./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 35bac483b91a5ef1ca7e770e0d3fb7ad4f1fb6725ed9e57de7011eda6b44423e --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 01:22:57,212 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 01:22:57,287 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 01:22:57,294 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 01:22:57,298 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 01:22:57,319 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 01:22:57,320 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 01:22:57,320 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 01:22:57,320 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 01:22:57,320 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 01:22:57,320 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 01:22:57,320 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 01:22:57,321 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 01:22:57,321 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 01:22:57,321 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 01:22:57,321 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 01:22:57,321 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 01:22:57,321 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 01:22:57,321 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 01:22:57,321 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 01:22:57,321 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 01:22:57,321 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 01:22:57,322 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 01:22:57,322 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 01:22:57,322 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 01:22:57,322 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 01:22:57,322 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 01:22:57,322 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 01:22:57,322 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 01:22:57,322 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:22:57,322 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:22:57,323 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:22:57,323 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:22:57,323 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 01:22:57,323 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:22:57,323 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:22:57,323 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:22:57,323 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:22:57,323 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 01:22:57,323 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 01:22:57,323 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 01:22:57,323 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 01:22:57,323 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 01:22:57,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 01:22:57,324 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 01:22:57,324 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 01:22:57,324 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 01:22:57,324 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 01:22:57,324 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35bac483b91a5ef1ca7e770e0d3fb7ad4f1fb6725ed9e57de7011eda6b44423e [2025-01-09 01:22:57,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 01:22:57,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 01:22:57,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 01:22:57,618 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 01:22:57,618 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 01:22:57,619 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c [2025-01-09 01:22:58,940 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/19a1478f5/93daefd4e3964914bf8c172345c0f87f/FLAG31882aa8c [2025-01-09 01:22:59,192 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 01:22:59,193 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c [2025-01-09 01:22:59,201 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/19a1478f5/93daefd4e3964914bf8c172345c0f87f/FLAG31882aa8c [2025-01-09 01:22:59,212 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/19a1478f5/93daefd4e3964914bf8c172345c0f87f [2025-01-09 01:22:59,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 01:22:59,215 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 01:22:59,216 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 01:22:59,216 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 01:22:59,220 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 01:22:59,221 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:22:59" (1/1) ... [2025-01-09 01:22:59,222 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f7597c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:59, skipping insertion in model container [2025-01-09 01:22:59,222 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:22:59" (1/1) ... [2025-01-09 01:22:59,242 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 01:22:59,461 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c[4704,4717] [2025-01-09 01:22:59,464 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:22:59,474 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 01:22:59,532 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c[4704,4717] [2025-01-09 01:22:59,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:22:59,549 INFO L204 MainTranslator]: Completed translation [2025-01-09 01:22:59,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:59 WrapperNode [2025-01-09 01:22:59,552 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 01:22:59,553 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 01:22:59,553 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 01:22:59,553 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 01:22:59,558 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:59" (1/1) ... [2025-01-09 01:22:59,569 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:59" (1/1) ... [2025-01-09 01:22:59,597 INFO L138 Inliner]: procedures = 18, calls = 75, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 282 [2025-01-09 01:22:59,598 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 01:22:59,598 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 01:22:59,598 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 01:22:59,598 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 01:22:59,605 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:59" (1/1) ... [2025-01-09 01:22:59,606 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:59" (1/1) ... [2025-01-09 01:22:59,612 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:59" (1/1) ... [2025-01-09 01:22:59,636 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]. [2025-01-09 01:22:59,637 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:59" (1/1) ... [2025-01-09 01:22:59,637 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:59" (1/1) ... [2025-01-09 01:22:59,652 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:59" (1/1) ... [2025-01-09 01:22:59,653 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:59" (1/1) ... [2025-01-09 01:22:59,664 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:59" (1/1) ... [2025-01-09 01:22:59,667 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:59" (1/1) ... [2025-01-09 01:22:59,669 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:59" (1/1) ... [2025-01-09 01:22:59,673 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 01:22:59,674 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 01:22:59,674 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 01:22:59,674 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 01:22:59,676 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:59" (1/1) ... [2025-01-09 01:22:59,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:22:59,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 01:22:59,709 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 01:22:59,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 01:22:59,734 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 01:22:59,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 01:22:59,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 01:22:59,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 01:22:59,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 01:22:59,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 01:22:59,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 01:22:59,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 01:22:59,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 01:22:59,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-01-09 01:22:59,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-01-09 01:22:59,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-01-09 01:22:59,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-01-09 01:22:59,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-01-09 01:22:59,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-01-09 01:22:59,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-01-09 01:22:59,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-01-09 01:22:59,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-01-09 01:22:59,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 01:22:59,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-01-09 01:22:59,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-01-09 01:22:59,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-01-09 01:22:59,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-01-09 01:22:59,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-01-09 01:22:59,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-01-09 01:22:59,738 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2025-01-09 01:22:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2025-01-09 01:22:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2025-01-09 01:22:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#9 [2025-01-09 01:22:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#10 [2025-01-09 01:22:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#11 [2025-01-09 01:22:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#12 [2025-01-09 01:22:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#13 [2025-01-09 01:22:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#14 [2025-01-09 01:22:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#15 [2025-01-09 01:22:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#16 [2025-01-09 01:22:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 01:22:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 01:22:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 01:22:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 01:22:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-01-09 01:22:59,739 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-01-09 01:22:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-01-09 01:22:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-01-09 01:22:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-01-09 01:22:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2025-01-09 01:22:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2025-01-09 01:22:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2025-01-09 01:22:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2025-01-09 01:22:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2025-01-09 01:22:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2025-01-09 01:22:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2025-01-09 01:22:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2025-01-09 01:22:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-01-09 01:22:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-01-09 01:22:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2025-01-09 01:22:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2025-01-09 01:22:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2025-01-09 01:22:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2025-01-09 01:22:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2025-01-09 01:22:59,740 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2025-01-09 01:22:59,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2025-01-09 01:22:59,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#9 [2025-01-09 01:22:59,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#10 [2025-01-09 01:22:59,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#11 [2025-01-09 01:22:59,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#12 [2025-01-09 01:22:59,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#13 [2025-01-09 01:22:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#14 [2025-01-09 01:22:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#15 [2025-01-09 01:22:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#16 [2025-01-09 01:22:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 01:22:59,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 01:22:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 01:22:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 01:22:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 01:22:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 01:22:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-01-09 01:22:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-01-09 01:22:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-01-09 01:22:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-01-09 01:22:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-01-09 01:22:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2025-01-09 01:22:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2025-01-09 01:22:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2025-01-09 01:22:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2025-01-09 01:22:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2025-01-09 01:22:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2025-01-09 01:22:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2025-01-09 01:22:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2025-01-09 01:22:59,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 01:22:59,745 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2025-01-09 01:22:59,745 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2025-01-09 01:22:59,933 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 01:22:59,934 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 01:23:00,310 INFO L? ?]: Removed 55 outVars from TransFormulas that were not future-live. [2025-01-09 01:23:00,310 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 01:23:00,326 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 01:23:00,327 INFO L312 CfgBuilder]: Removed 33 assume(true) statements. [2025-01-09 01:23:00,328 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:23:00 BoogieIcfgContainer [2025-01-09 01:23:00,328 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 01:23:00,330 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 01:23:00,330 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 01:23:00,335 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 01:23:00,336 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 01:22:59" (1/3) ... [2025-01-09 01:23:00,337 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4557856d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:23:00, skipping insertion in model container [2025-01-09 01:23:00,338 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:59" (2/3) ... [2025-01-09 01:23:00,338 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4557856d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:23:00, skipping insertion in model container [2025-01-09 01:23:00,339 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:23:00" (3/3) ... [2025-01-09 01:23:00,340 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270b.c [2025-01-09 01:23:00,355 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 01:23:00,356 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_1270b.c that has 2 procedures, 128 locations, 1 initial locations, 34 loop locations, and 17 error locations. [2025-01-09 01:23:00,423 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 01:23:00,436 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;@77268b7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 01:23:00,437 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2025-01-09 01:23:00,442 INFO L276 IsEmpty]: Start isEmpty. Operand has 128 states, 107 states have (on average 1.8691588785046729) internal successors, (200), 124 states have internal predecessors, (200), 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) [2025-01-09 01:23:00,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-01-09 01:23:00,447 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:23:00,447 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-01-09 01:23:00,448 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [__ieee754_sqrtfErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, __ieee754_sqrtfErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 14 more)] === [2025-01-09 01:23:00,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:23:00,455 INFO L85 PathProgramCache]: Analyzing trace with hash 5204614, now seen corresponding path program 1 times [2025-01-09 01:23:00,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 01:23:00,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475463289] [2025-01-09 01:23:00,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:23:00,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 01:23:00,533 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 01:23:00,547 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 01:23:00,549 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:23:00,549 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 01:23:00,549 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 01:23:00,556 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 01:23:00,562 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 01:23:00,564 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:23:00,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 01:23:00,587 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 01:23:00,589 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 01:23:00,590 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (16 of 17 remaining) [2025-01-09 01:23:00,592 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (15 of 17 remaining) [2025-01-09 01:23:00,592 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location __ieee754_sqrtfErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (14 of 17 remaining) [2025-01-09 01:23:00,592 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (13 of 17 remaining) [2025-01-09 01:23:00,593 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (12 of 17 remaining) [2025-01-09 01:23:00,593 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONUNSUPPORTED_FEATURE (11 of 17 remaining) [2025-01-09 01:23:00,593 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONUNSUPPORTED_FEATURE (10 of 17 remaining) [2025-01-09 01:23:00,594 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONUNSUPPORTED_FEATURE (9 of 17 remaining) [2025-01-09 01:23:00,594 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONUNSUPPORTED_FEATURE (8 of 17 remaining) [2025-01-09 01:23:00,594 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONUNSUPPORTED_FEATURE (7 of 17 remaining) [2025-01-09 01:23:00,594 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONUNSUPPORTED_FEATURE (6 of 17 remaining) [2025-01-09 01:23:00,594 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONUNSUPPORTED_FEATURE (5 of 17 remaining) [2025-01-09 01:23:00,594 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONUNSUPPORTED_FEATURE (4 of 17 remaining) [2025-01-09 01:23:00,594 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONUNSUPPORTED_FEATURE (3 of 17 remaining) [2025-01-09 01:23:00,594 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONUNSUPPORTED_FEATURE (2 of 17 remaining) [2025-01-09 01:23:00,594 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONUNSUPPORTED_FEATURE (1 of 17 remaining) [2025-01-09 01:23:00,594 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (0 of 17 remaining) [2025-01-09 01:23:00,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 01:23:00,598 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-01-09 01:23:00,611 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 01:23:00,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 01:23:00 BoogieIcfgContainer [2025-01-09 01:23:00,614 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 01:23:00,614 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 01:23:00,614 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 01:23:00,614 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 01:23:00,615 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:23:00" (3/4) ... [2025-01-09 01:23:00,617 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 01:23:00,618 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 01:23:00,619 INFO L158 Benchmark]: Toolchain (without parser) took 1403.88ms. Allocated memory is still 142.6MB. Free memory was 112.8MB in the beginning and 52.0MB in the end (delta: 60.7MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-01-09 01:23:00,619 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:23:00,620 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.76ms. Allocated memory is still 142.6MB. Free memory was 112.8MB in the beginning and 98.4MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 01:23:00,620 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.06ms. Allocated memory is still 142.6MB. Free memory was 98.4MB in the beginning and 96.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:23:00,621 INFO L158 Benchmark]: Boogie Preprocessor took 75.21ms. Allocated memory is still 142.6MB. Free memory was 96.4MB in the beginning and 91.9MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:23:00,623 INFO L158 Benchmark]: RCFGBuilder took 653.85ms. Allocated memory is still 142.6MB. Free memory was 91.9MB in the beginning and 67.1MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-09 01:23:00,623 INFO L158 Benchmark]: TraceAbstraction took 283.92ms. Allocated memory is still 142.6MB. Free memory was 66.1MB in the beginning and 52.0MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 01:23:00,623 INFO L158 Benchmark]: Witness Printer took 3.79ms. Allocated memory is still 142.6MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:23:00,624 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 335.76ms. Allocated memory is still 142.6MB. Free memory was 112.8MB in the beginning and 98.4MB in the end (delta: 14.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.06ms. Allocated memory is still 142.6MB. Free memory was 98.4MB in the beginning and 96.4MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 75.21ms. Allocated memory is still 142.6MB. Free memory was 96.4MB in the beginning and 91.9MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 653.85ms. Allocated memory is still 142.6MB. Free memory was 91.9MB in the beginning and 67.1MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 283.92ms. Allocated memory is still 142.6MB. Free memory was 66.1MB in the beginning and 52.0MB in the end (delta: 14.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.79ms. Allocated memory is still 142.6MB. Free memory is still 52.0MB. 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 231. 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 = -1.0f / 0.0f; [L232] float y = __VERIFIER_nondet_float(); [L234] 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: 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: 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: 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. - 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 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: 237]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 128 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=128occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-01-09 01:23:00,647 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 35bac483b91a5ef1ca7e770e0d3fb7ad4f1fb6725ed9e57de7011eda6b44423e --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 01:23:02,902 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 01:23:02,990 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 01:23:02,998 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 01:23:02,999 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 01:23:03,030 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 01:23:03,031 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 01:23:03,031 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 01:23:03,031 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 01:23:03,031 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 01:23:03,031 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 01:23:03,031 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 01:23:03,032 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 01:23:03,032 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 01:23:03,032 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 01:23:03,032 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 01:23:03,032 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 01:23:03,032 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 01:23:03,032 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 01:23:03,032 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 01:23:03,032 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 01:23:03,032 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 01:23:03,032 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 01:23:03,034 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 01:23:03,034 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 01:23:03,034 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 01:23:03,034 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 01:23:03,035 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 01:23:03,035 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 01:23:03,035 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 01:23:03,035 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 01:23:03,035 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:23:03,035 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:23:03,035 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:23:03,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:23:03,035 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 01:23:03,035 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:23:03,035 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:23:03,035 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:23:03,035 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:23:03,036 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 01:23:03,036 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 01:23:03,036 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 01:23:03,036 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 01:23:03,036 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 01:23:03,036 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 01:23:03,036 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 01:23:03,036 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 01:23:03,036 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 01:23:03,036 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 01:23:03,036 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35bac483b91a5ef1ca7e770e0d3fb7ad4f1fb6725ed9e57de7011eda6b44423e [2025-01-09 01:23:03,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 01:23:03,319 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 01:23:03,322 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 01:23:03,323 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 01:23:03,323 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 01:23:03,324 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c [2025-01-09 01:23:04,702 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1d159ac28/a1c5fa26078d41b9b4977680ca091c69/FLAGa0387be96 [2025-01-09 01:23:04,964 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 01:23:04,965 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c [2025-01-09 01:23:04,975 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1d159ac28/a1c5fa26078d41b9b4977680ca091c69/FLAGa0387be96 [2025-01-09 01:23:05,284 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1d159ac28/a1c5fa26078d41b9b4977680ca091c69 [2025-01-09 01:23:05,287 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 01:23:05,288 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 01:23:05,292 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 01:23:05,292 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 01:23:05,297 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 01:23:05,298 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:23:05" (1/1) ... [2025-01-09 01:23:05,299 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad452b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:23:05, skipping insertion in model container [2025-01-09 01:23:05,299 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:23:05" (1/1) ... [2025-01-09 01:23:05,318 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 01:23:05,514 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c[4704,4717] [2025-01-09 01:23:05,517 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:23:05,533 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 01:23:05,599 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c[4704,4717] [2025-01-09 01:23:05,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:23:05,619 INFO L204 MainTranslator]: Completed translation [2025-01-09 01:23:05,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:23:05 WrapperNode [2025-01-09 01:23:05,622 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 01:23:05,623 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 01:23:05,623 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 01:23:05,623 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 01:23:05,631 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:23:05" (1/1) ... [2025-01-09 01:23:05,646 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:23:05" (1/1) ... [2025-01-09 01:23:05,681 INFO L138 Inliner]: procedures = 21, calls = 75, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 254 [2025-01-09 01:23:05,685 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 01:23:05,686 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 01:23:05,686 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 01:23:05,686 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 01:23:05,695 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:23:05" (1/1) ... [2025-01-09 01:23:05,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:23:05" (1/1) ... [2025-01-09 01:23:05,703 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:23:05" (1/1) ... [2025-01-09 01:23:05,733 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]. [2025-01-09 01:23:05,733 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:23:05" (1/1) ... [2025-01-09 01:23:05,733 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:23:05" (1/1) ... [2025-01-09 01:23:05,757 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:23:05" (1/1) ... [2025-01-09 01:23:05,762 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:23:05" (1/1) ... [2025-01-09 01:23:05,775 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:23:05" (1/1) ... [2025-01-09 01:23:05,778 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:23:05" (1/1) ... [2025-01-09 01:23:05,785 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:23:05" (1/1) ... [2025-01-09 01:23:05,793 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 01:23:05,799 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 01:23:05,799 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 01:23:05,799 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 01:23:05,800 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:23:05" (1/1) ... [2025-01-09 01:23:05,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:23:05,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 01:23:05,837 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 01:23:05,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 01:23:05,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 01:23:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 01:23:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-09 01:23:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-01-09 01:23:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-01-09 01:23:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2025-01-09 01:23:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2025-01-09 01:23:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2025-01-09 01:23:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2025-01-09 01:23:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2025-01-09 01:23:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2025-01-09 01:23:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2025-01-09 01:23:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#11 [2025-01-09 01:23:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#12 [2025-01-09 01:23:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#13 [2025-01-09 01:23:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#14 [2025-01-09 01:23:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#15 [2025-01-09 01:23:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#16 [2025-01-09 01:23:05,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 01:23:05,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2025-01-09 01:23:05,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2025-01-09 01:23:05,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2025-01-09 01:23:05,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2025-01-09 01:23:05,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2025-01-09 01:23:05,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2025-01-09 01:23:05,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2025-01-09 01:23:05,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2025-01-09 01:23:05,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2025-01-09 01:23:05,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2025-01-09 01:23:05,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2025-01-09 01:23:05,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#11 [2025-01-09 01:23:05,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#12 [2025-01-09 01:23:05,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#13 [2025-01-09 01:23:05,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#14 [2025-01-09 01:23:05,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#15 [2025-01-09 01:23:05,870 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#16 [2025-01-09 01:23:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-01-09 01:23:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-01-09 01:23:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-01-09 01:23:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-01-09 01:23:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2025-01-09 01:23:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2025-01-09 01:23:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2025-01-09 01:23:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2025-01-09 01:23:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2025-01-09 01:23:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2025-01-09 01:23:05,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2025-01-09 01:23:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#11 [2025-01-09 01:23:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#12 [2025-01-09 01:23:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#13 [2025-01-09 01:23:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#14 [2025-01-09 01:23:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#15 [2025-01-09 01:23:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#16 [2025-01-09 01:23:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 01:23:05,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 01:23:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2025-01-09 01:23:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2025-01-09 01:23:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2025-01-09 01:23:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2025-01-09 01:23:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2025-01-09 01:23:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2025-01-09 01:23:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2025-01-09 01:23:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2025-01-09 01:23:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2025-01-09 01:23:05,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2025-01-09 01:23:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2025-01-09 01:23:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#11 [2025-01-09 01:23:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#12 [2025-01-09 01:23:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#13 [2025-01-09 01:23:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#14 [2025-01-09 01:23:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#15 [2025-01-09 01:23:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#16 [2025-01-09 01:23:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-01-09 01:23:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-01-09 01:23:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-01-09 01:23:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-01-09 01:23:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2025-01-09 01:23:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2025-01-09 01:23:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2025-01-09 01:23:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2025-01-09 01:23:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2025-01-09 01:23:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2025-01-09 01:23:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2025-01-09 01:23:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#11 [2025-01-09 01:23:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#12 [2025-01-09 01:23:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#13 [2025-01-09 01:23:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#14 [2025-01-09 01:23:05,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#15 [2025-01-09 01:23:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#16 [2025-01-09 01:23:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 01:23:05,874 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2025-01-09 01:23:05,874 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2025-01-09 01:23:06,040 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 01:23:06,042 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 01:23:08,821 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2025-01-09 01:23:08,821 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 01:23:08,831 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 01:23:08,831 INFO L312 CfgBuilder]: Removed 16 assume(true) statements. [2025-01-09 01:23:08,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:23:08 BoogieIcfgContainer [2025-01-09 01:23:08,832 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 01:23:08,834 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 01:23:08,835 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 01:23:08,839 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 01:23:08,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 01:23:05" (1/3) ... [2025-01-09 01:23:08,839 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f6d7779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:23:08, skipping insertion in model container [2025-01-09 01:23:08,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:23:05" (2/3) ... [2025-01-09 01:23:08,840 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f6d7779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:23:08, skipping insertion in model container [2025-01-09 01:23:08,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:23:08" (3/3) ... [2025-01-09 01:23:08,841 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270b.c [2025-01-09 01:23:08,855 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 01:23:08,857 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_1270b.c that has 2 procedures, 87 locations, 1 initial locations, 18 loop locations, and 1 error locations. [2025-01-09 01:23:08,906 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 01:23:08,916 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;@87e8ba9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 01:23:08,916 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 01:23:08,921 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) [2025-01-09 01:23:08,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2025-01-09 01:23:08,944 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:23:08,945 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:23:08,945 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:23:08,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:23:08,950 INFO L85 PathProgramCache]: Analyzing trace with hash 36951526, now seen corresponding path program 1 times [2025-01-09 01:23:08,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:23:08,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [549176422] [2025-01-09 01:23:08,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:23:08,962 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 [2025-01-09 01:23:08,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:23:08,967 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-01-09 01:23:08,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2025-01-09 01:23:09,077 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-01-09 01:23:09,142 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-01-09 01:23:09,142 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:23:09,142 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:23:09,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 01:23:09,148 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:23:09,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 01:23:09,162 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:23:09,162 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:23:09,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [549176422] [2025-01-09 01:23:09,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [549176422] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:23:09,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:23:09,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 01:23:09,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688465112] [2025-01-09 01:23:09,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:23:09,172 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 01:23:09,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:23:09,188 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 01:23:09,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 01:23:09,193 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) [2025-01-09 01:23:09,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:23:09,214 INFO L93 Difference]: Finished difference Result 172 states and 284 transitions. [2025-01-09 01:23:09,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 01:23:09,215 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 [2025-01-09 01:23:09,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:23:09,220 INFO L225 Difference]: With dead ends: 172 [2025-01-09 01:23:09,220 INFO L226 Difference]: Without dead ends: 84 [2025-01-09 01:23:09,223 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 [2025-01-09 01:23:09,225 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 [2025-01-09 01:23:09,226 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] [2025-01-09 01:23:09,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2025-01-09 01:23:09,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2025-01-09 01:23:09,252 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) [2025-01-09 01:23:09,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 106 transitions. [2025-01-09 01:23:09,258 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 106 transitions. Word has length 16 [2025-01-09 01:23:09,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:23:09,258 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 106 transitions. [2025-01-09 01:23:09,258 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) [2025-01-09 01:23:09,258 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 106 transitions. [2025-01-09 01:23:09,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2025-01-09 01:23:09,259 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:23:09,259 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] [2025-01-09 01:23:09,267 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2025-01-09 01:23:09,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:23:09,464 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:23:09,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:23:09,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1540368234, now seen corresponding path program 1 times [2025-01-09 01:23:09,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:23:09,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [137018466] [2025-01-09 01:23:09,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:23:09,466 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 [2025-01-09 01:23:09,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:23:09,468 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-01-09 01:23:09,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2025-01-09 01:23:09,570 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 21 statements into 1 equivalence classes. [2025-01-09 01:23:09,672 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 21 of 21 statements. [2025-01-09 01:23:09,673 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:23:09,673 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:23:09,683 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 32 conjuncts are in the unsatisfiable core [2025-01-09 01:23:09,688 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:23:13,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 01:23:13,918 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:23:13,918 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:23:13,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [137018466] [2025-01-09 01:23:13,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [137018466] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:23:13,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:23:13,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2025-01-09 01:23:13,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314102749] [2025-01-09 01:23:13,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:23:13,920 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2025-01-09 01:23:13,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:23:13,920 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2025-01-09 01:23:13,920 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2025-01-09 01:23:13,921 INFO L87 Difference]: Start difference. First operand 84 states and 106 transitions. Second operand has 14 states, 14 states have (on average 1.5) internal successors, (21), 13 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) [2025-01-09 01:23:20,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-01-09 01:23:27,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-01-09 01:23:31,539 WARN L539 Checker$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 [] [2025-01-09 01:23:35,545 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 01:23:39,548 WARN L539 Checker$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] [2025-01-09 01:23:43,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-01-09 01:23:47,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 01:23:49,296 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-01-09 01:23:53,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-01-09 01:23:57,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 01:24:01,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 01:24:05,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-01-09 01:24:10,004 WARN L539 Checker$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] [2025-01-09 01:24:14,010 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 01:24:18,013 WARN L539 Checker$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] [2025-01-09 01:24:22,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-01-09 01:24:26,025 WARN L539 Checker$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] [2025-01-09 01:24:30,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 01:24:34,032 WARN L539 Checker$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] [2025-01-09 01:24:38,762 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers []