./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_1092d.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed 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/double_req_bl_1092d.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 3af1cc7b717b9387beaa6f5748bd79e907549cdc0103a27a33252f549ff317c1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 03:04:42,035 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 03:04:42,085 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 03:04:42,090 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 03:04:42,090 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 03:04:42,102 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 03:04:42,103 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 03:04:42,103 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 03:04:42,103 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 03:04:42,104 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 03:04:42,104 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 03:04:42,104 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 03:04:42,104 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 03:04:42,104 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 03:04:42,104 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 03:04:42,104 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 03:04:42,104 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 03:04:42,104 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 03:04:42,105 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 03:04:42,105 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 03:04:42,105 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 03:04:42,105 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 03:04:42,105 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 03:04:42,105 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 03:04:42,105 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 03:04:42,105 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 03:04:42,105 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 03:04:42,105 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 03:04:42,105 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 03:04:42,105 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 03:04:42,106 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 03:04:42,106 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 03:04:42,106 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 03:04:42,106 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 03:04:42,106 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 03:04:42,106 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 03:04:42,106 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 03:04:42,106 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 03:04:42,107 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 03:04:42,107 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 03:04:42,107 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 03:04:42,107 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 03:04:42,107 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 03:04:42,107 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 -> 3af1cc7b717b9387beaa6f5748bd79e907549cdc0103a27a33252f549ff317c1 [2025-03-08 03:04:42,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 03:04:42,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 03:04:42,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 03:04:42,353 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 03:04:42,353 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 03:04:42,355 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1092d.c [2025-03-08 03:04:43,522 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a6b202d2/c268af26c1914ec88aef283c6777e0ca/FLAG6e2ebb8ab [2025-03-08 03:04:43,755 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 03:04:43,756 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1092d.c [2025-03-08 03:04:43,761 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a6b202d2/c268af26c1914ec88aef283c6777e0ca/FLAG6e2ebb8ab [2025-03-08 03:04:44,113 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a6b202d2/c268af26c1914ec88aef283c6777e0ca [2025-03-08 03:04:44,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 03:04:44,116 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 03:04:44,117 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 03:04:44,117 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 03:04:44,121 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 03:04:44,122 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:04:44" (1/1) ... [2025-03-08 03:04:44,124 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a707027 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:44, skipping insertion in model container [2025-03-08 03:04:44,124 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:04:44" (1/1) ... [2025-03-08 03:04:44,134 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 03:04:44,271 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/double_req_bl_1092d.c[2417,2430] [2025-03-08 03:04:44,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 03:04:44,280 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 03:04:44,309 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/double_req_bl_1092d.c[2417,2430] [2025-03-08 03:04:44,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 03:04:44,325 INFO L204 MainTranslator]: Completed translation [2025-03-08 03:04:44,326 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:44 WrapperNode [2025-03-08 03:04:44,326 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 03:04:44,327 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 03:04:44,327 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 03:04:44,327 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 03:04:44,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:44" (1/1) ... [2025-03-08 03:04:44,340 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:44" (1/1) ... [2025-03-08 03:04:44,366 INFO L138 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 224 [2025-03-08 03:04:44,370 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 03:04:44,370 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 03:04:44,370 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 03:04:44,370 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 03:04:44,379 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:44" (1/1) ... [2025-03-08 03:04:44,379 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:44" (1/1) ... [2025-03-08 03:04:44,382 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:44" (1/1) ... [2025-03-08 03:04:44,403 INFO L175 MemorySlicer]: Split 11 memory accesses to 4 slices as follows [2, 3, 3, 3]. 27 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 4 writes are split as follows [0, 1, 2, 1]. [2025-03-08 03:04:44,403 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:44" (1/1) ... [2025-03-08 03:04:44,404 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:44" (1/1) ... [2025-03-08 03:04:44,411 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:44" (1/1) ... [2025-03-08 03:04:44,412 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:44" (1/1) ... [2025-03-08 03:04:44,418 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:44" (1/1) ... [2025-03-08 03:04:44,419 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:44" (1/1) ... [2025-03-08 03:04:44,425 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 03:04:44,426 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 03:04:44,426 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 03:04:44,426 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 03:04:44,426 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:44" (1/1) ... [2025-03-08 03:04:44,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 03:04:44,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 03:04:44,455 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) [2025-03-08 03:04:44,457 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 [2025-03-08 03:04:44,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 03:04:44,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 03:04:44,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 03:04:44,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 03:04:44,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 03:04:44,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 03:04:44,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-03-08 03:04:44,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-03-08 03:04:44,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-03-08 03:04:44,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-03-08 03:04:44,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 03:04:44,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 03:04:44,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 03:04:44,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 03:04:44,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-03-08 03:04:44,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-03-08 03:04:44,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2025-03-08 03:04:44,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2025-03-08 03:04:44,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 03:04:44,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 03:04:44,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 03:04:44,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 03:04:44,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 03:04:44,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 03:04:44,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 03:04:44,545 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 03:04:44,547 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 03:04:44,881 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L94: havoc isinf_double_#t~bitwise21#1; [2025-03-08 03:04:44,897 INFO L? ?]: Removed 71 outVars from TransFormulas that were not future-live. [2025-03-08 03:04:44,898 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 03:04:44,926 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 03:04:44,926 INFO L336 CfgBuilder]: Removed 1 assume(true) statements. [2025-03-08 03:04:44,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:04:44 BoogieIcfgContainer [2025-03-08 03:04:44,926 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 03:04:44,928 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 03:04:44,928 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 03:04:44,931 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 03:04:44,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 03:04:44" (1/3) ... [2025-03-08 03:04:44,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7625545d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:04:44, skipping insertion in model container [2025-03-08 03:04:44,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:44" (2/3) ... [2025-03-08 03:04:44,932 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7625545d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:04:44, skipping insertion in model container [2025-03-08 03:04:44,932 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:04:44" (3/3) ... [2025-03-08 03:04:44,933 INFO L128 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092d.c [2025-03-08 03:04:44,944 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 03:04:44,945 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG double_req_bl_1092d.c that has 1 procedures, 81 locations, 1 initial locations, 3 loop locations, and 4 error locations. [2025-03-08 03:04:44,985 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 03:04:44,997 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;@682ae0ac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 03:04:44,997 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-03-08 03:04:45,000 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 76 states have (on average 1.6710526315789473) internal successors, (127), 80 states have internal predecessors, (127), 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) [2025-03-08 03:04:45,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-03-08 03:04:45,004 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 03:04:45,004 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-03-08 03:04:45,005 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)] === [2025-03-08 03:04:45,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 03:04:45,009 INFO L85 PathProgramCache]: Analyzing trace with hash 177714, now seen corresponding path program 1 times [2025-03-08 03:04:45,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 03:04:45,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062207534] [2025-03-08 03:04:45,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 03:04:45,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 03:04:45,069 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-08 03:04:45,079 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-08 03:04:45,079 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 03:04:45,080 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 03:04:45,080 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 03:04:45,085 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-08 03:04:45,088 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-08 03:04:45,088 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 03:04:45,088 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 03:04:45,104 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-08 03:04:45,105 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 03:04:45,106 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONUNSUPPORTED_FEATURE (3 of 4 remaining) [2025-03-08 03:04:45,108 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2025-03-08 03:04:45,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (1 of 4 remaining) [2025-03-08 03:04:45,110 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 4 remaining) [2025-03-08 03:04:45,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 03:04:45,116 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-08 03:04:45,127 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 03:04:45,129 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 03:04:45 BoogieIcfgContainer [2025-03-08 03:04:45,129 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 03:04:45,130 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 03:04:45,130 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 03:04:45,130 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 03:04:45,130 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:04:44" (3/4) ... [2025-03-08 03:04:45,132 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-08 03:04:45,133 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 03:04:45,134 INFO L158 Benchmark]: Toolchain (without parser) took 1018.01ms. Allocated memory is still 167.8MB. Free memory was 133.3MB in the beginning and 77.5MB in the end (delta: 55.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-03-08 03:04:45,135 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 03:04:45,135 INFO L158 Benchmark]: CACSL2BoogieTranslator took 209.14ms. Allocated memory is still 167.8MB. Free memory was 132.8MB in the beginning and 120.7MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 03:04:45,136 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.80ms. Allocated memory is still 167.8MB. Free memory was 120.7MB in the beginning and 118.5MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 03:04:45,137 INFO L158 Benchmark]: Boogie Preprocessor took 54.77ms. Allocated memory is still 167.8MB. Free memory was 118.5MB in the beginning and 116.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 03:04:45,138 INFO L158 Benchmark]: IcfgBuilder took 500.92ms. Allocated memory is still 167.8MB. Free memory was 116.3MB in the beginning and 90.7MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-08 03:04:45,139 INFO L158 Benchmark]: TraceAbstraction took 201.18ms. Allocated memory is still 167.8MB. Free memory was 90.3MB in the beginning and 77.9MB in the end (delta: 12.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 03:04:45,139 INFO L158 Benchmark]: Witness Printer took 3.84ms. Allocated memory is still 167.8MB. Free memory was 77.9MB in the beginning and 77.5MB in the end (delta: 453.4kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 03:04:45,141 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 201.3MB. Free memory is still 126.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 209.14ms. Allocated memory is still 167.8MB. Free memory was 132.8MB in the beginning and 120.7MB in the end (delta: 12.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.80ms. Allocated memory is still 167.8MB. Free memory was 120.7MB in the beginning and 118.5MB in the end (delta: 2.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.77ms. Allocated memory is still 167.8MB. Free memory was 118.5MB in the beginning and 116.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 500.92ms. Allocated memory is still 167.8MB. Free memory was 116.3MB in the beginning and 90.7MB in the end (delta: 25.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 201.18ms. Allocated memory is still 167.8MB. Free memory was 90.3MB in the beginning and 77.9MB in the end (delta: 12.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.84ms. Allocated memory is still 167.8MB. Free memory was 77.9MB in the beginning and 77.5MB in the end (delta: 453.4kB). 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: 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: overapproximation of someBinaryArithmeticDOUBLEoperation at line 105, overapproximation of union with floats in the HoenickeLindenmann_Original memory model at line 22. Possible FailurePath: [L16] static const double huge_ceil = 1.0e300; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L105] double x = -1.0 / 0.0; [L106] CALL ceil_double(x) [L19] __int32_t i0, i1, j0; [L20] __uint32_t i, j; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005] [L22] ieee_double_shape_type ew_u; VAL [huge_ceil=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005] - UnprovableResult [Line: 110]: 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: 86]: 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: 74]: 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, 81 locations, 127 edges, 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=81occurred 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 [2025-03-08 03:04:45,154 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/double_req_bl_1092d.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 3af1cc7b717b9387beaa6f5748bd79e907549cdc0103a27a33252f549ff317c1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 03:04:47,095 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 03:04:47,171 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-08 03:04:47,177 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 03:04:47,177 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 03:04:47,198 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 03:04:47,198 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 03:04:47,198 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 03:04:47,199 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 03:04:47,199 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 03:04:47,199 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 03:04:47,199 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 03:04:47,199 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 03:04:47,199 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 03:04:47,199 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 03:04:47,199 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 03:04:47,199 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 03:04:47,199 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 03:04:47,199 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 03:04:47,199 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 03:04:47,200 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 03:04:47,200 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 03:04:47,200 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 03:04:47,200 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 03:04:47,200 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-08 03:04:47,200 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-08 03:04:47,200 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 03:04:47,200 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 03:04:47,200 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 03:04:47,200 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 03:04:47,200 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 03:04:47,200 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 03:04:47,200 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 03:04:47,200 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 03:04:47,200 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 03:04:47,200 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 03:04:47,200 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 03:04:47,200 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 03:04:47,200 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 03:04:47,201 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-08 03:04:47,201 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-08 03:04:47,201 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 03:04:47,201 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 03:04:47,201 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 03:04:47,201 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 03:04:47,201 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 -> 3af1cc7b717b9387beaa6f5748bd79e907549cdc0103a27a33252f549ff317c1 [2025-03-08 03:04:47,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 03:04:47,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 03:04:47,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 03:04:47,449 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 03:04:47,449 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 03:04:47,451 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_1092d.c [2025-03-08 03:04:48,661 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d75c5c332/2f93019eddf644bfb5e2c9fef47771ad/FLAGdc4b9edf3 [2025-03-08 03:04:48,829 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 03:04:48,830 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_1092d.c [2025-03-08 03:04:48,837 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d75c5c332/2f93019eddf644bfb5e2c9fef47771ad/FLAGdc4b9edf3 [2025-03-08 03:04:48,853 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d75c5c332/2f93019eddf644bfb5e2c9fef47771ad [2025-03-08 03:04:48,856 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 03:04:48,857 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 03:04:48,859 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 03:04:48,859 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 03:04:48,862 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 03:04:48,862 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:04:48" (1/1) ... [2025-03-08 03:04:48,864 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dccdb7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:48, skipping insertion in model container [2025-03-08 03:04:48,864 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:04:48" (1/1) ... [2025-03-08 03:04:48,876 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 03:04:49,010 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/double_req_bl_1092d.c[2417,2430] [2025-03-08 03:04:49,013 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 03:04:49,025 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 03:04:49,048 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/double_req_bl_1092d.c[2417,2430] [2025-03-08 03:04:49,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 03:04:49,063 INFO L204 MainTranslator]: Completed translation [2025-03-08 03:04:49,064 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:49 WrapperNode [2025-03-08 03:04:49,064 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 03:04:49,065 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 03:04:49,065 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 03:04:49,065 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 03:04:49,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:49" (1/1) ... [2025-03-08 03:04:49,077 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:49" (1/1) ... [2025-03-08 03:04:49,089 INFO L138 Inliner]: procedures = 19, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 118 [2025-03-08 03:04:49,090 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 03:04:49,092 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 03:04:49,092 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 03:04:49,092 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 03:04:49,097 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:49" (1/1) ... [2025-03-08 03:04:49,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:49" (1/1) ... [2025-03-08 03:04:49,101 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:49" (1/1) ... [2025-03-08 03:04:49,110 INFO L175 MemorySlicer]: Split 11 memory accesses to 4 slices as follows [2, 3, 3, 3]. 27 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 2]. [2025-03-08 03:04:49,110 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:49" (1/1) ... [2025-03-08 03:04:49,110 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:49" (1/1) ... [2025-03-08 03:04:49,116 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:49" (1/1) ... [2025-03-08 03:04:49,117 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:49" (1/1) ... [2025-03-08 03:04:49,119 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:49" (1/1) ... [2025-03-08 03:04:49,119 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:49" (1/1) ... [2025-03-08 03:04:49,121 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 03:04:49,122 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 03:04:49,122 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 03:04:49,122 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 03:04:49,123 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:49" (1/1) ... [2025-03-08 03:04:49,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 03:04:49,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 03:04:49,148 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) [2025-03-08 03:04:49,151 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 [2025-03-08 03:04:49,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 03:04:49,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2025-03-08 03:04:49,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2025-03-08 03:04:49,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2025-03-08 03:04:49,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2025-03-08 03:04:49,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2025-03-08 03:04:49,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2025-03-08 03:04:49,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2025-03-08 03:04:49,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2025-03-08 03:04:49,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-08 03:04:49,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-08 03:04:49,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-08 03:04:49,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-03-08 03:04:49,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 03:04:49,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-08 03:04:49,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-08 03:04:49,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-08 03:04:49,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-03-08 03:04:49,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 03:04:49,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 03:04:49,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-08 03:04:49,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-08 03:04:49,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-08 03:04:49,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-03-08 03:04:49,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 03:04:49,251 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 03:04:49,253 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 03:04:50,143 INFO L? ?]: Removed 31 outVars from TransFormulas that were not future-live. [2025-03-08 03:04:50,143 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 03:04:50,151 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 03:04:50,152 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 03:04:50,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:04:50 BoogieIcfgContainer [2025-03-08 03:04:50,152 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 03:04:50,154 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 03:04:50,154 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 03:04:50,157 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 03:04:50,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 03:04:48" (1/3) ... [2025-03-08 03:04:50,158 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2409711f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:04:50, skipping insertion in model container [2025-03-08 03:04:50,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:04:49" (2/3) ... [2025-03-08 03:04:50,159 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2409711f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:04:50, skipping insertion in model container [2025-03-08 03:04:50,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:04:50" (3/3) ... [2025-03-08 03:04:50,159 INFO L128 eAbstractionObserver]: Analyzing ICFG double_req_bl_1092d.c [2025-03-08 03:04:50,169 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 03:04:50,170 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG double_req_bl_1092d.c that has 1 procedures, 37 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2025-03-08 03:04:50,213 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 03:04:50,224 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;@4ed5c585, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 03:04:50,225 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 03:04:50,228 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 35 states have (on average 1.6571428571428573) internal successors, (58), 36 states have internal predecessors, (58), 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) [2025-03-08 03:04:50,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-08 03:04:50,233 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 03:04:50,233 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 03:04:50,234 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 03:04:50,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 03:04:50,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1060081416, now seen corresponding path program 1 times [2025-03-08 03:04:50,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 03:04:50,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [16095295] [2025-03-08 03:04:50,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 03:04:50,245 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 [2025-03-08 03:04:50,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 03:04:50,248 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) [2025-03-08 03:04:50,249 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 [2025-03-08 03:04:50,311 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-08 03:04:50,338 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-08 03:04:50,339 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 03:04:50,339 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 03:04:50,341 INFO L256 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 03:04:50,344 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 03:04:50,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 03:04:50,357 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 03:04:50,357 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 03:04:50,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [16095295] [2025-03-08 03:04:50,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [16095295] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 03:04:50,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 03:04:50,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 03:04:50,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650768975] [2025-03-08 03:04:50,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 03:04:50,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 03:04:50,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 03:04:50,374 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 03:04:50,375 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 03:04:50,376 INFO L87 Difference]: Start difference. First operand has 37 states, 35 states have (on average 1.6571428571428573) internal successors, (58), 36 states have internal predecessors, (58), 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 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2025-03-08 03:04:50,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 03:04:50,388 INFO L93 Difference]: Finished difference Result 72 states and 114 transitions. [2025-03-08 03:04:50,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 03:04:50,390 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 13 [2025-03-08 03:04:50,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 03:04:50,395 INFO L225 Difference]: With dead ends: 72 [2025-03-08 03:04:50,395 INFO L226 Difference]: Without dead ends: 34 [2025-03-08 03:04:50,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 03:04:50,401 INFO L435 NwaCegarLoop]: 51 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, 51 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 [2025-03-08 03:04:50,402 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 03:04:50,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2025-03-08 03:04:50,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2025-03-08 03:04:50,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.4545454545454546) internal successors, (48), 33 states have internal predecessors, (48), 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) [2025-03-08 03:04:50,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 48 transitions. [2025-03-08 03:04:50,424 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 48 transitions. Word has length 13 [2025-03-08 03:04:50,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 03:04:50,424 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 48 transitions. [2025-03-08 03:04:50,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2025-03-08 03:04:50,426 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 48 transitions. [2025-03-08 03:04:50,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-03-08 03:04:50,427 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 03:04:50,427 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 03:04:50,432 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 [2025-03-08 03:04:50,628 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 [2025-03-08 03:04:50,628 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 03:04:50,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 03:04:50,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1000779665, now seen corresponding path program 1 times [2025-03-08 03:04:50,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 03:04:50,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1032227609] [2025-03-08 03:04:50,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 03:04:50,629 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 [2025-03-08 03:04:50,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 03:04:50,631 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) [2025-03-08 03:04:50,633 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 [2025-03-08 03:04:50,671 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-08 03:04:50,709 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-08 03:04:50,709 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 03:04:50,709 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 03:04:50,711 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-08 03:04:50,714 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 03:04:50,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 03:04:50,926 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 03:04:50,926 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 03:04:50,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1032227609] [2025-03-08 03:04:50,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1032227609] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 03:04:50,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 03:04:50,926 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 03:04:50,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143640075] [2025-03-08 03:04:50,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 03:04:50,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 03:04:50,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 03:04:50,929 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 03:04:50,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 03:04:50,929 INFO L87 Difference]: Start difference. First operand 34 states and 48 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2025-03-08 03:04:51,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 03:04:51,156 INFO L93 Difference]: Finished difference Result 42 states and 55 transitions. [2025-03-08 03:04:51,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 03:04:51,156 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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 [2025-03-08 03:04:51,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 03:04:51,157 INFO L225 Difference]: With dead ends: 42 [2025-03-08 03:04:51,157 INFO L226 Difference]: Without dead ends: 16 [2025-03-08 03:04:51,157 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-03-08 03:04:51,158 INFO L435 NwaCegarLoop]: 10 mSDtfsCounter, 11 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 03:04:51,158 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 32 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 03:04:51,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2025-03-08 03:04:51,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2025-03-08 03:04:51,160 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) [2025-03-08 03:04:51,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2025-03-08 03:04:51,160 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 15 [2025-03-08 03:04:51,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 03:04:51,160 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2025-03-08 03:04:51,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 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) [2025-03-08 03:04:51,160 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2025-03-08 03:04:51,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-03-08 03:04:51,161 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 03:04:51,161 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 03:04:51,166 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 [2025-03-08 03:04:51,361 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 [2025-03-08 03:04:51,361 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 03:04:51,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 03:04:51,362 INFO L85 PathProgramCache]: Analyzing trace with hash -860967649, now seen corresponding path program 1 times [2025-03-08 03:04:51,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 03:04:51,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1950851275] [2025-03-08 03:04:51,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 03:04:51,362 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 [2025-03-08 03:04:51,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 03:04:51,364 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) [2025-03-08 03:04:51,365 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 [2025-03-08 03:04:51,396 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-03-08 03:04:51,462 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-03-08 03:04:51,462 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 03:04:51,462 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 03:04:51,466 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-08 03:04:51,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 03:04:51,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 03:04:51,691 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 03:04:51,691 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 03:04:51,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1950851275] [2025-03-08 03:04:51,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1950851275] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 03:04:51,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 03:04:51,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-08 03:04:51,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710478177] [2025-03-08 03:04:51,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 03:04:51,692 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 03:04:51,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 03:04:51,693 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 03:04:51,694 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-03-08 03:04:51,694 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 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) [2025-03-08 03:04:51,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 03:04:51,989 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2025-03-08 03:04:51,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 03:04:51,989 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 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 [2025-03-08 03:04:51,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 03:04:51,989 INFO L225 Difference]: With dead ends: 16 [2025-03-08 03:04:51,989 INFO L226 Difference]: Without dead ends: 0 [2025-03-08 03:04:51,990 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2025-03-08 03:04:51,990 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 9 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 03:04:51,990 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 35 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 03:04:51,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-08 03:04:51,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-08 03:04:51,991 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) [2025-03-08 03:04:51,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-08 03:04:51,991 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2025-03-08 03:04:51,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 03:04:51,991 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-08 03:04:51,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 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) [2025-03-08 03:04:51,991 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-08 03:04:51,991 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-08 03:04:51,994 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-08 03:04:52,001 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 [2025-03-08 03:04:52,195 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 [2025-03-08 03:04:52,197 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-08 03:04:52,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-08 03:04:52,243 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 03:04:52,249 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-03-08 03:04:52,251 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-08 03:04:52,251 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-03-08 03:04:52,251 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-08 03:04:52,251 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-08 03:04:52,251 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-03-08 03:04:52,253 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 03:04:52 BoogieIcfgContainer [2025-03-08 03:04:52,253 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 03:04:52,254 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 03:04:52,254 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 03:04:52,254 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 03:04:52,255 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:04:50" (3/4) ... [2025-03-08 03:04:52,256 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-08 03:04:52,265 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2025-03-08 03:04:52,265 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-03-08 03:04:52,266 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-08 03:04:52,266 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-08 03:04:52,330 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 03:04:52,331 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 03:04:52,331 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 03:04:52,332 INFO L158 Benchmark]: Toolchain (without parser) took 3474.46ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 82.2MB in the end (delta: 10.1MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2025-03-08 03:04:52,333 INFO L158 Benchmark]: CDTParser took 0.80ms. Allocated memory is still 83.9MB. Free memory was 61.8MB in the beginning and 61.8MB in the end (delta: 34.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 03:04:52,333 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.83ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 79.4MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 03:04:52,333 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.03ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 77.9MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 03:04:52,333 INFO L158 Benchmark]: Boogie Preprocessor took 29.66ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 75.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 03:04:52,333 INFO L158 Benchmark]: IcfgBuilder took 1030.23ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 59.4MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 03:04:52,333 INFO L158 Benchmark]: TraceAbstraction took 2099.34ms. Allocated memory is still 117.4MB. Free memory was 58.8MB in the beginning and 88.2MB in the end (delta: -29.4MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. [2025-03-08 03:04:52,334 INFO L158 Benchmark]: Witness Printer took 77.05ms. Allocated memory is still 117.4MB. Free memory was 88.2MB in the beginning and 82.2MB in the end (delta: 5.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 03:04:52,334 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80ms. Allocated memory is still 83.9MB. Free memory was 61.8MB in the beginning and 61.8MB in the end (delta: 34.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 205.83ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 79.4MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.03ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 77.9MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.66ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 75.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 1030.23ms. Allocated memory is still 117.4MB. Free memory was 75.6MB in the beginning and 59.4MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2099.34ms. Allocated memory is still 117.4MB. Free memory was 58.8MB in the beginning and 88.2MB in the end (delta: -29.4MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. * Witness Printer took 77.05ms. Allocated memory is still 117.4MB. Free memory was 88.2MB in the beginning and 82.2MB in the end (delta: 5.9MB). 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: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * 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: 110]: 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, 37 locations, 58 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 20 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 118 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 51 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 54 IncrementalHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 67 mSDtfsCounter, 54 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 17, 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, 0.5s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 8 QuantifiedInterpolants, 421 SizeOfPredicates, 8 NumberOfNonLiveVariables, 154 ConjunctsInSsa, 27 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 - InvariantResult [Line: 73]: Location Invariant Derived location invariant: 0 RESULT: Ultimate proved your program to be correct! [2025-03-08 03:04:52,357 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 Writing output log to file Ultimate.log Result: TRUE