./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1052a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1052a.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 287a5bf8444b401ce04749f3ca2bec8e2df93e28872a1de21638e5476fd8b1e2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 01:22:02,540 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 01:22:02,589 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 01:22:02,597 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 01:22:02,598 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 01:22:02,616 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 01:22:02,617 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 01:22:02,617 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 01:22:02,617 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 01:22:02,617 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 01:22:02,617 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 01:22:02,617 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 01:22:02,618 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 01:22:02,618 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 01:22:02,618 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 01:22:02,618 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 01:22:02,618 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 01:22:02,618 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 01:22:02,618 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 01:22:02,618 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 01:22:02,618 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 01:22:02,618 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 01:22:02,618 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 01:22:02,618 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 01:22:02,618 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 01:22:02,618 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 01:22:02,618 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 01:22:02,618 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 01:22:02,619 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 01:22:02,619 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:22:02,619 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:22:02,619 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:22:02,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:22:02,619 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 01:22:02,619 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:22:02,619 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:22:02,619 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:22:02,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:22:02,619 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 01:22:02,619 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 01:22:02,619 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 01:22:02,619 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 01:22:02,619 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 01:22:02,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 01:22:02,619 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 01:22:02,619 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 01:22:02,619 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 01:22:02,620 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 01:22:02,620 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 287a5bf8444b401ce04749f3ca2bec8e2df93e28872a1de21638e5476fd8b1e2 [2025-01-09 01:22:02,849 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 01:22:02,859 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 01:22:02,860 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 01:22:02,862 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 01:22:02,863 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 01:22:02,863 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1052a.c [2025-01-09 01:22:03,965 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bda483ca5/dd1c3fad5c01464ea8089acadb6bd749/FLAG20c22239b [2025-01-09 01:22:04,204 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 01:22:04,205 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1052a.c [2025-01-09 01:22:04,209 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bda483ca5/dd1c3fad5c01464ea8089acadb6bd749/FLAG20c22239b [2025-01-09 01:22:04,221 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bda483ca5/dd1c3fad5c01464ea8089acadb6bd749 [2025-01-09 01:22:04,223 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 01:22:04,224 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 01:22:04,225 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 01:22:04,225 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 01:22:04,228 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 01:22:04,228 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:22:04" (1/1) ... [2025-01-09 01:22:04,229 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49bb72c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:04, skipping insertion in model container [2025-01-09 01:22:04,229 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:22:04" (1/1) ... [2025-01-09 01:22:04,238 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 01:22:04,342 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1052a.c[1777,1790] [2025-01-09 01:22:04,343 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:22:04,348 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 01:22:04,370 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1052a.c[1777,1790] [2025-01-09 01:22:04,370 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:22:04,381 INFO L204 MainTranslator]: Completed translation [2025-01-09 01:22:04,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:04 WrapperNode [2025-01-09 01:22:04,383 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 01:22:04,384 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 01:22:04,384 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 01:22:04,384 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 01:22:04,388 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:04" (1/1) ... [2025-01-09 01:22:04,393 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:04" (1/1) ... [2025-01-09 01:22:04,403 INFO L138 Inliner]: procedures = 16, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 125 [2025-01-09 01:22:04,404 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 01:22:04,405 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 01:22:04,405 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 01:22:04,405 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 01:22:04,410 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:04" (1/1) ... [2025-01-09 01:22:04,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:04" (1/1) ... [2025-01-09 01:22:04,411 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:04" (1/1) ... [2025-01-09 01:22:04,418 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2025-01-09 01:22:04,419 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:04" (1/1) ... [2025-01-09 01:22:04,419 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:04" (1/1) ... [2025-01-09 01:22:04,427 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:04" (1/1) ... [2025-01-09 01:22:04,427 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:04" (1/1) ... [2025-01-09 01:22:04,429 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:04" (1/1) ... [2025-01-09 01:22:04,430 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:04" (1/1) ... [2025-01-09 01:22:04,431 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:04" (1/1) ... [2025-01-09 01:22:04,433 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 01:22:04,433 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 01:22:04,433 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 01:22:04,433 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 01:22:04,434 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:04" (1/1) ... [2025-01-09 01:22:04,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:22:04,445 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 01:22:04,454 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 01:22:04,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 01:22:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 01:22:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 01:22:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 01:22:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 01:22:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 01:22:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 01:22:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-01-09 01:22:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-01-09 01:22:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-01-09 01:22:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-01-09 01:22:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 01:22:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 01:22:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 01:22:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 01:22:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-01-09 01:22:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-01-09 01:22:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2025-01-09 01:22:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2025-01-09 01:22:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 01:22:04,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 01:22:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 01:22:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 01:22:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 01:22:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 01:22:04,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 01:22:04,547 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 01:22:04,548 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 01:22:04,720 INFO L? ?]: Removed 32 outVars from TransFormulas that were not future-live. [2025-01-09 01:22:04,720 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 01:22:04,729 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 01:22:04,730 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2025-01-09 01:22:04,730 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:22:04 BoogieIcfgContainer [2025-01-09 01:22:04,730 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 01:22:04,731 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 01:22:04,731 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 01:22:04,734 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 01:22:04,734 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 01:22:04" (1/3) ... [2025-01-09 01:22:04,735 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd21cf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:22:04, skipping insertion in model container [2025-01-09 01:22:04,735 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:04" (2/3) ... [2025-01-09 01:22:04,735 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fd21cf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:22:04, skipping insertion in model container [2025-01-09 01:22:04,735 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:22:04" (3/3) ... [2025-01-09 01:22:04,735 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052a.c [2025-01-09 01:22:04,745 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 01:22:04,746 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_1052a.c that has 1 procedures, 47 locations, 1 initial locations, 6 loop locations, and 4 error locations. [2025-01-09 01:22:04,779 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 01:22:04,785 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;@13d681d4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 01:22:04,786 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-01-09 01:22:04,789 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 46 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:22:04,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-01-09 01:22:04,792 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:22:04,792 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-01-09 01:22:04,793 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 1 more)] === [2025-01-09 01:22:04,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:22:04,796 INFO L85 PathProgramCache]: Analyzing trace with hash 925638, now seen corresponding path program 1 times [2025-01-09 01:22:04,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 01:22:04,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000908952] [2025-01-09 01:22:04,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:22:04,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 01:22:04,848 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 01:22:04,855 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 01:22:04,856 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:22:04,856 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 01:22:04,856 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 01:22:04,859 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 01:22:04,863 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 01:22:04,863 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:22:04,863 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 01:22:04,876 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 01:22:04,877 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 01:22:04,878 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (3 of 4 remaining) [2025-01-09 01:22:04,879 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (2 of 4 remaining) [2025-01-09 01:22:04,879 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (1 of 4 remaining) [2025-01-09 01:22:04,879 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2025-01-09 01:22:04,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 01:22:04,882 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-01-09 01:22:04,896 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 01:22:04,898 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 01:22:04 BoogieIcfgContainer [2025-01-09 01:22:04,898 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 01:22:04,900 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 01:22:04,900 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 01:22:04,900 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 01:22:04,900 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:22:04" (3/4) ... [2025-01-09 01:22:04,902 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 01:22:04,902 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 01:22:04,904 INFO L158 Benchmark]: Toolchain (without parser) took 679.88ms. Allocated memory is still 142.6MB. Free memory was 114.4MB in the beginning and 71.1MB in the end (delta: 43.3MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-01-09 01:22:04,904 INFO L158 Benchmark]: CDTParser took 0.75ms. Allocated memory is still 201.3MB. Free memory is still 123.8MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:22:04,905 INFO L158 Benchmark]: CACSL2BoogieTranslator took 158.76ms. Allocated memory is still 142.6MB. Free memory was 114.4MB in the beginning and 102.7MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:22:04,905 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.20ms. Allocated memory is still 142.6MB. Free memory was 102.7MB in the beginning and 101.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:22:04,906 INFO L158 Benchmark]: Boogie Preprocessor took 28.20ms. Allocated memory is still 142.6MB. Free memory was 101.2MB in the beginning and 99.3MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:22:04,906 INFO L158 Benchmark]: RCFGBuilder took 296.77ms. Allocated memory is still 142.6MB. Free memory was 99.3MB in the beginning and 84.1MB in the end (delta: 15.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:22:04,907 INFO L158 Benchmark]: TraceAbstraction took 167.00ms. Allocated memory is still 142.6MB. Free memory was 83.6MB in the beginning and 71.6MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:22:04,907 INFO L158 Benchmark]: Witness Printer took 2.79ms. Allocated memory is still 142.6MB. Free memory was 71.6MB in the beginning and 71.1MB in the end (delta: 496.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:22:04,908 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75ms. Allocated memory is still 201.3MB. Free memory is still 123.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 158.76ms. Allocated memory is still 142.6MB. Free memory was 114.4MB in the beginning and 102.7MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.20ms. Allocated memory is still 142.6MB. Free memory was 102.7MB in the beginning and 101.2MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.20ms. Allocated memory is still 142.6MB. Free memory was 101.2MB in the beginning and 99.3MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 296.77ms. Allocated memory is still 142.6MB. Free memory was 99.3MB in the beginning and 84.1MB in the end (delta: 15.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 167.00ms. Allocated memory is still 142.6MB. Free memory was 83.6MB in the beginning and 71.6MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 2.79ms. Allocated memory is still 142.6MB. Free memory was 71.6MB in the beginning and 71.1MB in the end (delta: 496.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: 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 19, overapproximation of someBinaryArithmeticFLOAToperation at line 77. Possible FailurePath: [L13] static const float huge_floor = 1.0e30; VAL [huge_floor=1000000000000000000000000000000] [L77] float x = 1.0f / 0.0f; [L78] CALL floor_float(x) [L16] __int32_t i0, j0; [L17] __uint32_t i, ix; VAL [huge_floor=1000000000000000000000000000000, x=1000000000000000000000000000005] [L19] ieee_float_shape_type gf_u; VAL [huge_floor=1000000000000000000000000000000, x=1000000000000000000000000000005] - UnprovableResult [Line: 51]: 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: 62]: 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: 82]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 47 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-01-09 01:22:04,920 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1052a.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 287a5bf8444b401ce04749f3ca2bec8e2df93e28872a1de21638e5476fd8b1e2 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 01:22:06,721 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 01:22:06,798 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 01:22:06,805 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 01:22:06,805 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 01:22:06,829 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 01:22:06,830 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 01:22:06,831 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 01:22:06,831 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 01:22:06,831 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 01:22:06,832 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 01:22:06,832 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 01:22:06,832 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 01:22:06,832 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 01:22:06,832 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 01:22:06,833 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 01:22:06,833 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 01:22:06,833 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 01:22:06,833 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 01:22:06,833 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 01:22:06,833 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 01:22:06,834 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 01:22:06,834 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 01:22:06,834 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 01:22:06,834 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 01:22:06,834 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 01:22:06,834 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 01:22:06,834 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 01:22:06,834 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 01:22:06,834 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 01:22:06,834 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 01:22:06,835 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:22:06,835 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:22:06,835 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:22:06,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:22:06,835 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 01:22:06,835 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:22:06,835 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:22:06,835 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:22:06,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:22:06,835 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 01:22:06,835 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 01:22:06,835 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 01:22:06,835 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 01:22:06,835 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 01:22:06,836 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 01:22:06,836 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 01:22:06,836 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 01:22:06,836 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 01:22:06,836 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 01:22:06,836 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 287a5bf8444b401ce04749f3ca2bec8e2df93e28872a1de21638e5476fd8b1e2 [2025-01-09 01:22:07,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 01:22:07,083 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 01:22:07,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 01:22:07,086 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 01:22:07,086 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 01:22:07,087 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1052a.c [2025-01-09 01:22:08,187 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/74258057e/c2d271a6731043e18cfa9d69eb64090c/FLAG23fa3838e [2025-01-09 01:22:08,381 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 01:22:08,381 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1052a.c [2025-01-09 01:22:08,387 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/74258057e/c2d271a6731043e18cfa9d69eb64090c/FLAG23fa3838e [2025-01-09 01:22:08,758 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/74258057e/c2d271a6731043e18cfa9d69eb64090c [2025-01-09 01:22:08,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 01:22:08,761 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 01:22:08,762 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 01:22:08,762 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 01:22:08,765 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 01:22:08,766 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:22:08" (1/1) ... [2025-01-09 01:22:08,766 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32634199 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:08, skipping insertion in model container [2025-01-09 01:22:08,766 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:22:08" (1/1) ... [2025-01-09 01:22:08,776 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 01:22:08,878 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1052a.c[1777,1790] [2025-01-09 01:22:08,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:22:08,888 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 01:22:08,906 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1052a.c[1777,1790] [2025-01-09 01:22:08,906 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:22:08,917 INFO L204 MainTranslator]: Completed translation [2025-01-09 01:22:08,918 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:08 WrapperNode [2025-01-09 01:22:08,918 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 01:22:08,919 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 01:22:08,919 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 01:22:08,919 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 01:22:08,923 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:08" (1/1) ... [2025-01-09 01:22:08,928 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:08" (1/1) ... [2025-01-09 01:22:08,944 INFO L138 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2025-01-09 01:22:08,945 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 01:22:08,946 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 01:22:08,946 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 01:22:08,947 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 01:22:08,952 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:08" (1/1) ... [2025-01-09 01:22:08,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:08" (1/1) ... [2025-01-09 01:22:08,956 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:08" (1/1) ... [2025-01-09 01:22:08,973 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2025-01-09 01:22:08,976 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:08" (1/1) ... [2025-01-09 01:22:08,976 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:08" (1/1) ... [2025-01-09 01:22:08,982 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:08" (1/1) ... [2025-01-09 01:22:08,983 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:08" (1/1) ... [2025-01-09 01:22:08,987 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:08" (1/1) ... [2025-01-09 01:22:08,988 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:08" (1/1) ... [2025-01-09 01:22:08,992 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:08" (1/1) ... [2025-01-09 01:22:08,995 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 01:22:08,996 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 01:22:08,996 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 01:22:08,996 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 01:22:08,997 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:08" (1/1) ... [2025-01-09 01:22:09,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:22:09,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 01:22:09,025 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 01:22:09,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 01:22:09,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 01:22:09,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 01:22:09,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-09 01:22:09,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-01-09 01:22:09,045 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-01-09 01:22:09,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 01:22:09,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2025-01-09 01:22:09,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2025-01-09 01:22:09,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2025-01-09 01:22:09,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2025-01-09 01:22:09,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-01-09 01:22:09,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-01-09 01:22:09,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-01-09 01:22:09,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-01-09 01:22:09,046 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 01:22:09,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 01:22:09,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2025-01-09 01:22:09,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2025-01-09 01:22:09,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2025-01-09 01:22:09,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2025-01-09 01:22:09,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-01-09 01:22:09,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-01-09 01:22:09,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-01-09 01:22:09,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-01-09 01:22:09,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 01:22:09,109 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 01:22:09,110 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 01:22:09,381 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2025-01-09 01:22:09,381 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 01:22:09,387 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 01:22:09,389 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2025-01-09 01:22:09,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:22:09 BoogieIcfgContainer [2025-01-09 01:22:09,389 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 01:22:09,391 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 01:22:09,392 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 01:22:09,395 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 01:22:09,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 01:22:08" (1/3) ... [2025-01-09 01:22:09,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad5dca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:22:09, skipping insertion in model container [2025-01-09 01:22:09,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:22:08" (2/3) ... [2025-01-09 01:22:09,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad5dca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:22:09, skipping insertion in model container [2025-01-09 01:22:09,397 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:22:09" (3/3) ... [2025-01-09 01:22:09,398 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_1052a.c [2025-01-09 01:22:09,407 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 01:22:09,408 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_1052a.c that has 1 procedures, 29 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2025-01-09 01:22:09,435 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 01:22:09,442 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;@154a420a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 01:22:09,442 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 01:22:09,444 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 28 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:22:09,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-01-09 01:22:09,448 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:22:09,448 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:22:09,449 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:22:09,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:22:09,453 INFO L85 PathProgramCache]: Analyzing trace with hash 1142239639, now seen corresponding path program 1 times [2025-01-09 01:22:09,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:22:09,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [781111440] [2025-01-09 01:22:09,463 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:22:09,463 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:22:09,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:22:09,466 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-01-09 01:22:09,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2025-01-09 01:22:09,514 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-09 01:22:09,559 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-09 01:22:09,559 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:22:09,560 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:22:09,562 INFO L256 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 01:22:09,565 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:22:09,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 01:22:09,577 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:22:09,578 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:22:09,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [781111440] [2025-01-09 01:22:09,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [781111440] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:22:09,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:22:09,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 01:22:09,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838643162] [2025-01-09 01:22:09,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:22:09,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 01:22:09,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:22:09,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 01:22:09,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 01:22:09,597 INFO L87 Difference]: Start difference. First operand has 29 states, 27 states have (on average 1.6296296296296295) internal successors, (44), 28 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 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) [2025-01-09 01:22:09,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:22:09,607 INFO L93 Difference]: Finished difference Result 56 states and 86 transitions. [2025-01-09 01:22:09,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 01:22:09,609 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 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 [2025-01-09 01:22:09,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:22:09,613 INFO L225 Difference]: With dead ends: 56 [2025-01-09 01:22:09,613 INFO L226 Difference]: Without dead ends: 26 [2025-01-09 01:22:09,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 01:22:09,619 INFO L435 NwaCegarLoop]: 37 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, 37 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 01:22:09,620 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 01:22:09,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2025-01-09 01:22:09,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2025-01-09 01:22:09,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.36) internal successors, (34), 25 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:22:09,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2025-01-09 01:22:09,643 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 12 [2025-01-09 01:22:09,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:22:09,643 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2025-01-09 01:22:09,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 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) [2025-01-09 01:22:09,644 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2025-01-09 01:22:09,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2025-01-09 01:22:09,644 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:22:09,645 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:22:09,650 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2025-01-09 01:22:09,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:22:09,845 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:22:09,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:22:09,846 INFO L85 PathProgramCache]: Analyzing trace with hash -440467985, now seen corresponding path program 1 times [2025-01-09 01:22:09,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:22:09,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571838137] [2025-01-09 01:22:09,846 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:22:09,847 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:22:09,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:22:09,848 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-01-09 01:22:09,849 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2025-01-09 01:22:09,894 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 14 statements into 1 equivalence classes. [2025-01-09 01:22:09,946 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 14 of 14 statements. [2025-01-09 01:22:09,946 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:22:09,946 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:22:09,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-01-09 01:22:09,951 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:22:10,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 01:22:10,149 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:22:10,149 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:22:10,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571838137] [2025-01-09 01:22:10,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [571838137] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:22:10,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:22:10,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 01:22:10,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825651910] [2025-01-09 01:22:10,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:22:10,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 01:22:10,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:22:10,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 01:22:10,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-01-09 01:22:10,151 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. Second operand has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:22:10,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:22:10,429 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2025-01-09 01:22:10,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 01:22:10,430 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 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 14 [2025-01-09 01:22:10,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:22:10,432 INFO L225 Difference]: With dead ends: 34 [2025-01-09 01:22:10,432 INFO L226 Difference]: Without dead ends: 25 [2025-01-09 01:22:10,432 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2025-01-09 01:22:10,432 INFO L435 NwaCegarLoop]: 21 mSDtfsCounter, 51 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 01:22:10,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 129 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 01:22:10,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2025-01-09 01:22:10,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2025-01-09 01:22:10,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.25) internal successors, (30), 24 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:22:10,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2025-01-09 01:22:10,434 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 14 [2025-01-09 01:22:10,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:22:10,435 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2025-01-09 01:22:10,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:22:10,435 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2025-01-09 01:22:10,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2025-01-09 01:22:10,435 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:22:10,435 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:22:10,441 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2025-01-09 01:22:10,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:22:10,639 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:22:10,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:22:10,639 INFO L85 PathProgramCache]: Analyzing trace with hash 1708288714, now seen corresponding path program 1 times [2025-01-09 01:22:10,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:22:10,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2011600313] [2025-01-09 01:22:10,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:22:10,640 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:22:10,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:22:10,642 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-01-09 01:22:10,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2025-01-09 01:22:10,673 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-01-09 01:22:10,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-01-09 01:22:10,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:22:10,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:22:10,733 INFO L256 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-01-09 01:22:10,735 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:22:10,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 01:22:10,831 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:22:10,831 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:22:10,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2011600313] [2025-01-09 01:22:10,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2011600313] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:22:10,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:22:10,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 01:22:10,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566581138] [2025-01-09 01:22:10,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:22:10,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 01:22:10,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:22:10,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 01:22:10,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 01:22:10,833 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:22:10,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:22:10,894 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2025-01-09 01:22:10,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 01:22:10,894 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 18 [2025-01-09 01:22:10,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:22:10,894 INFO L225 Difference]: With dead ends: 25 [2025-01-09 01:22:10,894 INFO L226 Difference]: Without dead ends: 0 [2025-01-09 01:22:10,894 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-01-09 01:22:10,895 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 4 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 01:22:10,895 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 7 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 01:22:10,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-01-09 01:22:10,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-01-09 01:22:10,895 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) [2025-01-09 01:22:10,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-01-09 01:22:10,896 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2025-01-09 01:22:10,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:22:10,896 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-09 01:22:10,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:22:10,896 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-01-09 01:22:10,896 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-01-09 01:22:10,898 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 01:22:10,903 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2025-01-09 01:22:11,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-01-09 01:22:11,101 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-01-09 01:22:11,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-01-09 01:22:11,132 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 01:22:11,139 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-01-09 01:22:11,140 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-01-09 01:22:11,140 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-01-09 01:22:11,141 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-01-09 01:22:11,141 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-01-09 01:22:11,141 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-01-09 01:22:11,142 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 01:22:11 BoogieIcfgContainer [2025-01-09 01:22:11,142 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 01:22:11,142 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 01:22:11,142 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 01:22:11,142 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 01:22:11,143 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:22:09" (3/4) ... [2025-01-09 01:22:11,144 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 01:22:11,154 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2025-01-09 01:22:11,154 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-01-09 01:22:11,154 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-09 01:22:11,154 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 01:22:11,207 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 01:22:11,207 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 01:22:11,207 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 01:22:11,208 INFO L158 Benchmark]: Toolchain (without parser) took 2446.55ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 50.7MB in the end (delta: 41.9MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2025-01-09 01:22:11,208 INFO L158 Benchmark]: CDTParser took 1.74ms. Allocated memory is still 83.9MB. Free memory is still 61.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:22:11,208 INFO L158 Benchmark]: CACSL2BoogieTranslator took 156.19ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 80.3MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:22:11,208 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.51ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 78.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:22:11,208 INFO L158 Benchmark]: Boogie Preprocessor took 49.91ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 76.7MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:22:11,209 INFO L158 Benchmark]: RCFGBuilder took 393.00ms. Allocated memory is still 117.4MB. Free memory was 76.7MB in the beginning and 63.3MB in the end (delta: 13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:22:11,209 INFO L158 Benchmark]: TraceAbstraction took 1750.37ms. Allocated memory is still 117.4MB. Free memory was 62.9MB in the beginning and 56.6MB in the end (delta: 6.3MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. [2025-01-09 01:22:11,209 INFO L158 Benchmark]: Witness Printer took 65.12ms. Allocated memory is still 117.4MB. Free memory was 56.6MB in the beginning and 50.7MB in the end (delta: 5.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:22:11,211 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.74ms. Allocated memory is still 83.9MB. Free memory is still 61.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 156.19ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 80.3MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.51ms. Allocated memory is still 117.4MB. Free memory was 80.3MB in the beginning and 78.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 49.91ms. Allocated memory is still 117.4MB. Free memory was 78.8MB in the beginning and 76.7MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 393.00ms. Allocated memory is still 117.4MB. Free memory was 76.7MB in the beginning and 63.3MB in the end (delta: 13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1750.37ms. Allocated memory is still 117.4MB. Free memory was 62.9MB in the beginning and 56.6MB in the end (delta: 6.3MB). Peak memory consumption was 13.0MB. Max. memory is 16.1GB. * Witness Printer took 65.12ms. Allocated memory is still 117.4MB. Free memory was 56.6MB in the beginning and 50.7MB in the end (delta: 5.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - 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: 82]: 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, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 55 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 55 mSDsluCounter, 173 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 112 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 61 mSDtfsCounter, 91 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 41 ConstructedInterpolants, 4 QuantifiedInterpolants, 234 SizeOfPredicates, 9 NumberOfNonLiveVariables, 157 ConjunctsInSsa, 28 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: 50]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2025-01-09 01:22:11,231 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE