36,686 INFO L175 MemorySlicer]: Split 34 memory accesses to 17 slices as follows [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2]. 6 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. The 16 writes are split as follows [0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. [2025-03-03 12:04:36,686 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:36" (1/1) ... [2025-03-03 12:04:36,686 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:36" (1/1) ... [2025-03-03 12:04:36,696 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:36" (1/1) ... [2025-03-03 12:04:36,698 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:36" (1/1) ... [2025-03-03 12:04:36,700 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:36" (1/1) ... [2025-03-03 12:04:36,701 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:36" (1/1) ... [2025-03-03 12:04:36,704 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 12:04:36,705 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 12:04:36,705 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 12:04:36,705 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 12:04:36,706 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:36" (1/1) ... [2025-03-03 12:04:36,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 12:04:36,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 12:04:36,734 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-03 12:04:36,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-03 12:04:36,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 12:04:36,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 12:04:36,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-03 12:04:36,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-03 12:04:36,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-03 12:04:36,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-03 12:04:36,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-03 12:04:36,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-03 12:04:36,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-03 12:04:36,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-03 12:04:36,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-03-03 12:04:36,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-03-03 12:04:36,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-03-03 12:04:36,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-03-03 12:04:36,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-03-03 12:04:36,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-03-03 12:04:36,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-03-03 12:04:36,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-03-03 12:04:36,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-03 12:04:36,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-03-03 12:04:36,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-03-03 12:04:36,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-03-03 12:04:36,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-03-03 12:04:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-03-03 12:04:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-03-03 12:04:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-03-03 12:04:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-03-03 12:04:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2025-03-03 12:04:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2025-03-03 12:04:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2025-03-03 12:04:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2025-03-03 12:04:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2025-03-03 12:04:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#13 [2025-03-03 12:04:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#14 [2025-03-03 12:04:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#15 [2025-03-03 12:04:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#16 [2025-03-03 12:04:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-03 12:04:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-03 12:04:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-03 12:04:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-03 12:04:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-03 12:04:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-03 12:04:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-03 12:04:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-03 12:04:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-03-03 12:04:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-03-03 12:04:36,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-03-03 12:04:36,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-03-03 12:04:36,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-03-03 12:04:36,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-03-03 12:04:36,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-03-03 12:04:36,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-03-03 12:04:36,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-03-03 12:04:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-03-03 12:04:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-03-03 12:04:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2025-03-03 12:04:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2025-03-03 12:04:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2025-03-03 12:04:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2025-03-03 12:04:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2025-03-03 12:04:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2025-03-03 12:04:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2025-03-03 12:04:36,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2025-03-03 12:04:36,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2025-03-03 12:04:36,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2025-03-03 12:04:36,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#12 [2025-03-03 12:04:36,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#13 [2025-03-03 12:04:36,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#14 [2025-03-03 12:04:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#15 [2025-03-03 12:04:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#16 [2025-03-03 12:04:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 12:04:36,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 12:04:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-03 12:04:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-03 12:04:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-03 12:04:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-03 12:04:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-03 12:04:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-03 12:04:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-03 12:04:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-03 12:04:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-03-03 12:04:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-03-03 12:04:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-03-03 12:04:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-03-03 12:04:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-03-03 12:04:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-03-03 12:04:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-03-03 12:04:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-03-03 12:04:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-03-03 12:04:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-03 12:04:36,763 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2025-03-03 12:04:36,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2025-03-03 12:04:36,917 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 12:04:36,918 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 12:04:37,142 INFO L? ?]: Removed 55 outVars from TransFormulas that were not future-live. [2025-03-03 12:04:37,142 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 12:04:37,155 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 12:04:37,156 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 12:04:37,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 12:04:37 BoogieIcfgContainer [2025-03-03 12:04:37,156 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 12:04:37,158 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 12:04:37,158 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 12:04:37,162 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 12:04:37,162 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 12:04:36" (1/3) ... [2025-03-03 12:04:37,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@290eb691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 12:04:37, skipping insertion in model container [2025-03-03 12:04:37,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:36" (2/3) ... [2025-03-03 12:04:37,163 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@290eb691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 12:04:37, skipping insertion in model container [2025-03-03 12:04:37,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 12:04:37" (3/3) ... [2025-03-03 12:04:37,164 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270d.c [2025-03-03 12:04:37,174 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 12:04:37,179 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_1270d.c that has 2 procedures, 111 locations, 1 initial locations, 18 loop locations, and 17 error locations. [2025-03-03 12:04:37,227 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 12:04:37,236 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;@413eca6f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 12:04:37,236 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2025-03-03 12:04:37,241 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 90 states have (on average 2.033333333333333) internal successors, (183), 107 states have internal predecessors, (183), 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) [2025-03-03 12:04:37,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-03-03 12:04:37,245 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 12:04:37,246 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-03-03 12:04:37,246 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [__ieee754_sqrtfErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, __ieee754_sqrtfErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 14 more)] === [2025-03-03 12:04:37,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 12:04:37,250 INFO L85 PathProgramCache]: Analyzing trace with hash 231336, now seen corresponding path program 1 times [2025-03-03 12:04:37,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 12:04:37,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118332509] [2025-03-03 12:04:37,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 12:04:37,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 12:04:37,318 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-03 12:04:37,329 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-03 12:04:37,330 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 12:04:37,330 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 12:04:37,330 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-03 12:04:37,335 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-03 12:04:37,341 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-03 12:04:37,343 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 12:04:37,343 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 12:04:37,362 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-03 12:04:37,363 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-03 12:04:37,364 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONUNSUPPORTED_FEATURE (16 of 17 remaining) [2025-03-03 12:04:37,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (15 of 17 remaining) [2025-03-03 12:04:37,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (14 of 17 remaining) [2025-03-03 12:04:37,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (13 of 17 remaining) [2025-03-03 12:04:37,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (12 of 17 remaining) [2025-03-03 12:04:37,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (11 of 17 remaining) [2025-03-03 12:04:37,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONUNSUPPORTED_FEATURE (10 of 17 remaining) [2025-03-03 12:04:37,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONUNSUPPORTED_FEATURE (9 of 17 remaining) [2025-03-03 12:04:37,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONUNSUPPORTED_FEATURE (8 of 17 remaining) [2025-03-03 12:04:37,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONUNSUPPORTED_FEATURE (7 of 17 remaining) [2025-03-03 12:04:37,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONUNSUPPORTED_FEATURE (6 of 17 remaining) [2025-03-03 12:04:37,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONUNSUPPORTED_FEATURE (5 of 17 remaining) [2025-03-03 12:04:37,368 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONUNSUPPORTED_FEATURE (4 of 17 remaining) [2025-03-03 12:04:37,369 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONUNSUPPORTED_FEATURE (3 of 17 remaining) [2025-03-03 12:04:37,370 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONUNSUPPORTED_FEATURE (2 of 17 remaining) [2025-03-03 12:04:37,370 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONUNSUPPORTED_FEATURE (1 of 17 remaining) [2025-03-03 12:04:37,370 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 17 remaining) [2025-03-03 12:04:37,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 12:04:37,375 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-03 12:04:37,389 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-03 12:04:37,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 12:04:37 BoogieIcfgContainer [2025-03-03 12:04:37,395 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-03 12:04:37,396 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-03 12:04:37,396 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-03 12:04:37,397 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-03 12:04:37,397 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 12:04:37" (3/4) ... [2025-03-03 12:04:37,401 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-03 12:04:37,401 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-03 12:04:37,402 INFO L158 Benchmark]: Toolchain (without parser) took 991.46ms. Allocated memory is still 167.8MB. Free memory was 122.9MB in the beginning and 62.2MB in the end (delta: 60.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-03-03 12:04:37,403 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 201.3MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 12:04:37,403 INFO L158 Benchmark]: CACSL2BoogieTranslator took 199.28ms. Allocated memory is still 167.8MB. Free memory was 122.9MB in the beginning and 109.0MB in the end (delta: 13.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 12:04:37,404 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.36ms. Allocated memory is still 167.8MB. Free memory was 109.0MB in the beginning and 107.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 12:04:37,405 INFO L158 Benchmark]: Boogie Preprocessor took 59.41ms. Allocated memory is still 167.8MB. Free memory was 107.1MB in the beginning and 103.2MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 12:04:37,405 INFO L158 Benchmark]: IcfgBuilder took 451.17ms. Allocated memory is still 167.8MB. Free memory was 103.2MB in the beginning and 77.0MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-03 12:04:37,405 INFO L158 Benchmark]: TraceAbstraction took 236.95ms. Allocated memory is still 167.8MB. Free memory was 76.5MB in the beginning and 62.2MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-03 12:04:37,406 INFO L158 Benchmark]: Witness Printer took 5.28ms. Allocated memory is still 167.8MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 12:04:37,407 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 201.3MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 199.28ms. Allocated memory is still 167.8MB. Free memory was 122.9MB in the beginning and 109.0MB in the end (delta: 13.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.36ms. Allocated memory is still 167.8MB. Free memory was 109.0MB in the beginning and 107.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 59.41ms. Allocated memory is still 167.8MB. Free memory was 107.1MB in the beginning and 103.2MB in the end (delta: 3.9MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 451.17ms. Allocated memory is still 167.8MB. Free memory was 103.2MB in the beginning and 77.0MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 236.95ms. Allocated memory is still 167.8MB. Free memory was 76.5MB in the beginning and 62.2MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.28ms. Allocated memory is still 167.8MB. Free memory is still 62.2MB. 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: 88]: 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 88, overapproximation of someBinaryArithmeticFLOAToperation at line 232. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L231] float x = __VERIFIER_nondet_float(); [L232] float y = -1.0f / 0.0f; [L233] CALL __ieee754_hypotf(x, y) [L84] float a = x, b = y, t1, t2, y1, y2, w; [L85] __int32_t j, k, ha, hb; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=54, y=53] [L88] ieee_float_shape_type gf_u; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=54, y=53] - UnprovableResult [Line: 76]: 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: 22]: 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: 236]: 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: 216]: 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: 203]: 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: 179]: 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: 194]: 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: 188]: 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: 152]: 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: 169]: 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: 164]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 142]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 137]: 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: 115]: 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: 110]: 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: 94]: 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, 111 locations, 17 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=111occurred 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, 3 NumberOfCodeBlocks, 3 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 [2025-03-03 12:04:37,423 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1270d.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 38626a16356f67aaf09cedb2585feb986fe72ed23b75358e37f00f94c56ef8f0 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 12:04:39,275 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 12:04:39,363 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-03 12:04:39,369 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 12:04:39,370 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 12:04:39,393 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 12:04:39,394 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 12:04:39,394 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 12:04:39,394 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 12:04:39,394 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 12:04:39,395 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 12:04:39,395 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 12:04:39,395 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 12:04:39,395 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 12:04:39,395 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 12:04:39,395 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 12:04:39,395 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 12:04:39,395 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 12:04:39,396 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 12:04:39,396 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 12:04:39,396 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 12:04:39,396 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 12:04:39,396 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 12:04:39,396 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-03 12:04:39,396 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-03 12:04:39,396 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-03 12:04:39,397 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 12:04:39,397 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 12:04:39,397 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 12:04:39,397 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 12:04:39,397 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 12:04:39,397 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 12:04:39,397 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 12:04:39,397 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 12:04:39,397 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 12:04:39,397 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 12:04:39,397 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 12:04:39,397 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 12:04:39,397 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 12:04:39,398 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-03 12:04:39,398 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-03 12:04:39,398 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 12:04:39,398 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 12:04:39,398 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 12:04:39,398 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 12:04:39,398 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/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 -> 38626a16356f67aaf09cedb2585feb986fe72ed23b75358e37f00f94c56ef8f0 [2025-03-03 12:04:39,667 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 12:04:39,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 12:04:39,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 12:04:39,676 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 12:04:39,676 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 12:04:39,677 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1270d.c [2025-03-03 12:04:40,818 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d79f1061/4f52f9f474a04cc0b2307fda51a98459/FLAG1d651d8aa [2025-03-03 12:04:41,055 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 12:04:41,056 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270d.c [2025-03-03 12:04:41,068 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d79f1061/4f52f9f474a04cc0b2307fda51a98459/FLAG1d651d8aa [2025-03-03 12:04:41,086 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d79f1061/4f52f9f474a04cc0b2307fda51a98459 [2025-03-03 12:04:41,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 12:04:41,090 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 12:04:41,092 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 12:04:41,092 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 12:04:41,095 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 12:04:41,096 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 12:04:41" (1/1) ... [2025-03-03 12:04:41,097 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@124d7066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:41, skipping insertion in model container [2025-03-03 12:04:41,097 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 12:04:41" (1/1) ... [2025-03-03 12:04:41,118 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 12:04:41,288 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270d.c[4704,4717] [2025-03-03 12:04:41,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 12:04:41,304 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 12:04:41,343 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270d.c[4704,4717] [2025-03-03 12:04:41,344 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 12:04:41,361 INFO L204 MainTranslator]: Completed translation [2025-03-03 12:04:41,362 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:41 WrapperNode [2025-03-03 12:04:41,362 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 12:04:41,363 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 12:04:41,363 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 12:04:41,363 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 12:04:41,368 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:41" (1/1) ... [2025-03-03 12:04:41,380 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:41" (1/1) ... [2025-03-03 12:04:41,404 INFO L138 Inliner]: procedures = 21, calls = 75, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 254 [2025-03-03 12:04:41,407 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 12:04:41,408 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 12:04:41,408 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 12:04:41,408 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 12:04:41,413 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:41" (1/1) ... [2025-03-03 12:04:41,414 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:41" (1/1) ... [2025-03-03 12:04:41,422 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:41" (1/1) ... [2025-03-03 12:04:41,445 INFO L175 MemorySlicer]: Split 34 memory accesses to 17 slices as follows [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2]. 6 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. The 16 writes are split as follows [0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]. [2025-03-03 12:04:41,448 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:41" (1/1) ... [2025-03-03 12:04:41,448 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:41" (1/1) ... [2025-03-03 12:04:41,469 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:41" (1/1) ... [2025-03-03 12:04:41,473 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:41" (1/1) ... [2025-03-03 12:04:41,476 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:41" (1/1) ... [2025-03-03 12:04:41,481 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:41" (1/1) ... [2025-03-03 12:04:41,490 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 12:04:41,491 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 12:04:41,494 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 12:04:41,494 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 12:04:41,495 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:41" (1/1) ... [2025-03-03 12:04:41,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 12:04:41,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 12:04:41,524 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-03 12:04:41,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-03 12:04:41,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 12:04:41,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-03 12:04:41,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-03 12:04:41,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-03 12:04:41,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-03-03 12:04:41,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2025-03-03 12:04:41,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2025-03-03 12:04:41,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2025-03-03 12:04:41,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2025-03-03 12:04:41,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2025-03-03 12:04:41,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2025-03-03 12:04:41,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2025-03-03 12:04:41,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2025-03-03 12:04:41,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2025-03-03 12:04:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2025-03-03 12:04:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2025-03-03 12:04:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2025-03-03 12:04:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2025-03-03 12:04:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-03 12:04:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2025-03-03 12:04:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2025-03-03 12:04:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2025-03-03 12:04:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2025-03-03 12:04:41,552 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2025-03-03 12:04:41,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2025-03-03 12:04:41,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2025-03-03 12:04:41,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2025-03-03 12:04:41,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2025-03-03 12:04:41,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2025-03-03 12:04:41,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2025-03-03 12:04:41,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2025-03-03 12:04:41,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#12 [2025-03-03 12:04:41,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#13 [2025-03-03 12:04:41,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#14 [2025-03-03 12:04:41,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#15 [2025-03-03 12:04:41,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#16 [2025-03-03 12:04:41,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-03 12:04:41,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-03 12:04:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-03 12:04:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-03-03 12:04:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2025-03-03 12:04:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2025-03-03 12:04:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2025-03-03 12:04:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2025-03-03 12:04:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2025-03-03 12:04:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2025-03-03 12:04:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2025-03-03 12:04:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2025-03-03 12:04:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2025-03-03 12:04:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#13 [2025-03-03 12:04:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#14 [2025-03-03 12:04:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#15 [2025-03-03 12:04:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#16 [2025-03-03 12:04:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 12:04:41,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 12:04:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2025-03-03 12:04:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2025-03-03 12:04:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2025-03-03 12:04:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2025-03-03 12:04:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2025-03-03 12:04:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2025-03-03 12:04:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2025-03-03 12:04:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2025-03-03 12:04:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2025-03-03 12:04:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2025-03-03 12:04:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2025-03-03 12:04:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2025-03-03 12:04:41,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#12 [2025-03-03 12:04:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#13 [2025-03-03 12:04:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#14 [2025-03-03 12:04:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#15 [2025-03-03 12:04:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#16 [2025-03-03 12:04:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-03 12:04:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-03 12:04:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-03 12:04:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-03-03 12:04:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2025-03-03 12:04:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2025-03-03 12:04:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2025-03-03 12:04:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2025-03-03 12:04:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2025-03-03 12:04:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2025-03-03 12:04:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2025-03-03 12:04:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2025-03-03 12:04:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#12 [2025-03-03 12:04:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#13 [2025-03-03 12:04:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#14 [2025-03-03 12:04:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#15 [2025-03-03 12:04:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#16 [2025-03-03 12:04:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-03 12:04:41,556 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2025-03-03 12:04:41,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2025-03-03 12:04:41,733 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 12:04:41,734 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 12:04:43,535 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2025-03-03 12:04:43,535 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 12:04:43,542 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 12:04:43,542 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 12:04:43,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 12:04:43 BoogieIcfgContainer [2025-03-03 12:04:43,543 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 12:04:43,545 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 12:04:43,545 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 12:04:43,548 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 12:04:43,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 12:04:41" (1/3) ... [2025-03-03 12:04:43,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@510176ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 12:04:43, skipping insertion in model container [2025-03-03 12:04:43,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:04:41" (2/3) ... [2025-03-03 12:04:43,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@510176ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 12:04:43, skipping insertion in model container [2025-03-03 12:04:43,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 12:04:43" (3/3) ... [2025-03-03 12:04:43,550 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270d.c [2025-03-03 12:04:43,561 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 12:04:43,562 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_1270d.c that has 2 procedures, 87 locations, 1 initial locations, 18 loop locations, and 1 error locations. [2025-03-03 12:04:43,603 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 12:04:43,611 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;@49dd7d00, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 12:04:43,611 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 12:04:43,614 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 82 states have (on average 1.6829268292682926) internal successors, (138), 83 states have internal predecessors, (138), 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) [2025-03-03 12:04:43,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-03-03 12:04:43,640 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 12:04:43,641 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 12:04:43,641 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 12:04:43,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 12:04:43,645 INFO L85 PathProgramCache]: Analyzing trace with hash 1574267789, now seen corresponding path program 1 times [2025-03-03 12:04:43,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 12:04:43,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1951959471] [2025-03-03 12:04:43,652 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 12:04:43,653 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 [2025-03-03 12:04:43,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-03 12:04:43,655 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/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) [2025-03-03 12:04:43,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2025-03-03 12:04:43,764 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-03 12:04:43,827 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-03 12:04:43,828 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 12:04:43,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 12:04:43,832 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-03 12:04:43,835 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 12:04:43,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 12:04:43,854 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 12:04:43,855 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-03 12:04:43,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1951959471] [2025-03-03 12:04:43,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1951959471] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 12:04:43,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 12:04:43,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 12:04:43,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908933526] [2025-03-03 12:04:43,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 12:04:43,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-03 12:04:43,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-03 12:04:43,875 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-03 12:04:43,876 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 12:04:43,877 INFO L87 Difference]: Start difference. First operand has 87 states, 82 states have (on average 1.6829268292682926) internal successors, (138), 83 states have internal predecessors, (138), 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 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2025-03-03 12:04:43,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 12:04:43,895 INFO L93 Difference]: Finished difference Result 172 states and 284 transitions. [2025-03-03 12:04:43,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-03 12:04:43,896 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2025-03-03 12:04:43,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 12:04:43,901 INFO L225 Difference]: With dead ends: 172 [2025-03-03 12:04:43,902 INFO L226 Difference]: Without dead ends: 84 [2025-03-03 12:04:43,906 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 12:04:43,909 INFO L435 NwaCegarLoop]: 109 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, 109 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 [2025-03-03 12:04:43,911 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 12:04:43,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2025-03-03 12:04:43,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2025-03-03 12:04:43,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 80 states have (on average 1.275) internal successors, (102), 80 states have internal predecessors, (102), 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) [2025-03-03 12:04:43,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 106 transitions. [2025-03-03 12:04:43,943 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 106 transitions. Word has length 16 [2025-03-03 12:04:43,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 12:04:43,943 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 106 transitions. [2025-03-03 12:04:43,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2025-03-03 12:04:43,944 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 106 transitions. [2025-03-03 12:04:43,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-03-03 12:04:43,944 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 12:04:43,944 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 12:04:43,951 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2025-03-03 12:04:44,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/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 [2025-03-03 12:04:44,145 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 12:04:44,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 12:04:44,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1310660930, now seen corresponding path program 1 times [2025-03-03 12:04:44,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 12:04:44,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1862122890] [2025-03-03 12:04:44,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 12:04:44,147 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 [2025-03-03 12:04:44,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-03 12:04:44,150 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/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) [2025-03-03 12:04:44,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/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 [2025-03-03 12:04:44,225 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-03-03 12:04:44,307 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-03-03 12:04:44,307 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 12:04:44,307 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 12:04:44,312 INFO L256 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 34 conjuncts are in the unsatisfiable core [2025-03-03 12:04:44,316 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 12:04:44,480 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-03 12:04:44,487 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 19 [2025-03-03 12:04:47,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 12:04:47,631 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 12:04:47,631 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-03 12:04:47,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1862122890] [2025-03-03 12:04:47,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1862122890] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 12:04:47,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 12:04:47,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2025-03-03 12:04:47,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504473793] [2025-03-03 12:04:47,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 12:04:47,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-03-03 12:04:47,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-03 12:04:47,632 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-03-03 12:04:47,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2025-03-03 12:04:47,633 INFO L87 Difference]: Start difference. First operand 84 states and 106 transitions. Second operand has 15 states, 15 states have (on average 1.4) internal successors, (21), 14 states have internal predecessors, (21), 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) [2025-03-03 12:05:02,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-03 12:05:06,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-03 12:05:10,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-03 12:05:14,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.61s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-03 12:05:19,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-03 12:05:23,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-03 12:05:27,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-03 12:05:31,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-03 12:05:35,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-03 12:05:39,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-03 12:05:43,655 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-03 12:05:47,658 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-03 12:05:51,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-03 12:05:55,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-03 12:05:59,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-03 12:06:03,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-03 12:06:09,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-03-03 12:06:13,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-03-03 12:06:17,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]