./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1011a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1011a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 112da6a04a0d664888b974e6cf0a74d18962a27911b7e3a27346d25064b3da05 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 12:03:11,060 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 12:03:11,111 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 12:03:11,116 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 12:03:11,116 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 12:03:11,145 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 12:03:11,150 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 12:03:11,150 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 12:03:11,150 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 12:03:11,150 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 12:03:11,150 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 12:03:11,150 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 12:03:11,150 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 12:03:11,151 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 12:03:11,151 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 12:03:11,151 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 12:03:11,151 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 12:03:11,151 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 12:03:11,151 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 12:03:11,151 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 12:03:11,151 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 12:03:11,151 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 12:03:11,151 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 12:03:11,151 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 12:03:11,151 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 12:03:11,151 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 12:03:11,151 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 12:03:11,151 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 12:03:11,151 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 12:03:11,151 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 12:03:11,152 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 12:03:11,152 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 12:03:11,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 12:03:11,152 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 12:03:11,152 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 12:03:11,152 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 12:03:11,152 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 12:03:11,152 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 12:03:11,152 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 12:03:11,152 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 12:03:11,152 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 12:03:11,152 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 12:03:11,154 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 12:03:11,154 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 112da6a04a0d664888b974e6cf0a74d18962a27911b7e3a27346d25064b3da05 [2025-03-03 12:03:11,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 12:03:11,369 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 12:03:11,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 12:03:11,372 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 12:03:11,372 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 12:03:11,373 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1011a.c [2025-03-03 12:03:12,475 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1328cdb86/01f567ffc4d24e0181f2bd6345015d54/FLAG8163e9f8b [2025-03-03 12:03:12,725 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 12:03:12,726 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1011a.c [2025-03-03 12:03:12,731 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1328cdb86/01f567ffc4d24e0181f2bd6345015d54/FLAG8163e9f8b [2025-03-03 12:03:13,044 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1328cdb86/01f567ffc4d24e0181f2bd6345015d54 [2025-03-03 12:03:13,046 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 12:03:13,047 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 12:03:13,048 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 12:03:13,049 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 12:03:13,053 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 12:03:13,054 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 12:03:13" (1/1) ... [2025-03-03 12:03:13,056 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6809d3f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:13, skipping insertion in model container [2025-03-03 12:03:13,056 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 12:03:13" (1/1) ... [2025-03-03 12:03:13,064 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 12:03:13,163 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1011a.c[1145,1158] [2025-03-03 12:03:13,165 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 12:03:13,171 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 12:03:13,185 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1011a.c[1145,1158] [2025-03-03 12:03:13,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 12:03:13,197 INFO L204 MainTranslator]: Completed translation [2025-03-03 12:03:13,197 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:13 WrapperNode [2025-03-03 12:03:13,198 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 12:03:13,199 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 12:03:13,199 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 12:03:13,199 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 12:03:13,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:13" (1/1) ... [2025-03-03 12:03:13,210 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:13" (1/1) ... [2025-03-03 12:03:13,220 INFO L138 Inliner]: procedures = 17, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 75 [2025-03-03 12:03:13,221 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 12:03:13,221 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 12:03:13,221 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 12:03:13,222 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 12:03:13,226 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:13" (1/1) ... [2025-03-03 12:03:13,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:13" (1/1) ... [2025-03-03 12:03:13,227 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:13" (1/1) ... [2025-03-03 12:03:13,234 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2025-03-03 12:03:13,235 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:13" (1/1) ... [2025-03-03 12:03:13,235 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:13" (1/1) ... [2025-03-03 12:03:13,239 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:13" (1/1) ... [2025-03-03 12:03:13,239 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:13" (1/1) ... [2025-03-03 12:03:13,240 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:13" (1/1) ... [2025-03-03 12:03:13,240 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:13" (1/1) ... [2025-03-03 12:03:13,242 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 12:03:13,242 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 12:03:13,242 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 12:03:13,242 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 12:03:13,243 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:13" (1/1) ... [2025-03-03 12:03:13,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 12:03:13,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 12:03:13,265 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-03 12:03:13,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-03 12:03:13,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 12:03:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 12:03:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-03 12:03:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-03 12:03:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-03 12:03:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-03 12:03:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-03-03 12:03:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-03-03 12:03:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-03-03 12:03:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-03-03 12:03:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-03 12:03:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-03 12:03:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-03 12:03:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-03 12:03:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-03-03 12:03:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-03-03 12:03:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2025-03-03 12:03:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2025-03-03 12:03:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 12:03:13,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 12:03:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-03 12:03:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-03 12:03:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-03 12:03:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-03 12:03:13,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-03 12:03:13,359 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 12:03:13,360 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 12:03:13,436 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2025-03-03 12:03:13,437 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 12:03:13,442 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 12:03:13,443 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 12:03:13,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 12:03:13 BoogieIcfgContainer [2025-03-03 12:03:13,443 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 12:03:13,445 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 12:03:13,445 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 12:03:13,448 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 12:03:13,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 12:03:13" (1/3) ... [2025-03-03 12:03:13,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f900df7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 12:03:13, skipping insertion in model container [2025-03-03 12:03:13,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:13" (2/3) ... [2025-03-03 12:03:13,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f900df7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 12:03:13, skipping insertion in model container [2025-03-03 12:03:13,450 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 12:03:13" (3/3) ... [2025-03-03 12:03:13,450 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_1011a.c [2025-03-03 12:03:13,460 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 12:03:13,461 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_1011a.c that has 1 procedures, 22 locations, 1 initial locations, 3 loop locations, and 4 error locations. [2025-03-03 12:03:13,494 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 12:03:13,501 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;@7692f98f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 12:03:13,501 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-03 12:03:13,505 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 17 states have (on average 1.8823529411764706) internal successors, (32), 21 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 12:03:13,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-03-03 12:03:13,509 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 12:03:13,509 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-03-03 12:03:13,510 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 1 more)] === [2025-03-03 12:03:13,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 12:03:13,514 INFO L85 PathProgramCache]: Analyzing trace with hash 65505, now seen corresponding path program 1 times [2025-03-03 12:03:13,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 12:03:13,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198611795] [2025-03-03 12:03:13,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 12:03:13,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 12:03:13,574 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-03 12:03:13,583 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-03 12:03:13,584 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 12:03:13,584 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 12:03:13,585 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-03 12:03:13,590 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-03 12:03:13,593 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-03 12:03:13,594 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 12:03:13,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-03 12:03:13,608 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-03 12:03:13,610 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-03 12:03:13,611 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONUNSUPPORTED_FEATURE (3 of 4 remaining) [2025-03-03 12:03:13,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2025-03-03 12:03:13,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (1 of 4 remaining) [2025-03-03 12:03:13,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 4 remaining) [2025-03-03 12:03:13,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 12:03:13,616 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-03 12:03:13,627 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-03 12:03:13,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 12:03:13 BoogieIcfgContainer [2025-03-03 12:03:13,631 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-03 12:03:13,632 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-03 12:03:13,632 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-03 12:03:13,632 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-03 12:03:13,632 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 12:03:13" (3/4) ... [2025-03-03 12:03:13,634 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-03 12:03:13,635 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-03 12:03:13,636 INFO L158 Benchmark]: Toolchain (without parser) took 588.82ms. Allocated memory is still 142.6MB. Free memory was 112.1MB in the beginning and 73.5MB in the end (delta: 38.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-03 12:03:13,636 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 201.3MB. Free memory is still 124.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 12:03:13,637 INFO L158 Benchmark]: CACSL2BoogieTranslator took 150.37ms. Allocated memory is still 142.6MB. Free memory was 111.6MB in the beginning and 100.5MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 12:03:13,637 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.68ms. Allocated memory is still 142.6MB. Free memory was 100.5MB in the beginning and 99.6MB in the end (delta: 944.7kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 12:03:13,638 INFO L158 Benchmark]: Boogie Preprocessor took 20.29ms. Allocated memory is still 142.6MB. Free memory was 99.6MB in the beginning and 97.7MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 12:03:13,638 INFO L158 Benchmark]: IcfgBuilder took 201.00ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 85.6MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 12:03:13,639 INFO L158 Benchmark]: TraceAbstraction took 186.45ms. Allocated memory is still 142.6MB. Free memory was 85.1MB in the beginning and 73.5MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 12:03:13,639 INFO L158 Benchmark]: Witness Printer took 3.93ms. Allocated memory is still 142.6MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 12:03:13,641 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53ms. Allocated memory is still 201.3MB. Free memory is still 124.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 150.37ms. Allocated memory is still 142.6MB. Free memory was 111.6MB in the beginning and 100.5MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.68ms. Allocated memory is still 142.6MB. Free memory was 100.5MB in the beginning and 99.6MB in the end (delta: 944.7kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 20.29ms. Allocated memory is still 142.6MB. Free memory was 99.6MB in the beginning and 97.7MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 201.00ms. Allocated memory is still 142.6MB. Free memory was 97.7MB in the beginning and 85.6MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 186.45ms. Allocated memory is still 142.6MB. Free memory was 85.1MB in the beginning and 73.5MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 3.93ms. Allocated memory is still 142.6MB. Free memory is still 73.5MB. 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: 17]: 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 17. Possible FailurePath: [L47] float x = 0.0f; [L48] CALL fabs_float(x) [L15] __uint32_t ix; VAL [x=0] [L17] ieee_float_shape_type gf_u; VAL [x=0] - UnprovableResult [Line: 52]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 33]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 22]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-03 12:03:13,655 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1011a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 112da6a04a0d664888b974e6cf0a74d18962a27911b7e3a27346d25064b3da05 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 12:03:15,456 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 12:03:15,522 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-03 12:03:15,530 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 12:03:15,536 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 12:03:15,559 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 12:03:15,560 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 12:03:15,560 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 12:03:15,560 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 12:03:15,561 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 12:03:15,561 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 12:03:15,561 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 12:03:15,562 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 12:03:15,562 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 12:03:15,562 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 12:03:15,562 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 12:03:15,562 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 12:03:15,562 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 12:03:15,562 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 12:03:15,562 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 12:03:15,562 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 12:03:15,562 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 12:03:15,562 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 12:03:15,562 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-03 12:03:15,562 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-03 12:03:15,562 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-03 12:03:15,562 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 12:03:15,562 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 12:03:15,563 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 12:03:15,563 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 12:03:15,563 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 12:03:15,563 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 12:03:15,563 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 12:03:15,563 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 12:03:15,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 12:03:15,563 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 12:03:15,563 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 12:03:15,563 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 12:03:15,563 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 12:03:15,563 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-03 12:03:15,563 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-03 12:03:15,563 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 12:03:15,564 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 12:03:15,564 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 12:03:15,564 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 12:03:15,564 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 112da6a04a0d664888b974e6cf0a74d18962a27911b7e3a27346d25064b3da05 [2025-03-03 12:03:15,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 12:03:15,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 12:03:15,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 12:03:15,817 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 12:03:15,818 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 12:03:15,818 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1011a.c [2025-03-03 12:03:16,972 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9abdfded5/a91ef4e39889408bbb633b4fb5ed91bc/FLAG437be8e78 [2025-03-03 12:03:17,150 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 12:03:17,150 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1011a.c [2025-03-03 12:03:17,157 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9abdfded5/a91ef4e39889408bbb633b4fb5ed91bc/FLAG437be8e78 [2025-03-03 12:03:17,172 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9abdfded5/a91ef4e39889408bbb633b4fb5ed91bc [2025-03-03 12:03:17,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 12:03:17,178 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 12:03:17,179 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 12:03:17,179 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 12:03:17,182 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 12:03:17,184 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 12:03:17" (1/1) ... [2025-03-03 12:03:17,186 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52e9e37d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:17, skipping insertion in model container [2025-03-03 12:03:17,186 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 12:03:17" (1/1) ... [2025-03-03 12:03:17,195 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 12:03:17,321 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1011a.c[1145,1158] [2025-03-03 12:03:17,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 12:03:17,334 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 12:03:17,350 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1011a.c[1145,1158] [2025-03-03 12:03:17,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 12:03:17,368 INFO L204 MainTranslator]: Completed translation [2025-03-03 12:03:17,369 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:17 WrapperNode [2025-03-03 12:03:17,370 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 12:03:17,371 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 12:03:17,371 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 12:03:17,371 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 12:03:17,376 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:17" (1/1) ... [2025-03-03 12:03:17,381 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:17" (1/1) ... [2025-03-03 12:03:17,392 INFO L138 Inliner]: procedures = 20, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 69 [2025-03-03 12:03:17,393 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 12:03:17,393 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 12:03:17,393 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 12:03:17,394 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 12:03:17,398 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:17" (1/1) ... [2025-03-03 12:03:17,399 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:17" (1/1) ... [2025-03-03 12:03:17,402 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:17" (1/1) ... [2025-03-03 12:03:17,410 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2025-03-03 12:03:17,410 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:17" (1/1) ... [2025-03-03 12:03:17,410 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:17" (1/1) ... [2025-03-03 12:03:17,417 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:17" (1/1) ... [2025-03-03 12:03:17,418 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:17" (1/1) ... [2025-03-03 12:03:17,419 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:17" (1/1) ... [2025-03-03 12:03:17,420 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:17" (1/1) ... [2025-03-03 12:03:17,421 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 12:03:17,422 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 12:03:17,422 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 12:03:17,422 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 12:03:17,423 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:17" (1/1) ... [2025-03-03 12:03:17,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 12:03:17,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 12:03:17,447 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-03 12:03:17,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-03 12:03:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 12:03:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-03 12:03:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-03 12:03:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-03 12:03:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-03-03 12:03:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-03 12:03:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2025-03-03 12:03:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2025-03-03 12:03:17,465 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2025-03-03 12:03:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2025-03-03 12:03:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-03 12:03:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-03 12:03:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-03 12:03:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-03-03 12:03:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 12:03:17,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 12:03:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2025-03-03 12:03:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2025-03-03 12:03:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2025-03-03 12:03:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2025-03-03 12:03:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-03 12:03:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-03 12:03:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-03 12:03:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-03-03 12:03:17,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-03 12:03:17,545 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 12:03:17,546 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 12:03:17,690 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2025-03-03 12:03:17,690 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 12:03:17,697 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 12:03:17,697 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 12:03:17,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 12:03:17 BoogieIcfgContainer [2025-03-03 12:03:17,698 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 12:03:17,700 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 12:03:17,700 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 12:03:17,703 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 12:03:17,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 12:03:17" (1/3) ... [2025-03-03 12:03:17,704 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d91464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 12:03:17, skipping insertion in model container [2025-03-03 12:03:17,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 12:03:17" (2/3) ... [2025-03-03 12:03:17,705 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78d91464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 12:03:17, skipping insertion in model container [2025-03-03 12:03:17,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 12:03:17" (3/3) ... [2025-03-03 12:03:17,706 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_1011a.c [2025-03-03 12:03:17,716 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 12:03:17,717 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_1011a.c that has 1 procedures, 19 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2025-03-03 12:03:17,757 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 12:03:17,768 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;@28f0948, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 12:03:17,769 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 12:03:17,772 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 12:03:17,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-03-03 12:03:17,776 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 12:03:17,776 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 12:03:17,777 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 12:03:17,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 12:03:17,780 INFO L85 PathProgramCache]: Analyzing trace with hash 202741718, now seen corresponding path program 1 times [2025-03-03 12:03:17,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 12:03:17,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1742790097] [2025-03-03 12:03:17,791 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 12:03:17,791 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-03 12:03:17,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-03 12:03:17,795 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-03 12:03:17,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2025-03-03 12:03:17,845 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-03-03 12:03:17,860 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-03-03 12:03:17,861 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 12:03:17,861 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 12:03:17,862 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-03 12:03:17,865 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 12:03:17,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 12:03:17,882 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 12:03:17,883 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-03 12:03:17,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1742790097] [2025-03-03 12:03:17,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1742790097] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 12:03:17,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 12:03:17,884 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-03 12:03:17,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301916908] [2025-03-03 12:03:17,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 12:03:17,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-03 12:03:17,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-03 12:03:17,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-03 12:03:17,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 12:03:17,924 INFO L87 Difference]: Start difference. First operand has 19 states, 17 states have (on average 1.5294117647058822) internal successors, (26), 18 states have internal predecessors, (26), 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) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 12:03:17,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 12:03:17,933 INFO L93 Difference]: Finished difference Result 36 states and 50 transitions. [2025-03-03 12:03:17,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-03 12:03:17,936 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2025-03-03 12:03:17,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 12:03:17,941 INFO L225 Difference]: With dead ends: 36 [2025-03-03 12:03:17,941 INFO L226 Difference]: Without dead ends: 16 [2025-03-03 12:03:17,943 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-03 12:03:17,947 INFO L435 NwaCegarLoop]: 19 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, 19 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 12:03:17,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 12:03:17,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2025-03-03 12:03:17,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2025-03-03 12:03:17,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 12:03:17,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2025-03-03 12:03:17,967 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 9 [2025-03-03 12:03:17,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 12:03:17,968 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2025-03-03 12:03:17,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 12:03:17,968 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2025-03-03 12:03:17,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-03 12:03:17,969 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 12:03:17,969 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 12:03:17,973 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2025-03-03 12:03:18,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-03 12:03:18,173 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 12:03:18,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 12:03:18,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1044570644, now seen corresponding path program 1 times [2025-03-03 12:03:18,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 12:03:18,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1468959710] [2025-03-03 12:03:18,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 12:03:18,174 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-03 12:03:18,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-03 12:03:18,177 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-03 12:03:18,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2025-03-03 12:03:18,222 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-03 12:03:18,245 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-03 12:03:18,245 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 12:03:18,245 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 12:03:18,249 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-03 12:03:18,252 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 12:03:18,313 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-03 12:03:18,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2025-03-03 12:03:18,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 12:03:18,379 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 12:03:18,379 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-03 12:03:18,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1468959710] [2025-03-03 12:03:18,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1468959710] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 12:03:18,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 12:03:18,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 12:03:18,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713274299] [2025-03-03 12:03:18,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 12:03:18,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 12:03:18,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-03 12:03:18,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 12:03:18,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 12:03:18,380 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 12:03:18,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 12:03:18,424 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2025-03-03 12:03:18,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 12:03:18,424 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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 11 [2025-03-03 12:03:18,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 12:03:18,425 INFO L225 Difference]: With dead ends: 19 [2025-03-03 12:03:18,425 INFO L226 Difference]: Without dead ends: 16 [2025-03-03 12:03:18,425 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-03 12:03:18,426 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 5 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 12:03:18,426 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 40 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 12:03:18,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2025-03-03 12:03:18,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2025-03-03 12:03:18,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0) internal successors, (15), 15 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 12:03:18,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2025-03-03 12:03:18,428 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2025-03-03 12:03:18,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 12:03:18,428 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2025-03-03 12:03:18,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 12:03:18,428 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2025-03-03 12:03:18,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-03-03 12:03:18,429 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 12:03:18,429 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 12:03:18,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2025-03-03 12:03:18,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-03 12:03:18,631 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 12:03:18,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 12:03:18,631 INFO L85 PathProgramCache]: Analyzing trace with hash -1739448208, now seen corresponding path program 1 times [2025-03-03 12:03:18,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-03 12:03:18,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1817280703] [2025-03-03 12:03:18,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 12:03:18,632 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-03 12:03:18,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-03 12:03:18,636 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-03 12:03:18,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2025-03-03 12:03:18,682 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-03 12:03:18,707 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-03 12:03:18,707 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 12:03:18,707 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 12:03:18,710 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 23 conjuncts are in the unsatisfiable core [2025-03-03 12:03:18,716 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 12:03:18,805 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-03-03 12:03:18,808 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2025-03-03 12:03:18,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 12:03:18,860 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 12:03:18,860 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-03 12:03:18,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1817280703] [2025-03-03 12:03:18,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1817280703] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 12:03:18,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 12:03:18,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-03 12:03:18,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330815833] [2025-03-03 12:03:18,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 12:03:18,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-03 12:03:18,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-03 12:03:18,861 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-03 12:03:18,861 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-03-03 12:03:18,861 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 10 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 12:03:18,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 12:03:18,965 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2025-03-03 12:03:18,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-03 12:03:18,967 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 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 15 [2025-03-03 12:03:18,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 12:03:18,967 INFO L225 Difference]: With dead ends: 16 [2025-03-03 12:03:18,967 INFO L226 Difference]: Without dead ends: 0 [2025-03-03 12:03:18,967 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2025-03-03 12:03:18,968 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 8 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 12:03:18,968 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 34 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 12:03:18,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-03 12:03:18,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-03 12:03:18,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 12:03:18,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-03 12:03:18,969 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2025-03-03 12:03:18,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 12:03:18,969 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-03 12:03:18,969 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.5) internal successors, (15), 10 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-03 12:03:18,969 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-03 12:03:18,969 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-03 12:03:18,973 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-03 12:03:18,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2025-03-03 12:03:19,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-03 12:03:19,176 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-03 12:03:19,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-03 12:03:19,201 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-03 12:03:19,206 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2025-03-03 12:03:19,208 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2025-03-03 12:03:19,208 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression [2025-03-03 12:03:19,208 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2025-03-03 12:03:19,208 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2025-03-03 12:03:19,209 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 12:03:19 BoogieIcfgContainer [2025-03-03 12:03:19,209 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-03 12:03:19,210 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-03 12:03:19,210 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-03 12:03:19,210 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-03 12:03:19,212 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 12:03:17" (3/4) ... [2025-03-03 12:03:19,214 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-03 12:03:19,218 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2025-03-03 12:03:19,219 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-03-03 12:03:19,219 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-03 12:03:19,219 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-03 12:03:19,270 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-03 12:03:19,271 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-03 12:03:19,271 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-03 12:03:19,271 INFO L158 Benchmark]: Toolchain (without parser) took 2092.98ms. Allocated memory is still 83.9MB. Free memory was 59.9MB in the beginning and 51.8MB in the end (delta: 8.1MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2025-03-03 12:03:19,272 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 83.9MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 12:03:19,272 INFO L158 Benchmark]: CACSL2BoogieTranslator took 190.78ms. Allocated memory is still 83.9MB. Free memory was 59.9MB in the beginning and 48.1MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 12:03:19,272 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.46ms. Allocated memory is still 83.9MB. Free memory was 48.1MB in the beginning and 46.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 12:03:19,272 INFO L158 Benchmark]: Boogie Preprocessor took 28.00ms. Allocated memory is still 83.9MB. Free memory was 46.8MB in the beginning and 45.0MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 12:03:19,272 INFO L158 Benchmark]: IcfgBuilder took 275.90ms. Allocated memory is still 83.9MB. Free memory was 45.0MB in the beginning and 32.7MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-03 12:03:19,272 INFO L158 Benchmark]: TraceAbstraction took 1509.08ms. Allocated memory is still 83.9MB. Free memory was 32.1MB in the beginning and 57.6MB in the end (delta: -25.5MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2025-03-03 12:03:19,273 INFO L158 Benchmark]: Witness Printer took 61.21ms. Allocated memory is still 83.9MB. Free memory was 57.6MB in the beginning and 51.8MB in the end (delta: 5.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-03 12:03:19,274 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 83.9MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 190.78ms. Allocated memory is still 83.9MB. Free memory was 59.9MB in the beginning and 48.1MB in the end (delta: 11.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 22.46ms. Allocated memory is still 83.9MB. Free memory was 48.1MB in the beginning and 46.8MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.00ms. Allocated memory is still 83.9MB. Free memory was 46.8MB in the beginning and 45.0MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 275.90ms. Allocated memory is still 83.9MB. Free memory was 45.0MB in the beginning and 32.7MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1509.08ms. Allocated memory is still 83.9MB. Free memory was 32.1MB in the beginning and 57.6MB in the end (delta: -25.5MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. * Witness Printer took 61.21ms. Allocated memory is still 83.9MB. Free memory was 57.6MB in the beginning and 51.8MB in the end (delta: 5.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 52]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 93 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 59 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 85 IncrementalHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 34 mSDtfsCounter, 85 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 SizeOfPredicates, 11 NumberOfNonLiveVariables, 136 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-03 12:03:19,285 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE