./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0921.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_0921.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 e738debe116f53547f4d856a26a196b1ac73097502894c4fa34f78b8e888418f --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 01:20:34,311 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 01:20:34,401 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 01:20:34,406 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 01:20:34,407 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 01:20:34,432 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 01:20:34,434 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 01:20:34,434 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 01:20:34,435 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 01:20:34,435 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 01:20:34,436 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 01:20:34,436 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 01:20:34,436 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 01:20:34,436 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 01:20:34,437 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 01:20:34,437 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 01:20:34,437 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 01:20:34,437 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 01:20:34,437 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 01:20:34,437 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 01:20:34,437 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 01:20:34,437 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 01:20:34,437 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 01:20:34,437 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 01:20:34,437 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 01:20:34,437 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 01:20:34,437 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 01:20:34,437 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 01:20:34,437 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 01:20:34,438 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:20:34,438 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:20:34,438 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:20:34,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:20:34,439 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 01:20:34,439 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:20:34,439 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:20:34,439 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:20:34,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:20:34,439 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 01:20:34,440 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 01:20:34,440 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 01:20:34,440 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 01:20:34,440 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 01:20:34,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 01:20:34,440 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 01:20:34,440 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 01:20:34,441 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 01:20:34,441 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 01:20:34,441 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 -> e738debe116f53547f4d856a26a196b1ac73097502894c4fa34f78b8e888418f [2025-01-09 01:20:34,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 01:20:34,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 01:20:34,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 01:20:34,757 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 01:20:34,757 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 01:20:34,758 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0921.c [2025-01-09 01:20:36,100 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d5f14d67b/aa1722d954f4402bacafb712f9d61d0c/FLAGa627fa14c [2025-01-09 01:20:36,362 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 01:20:36,362 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0921.c [2025-01-09 01:20:36,369 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d5f14d67b/aa1722d954f4402bacafb712f9d61d0c/FLAGa627fa14c [2025-01-09 01:20:36,382 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d5f14d67b/aa1722d954f4402bacafb712f9d61d0c [2025-01-09 01:20:36,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 01:20:36,386 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 01:20:36,387 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 01:20:36,388 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 01:20:36,392 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 01:20:36,392 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:20:36" (1/1) ... [2025-01-09 01:20:36,393 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16625fb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:36, skipping insertion in model container [2025-01-09 01:20:36,393 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:20:36" (1/1) ... [2025-01-09 01:20:36,409 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 01:20:36,617 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_0921.c[3212,3225] [2025-01-09 01:20:36,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:20:36,631 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 01:20:36,671 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_0921.c[3212,3225] [2025-01-09 01:20:36,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:20:36,695 INFO L204 MainTranslator]: Completed translation [2025-01-09 01:20:36,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:36 WrapperNode [2025-01-09 01:20:36,697 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 01:20:36,699 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 01:20:36,699 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 01:20:36,699 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 01:20:36,706 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:36" (1/1) ... [2025-01-09 01:20:36,713 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:36" (1/1) ... [2025-01-09 01:20:36,742 INFO L138 Inliner]: procedures = 18, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 179 [2025-01-09 01:20:36,742 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 01:20:36,743 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 01:20:36,744 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 01:20:36,744 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 01:20:36,753 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:36" (1/1) ... [2025-01-09 01:20:36,753 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:36" (1/1) ... [2025-01-09 01:20:36,760 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:36" (1/1) ... [2025-01-09 01:20:36,783 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 01:20:36,783 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:36" (1/1) ... [2025-01-09 01:20:36,783 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:36" (1/1) ... [2025-01-09 01:20:36,796 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:36" (1/1) ... [2025-01-09 01:20:36,797 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:36" (1/1) ... [2025-01-09 01:20:36,805 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:36" (1/1) ... [2025-01-09 01:20:36,811 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:36" (1/1) ... [2025-01-09 01:20:36,812 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:36" (1/1) ... [2025-01-09 01:20:36,814 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 01:20:36,819 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 01:20:36,819 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 01:20:36,820 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 01:20:36,821 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:36" (1/1) ... [2025-01-09 01:20:36,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:20:36,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 01:20:36,852 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 01:20:36,856 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 01:20:36,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 01:20:36,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 01:20:36,884 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 01:20:36,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 01:20:36,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 01:20:36,885 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 01:20:36,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-01-09 01:20:36,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-01-09 01:20:36,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-01-09 01:20:36,885 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-01-09 01:20:36,885 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 01:20:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 01:20:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 01:20:36,886 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 01:20:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-01-09 01:20:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-01-09 01:20:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2025-01-09 01:20:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2025-01-09 01:20:36,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 01:20:36,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 01:20:36,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 01:20:36,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 01:20:36,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 01:20:36,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 01:20:36,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 01:20:36,986 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 01:20:36,987 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 01:20:37,211 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2025-01-09 01:20:37,212 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 01:20:37,224 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 01:20:37,224 INFO L312 CfgBuilder]: Removed 6 assume(true) statements. [2025-01-09 01:20:37,225 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:20:37 BoogieIcfgContainer [2025-01-09 01:20:37,226 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 01:20:37,228 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 01:20:37,229 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 01:20:37,233 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 01:20:37,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 01:20:36" (1/3) ... [2025-01-09 01:20:37,235 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3603aca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:20:37, skipping insertion in model container [2025-01-09 01:20:37,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:36" (2/3) ... [2025-01-09 01:20:37,235 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3603aca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:20:37, skipping insertion in model container [2025-01-09 01:20:37,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:20:37" (3/3) ... [2025-01-09 01:20:37,236 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_0921.c [2025-01-09 01:20:37,249 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 01:20:37,250 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_0921.c that has 1 procedures, 52 locations, 1 initial locations, 6 loop locations, and 4 error locations. [2025-01-09 01:20:37,316 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 01:20:37,328 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;@4aedb768, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 01:20:37,329 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-01-09 01:20:37,334 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 47 states have (on average 1.7234042553191489) internal successors, (81), 51 states have internal predecessors, (81), 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 01:20:37,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-01-09 01:20:37,339 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:20:37,339 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-01-09 01:20:37,340 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 01:20:37,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:20:37,345 INFO L85 PathProgramCache]: Analyzing trace with hash 925638, now seen corresponding path program 1 times [2025-01-09 01:20:37,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 01:20:37,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635641617] [2025-01-09 01:20:37,355 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:20:37,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 01:20:37,435 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 01:20:37,453 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 01:20:37,454 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:20:37,454 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 01:20:37,454 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 01:20:37,463 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 01:20:37,471 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 01:20:37,473 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:20:37,474 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 01:20:37,496 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 01:20:37,499 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 01:20:37,501 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (3 of 4 remaining) [2025-01-09 01:20:37,503 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (2 of 4 remaining) [2025-01-09 01:20:37,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (1 of 4 remaining) [2025-01-09 01:20:37,504 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2025-01-09 01:20:37,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 01:20:37,511 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-01-09 01:20:37,534 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 01:20:37,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 01:20:37 BoogieIcfgContainer [2025-01-09 01:20:37,541 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 01:20:37,542 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 01:20:37,542 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 01:20:37,542 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 01:20:37,543 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:20:37" (3/4) ... [2025-01-09 01:20:37,545 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 01:20:37,547 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 01:20:37,550 INFO L158 Benchmark]: Toolchain (without parser) took 1162.48ms. Allocated memory is still 142.6MB. Free memory was 112.1MB in the beginning and 64.7MB in the end (delta: 47.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-01-09 01:20:37,550 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 201.3MB. Free memory is still 124.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:20:37,551 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.47ms. Allocated memory is still 142.6MB. Free memory was 111.6MB in the beginning and 99.0MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:20:37,552 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.71ms. Allocated memory is still 142.6MB. Free memory was 99.0MB in the beginning and 97.4MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:20:37,552 INFO L158 Benchmark]: Boogie Preprocessor took 71.42ms. Allocated memory is still 142.6MB. Free memory was 97.4MB in the beginning and 94.6MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:20:37,552 INFO L158 Benchmark]: RCFGBuilder took 406.76ms. Allocated memory is still 142.6MB. Free memory was 94.6MB in the beginning and 78.3MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 01:20:37,555 INFO L158 Benchmark]: TraceAbstraction took 313.39ms. Allocated memory is still 142.6MB. Free memory was 77.9MB in the beginning and 64.8MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:20:37,556 INFO L158 Benchmark]: Witness Printer took 5.84ms. Allocated memory is still 142.6MB. Free memory was 64.8MB in the beginning and 64.7MB in the end (delta: 124.6kB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:20:37,557 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 201.3MB. Free memory is still 124.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 310.47ms. Allocated memory is still 142.6MB. Free memory was 111.6MB in the beginning and 99.0MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.71ms. Allocated memory is still 142.6MB. Free memory was 99.0MB in the beginning and 97.4MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.42ms. Allocated memory is still 142.6MB. Free memory was 97.4MB in the beginning and 94.6MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 406.76ms. Allocated memory is still 142.6MB. Free memory was 94.6MB in the beginning and 78.3MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 313.39ms. Allocated memory is still 142.6MB. Free memory was 77.9MB in the beginning and 64.8MB in the end (delta: 13.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 5.84ms. Allocated memory is still 142.6MB. Free memory was 64.8MB in the beginning and 64.7MB in the end (delta: 124.6kB). 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: 39]: 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 39, overapproximation of someBinaryArithmeticFLOAToperation at line 121. Possible FailurePath: [L26-L30] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L32] static const float zero_log = 0.0; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L121] float x = 0.0f / 0.0f; [L122] CALL __ieee754_logf(x) [L35] float hfsq, f, s, z, R, w, t1, t2, dk; [L36] __int32_t k, ix, i, j; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L39] ieee_float_shape_type gf_u; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] - UnprovableResult [Line: 55]: 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: 64]: 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: 126]: 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, 52 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred 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 01:20:37,578 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_0921.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 e738debe116f53547f4d856a26a196b1ac73097502894c4fa34f78b8e888418f --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 01:20:40,066 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 01:20:40,203 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 01:20:40,212 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 01:20:40,212 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 01:20:40,244 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 01:20:40,245 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 01:20:40,245 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 01:20:40,246 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 01:20:40,246 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 01:20:40,247 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 01:20:40,247 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 01:20:40,248 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 01:20:40,248 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 01:20:40,248 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 01:20:40,248 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 01:20:40,249 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 01:20:40,249 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 01:20:40,249 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 01:20:40,249 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 01:20:40,249 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 01:20:40,249 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 01:20:40,249 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 01:20:40,250 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 01:20:40,250 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 01:20:40,250 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 01:20:40,250 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 01:20:40,250 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 01:20:40,250 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 01:20:40,250 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 01:20:40,250 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 01:20:40,250 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:20:40,250 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:20:40,251 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:20:40,251 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:20:40,251 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 01:20:40,251 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:20:40,251 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:20:40,251 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:20:40,252 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:20:40,252 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 01:20:40,252 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 01:20:40,252 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 01:20:40,252 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 01:20:40,252 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 01:20:40,252 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 01:20:40,253 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 01:20:40,253 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 01:20:40,253 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 01:20:40,253 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 01:20:40,253 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 -> e738debe116f53547f4d856a26a196b1ac73097502894c4fa34f78b8e888418f [2025-01-09 01:20:40,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 01:20:40,570 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 01:20:40,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 01:20:40,574 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 01:20:40,574 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 01:20:40,575 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0921.c [2025-01-09 01:20:41,888 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1c5da09d2/ef78a95a91024ecda290c74bc2721ad4/FLAGd42ce1222 [2025-01-09 01:20:42,151 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 01:20:42,152 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0921.c [2025-01-09 01:20:42,163 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1c5da09d2/ef78a95a91024ecda290c74bc2721ad4/FLAGd42ce1222 [2025-01-09 01:20:42,461 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1c5da09d2/ef78a95a91024ecda290c74bc2721ad4 [2025-01-09 01:20:42,465 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 01:20:42,467 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 01:20:42,469 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 01:20:42,469 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 01:20:42,473 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 01:20:42,474 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:20:42" (1/1) ... [2025-01-09 01:20:42,475 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64cf14ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:42, skipping insertion in model container [2025-01-09 01:20:42,475 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:20:42" (1/1) ... [2025-01-09 01:20:42,491 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 01:20:42,688 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_0921.c[3212,3225] [2025-01-09 01:20:42,692 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:20:42,713 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 01:20:42,743 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_0921.c[3212,3225] [2025-01-09 01:20:42,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:20:42,761 INFO L204 MainTranslator]: Completed translation [2025-01-09 01:20:42,762 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:42 WrapperNode [2025-01-09 01:20:42,762 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 01:20:42,763 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 01:20:42,765 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 01:20:42,765 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 01:20:42,770 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:42" (1/1) ... [2025-01-09 01:20:42,783 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:42" (1/1) ... [2025-01-09 01:20:42,809 INFO L138 Inliner]: procedures = 21, calls = 25, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 139 [2025-01-09 01:20:42,810 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 01:20:42,812 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 01:20:42,812 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 01:20:42,812 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 01:20:42,819 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:42" (1/1) ... [2025-01-09 01:20:42,819 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:42" (1/1) ... [2025-01-09 01:20:42,825 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:42" (1/1) ... [2025-01-09 01:20:42,844 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 01:20:42,844 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:42" (1/1) ... [2025-01-09 01:20:42,844 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:42" (1/1) ... [2025-01-09 01:20:42,857 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:42" (1/1) ... [2025-01-09 01:20:42,858 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:42" (1/1) ... [2025-01-09 01:20:42,861 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:42" (1/1) ... [2025-01-09 01:20:42,864 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:42" (1/1) ... [2025-01-09 01:20:42,865 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:42" (1/1) ... [2025-01-09 01:20:42,868 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 01:20:42,870 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 01:20:42,870 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 01:20:42,870 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 01:20:42,871 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:42" (1/1) ... [2025-01-09 01:20:42,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:20:42,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 01:20:42,908 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 01:20:42,912 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 01:20:42,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 01:20:42,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 01:20:42,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-09 01:20:42,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-01-09 01:20:42,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-01-09 01:20:42,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 01:20:42,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2025-01-09 01:20:42,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2025-01-09 01:20:42,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2025-01-09 01:20:42,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2025-01-09 01:20:42,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-01-09 01:20:42,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-01-09 01:20:42,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-01-09 01:20:42,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-01-09 01:20:42,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 01:20:42,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 01:20:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2025-01-09 01:20:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2025-01-09 01:20:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2025-01-09 01:20:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2025-01-09 01:20:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-01-09 01:20:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-01-09 01:20:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-01-09 01:20:42,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-01-09 01:20:42,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 01:20:43,036 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 01:20:43,037 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 01:21:10,852 INFO L? ?]: Removed 56 outVars from TransFormulas that were not future-live. [2025-01-09 01:21:10,852 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 01:21:10,862 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 01:21:10,862 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2025-01-09 01:21:10,863 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:21:10 BoogieIcfgContainer [2025-01-09 01:21:10,863 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 01:21:10,865 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 01:21:10,865 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 01:21:10,869 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 01:21:10,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 01:20:42" (1/3) ... [2025-01-09 01:21:10,870 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a322b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:21:10, skipping insertion in model container [2025-01-09 01:21:10,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:20:42" (2/3) ... [2025-01-09 01:21:10,870 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17a322b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:21:10, skipping insertion in model container [2025-01-09 01:21:10,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:21:10" (3/3) ... [2025-01-09 01:21:10,871 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_0921.c [2025-01-09 01:21:10,883 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 01:21:10,885 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_0921.c that has 1 procedures, 30 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2025-01-09 01:21:10,928 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 01:21:10,940 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;@51144ebc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 01:21:10,940 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 01:21:10,943 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.6785714285714286) internal successors, (47), 29 states have internal predecessors, (47), 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 01:21:10,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-09 01:21:10,947 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:21:10,947 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:21:10,947 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:21:10,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:21:10,951 INFO L85 PathProgramCache]: Analyzing trace with hash -986955119, now seen corresponding path program 1 times [2025-01-09 01:21:10,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:21:10,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503176173] [2025-01-09 01:21:10,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:21:10,959 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 01:21:10,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:21:10,961 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 01:21:10,963 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 01:21:11,022 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-09 01:21:11,370 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-09 01:21:11,370 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:21:11,370 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:21:11,387 INFO L256 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 01:21:11,390 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:21:11,402 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 01:21:11,402 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:21:11,403 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:21:11,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503176173] [2025-01-09 01:21:11,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [503176173] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:21:11,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:21:11,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 01:21:11,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233261704] [2025-01-09 01:21:11,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:21:11,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 01:21:11,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:21:11,422 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 01:21:11,423 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 01:21:11,425 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.6785714285714286) internal successors, (47), 29 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:21:11,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:21:11,434 INFO L93 Difference]: Finished difference Result 58 states and 92 transitions. [2025-01-09 01:21:11,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 01:21:11,436 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-01-09 01:21:11,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:21:11,440 INFO L225 Difference]: With dead ends: 58 [2025-01-09 01:21:11,440 INFO L226 Difference]: Without dead ends: 27 [2025-01-09 01:21:11,442 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 01:21:11,444 INFO L435 NwaCegarLoop]: 40 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, 40 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 01:21:11,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 01:21:11,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2025-01-09 01:21:11,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2025-01-09 01:21:11,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 26 states have internal predecessors, (37), 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 01:21:11,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2025-01-09 01:21:11,470 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 9 [2025-01-09 01:21:11,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:21:11,471 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2025-01-09 01:21:11,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:21:11,471 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2025-01-09 01:21:11,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-01-09 01:21:11,471 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:21:11,471 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:21:11,490 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2025-01-09 01:21:11,673 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 01:21:11,674 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:21:11,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:21:11,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1893571602, now seen corresponding path program 1 times [2025-01-09 01:21:11,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:21:11,675 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [205429843] [2025-01-09 01:21:11,675 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:21:11,675 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 01:21:11,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:21:11,678 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 01:21:11,679 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 01:21:11,734 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-09 01:21:12,062 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-09 01:21:12,063 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:21:12,063 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:21:12,080 INFO L256 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-09 01:21:12,083 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:21:12,462 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 01:21:12,463 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:21:12,463 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:21:12,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [205429843] [2025-01-09 01:21:12,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [205429843] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:21:12,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:21:12,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 01:21:12,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062929143] [2025-01-09 01:21:12,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:21:12,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 01:21:12,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:21:12,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 01:21:12,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 01:21:12,468 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:21:17,801 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.26s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2025-01-09 01:21:17,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:21:17,803 INFO L93 Difference]: Finished difference Result 32 states and 41 transitions. [2025-01-09 01:21:17,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 01:21:17,895 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-01-09 01:21:17,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:21:17,896 INFO L225 Difference]: With dead ends: 32 [2025-01-09 01:21:17,896 INFO L226 Difference]: Without dead ends: 27 [2025-01-09 01:21:17,896 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-01-09 01:21:17,897 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 16 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2025-01-09 01:21:17,897 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 63 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2025-01-09 01:21:17,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2025-01-09 01:21:17,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2025-01-09 01:21:17,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 26 states have internal predecessors, (36), 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 01:21:17,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2025-01-09 01:21:17,901 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2025-01-09 01:21:17,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:21:17,901 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2025-01-09 01:21:17,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:21:17,901 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2025-01-09 01:21:17,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-01-09 01:21:17,902 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:21:17,902 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:21:17,914 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 01:21:18,102 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 01:21:18,103 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:21:18,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:21:18,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1413983758, now seen corresponding path program 1 times [2025-01-09 01:21:18,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:21:18,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1268694913] [2025-01-09 01:21:18,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:21:18,104 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 01:21:18,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:21:18,106 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 01:21:18,107 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 01:21:18,151 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-09 01:21:18,484 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-09 01:21:18,485 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:21:18,485 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:21:18,497 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-09 01:21:18,499 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:21:19,694 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 01:21:19,694 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:21:19,694 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:21:19,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1268694913] [2025-01-09 01:21:19,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1268694913] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:21:19,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:21:19,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 01:21:19,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923085568] [2025-01-09 01:21:19,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:21:19,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 01:21:19,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:21:19,695 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 01:21:19,695 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2025-01-09 01:21:19,696 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:21:25,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.24s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 01:21:29,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 01:21:33,294 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 01:21:37,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 01:21:41,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 01:21:44,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.12s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 01:21:49,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 01:21:53,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 01:21:57,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 01:22:01,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 01:22:05,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 01:22:09,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 01:22:14,003 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 01:22:16,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers []