./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/double_req_bl_0730a.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/double_req_bl_0730a.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 f30b944defc533c0c8d7b32fd32a0167e19c43437457905bc3a34530c4363136 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 01:08:08,175 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 01:08:08,241 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 01:08:08,246 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 01:08:08,250 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 01:08:08,270 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 01:08:08,270 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 01:08:08,270 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 01:08:08,271 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 01:08:08,271 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 01:08:08,271 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 01:08:08,271 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 01:08:08,271 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 01:08:08,271 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 01:08:08,271 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 01:08:08,271 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 01:08:08,271 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 01:08:08,272 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 01:08:08,273 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 01:08:08,273 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 01:08:08,273 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 01:08:08,273 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 01:08:08,273 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 01:08:08,273 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 01:08:08,273 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 01:08:08,273 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 01:08:08,273 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 01:08:08,273 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 01:08:08,273 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 01:08:08,273 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:08:08,274 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:08:08,274 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:08:08,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:08:08,274 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 01:08:08,274 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:08:08,274 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:08:08,274 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:08:08,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:08:08,274 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 01:08:08,274 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 01:08:08,274 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 01:08:08,274 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 01:08:08,274 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 01:08:08,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 01:08:08,275 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 01:08:08,275 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 01:08:08,275 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 01:08:08,275 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 01:08:08,275 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 -> f30b944defc533c0c8d7b32fd32a0167e19c43437457905bc3a34530c4363136 [2025-01-09 01:08:08,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 01:08:08,543 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 01:08:08,545 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 01:08:08,546 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 01:08:08,547 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 01:08:08,548 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0730a.c [2025-01-09 01:08:09,756 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/160122041/38d19423b0d84b52a4db38cd75ac4b30/FLAGfeee191ef [2025-01-09 01:08:10,032 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 01:08:10,033 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0730a.c [2025-01-09 01:08:10,045 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/160122041/38d19423b0d84b52a4db38cd75ac4b30/FLAGfeee191ef [2025-01-09 01:08:10,341 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/160122041/38d19423b0d84b52a4db38cd75ac4b30 [2025-01-09 01:08:10,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 01:08:10,344 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 01:08:10,345 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 01:08:10,345 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 01:08:10,348 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 01:08:10,349 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:08:10" (1/1) ... [2025-01-09 01:08:10,350 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c2d6a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:10, skipping insertion in model container [2025-01-09 01:08:10,350 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:08:10" (1/1) ... [2025-01-09 01:08:10,362 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 01:08:10,498 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/double_req_bl_0730a.c[3437,3450] [2025-01-09 01:08:10,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:08:10,508 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 01:08:10,556 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/double_req_bl_0730a.c[3437,3450] [2025-01-09 01:08:10,556 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:08:10,572 INFO L204 MainTranslator]: Completed translation [2025-01-09 01:08:10,573 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:10 WrapperNode [2025-01-09 01:08:10,573 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 01:08:10,574 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 01:08:10,574 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 01:08:10,574 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 01:08:10,579 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:10" (1/1) ... [2025-01-09 01:08:10,586 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:10" (1/1) ... [2025-01-09 01:08:10,609 INFO L138 Inliner]: procedures = 18, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 345 [2025-01-09 01:08:10,610 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 01:08:10,610 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 01:08:10,610 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 01:08:10,610 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 01:08:10,625 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:10" (1/1) ... [2025-01-09 01:08:10,625 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:10" (1/1) ... [2025-01-09 01:08:10,628 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:10" (1/1) ... [2025-01-09 01:08:10,651 INFO L175 MemorySlicer]: Split 11 memory accesses to 4 slices as follows [2, 3, 3, 3]. 27 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 4 writes are split as follows [0, 2, 1, 1]. [2025-01-09 01:08:10,651 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:10" (1/1) ... [2025-01-09 01:08:10,651 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:10" (1/1) ... [2025-01-09 01:08:10,664 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:10" (1/1) ... [2025-01-09 01:08:10,666 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:10" (1/1) ... [2025-01-09 01:08:10,672 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:10" (1/1) ... [2025-01-09 01:08:10,675 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:10" (1/1) ... [2025-01-09 01:08:10,676 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:10" (1/1) ... [2025-01-09 01:08:10,681 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 01:08:10,682 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 01:08:10,682 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 01:08:10,682 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 01:08:10,683 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:10" (1/1) ... [2025-01-09 01:08:10,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:08:10,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 01:08:10,715 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 01:08:10,719 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 01:08:10,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 01:08:10,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 01:08:10,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 01:08:10,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 01:08:10,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 01:08:10,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 01:08:10,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-01-09 01:08:10,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-01-09 01:08:10,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-01-09 01:08:10,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-01-09 01:08:10,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 01:08:10,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 01:08:10,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 01:08:10,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 01:08:10,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-01-09 01:08:10,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-01-09 01:08:10,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2025-01-09 01:08:10,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2025-01-09 01:08:10,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 01:08:10,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 01:08:10,744 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 01:08:10,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 01:08:10,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 01:08:10,746 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 01:08:10,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 01:08:10,822 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 01:08:10,824 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 01:08:11,305 INFO L? ?]: Removed 71 outVars from TransFormulas that were not future-live. [2025-01-09 01:08:11,305 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 01:08:11,315 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 01:08:11,315 INFO L312 CfgBuilder]: Removed 7 assume(true) statements. [2025-01-09 01:08:11,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:08:11 BoogieIcfgContainer [2025-01-09 01:08:11,315 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 01:08:11,317 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 01:08:11,317 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 01:08:11,323 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 01:08:11,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 01:08:10" (1/3) ... [2025-01-09 01:08:11,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38415edf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:08:11, skipping insertion in model container [2025-01-09 01:08:11,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:10" (2/3) ... [2025-01-09 01:08:11,325 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38415edf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:08:11, skipping insertion in model container [2025-01-09 01:08:11,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:08:11" (3/3) ... [2025-01-09 01:08:11,326 INFO L128 eAbstractionObserver]: Analyzing ICFG double_req_bl_0730a.c [2025-01-09 01:08:11,336 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 01:08:11,337 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG double_req_bl_0730a.c that has 1 procedures, 126 locations, 1 initial locations, 10 loop locations, and 4 error locations. [2025-01-09 01:08:11,379 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 01:08:11,387 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;@2bc2197, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 01:08:11,387 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-01-09 01:08:11,392 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 121 states have (on average 1.6115702479338843) internal successors, (195), 125 states have internal predecessors, (195), 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 01:08:11,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-01-09 01:08:11,397 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:08:11,398 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-01-09 01:08:11,398 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 01:08:11,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:08:11,403 INFO L85 PathProgramCache]: Analyzing trace with hash 925638, now seen corresponding path program 1 times [2025-01-09 01:08:11,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 01:08:11,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105171969] [2025-01-09 01:08:11,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:08:11,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 01:08:11,464 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 01:08:11,476 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 01:08:11,476 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:08:11,476 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 01:08:11,477 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 01:08:11,480 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 01:08:11,484 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 01:08:11,484 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:08:11,484 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 01:08:11,499 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 01:08:11,500 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 01:08:11,502 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (3 of 4 remaining) [2025-01-09 01:08:11,503 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (2 of 4 remaining) [2025-01-09 01:08:11,503 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (1 of 4 remaining) [2025-01-09 01:08:11,503 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2025-01-09 01:08:11,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 01:08:11,508 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-01-09 01:08:11,522 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 01:08:11,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 01:08:11 BoogieIcfgContainer [2025-01-09 01:08:11,526 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 01:08:11,527 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 01:08:11,527 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 01:08:11,527 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 01:08:11,528 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:08:11" (3/4) ... [2025-01-09 01:08:11,530 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 01:08:11,530 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 01:08:11,531 INFO L158 Benchmark]: Toolchain (without parser) took 1187.24ms. Allocated memory is still 142.6MB. Free memory was 112.6MB in the beginning and 46.7MB in the end (delta: 65.9MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2025-01-09 01:08:11,531 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:08:11,532 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.29ms. Allocated memory is still 142.6MB. Free memory was 112.1MB in the beginning and 98.8MB in the end (delta: 13.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 01:08:11,532 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.67ms. Allocated memory is still 142.6MB. Free memory was 98.8MB in the beginning and 96.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:08:11,532 INFO L158 Benchmark]: Boogie Preprocessor took 71.57ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 92.4MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:08:11,532 INFO L158 Benchmark]: RCFGBuilder took 633.25ms. Allocated memory is still 142.6MB. Free memory was 92.4MB in the beginning and 60.3MB in the end (delta: 32.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-01-09 01:08:11,532 INFO L158 Benchmark]: TraceAbstraction took 208.77ms. Allocated memory is still 142.6MB. Free memory was 59.9MB in the beginning and 47.1MB in the end (delta: 12.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 01:08:11,532 INFO L158 Benchmark]: Witness Printer took 3.89ms. Allocated memory is still 142.6MB. Free memory is still 46.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:08:11,537 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 201.3MB. Free memory is still 123.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 228.29ms. Allocated memory is still 142.6MB. Free memory was 112.1MB in the beginning and 98.8MB in the end (delta: 13.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.67ms. Allocated memory is still 142.6MB. Free memory was 98.8MB in the beginning and 96.1MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 71.57ms. Allocated memory is still 142.6MB. Free memory was 96.1MB in the beginning and 92.4MB in the end (delta: 3.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 633.25ms. Allocated memory is still 142.6MB. Free memory was 92.4MB in the beginning and 60.3MB in the end (delta: 32.1MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 208.77ms. Allocated memory is still 142.6MB. Free memory was 59.9MB in the beginning and 47.1MB in the end (delta: 12.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.89ms. Allocated memory is still 142.6MB. Free memory is still 46.7MB. 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: 31]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: overapproximation of someBinaryArithmeticDOUBLEoperation at line 157, overapproximation of union with floats in the HoenickeLindenmann_Original memory model at line 31. Possible FailurePath: [L22] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L157] double x = 1.0 / 0.0; [L158] CALL __ieee754_sqrt(x) [L25] double z; [L26] __int32_t sign = 0x80000000; [L27] __uint32_t r, t1, s1, ix1, q1; [L28] __int32_t ix0, s0, q, m, t, i; VAL [one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=53] [L31] ieee_double_shape_type ew_u; VAL [one_sqrt=1, sign=-2147483648, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=53] - UnprovableResult [Line: 126]: 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: 138]: 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: 162]: 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, 126 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=126occurred 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 01:08:11,554 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/double_req_bl_0730a.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 f30b944defc533c0c8d7b32fd32a0167e19c43437457905bc3a34530c4363136 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 01:08:13,658 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 01:08:13,759 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 01:08:13,768 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 01:08:13,768 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 01:08:13,797 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 01:08:13,800 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 01:08:13,800 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 01:08:13,801 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 01:08:13,801 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 01:08:13,802 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 01:08:13,802 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 01:08:13,803 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 01:08:13,803 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 01:08:13,803 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 01:08:13,803 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 01:08:13,803 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 01:08:13,803 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 01:08:13,803 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 01:08:13,804 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 01:08:13,804 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 01:08:13,804 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 01:08:13,804 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 01:08:13,804 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 01:08:13,804 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 01:08:13,804 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 01:08:13,804 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 01:08:13,804 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 01:08:13,804 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 01:08:13,804 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 01:08:13,804 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 01:08:13,805 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:08:13,805 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:08:13,805 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:08:13,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:08:13,805 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 01:08:13,805 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:08:13,805 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:08:13,806 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:08:13,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:08:13,806 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 01:08:13,806 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 01:08:13,806 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 01:08:13,806 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 01:08:13,806 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 01:08:13,807 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 01:08:13,807 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 01:08:13,807 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 01:08:13,807 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 01:08:13,807 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 01:08:13,807 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 -> f30b944defc533c0c8d7b32fd32a0167e19c43437457905bc3a34530c4363136 [2025-01-09 01:08:14,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 01:08:14,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 01:08:14,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 01:08:14,096 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 01:08:14,096 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 01:08:14,097 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0730a.c [2025-01-09 01:08:15,388 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f357b340d/47dc28b1a045404e87b9f35e3f064105/FLAGfcf00fcd3 [2025-01-09 01:08:15,599 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 01:08:15,601 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0730a.c [2025-01-09 01:08:15,610 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f357b340d/47dc28b1a045404e87b9f35e3f064105/FLAGfcf00fcd3 [2025-01-09 01:08:15,628 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/f357b340d/47dc28b1a045404e87b9f35e3f064105 [2025-01-09 01:08:15,634 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 01:08:15,635 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 01:08:15,636 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 01:08:15,636 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 01:08:15,640 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 01:08:15,641 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:08:15" (1/1) ... [2025-01-09 01:08:15,642 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c3b853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:15, skipping insertion in model container [2025-01-09 01:08:15,642 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:08:15" (1/1) ... [2025-01-09 01:08:15,660 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 01:08:15,831 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/double_req_bl_0730a.c[3437,3450] [2025-01-09 01:08:15,835 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:08:15,851 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 01:08:15,894 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/double_req_bl_0730a.c[3437,3450] [2025-01-09 01:08:15,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:08:15,916 INFO L204 MainTranslator]: Completed translation [2025-01-09 01:08:15,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:15 WrapperNode [2025-01-09 01:08:15,919 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 01:08:15,920 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 01:08:15,920 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 01:08:15,921 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 01:08:15,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:15" (1/1) ... [2025-01-09 01:08:15,936 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:15" (1/1) ... [2025-01-09 01:08:15,959 INFO L138 Inliner]: procedures = 21, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 169 [2025-01-09 01:08:15,963 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 01:08:15,964 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 01:08:15,964 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 01:08:15,964 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 01:08:15,971 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:15" (1/1) ... [2025-01-09 01:08:15,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:15" (1/1) ... [2025-01-09 01:08:15,974 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:15" (1/1) ... [2025-01-09 01:08:15,990 INFO L175 MemorySlicer]: Split 11 memory accesses to 4 slices as follows [2, 3, 3, 3]. 27 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 2]. [2025-01-09 01:08:15,990 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:15" (1/1) ... [2025-01-09 01:08:15,990 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:15" (1/1) ... [2025-01-09 01:08:16,006 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:15" (1/1) ... [2025-01-09 01:08:16,010 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:15" (1/1) ... [2025-01-09 01:08:16,014 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:15" (1/1) ... [2025-01-09 01:08:16,015 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:15" (1/1) ... [2025-01-09 01:08:16,017 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:15" (1/1) ... [2025-01-09 01:08:16,019 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 01:08:16,020 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 01:08:16,020 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 01:08:16,020 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 01:08:16,021 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:15" (1/1) ... [2025-01-09 01:08:16,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:08:16,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 01:08:16,058 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 01:08:16,061 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 01:08:16,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 01:08:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2025-01-09 01:08:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2025-01-09 01:08:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2025-01-09 01:08:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2025-01-09 01:08:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2025-01-09 01:08:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2025-01-09 01:08:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2025-01-09 01:08:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2025-01-09 01:08:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 01:08:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-09 01:08:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-01-09 01:08:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-01-09 01:08:16,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 01:08:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-01-09 01:08:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-01-09 01:08:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-01-09 01:08:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-01-09 01:08:16,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 01:08:16,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 01:08:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-01-09 01:08:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-01-09 01:08:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-01-09 01:08:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-01-09 01:08:16,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 01:08:16,181 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 01:08:16,182 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 01:08:22,776 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2025-01-09 01:08:22,777 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 01:08:22,784 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 01:08:22,785 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2025-01-09 01:08:22,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:08:22 BoogieIcfgContainer [2025-01-09 01:08:22,786 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 01:08:22,788 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 01:08:22,788 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 01:08:22,792 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 01:08:22,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 01:08:15" (1/3) ... [2025-01-09 01:08:22,793 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f8d299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:08:22, skipping insertion in model container [2025-01-09 01:08:22,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:08:15" (2/3) ... [2025-01-09 01:08:22,795 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f8d299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:08:22, skipping insertion in model container [2025-01-09 01:08:22,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:08:22" (3/3) ... [2025-01-09 01:08:22,796 INFO L128 eAbstractionObserver]: Analyzing ICFG double_req_bl_0730a.c [2025-01-09 01:08:22,807 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 01:08:22,809 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG double_req_bl_0730a.c that has 1 procedures, 48 locations, 1 initial locations, 7 loop locations, and 1 error locations. [2025-01-09 01:08:22,849 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 01:08:22,860 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;@3f16a23c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 01:08:22,860 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 01:08:22,865 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 46 states have (on average 1.608695652173913) internal successors, (74), 47 states have internal predecessors, (74), 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 01:08:22,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-01-09 01:08:22,869 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:08:22,869 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:08:22,870 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:08:22,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:08:22,875 INFO L85 PathProgramCache]: Analyzing trace with hash 963962902, now seen corresponding path program 1 times [2025-01-09 01:08:22,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:08:22,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1446337346] [2025-01-09 01:08:22,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:08:22,887 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 01:08:22,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:08:22,890 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 01:08:22,892 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 01:08:22,955 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-09 01:08:23,199 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-09 01:08:23,199 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:08:23,199 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:08:23,213 INFO L256 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 01:08:23,216 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:08:23,232 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 01:08:23,232 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:08:23,233 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:08:23,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1446337346] [2025-01-09 01:08:23,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1446337346] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:08:23,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:08:23,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 01:08:23,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138857062] [2025-01-09 01:08:23,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:08:23,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 01:08:23,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:08:23,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 01:08:23,255 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 01:08:23,257 INFO L87 Difference]: Start difference. First operand has 48 states, 46 states have (on average 1.608695652173913) internal successors, (74), 47 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:08:23,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:08:23,273 INFO L93 Difference]: Finished difference Result 94 states and 146 transitions. [2025-01-09 01:08:23,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 01:08:23,276 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-01-09 01:08:23,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:08:23,281 INFO L225 Difference]: With dead ends: 94 [2025-01-09 01:08:23,281 INFO L226 Difference]: Without dead ends: 45 [2025-01-09 01:08:23,284 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 01:08:23,286 INFO L435 NwaCegarLoop]: 67 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, 67 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 01:08:23,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 01:08:23,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2025-01-09 01:08:23,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2025-01-09 01:08:23,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.4545454545454546) internal successors, (64), 44 states have internal predecessors, (64), 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 01:08:23,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2025-01-09 01:08:23,329 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 10 [2025-01-09 01:08:23,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:08:23,329 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2025-01-09 01:08:23,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:08:23,330 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2025-01-09 01:08:23,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2025-01-09 01:08:23,330 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:08:23,330 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:08:23,342 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 01:08:23,531 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 01:08:23,531 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:08:23,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:08:23,532 INFO L85 PathProgramCache]: Analyzing trace with hash 204286683, now seen corresponding path program 1 times [2025-01-09 01:08:23,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:08:23,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [269005323] [2025-01-09 01:08:23,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:08:23,532 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 01:08:23,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:08:23,536 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 01:08:23,536 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 01:08:23,587 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-01-09 01:08:23,856 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-01-09 01:08:23,857 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:08:23,857 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:08:23,870 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-01-09 01:08:23,873 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:08:25,154 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 01:08:25,154 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:08:25,155 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:08:25,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [269005323] [2025-01-09 01:08:25,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [269005323] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:08:25,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:08:25,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 01:08:25,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422688037] [2025-01-09 01:08:25,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:08:25,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 01:08:25,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:08:25,156 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 01:08:25,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2025-01-09 01:08:25,156 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 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 01:08:28,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2025-01-09 01:08:31,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:08:31,246 INFO L93 Difference]: Finished difference Result 54 states and 72 transitions. [2025-01-09 01:08:31,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 01:08:31,247 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 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 01:08:31,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:08:31,248 INFO L225 Difference]: With dead ends: 54 [2025-01-09 01:08:31,248 INFO L226 Difference]: Without dead ends: 46 [2025-01-09 01:08:31,248 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2025-01-09 01:08:31,249 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 118 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2025-01-09 01:08:31,249 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 322 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2025-01-09 01:08:31,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2025-01-09 01:08:31,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 45. [2025-01-09 01:08:31,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 44 states have internal predecessors, (62), 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 01:08:31,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 62 transitions. [2025-01-09 01:08:31,254 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 62 transitions. Word has length 12 [2025-01-09 01:08:31,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:08:31,254 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 62 transitions. [2025-01-09 01:08:31,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 8 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 01:08:31,255 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 62 transitions. [2025-01-09 01:08:31,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-01-09 01:08:31,255 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:08:31,255 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:08:31,266 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 01:08:31,456 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 01:08:31,456 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:08:31,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:08:31,456 INFO L85 PathProgramCache]: Analyzing trace with hash 2124124823, now seen corresponding path program 1 times [2025-01-09 01:08:31,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:08:31,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1702298603] [2025-01-09 01:08:31,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:08:31,457 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 01:08:31,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:08:31,459 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 01:08:31,460 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 01:08:31,489 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-09 01:08:32,099 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-09 01:08:32,099 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:08:32,099 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:08:32,125 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-01-09 01:08:32,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:08:32,448 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 01:08:32,449 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:08:32,449 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:08:32,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1702298603] [2025-01-09 01:08:32,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1702298603] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:08:32,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:08:32,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 01:08:32,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542975683] [2025-01-09 01:08:32,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:08:32,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 01:08:32,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:08:32,449 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 01:08:32,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 01:08:32,450 INFO L87 Difference]: Start difference. First operand 45 states and 62 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:08:32,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:08:32,584 INFO L93 Difference]: Finished difference Result 45 states and 62 transitions. [2025-01-09 01:08:32,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 01:08:32,584 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2025-01-09 01:08:32,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:08:32,584 INFO L225 Difference]: With dead ends: 45 [2025-01-09 01:08:32,584 INFO L226 Difference]: Without dead ends: 0 [2025-01-09 01:08:32,585 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 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 01:08:32,586 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 2 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 01:08:32,586 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 5 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 01:08:32,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-01-09 01:08:32,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-01-09 01:08:32,587 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 01:08:32,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-01-09 01:08:32,587 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2025-01-09 01:08:32,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:08:32,587 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-09 01:08:32,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:08:32,587 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-01-09 01:08:32,587 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-01-09 01:08:32,589 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 01:08:32,606 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 (4)] Ended with exit code 0 [2025-01-09 01:08:32,790 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 01:08:32,792 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-01-09 01:08:32,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-01-09 01:08:33,053 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 01:08:33,061 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2025-01-09 01:08:33,061 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-01-09 01:08:33,061 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-01-09 01:08:33,062 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-01-09 01:08:33,062 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-01-09 01:08:33,062 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-01-09 01:08:33,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 01:08:33 BoogieIcfgContainer [2025-01-09 01:08:33,062 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 01:08:33,063 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 01:08:33,063 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 01:08:33,063 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 01:08:33,063 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:08:22" (3/4) ... [2025-01-09 01:08:33,064 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 01:08:33,070 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2025-01-09 01:08:33,070 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-01-09 01:08:33,071 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-09 01:08:33,071 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 01:08:33,133 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 01:08:33,133 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 01:08:33,133 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 01:08:33,134 INFO L158 Benchmark]: Toolchain (without parser) took 17498.85ms. Allocated memory is still 117.4MB. Free memory was 92.3MB in the beginning and 76.6MB in the end (delta: 15.7MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2025-01-09 01:08:33,134 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 83.9MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:08:33,134 INFO L158 Benchmark]: CACSL2BoogieTranslator took 282.98ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 78.3MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 01:08:33,134 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.39ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 76.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:08:33,135 INFO L158 Benchmark]: Boogie Preprocessor took 55.62ms. Allocated memory is still 117.4MB. Free memory was 76.6MB in the beginning and 73.8MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:08:33,135 INFO L158 Benchmark]: RCFGBuilder took 6766.02ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 53.7MB in the end (delta: 19.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-01-09 01:08:33,135 INFO L158 Benchmark]: TraceAbstraction took 10273.93ms. Allocated memory is still 117.4MB. Free memory was 53.2MB in the beginning and 83.4MB in the end (delta: -30.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:08:33,136 INFO L158 Benchmark]: Witness Printer took 70.85ms. Allocated memory is still 117.4MB. Free memory was 83.4MB in the beginning and 76.6MB in the end (delta: 6.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:08:33,136 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 83.9MB. Free memory is still 62.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 282.98ms. Allocated memory is still 117.4MB. Free memory was 92.1MB in the beginning and 78.3MB in the end (delta: 13.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.39ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 76.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 55.62ms. Allocated memory is still 117.4MB. Free memory was 76.6MB in the beginning and 73.8MB in the end (delta: 2.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 6766.02ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 53.7MB in the end (delta: 19.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 10273.93ms. Allocated memory is still 117.4MB. Free memory was 53.2MB in the beginning and 83.4MB in the end (delta: -30.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 70.85ms. Allocated memory is still 117.4MB. Free memory was 83.4MB in the beginning and 76.6MB in the end (delta: 6.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 162]: 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, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.0s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 120 SdHoareTripleChecker+Valid, 5.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 120 mSDsluCounter, 394 SdHoareTripleChecker+Invalid, 5.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 270 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 80 IncrementalHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 124 mSDtfsCounter, 80 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 34 ConstructedInterpolants, 7 QuantifiedInterpolants, 383 SizeOfPredicates, 7 NumberOfNonLiveVariables, 152 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: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2025-01-09 01:08:33,224 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