./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1122b.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/float_req_bl_1122b.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 531a1139fb1df73d7771aceceeca279cd2242c70bbd9f853f2d0e457d633cadc --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 03:14:06,569 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 03:14:06,629 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 03:14:06,635 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 03:14:06,637 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 03:14:06,659 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 03:14:06,660 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 03:14:06,660 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 03:14:06,660 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 03:14:06,660 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 03:14:06,660 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 03:14:06,661 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 03:14:06,661 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 03:14:06,661 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 03:14:06,661 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 03:14:06,661 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 03:14:06,661 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 03:14:06,661 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 03:14:06,661 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 03:14:06,662 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 03:14:06,662 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 03:14:06,662 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 03:14:06,662 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 03:14:06,662 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 03:14:06,662 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 03:14:06,662 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 03:14:06,662 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 03:14:06,662 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 03:14:06,662 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 03:14:06,662 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 03:14:06,663 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 03:14:06,663 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 03:14:06,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 03:14:06,663 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 03:14:06,663 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 03:14:06,663 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 03:14:06,663 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 03:14:06,663 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 03:14:06,663 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 03:14:06,663 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 03:14:06,663 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 03:14:06,664 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 03:14:06,664 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 03:14:06,664 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 -> 531a1139fb1df73d7771aceceeca279cd2242c70bbd9f853f2d0e457d633cadc [2025-03-08 03:14:06,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 03:14:06,900 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 03:14:06,901 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 03:14:06,902 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 03:14:06,902 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 03:14:06,904 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2025-03-08 03:14:08,067 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bfcdc47b/56288f3865484920a8ec1d17cbc9fe57/FLAG43bc7611a [2025-03-08 03:14:08,303 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 03:14:08,304 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2025-03-08 03:14:08,309 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bfcdc47b/56288f3865484920a8ec1d17cbc9fe57/FLAG43bc7611a [2025-03-08 03:14:08,319 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7bfcdc47b/56288f3865484920a8ec1d17cbc9fe57 [2025-03-08 03:14:08,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 03:14:08,323 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 03:14:08,324 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 03:14:08,324 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 03:14:08,327 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 03:14:08,328 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:14:08" (1/1) ... [2025-03-08 03:14:08,328 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43ce57e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:08, skipping insertion in model container [2025-03-08 03:14:08,328 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:14:08" (1/1) ... [2025-03-08 03:14:08,341 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 03:14:08,480 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c[2726,2739] [2025-03-08 03:14:08,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 03:14:08,492 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 03:14:08,523 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c[2726,2739] [2025-03-08 03:14:08,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 03:14:08,540 INFO L204 MainTranslator]: Completed translation [2025-03-08 03:14:08,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:08 WrapperNode [2025-03-08 03:14:08,540 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 03:14:08,541 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 03:14:08,541 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 03:14:08,541 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 03:14:08,547 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:08" (1/1) ... [2025-03-08 03:14:08,553 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:08" (1/1) ... [2025-03-08 03:14:08,583 INFO L138 Inliner]: procedures = 18, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 233 [2025-03-08 03:14:08,586 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 03:14:08,587 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 03:14:08,587 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 03:14:08,587 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 03:14:08,594 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:08" (1/1) ... [2025-03-08 03:14:08,594 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:08" (1/1) ... [2025-03-08 03:14:08,596 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:08" (1/1) ... [2025-03-08 03:14:08,617 INFO L175 MemorySlicer]: Split 15 memory accesses to 6 slices as follows [2, 5, 2, 2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 0, 1, 1, 1, 1]. [2025-03-08 03:14:08,617 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:08" (1/1) ... [2025-03-08 03:14:08,617 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:08" (1/1) ... [2025-03-08 03:14:08,629 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:08" (1/1) ... [2025-03-08 03:14:08,634 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:08" (1/1) ... [2025-03-08 03:14:08,636 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:08" (1/1) ... [2025-03-08 03:14:08,637 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:08" (1/1) ... [2025-03-08 03:14:08,639 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 03:14:08,640 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 03:14:08,640 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 03:14:08,640 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 03:14:08,641 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:08" (1/1) ... [2025-03-08 03:14:08,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 03:14:08,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 03:14:08,663 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 03:14:08,665 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 03:14:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 03:14:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 03:14:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 03:14:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 03:14:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 03:14:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 03:14:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 03:14:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 03:14:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-08 03:14:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-08 03:14:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-08 03:14:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-08 03:14:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-08 03:14:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-08 03:14:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-03-08 03:14:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-03-08 03:14:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-03-08 03:14:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-03-08 03:14:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-03-08 03:14:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-03-08 03:14:08,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-03-08 03:14:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-03-08 03:14:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2025-03-08 03:14:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2025-03-08 03:14:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2025-03-08 03:14:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2025-03-08 03:14:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 03:14:08,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 03:14:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-08 03:14:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-08 03:14:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-08 03:14:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-08 03:14:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-08 03:14:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-08 03:14:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2025-03-08 03:14:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2025-03-08 03:14:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2025-03-08 03:14:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2025-03-08 03:14:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2025-03-08 03:14:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2025-03-08 03:14:08,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 03:14:08,762 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 03:14:08,763 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 03:14:09,022 INFO L? ?]: Removed 63 outVars from TransFormulas that were not future-live. [2025-03-08 03:14:09,022 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 03:14:09,050 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 03:14:09,050 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 03:14:09,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:14:09 BoogieIcfgContainer [2025-03-08 03:14:09,050 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 03:14:09,053 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 03:14:09,054 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 03:14:09,057 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 03:14:09,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 03:14:08" (1/3) ... [2025-03-08 03:14:09,058 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b720843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:14:09, skipping insertion in model container [2025-03-08 03:14:09,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:08" (2/3) ... [2025-03-08 03:14:09,058 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b720843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:14:09, skipping insertion in model container [2025-03-08 03:14:09,058 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:14:09" (3/3) ... [2025-03-08 03:14:09,059 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122b.c [2025-03-08 03:14:09,071 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 03:14:09,073 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_1122b.c that has 1 procedures, 78 locations, 1 initial locations, 8 loop locations, and 5 error locations. [2025-03-08 03:14:09,121 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 03:14:09,129 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;@1f8fc083, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 03:14:09,131 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-03-08 03:14:09,135 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 72 states have (on average 1.7083333333333333) internal successors, (123), 77 states have internal predecessors, (123), 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 03:14:09,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2025-03-08 03:14:09,139 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 03:14:09,139 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1] [2025-03-08 03:14:09,139 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 2 more)] === [2025-03-08 03:14:09,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 03:14:09,145 INFO L85 PathProgramCache]: Analyzing trace with hash 173742, now seen corresponding path program 1 times [2025-03-08 03:14:09,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 03:14:09,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155655036] [2025-03-08 03:14:09,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 03:14:09,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 03:14:09,203 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-08 03:14:09,214 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-08 03:14:09,215 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 03:14:09,215 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 03:14:09,216 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 03:14:09,221 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-08 03:14:09,225 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-08 03:14:09,225 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 03:14:09,226 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 03:14:09,241 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-08 03:14:09,242 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 03:14:09,243 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONUNSUPPORTED_FEATURE (4 of 5 remaining) [2025-03-08 03:14:09,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2025-03-08 03:14:09,246 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (2 of 5 remaining) [2025-03-08 03:14:09,247 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (1 of 5 remaining) [2025-03-08 03:14:09,247 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 5 remaining) [2025-03-08 03:14:09,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 03:14:09,250 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-08 03:14:09,267 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 03:14:09,271 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 03:14:09 BoogieIcfgContainer [2025-03-08 03:14:09,272 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 03:14:09,272 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 03:14:09,272 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 03:14:09,272 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 03:14:09,273 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:14:09" (3/4) ... [2025-03-08 03:14:09,275 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-08 03:14:09,276 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 03:14:09,277 INFO L158 Benchmark]: Toolchain (without parser) took 953.83ms. Allocated memory is still 142.6MB. Free memory was 114.0MB in the beginning and 58.2MB in the end (delta: 55.8MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-03-08 03:14:09,277 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 123.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 03:14:09,277 INFO L158 Benchmark]: CACSL2BoogieTranslator took 216.98ms. Allocated memory is still 142.6MB. Free memory was 114.0MB in the beginning and 101.0MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 03:14:09,277 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.54ms. Allocated memory is still 142.6MB. Free memory was 101.0MB in the beginning and 99.1MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 03:14:09,277 INFO L158 Benchmark]: Boogie Preprocessor took 52.04ms. Allocated memory is still 142.6MB. Free memory was 99.1MB in the beginning and 96.6MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 03:14:09,278 INFO L158 Benchmark]: IcfgBuilder took 410.53ms. Allocated memory is still 142.6MB. Free memory was 96.6MB in the beginning and 72.0MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-08 03:14:09,278 INFO L158 Benchmark]: TraceAbstraction took 218.21ms. Allocated memory is still 142.6MB. Free memory was 71.5MB in the beginning and 58.8MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 03:14:09,278 INFO L158 Benchmark]: Witness Printer took 3.78ms. Allocated memory is still 142.6MB. Free memory was 58.8MB in the beginning and 58.2MB in the end (delta: 574.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 03:14:09,280 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 201.3MB. Free memory is still 123.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 216.98ms. Allocated memory is still 142.6MB. Free memory was 114.0MB in the beginning and 101.0MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.54ms. Allocated memory is still 142.6MB. Free memory was 101.0MB in the beginning and 99.1MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.04ms. Allocated memory is still 142.6MB. Free memory was 99.1MB in the beginning and 96.6MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 410.53ms. Allocated memory is still 142.6MB. Free memory was 96.6MB in the beginning and 72.0MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 218.21ms. Allocated memory is still 142.6MB. Free memory was 71.5MB in the beginning and 58.8MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 3.78ms. Allocated memory is still 142.6MB. Free memory was 58.8MB in the beginning and 58.2MB in the end (delta: 574.3kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 23]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: overapproximation of union with floats in the HoenickeLindenmann_Original memory model at line 23, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of someBinaryArithmeticFLOAToperation at line 119. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [Zero_fmod={4:0}, one_fmod=1] [L119] float x = -1.0f / 0.0f; [L120] float y = __VERIFIER_nondet_float(); [L121] CALL fmod_float(x, y) [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [Zero_fmod={4:0}, one_fmod=1, x=53] [L23] ieee_float_shape_type gf_u; VAL [Zero_fmod={4:0}, one_fmod=1, x=53] - UnprovableResult [Line: 125]: 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: 91]: 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: 100]: 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: 28]: 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, 78 locations, 123 edges, 5 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=78occurred 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 03:14:09,292 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1122b.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 531a1139fb1df73d7771aceceeca279cd2242c70bbd9f853f2d0e457d633cadc --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 03:14:11,180 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 03:14:11,260 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-08 03:14:11,265 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 03:14:11,265 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 03:14:11,278 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 03:14:11,279 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 03:14:11,279 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 03:14:11,279 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 03:14:11,279 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 03:14:11,279 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 03:14:11,279 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 03:14:11,279 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 03:14:11,279 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 03:14:11,280 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 03:14:11,280 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 03:14:11,280 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 03:14:11,280 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 03:14:11,280 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 03:14:11,280 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 03:14:11,280 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 03:14:11,280 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 03:14:11,280 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 03:14:11,280 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-08 03:14:11,280 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-08 03:14:11,281 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-08 03:14:11,281 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 03:14:11,281 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 03:14:11,281 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 03:14:11,281 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 03:14:11,281 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 03:14:11,281 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 03:14:11,281 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 03:14:11,281 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 03:14:11,281 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 03:14:11,282 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 03:14:11,282 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 03:14:11,282 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 03:14:11,282 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 03:14:11,282 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-08 03:14:11,282 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-08 03:14:11,282 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 03:14:11,282 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 03:14:11,282 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 03:14:11,282 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 03:14:11,282 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 -> 531a1139fb1df73d7771aceceeca279cd2242c70bbd9f853f2d0e457d633cadc [2025-03-08 03:14:11,566 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 03:14:11,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 03:14:11,575 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 03:14:11,577 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 03:14:11,577 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 03:14:11,578 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2025-03-08 03:14:12,779 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37bbe02d4/b09a5515e839414397ced21cdbe3bd76/FLAGcca4e8a13 [2025-03-08 03:14:12,976 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 03:14:12,977 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2025-03-08 03:14:12,984 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37bbe02d4/b09a5515e839414397ced21cdbe3bd76/FLAGcca4e8a13 [2025-03-08 03:14:13,346 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37bbe02d4/b09a5515e839414397ced21cdbe3bd76 [2025-03-08 03:14:13,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 03:14:13,349 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 03:14:13,350 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 03:14:13,350 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 03:14:13,353 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 03:14:13,353 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:14:13" (1/1) ... [2025-03-08 03:14:13,354 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@584489bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:13, skipping insertion in model container [2025-03-08 03:14:13,354 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 03:14:13" (1/1) ... [2025-03-08 03:14:13,365 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 03:14:13,506 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c[2726,2739] [2025-03-08 03:14:13,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 03:14:13,519 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 03:14:13,541 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c[2726,2739] [2025-03-08 03:14:13,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 03:14:13,556 INFO L204 MainTranslator]: Completed translation [2025-03-08 03:14:13,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:13 WrapperNode [2025-03-08 03:14:13,557 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 03:14:13,558 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 03:14:13,558 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 03:14:13,558 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 03:14:13,562 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:13" (1/1) ... [2025-03-08 03:14:13,569 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:13" (1/1) ... [2025-03-08 03:14:13,589 INFO L138 Inliner]: procedures = 21, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 159 [2025-03-08 03:14:13,593 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 03:14:13,593 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 03:14:13,593 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 03:14:13,593 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 03:14:13,601 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:13" (1/1) ... [2025-03-08 03:14:13,601 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:13" (1/1) ... [2025-03-08 03:14:13,604 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:13" (1/1) ... [2025-03-08 03:14:13,621 INFO L175 MemorySlicer]: Split 15 memory accesses to 6 slices as follows [2, 2, 5, 2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 0, 2, 0, 0, 0]. The 4 writes are split as follows [0, 1, 0, 1, 1, 1]. [2025-03-08 03:14:13,624 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:13" (1/1) ... [2025-03-08 03:14:13,624 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:13" (1/1) ... [2025-03-08 03:14:13,639 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:13" (1/1) ... [2025-03-08 03:14:13,640 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:13" (1/1) ... [2025-03-08 03:14:13,642 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:13" (1/1) ... [2025-03-08 03:14:13,643 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:13" (1/1) ... [2025-03-08 03:14:13,645 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 03:14:13,646 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 03:14:13,646 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 03:14:13,646 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 03:14:13,647 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:13" (1/1) ... [2025-03-08 03:14:13,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 03:14:13,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 03:14:13,680 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 03:14:13,686 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 03:14:13,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 03:14:13,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2025-03-08 03:14:13,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2025-03-08 03:14:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2025-03-08 03:14:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2025-03-08 03:14:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2025-03-08 03:14:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2025-03-08 03:14:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-08 03:14:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-08 03:14:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-08 03:14:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-03-08 03:14:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2025-03-08 03:14:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2025-03-08 03:14:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 03:14:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2025-03-08 03:14:13,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2025-03-08 03:14:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2025-03-08 03:14:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2025-03-08 03:14:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2025-03-08 03:14:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2025-03-08 03:14:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-08 03:14:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-08 03:14:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-08 03:14:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-03-08 03:14:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2025-03-08 03:14:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2025-03-08 03:14:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 03:14:13,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 03:14:13,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2025-03-08 03:14:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2025-03-08 03:14:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2025-03-08 03:14:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2025-03-08 03:14:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2025-03-08 03:14:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2025-03-08 03:14:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-08 03:14:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-08 03:14:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-08 03:14:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-03-08 03:14:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2025-03-08 03:14:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2025-03-08 03:14:13,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 03:14:13,788 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 03:14:13,790 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 03:14:16,116 INFO L? ?]: Removed 39 outVars from TransFormulas that were not future-live. [2025-03-08 03:14:16,116 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 03:14:16,126 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 03:14:16,126 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 03:14:16,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:14:16 BoogieIcfgContainer [2025-03-08 03:14:16,126 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 03:14:16,129 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 03:14:16,129 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 03:14:16,133 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 03:14:16,133 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 03:14:13" (1/3) ... [2025-03-08 03:14:16,133 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fa4018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:14:16, skipping insertion in model container [2025-03-08 03:14:16,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 03:14:13" (2/3) ... [2025-03-08 03:14:16,134 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fa4018 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 03:14:16, skipping insertion in model container [2025-03-08 03:14:16,134 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:14:16" (3/3) ... [2025-03-08 03:14:16,135 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122b.c [2025-03-08 03:14:16,156 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 03:14:16,157 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_1122b.c that has 1 procedures, 40 locations, 1 initial locations, 8 loop locations, and 1 error locations. [2025-03-08 03:14:16,193 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 03:14:16,202 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;@18b02803, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 03:14:16,202 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 03:14:16,205 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 38 states have (on average 1.7105263157894737) internal successors, (65), 39 states have internal predecessors, (65), 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 03:14:16,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-08 03:14:16,208 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 03:14:16,209 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 03:14:16,209 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 03:14:16,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 03:14:16,214 INFO L85 PathProgramCache]: Analyzing trace with hash -886749673, now seen corresponding path program 1 times [2025-03-08 03:14:16,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 03:14:16,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1948826956] [2025-03-08 03:14:16,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 03:14:16,221 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 03:14:16,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 03:14:16,223 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 03:14:16,225 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 03:14:16,290 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-08 03:14:16,438 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-08 03:14:16,438 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 03:14:16,439 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 03:14:16,445 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-08 03:14:16,448 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 03:14:16,458 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 03:14:16,458 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 03:14:16,459 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 03:14:16,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1948826956] [2025-03-08 03:14:16,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1948826956] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 03:14:16,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 03:14:16,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-08 03:14:16,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136532407] [2025-03-08 03:14:16,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 03:14:16,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 03:14:16,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 03:14:16,475 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 03:14:16,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 03:14:16,477 INFO L87 Difference]: Start difference. First operand has 40 states, 38 states have (on average 1.7105263157894737) internal successors, (65), 39 states have internal predecessors, (65), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 03:14:16,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 03:14:16,488 INFO L93 Difference]: Finished difference Result 78 states and 128 transitions. [2025-03-08 03:14:16,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 03:14:16,490 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2025-03-08 03:14:16,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 03:14:16,494 INFO L225 Difference]: With dead ends: 78 [2025-03-08 03:14:16,495 INFO L226 Difference]: Without dead ends: 37 [2025-03-08 03:14:16,496 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 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 03:14:16,498 INFO L435 NwaCegarLoop]: 55 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, 55 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 03:14:16,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 03:14:16,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2025-03-08 03:14:16,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2025-03-08 03:14:16,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.4444444444444444) internal successors, (52), 36 states have internal predecessors, (52), 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 03:14:16,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 52 transitions. [2025-03-08 03:14:16,522 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 52 transitions. Word has length 10 [2025-03-08 03:14:16,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 03:14:16,522 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 52 transitions. [2025-03-08 03:14:16,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 03:14:16,522 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 52 transitions. [2025-03-08 03:14:16,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-03-08 03:14:16,523 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 03:14:16,523 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 03:14:16,530 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 03:14:16,723 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 03:14:16,724 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 03:14:16,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 03:14:16,724 INFO L85 PathProgramCache]: Analyzing trace with hash 986827161, now seen corresponding path program 1 times [2025-03-08 03:14:16,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 03:14:16,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1842192059] [2025-03-08 03:14:16,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 03:14:16,725 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 03:14:16,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 03:14:16,727 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 03:14:16,728 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 03:14:16,771 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-08 03:14:16,925 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-08 03:14:16,926 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 03:14:16,926 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 03:14:16,932 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-08 03:14:16,934 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 03:14:19,052 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 03:14:19,053 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 03:14:19,053 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 03:14:19,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1842192059] [2025-03-08 03:14:19,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1842192059] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 03:14:19,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 03:14:19,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 03:14:19,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734349648] [2025-03-08 03:14:19,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 03:14:19,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 03:14:19,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 03:14:19,054 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 03:14:19,054 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-03-08 03:14:19,055 INFO L87 Difference]: Start difference. First operand 37 states and 52 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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 03:14:22,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 03:14:22,785 INFO L93 Difference]: Finished difference Result 43 states and 57 transitions. [2025-03-08 03:14:22,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-08 03:14:22,792 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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 12 [2025-03-08 03:14:22,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 03:14:22,792 INFO L225 Difference]: With dead ends: 43 [2025-03-08 03:14:22,792 INFO L226 Difference]: Without dead ends: 38 [2025-03-08 03:14:22,792 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2025-03-08 03:14:22,793 INFO L435 NwaCegarLoop]: 46 mSDtfsCounter, 80 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-03-08 03:14:22,793 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 181 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-03-08 03:14:22,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2025-03-08 03:14:22,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2025-03-08 03:14:22,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.4166666666666667) internal successors, (51), 36 states have internal predecessors, (51), 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 03:14:22,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2025-03-08 03:14:22,798 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 12 [2025-03-08 03:14:22,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 03:14:22,798 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2025-03-08 03:14:22,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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 03:14:22,798 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2025-03-08 03:14:22,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-03-08 03:14:22,798 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 03:14:22,798 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 03:14:22,808 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 (3)] Ended with exit code 0 [2025-03-08 03:14:22,998 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 03:14:22,999 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 03:14:22,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 03:14:22,999 INFO L85 PathProgramCache]: Analyzing trace with hash 603585663, now seen corresponding path program 1 times [2025-03-08 03:14:23,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-08 03:14:23,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1412222124] [2025-03-08 03:14:23,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 03:14:23,000 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 03:14:23,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-08 03:14:23,002 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 03:14:23,003 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 03:14:23,048 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-08 03:14:23,083 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-08 03:14:23,083 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 03:14:23,083 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 03:14:23,085 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-08 03:14:23,087 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 03:14:23,394 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 03:14:23,394 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 03:14:23,394 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-08 03:14:23,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1412222124] [2025-03-08 03:14:23,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1412222124] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 03:14:23,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 03:14:23,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 03:14:23,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656611435] [2025-03-08 03:14:23,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 03:14:23,395 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 03:14:23,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-08 03:14:23,395 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 03:14:23,395 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 03:14:23,395 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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 03:14:23,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 03:14:23,556 INFO L93 Difference]: Finished difference Result 37 states and 51 transitions. [2025-03-08 03:14:23,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 03:14:23,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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 03:14:23,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 03:14:23,556 INFO L225 Difference]: With dead ends: 37 [2025-03-08 03:14:23,556 INFO L226 Difference]: Without dead ends: 0 [2025-03-08 03:14:23,556 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2025-03-08 03:14:23,557 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 5 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 03:14:23,557 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 11 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 03:14:23,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-08 03:14:23,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-08 03:14:23,557 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 03:14:23,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-08 03:14:23,558 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2025-03-08 03:14:23,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 03:14:23,558 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-08 03:14:23,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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 03:14:23,558 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-08 03:14:23,558 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-08 03:14:23,560 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-08 03:14:23,564 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 (4)] Ended with exit code 0 [2025-03-08 03:14:23,761 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 03:14:23,763 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-08 03:14:23,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-08 03:14:23,971 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-08 03:14:23,981 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2025-03-08 03:14:23,981 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-08 03:14:23,981 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-03-08 03:14:23,982 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2025-03-08 03:14:23,982 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2025-03-08 03:14:23,982 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-08 03:14:23,982 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-03-08 03:14:23,983 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.03 03:14:23 BoogieIcfgContainer [2025-03-08 03:14:23,983 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-08 03:14:23,983 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-08 03:14:23,983 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-08 03:14:23,983 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-08 03:14:23,984 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 03:14:16" (3/4) ... [2025-03-08 03:14:23,985 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-08 03:14:23,990 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2025-03-08 03:14:23,991 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-03-08 03:14:23,991 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-08 03:14:23,991 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-08 03:14:24,089 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-08 03:14:24,089 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-08 03:14:24,089 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-08 03:14:24,093 INFO L158 Benchmark]: Toolchain (without parser) took 10740.57ms. Allocated memory is still 83.9MB. Free memory was 59.2MB in the beginning and 38.6MB in the end (delta: 20.5MB). Peak memory consumption was 22.5MB. Max. memory is 16.1GB. [2025-03-08 03:14:24,094 INFO L158 Benchmark]: CDTParser took 1.85ms. Allocated memory is still 83.9MB. Free memory was 62.7MB in the beginning and 62.7MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 03:14:24,094 INFO L158 Benchmark]: CACSL2BoogieTranslator took 207.46ms. Allocated memory is still 83.9MB. Free memory was 59.2MB in the beginning and 45.6MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 03:14:24,094 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.08ms. Allocated memory is still 83.9MB. Free memory was 45.6MB in the beginning and 44.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 03:14:24,094 INFO L158 Benchmark]: Boogie Preprocessor took 51.81ms. Allocated memory is still 83.9MB. Free memory was 44.1MB in the beginning and 41.5MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 03:14:24,094 INFO L158 Benchmark]: IcfgBuilder took 2480.70ms. Allocated memory is still 83.9MB. Free memory was 41.5MB in the beginning and 22.3MB in the end (delta: 19.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-08 03:14:24,094 INFO L158 Benchmark]: TraceAbstraction took 7854.04ms. Allocated memory is still 83.9MB. Free memory was 21.8MB in the beginning and 44.9MB in the end (delta: -23.1MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-08 03:14:24,095 INFO L158 Benchmark]: Witness Printer took 105.83ms. Allocated memory is still 83.9MB. Free memory was 44.9MB in the beginning and 38.6MB in the end (delta: 6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-08 03:14:24,095 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.85ms. Allocated memory is still 83.9MB. Free memory was 62.7MB in the beginning and 62.7MB in the end (delta: 33.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 207.46ms. Allocated memory is still 83.9MB. Free memory was 59.2MB in the beginning and 45.6MB in the end (delta: 13.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.08ms. Allocated memory is still 83.9MB. Free memory was 45.6MB in the beginning and 44.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 51.81ms. Allocated memory is still 83.9MB. Free memory was 44.1MB in the beginning and 41.5MB in the end (delta: 2.6MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 2480.70ms. Allocated memory is still 83.9MB. Free memory was 41.5MB in the beginning and 22.3MB in the end (delta: 19.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 7854.04ms. Allocated memory is still 83.9MB. Free memory was 21.8MB in the beginning and 44.9MB in the end (delta: -23.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 105.83ms. Allocated memory is still 83.9MB. Free memory was 44.9MB in the beginning and 38.6MB in the end (delta: 6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - 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: 125]: 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, 40 locations, 65 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 85 SdHoareTripleChecker+Valid, 2.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 85 mSDsluCounter, 247 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 141 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50 IncrementalHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 106 mSDtfsCounter, 50 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 14, 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 7 QuantifiedInterpolants, 226 SizeOfPredicates, 6 NumberOfNonLiveVariables, 174 ConjunctsInSsa, 23 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: 84]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 67]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 49]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 43]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 90]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 99]: Location Invariant Derived location invariant: 0 RESULT: Ultimate proved your program to be correct! [2025-03-08 03:14:24,177 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