./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0730c.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0730c.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 9abd2050bf3fc760379c862e37663c5f55c1439a487d6741471f6573b4b4c89a --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 01:18:16,585 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 01:18:16,630 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 01:18:16,634 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 01:18:16,634 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 01:18:16,649 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 01:18:16,650 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 01:18:16,650 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 01:18:16,650 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 01:18:16,650 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 01:18:16,650 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 01:18:16,650 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 01:18:16,650 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 01:18:16,651 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 01:18:16,651 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 01:18:16,651 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 01:18:16,651 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 01:18:16,651 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 01:18:16,651 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 01:18:16,651 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 01:18:16,651 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 01:18:16,651 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 01:18:16,651 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 01:18:16,651 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 01:18:16,652 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 01:18:16,652 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 01:18:16,652 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 01:18:16,652 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 01:18:16,652 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 01:18:16,652 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:18:16,652 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:18:16,652 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:18:16,652 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:18:16,652 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 01:18:16,652 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:18:16,653 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:18:16,653 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:18:16,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:18:16,653 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 01:18:16,653 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 01:18:16,653 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 01:18:16,653 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 01:18:16,653 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 01:18:16,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 01:18:16,653 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 01:18:16,653 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 01:18:16,654 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 01:18:16,654 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 01:18:16,654 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 -> 9abd2050bf3fc760379c862e37663c5f55c1439a487d6741471f6573b4b4c89a [2025-01-09 01:18:16,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 01:18:16,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 01:18:16,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 01:18:16,900 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 01:18:16,900 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 01:18:16,901 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0730c.c [2025-01-09 01:18:18,124 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/af9ba9773/b7f414c7a2af47c5a05f8166eeaeac82/FLAG17cdeb223 [2025-01-09 01:18:18,398 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 01:18:18,399 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c [2025-01-09 01:18:18,407 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/af9ba9773/b7f414c7a2af47c5a05f8166eeaeac82/FLAG17cdeb223 [2025-01-09 01:18:18,705 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/af9ba9773/b7f414c7a2af47c5a05f8166eeaeac82 [2025-01-09 01:18:18,707 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 01:18:18,708 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 01:18:18,709 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 01:18:18,709 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 01:18:18,712 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 01:18:18,713 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:18:18" (1/1) ... [2025-01-09 01:18:18,713 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41ce7898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:18, skipping insertion in model container [2025-01-09 01:18:18,713 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:18:18" (1/1) ... [2025-01-09 01:18:18,723 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 01:18:18,854 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c[2071,2084] [2025-01-09 01:18:18,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:18:18,865 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 01:18:18,881 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c[2071,2084] [2025-01-09 01:18:18,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:18:18,890 INFO L204 MainTranslator]: Completed translation [2025-01-09 01:18:18,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:18 WrapperNode [2025-01-09 01:18:18,891 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 01:18:18,892 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 01:18:18,892 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 01:18:18,892 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 01:18:18,896 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:18" (1/1) ... [2025-01-09 01:18:18,901 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:18" (1/1) ... [2025-01-09 01:18:18,913 INFO L138 Inliner]: procedures = 17, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 149 [2025-01-09 01:18:18,914 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 01:18:18,914 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 01:18:18,914 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 01:18:18,914 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 01:18:18,920 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:18" (1/1) ... [2025-01-09 01:18:18,920 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:18" (1/1) ... [2025-01-09 01:18:18,922 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:18" (1/1) ... [2025-01-09 01:18:18,931 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2025-01-09 01:18:18,931 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:18" (1/1) ... [2025-01-09 01:18:18,931 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:18" (1/1) ... [2025-01-09 01:18:18,935 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:18" (1/1) ... [2025-01-09 01:18:18,936 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:18" (1/1) ... [2025-01-09 01:18:18,938 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:18" (1/1) ... [2025-01-09 01:18:18,940 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:18" (1/1) ... [2025-01-09 01:18:18,940 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:18" (1/1) ... [2025-01-09 01:18:18,942 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 01:18:18,943 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 01:18:18,943 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 01:18:18,943 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 01:18:18,943 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:18" (1/1) ... [2025-01-09 01:18:18,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:18:18,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 01:18:18,965 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 01:18:18,969 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 01:18:18,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 01:18:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 01:18:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 01:18:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 01:18:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 01:18:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 01:18:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-01-09 01:18:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-01-09 01:18:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-01-09 01:18:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-01-09 01:18:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-01-09 01:18:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-01-09 01:18:18,983 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-01-09 01:18:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-01-09 01:18:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-01-09 01:18:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-01-09 01:18:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2025-01-09 01:18:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2025-01-09 01:18:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 01:18:18,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 01:18:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-01-09 01:18:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-01-09 01:18:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-01-09 01:18:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-01-09 01:18:18,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 01:18:19,043 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 01:18:19,044 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 01:18:19,200 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2025-01-09 01:18:19,200 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 01:18:19,209 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 01:18:19,210 INFO L312 CfgBuilder]: Removed 7 assume(true) statements. [2025-01-09 01:18:19,211 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:18:19 BoogieIcfgContainer [2025-01-09 01:18:19,211 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 01:18:19,214 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 01:18:19,214 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 01:18:19,218 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 01:18:19,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 01:18:18" (1/3) ... [2025-01-09 01:18:19,219 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d070a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:18:19, skipping insertion in model container [2025-01-09 01:18:19,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:18" (2/3) ... [2025-01-09 01:18:19,220 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d070a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:18:19, skipping insertion in model container [2025-01-09 01:18:19,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:18:19" (3/3) ... [2025-01-09 01:18:19,221 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730c.c [2025-01-09 01:18:19,231 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 01:18:19,233 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_0730c.c that has 1 procedures, 50 locations, 1 initial locations, 8 loop locations, and 4 error locations. [2025-01-09 01:18:19,282 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 01:18:19,294 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;@42e9ca09, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 01:18:19,294 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2025-01-09 01:18:19,298 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 45 states have (on average 1.6888888888888889) internal successors, (76), 49 states have internal predecessors, (76), 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 01:18:19,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2025-01-09 01:18:19,303 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:18:19,304 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2025-01-09 01:18:19,304 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 01:18:19,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:18:19,307 INFO L85 PathProgramCache]: Analyzing trace with hash 925638, now seen corresponding path program 1 times [2025-01-09 01:18:19,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 01:18:19,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072875828] [2025-01-09 01:18:19,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:18:19,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 01:18:19,373 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 01:18:19,386 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 01:18:19,388 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:18:19,388 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 01:18:19,388 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 01:18:19,392 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 4 statements into 1 equivalence classes. [2025-01-09 01:18:19,396 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 4 of 4 statements. [2025-01-09 01:18:19,398 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:18:19,398 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 01:18:19,413 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 01:18:19,415 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 01:18:19,416 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONUNSUPPORTED_FEATURE (3 of 4 remaining) [2025-01-09 01:18:19,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (2 of 4 remaining) [2025-01-09 01:18:19,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (1 of 4 remaining) [2025-01-09 01:18:19,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2025-01-09 01:18:19,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 01:18:19,422 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-01-09 01:18:19,433 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 01:18:19,436 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 01:18:19 BoogieIcfgContainer [2025-01-09 01:18:19,437 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 01:18:19,437 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 01:18:19,437 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 01:18:19,438 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 01:18:19,438 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:18:19" (3/4) ... [2025-01-09 01:18:19,440 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-01-09 01:18:19,440 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 01:18:19,441 INFO L158 Benchmark]: Toolchain (without parser) took 733.39ms. Allocated memory is still 142.6MB. Free memory was 112.6MB in the beginning and 68.2MB in the end (delta: 44.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2025-01-09 01:18:19,441 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 125.3MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:18:19,441 INFO L158 Benchmark]: CACSL2BoogieTranslator took 182.67ms. Allocated memory is still 142.6MB. Free memory was 112.6MB in the beginning and 100.5MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:18:19,442 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.97ms. Allocated memory is still 142.6MB. Free memory was 100.5MB in the beginning and 98.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:18:19,442 INFO L158 Benchmark]: Boogie Preprocessor took 27.79ms. Allocated memory is still 142.6MB. Free memory was 98.7MB in the beginning and 96.8MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:18:19,442 INFO L158 Benchmark]: RCFGBuilder took 268.72ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 80.9MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 01:18:19,444 INFO L158 Benchmark]: TraceAbstraction took 223.03ms. Allocated memory is still 142.6MB. Free memory was 80.4MB in the beginning and 68.2MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:18:19,444 INFO L158 Benchmark]: Witness Printer took 3.30ms. Allocated memory is still 142.6MB. Free memory is still 68.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:18:19,445 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 201.3MB. Free memory is still 125.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 182.67ms. Allocated memory is still 142.6MB. Free memory was 112.6MB in the beginning and 100.5MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.97ms. Allocated memory is still 142.6MB. Free memory was 100.5MB in the beginning and 98.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.79ms. Allocated memory is still 142.6MB. Free memory was 98.7MB in the beginning and 96.8MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 268.72ms. Allocated memory is still 142.6MB. Free memory was 96.8MB in the beginning and 80.9MB in the end (delta: 15.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 223.03ms. Allocated memory is still 142.6MB. Free memory was 80.4MB in the beginning and 68.2MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 3.30ms. Allocated memory is still 142.6MB. Free memory is still 68.2MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 22]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: overapproximation of union with floats in the HoenickeLindenmann_Original memory model at line 22, overapproximation of someUnaryFLOAToperation at line 103. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L103] float x = -0.0f; [L104] CALL __ieee754_sqrtf(x) [L17] float z; [L18] __uint32_t r, hx; [L19] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=53] [L22] ieee_float_shape_type gf_u; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=53] - UnprovableResult [Line: 76]: 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: 87]: 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: 108]: 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, 50 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred 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 01:18:19,460 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0730c.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 9abd2050bf3fc760379c862e37663c5f55c1439a487d6741471f6573b4b4c89a --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 01:18:21,468 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 01:18:21,579 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-01-09 01:18:21,585 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 01:18:21,586 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 01:18:21,609 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 01:18:21,610 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 01:18:21,611 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 01:18:21,611 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 01:18:21,611 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 01:18:21,611 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 01:18:21,612 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 01:18:21,612 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 01:18:21,612 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 01:18:21,612 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 01:18:21,612 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 01:18:21,612 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 01:18:21,613 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 01:18:21,613 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 01:18:21,613 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 01:18:21,613 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 01:18:21,613 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 01:18:21,613 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 01:18:21,614 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-01-09 01:18:21,614 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-01-09 01:18:21,614 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-01-09 01:18:21,614 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 01:18:21,614 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 01:18:21,614 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 01:18:21,614 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 01:18:21,614 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 01:18:21,614 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:18:21,614 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:18:21,614 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:18:21,614 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:18:21,615 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 01:18:21,615 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 01:18:21,615 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 01:18:21,615 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 01:18:21,615 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:18:21,615 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 01:18:21,615 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 01:18:21,616 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 01:18:21,616 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 01:18:21,616 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-01-09 01:18:21,616 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-01-09 01:18:21,616 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 01:18:21,616 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 01:18:21,616 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 01:18:21,616 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 01:18:21,616 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 -> 9abd2050bf3fc760379c862e37663c5f55c1439a487d6741471f6573b4b4c89a [2025-01-09 01:18:21,881 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 01:18:21,887 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 01:18:21,888 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 01:18:21,889 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 01:18:21,889 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 01:18:21,890 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0730c.c [2025-01-09 01:18:23,130 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/16c2d3710/cd9a35bd6c7048a8a0688bd1c8514775/FLAG34c34a9ee [2025-01-09 01:18:23,336 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 01:18:23,337 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c [2025-01-09 01:18:23,346 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/16c2d3710/cd9a35bd6c7048a8a0688bd1c8514775/FLAG34c34a9ee [2025-01-09 01:18:23,364 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/16c2d3710/cd9a35bd6c7048a8a0688bd1c8514775 [2025-01-09 01:18:23,366 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 01:18:23,367 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 01:18:23,368 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 01:18:23,368 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 01:18:23,373 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 01:18:23,373 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:18:23" (1/1) ... [2025-01-09 01:18:23,374 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1834cafd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:23, skipping insertion in model container [2025-01-09 01:18:23,374 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 01:18:23" (1/1) ... [2025-01-09 01:18:23,389 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 01:18:23,549 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c[2071,2084] [2025-01-09 01:18:23,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:18:23,569 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 01:18:23,596 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c[2071,2084] [2025-01-09 01:18:23,596 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 01:18:23,615 INFO L204 MainTranslator]: Completed translation [2025-01-09 01:18:23,618 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:23 WrapperNode [2025-01-09 01:18:23,618 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 01:18:23,619 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 01:18:23,619 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 01:18:23,619 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 01:18:23,626 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:23" (1/1) ... [2025-01-09 01:18:23,635 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:23" (1/1) ... [2025-01-09 01:18:23,662 INFO L138 Inliner]: procedures = 20, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 124 [2025-01-09 01:18:23,663 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 01:18:23,663 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 01:18:23,663 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 01:18:23,663 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 01:18:23,671 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:23" (1/1) ... [2025-01-09 01:18:23,671 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:23" (1/1) ... [2025-01-09 01:18:23,677 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:23" (1/1) ... [2025-01-09 01:18:23,692 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2025-01-09 01:18:23,693 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:23" (1/1) ... [2025-01-09 01:18:23,693 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:23" (1/1) ... [2025-01-09 01:18:23,703 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:23" (1/1) ... [2025-01-09 01:18:23,704 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:23" (1/1) ... [2025-01-09 01:18:23,707 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:23" (1/1) ... [2025-01-09 01:18:23,708 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:23" (1/1) ... [2025-01-09 01:18:23,708 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:23" (1/1) ... [2025-01-09 01:18:23,710 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 01:18:23,711 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 01:18:23,711 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 01:18:23,711 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 01:18:23,712 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:23" (1/1) ... [2025-01-09 01:18:23,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 01:18:23,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 01:18:23,739 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 01:18:23,744 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 01:18:23,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 01:18:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-01-09 01:18:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-01-09 01:18:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-01-09 01:18:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-01-09 01:18:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 01:18:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2025-01-09 01:18:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2025-01-09 01:18:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2025-01-09 01:18:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2025-01-09 01:18:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-01-09 01:18:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-01-09 01:18:23,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-01-09 01:18:23,768 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-01-09 01:18:23,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 01:18:23,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 01:18:23,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2025-01-09 01:18:23,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2025-01-09 01:18:23,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2025-01-09 01:18:23,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2025-01-09 01:18:23,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-01-09 01:18:23,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-01-09 01:18:23,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-01-09 01:18:23,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-01-09 01:18:23,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 01:18:23,864 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 01:18:23,865 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 01:18:24,624 INFO L? ?]: Removed 28 outVars from TransFormulas that were not future-live. [2025-01-09 01:18:24,624 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 01:18:24,634 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 01:18:24,638 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2025-01-09 01:18:24,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:18:24 BoogieIcfgContainer [2025-01-09 01:18:24,639 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 01:18:24,640 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 01:18:24,645 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 01:18:24,649 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 01:18:24,652 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 01:18:23" (1/3) ... [2025-01-09 01:18:24,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f08ea3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:18:24, skipping insertion in model container [2025-01-09 01:18:24,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 01:18:23" (2/3) ... [2025-01-09 01:18:24,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f08ea3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 01:18:24, skipping insertion in model container [2025-01-09 01:18:24,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:18:24" (3/3) ... [2025-01-09 01:18:24,655 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730c.c [2025-01-09 01:18:24,676 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 01:18:24,677 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_0730c.c that has 1 procedures, 35 locations, 1 initial locations, 5 loop locations, and 1 error locations. [2025-01-09 01:18:24,706 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 01:18:24,718 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;@c3190e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 01:18:24,719 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 01:18:24,722 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 33 states have (on average 1.606060606060606) internal successors, (53), 34 states have internal predecessors, (53), 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 01:18:24,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2025-01-09 01:18:24,725 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:18:24,727 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:18:24,728 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:18:24,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:18:24,737 INFO L85 PathProgramCache]: Analyzing trace with hash -987028572, now seen corresponding path program 1 times [2025-01-09 01:18:24,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:18:24,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2064657881] [2025-01-09 01:18:24,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:18:24,746 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 01:18:24,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:18:24,749 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 01:18:24,750 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 01:18:24,794 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 9 statements into 1 equivalence classes. [2025-01-09 01:18:24,876 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 9 of 9 statements. [2025-01-09 01:18:24,877 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:18:24,877 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:18:24,882 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-01-09 01:18:24,885 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:18:24,897 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 01:18:24,897 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:18:24,898 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:18:24,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2064657881] [2025-01-09 01:18:24,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2064657881] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:18:24,898 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:18:24,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-01-09 01:18:24,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400141214] [2025-01-09 01:18:24,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:18:24,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 01:18:24,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:18:24,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 01:18:24,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 01:18:24,916 INFO L87 Difference]: Start difference. First operand has 35 states, 33 states have (on average 1.606060606060606) internal successors, (53), 34 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:18:24,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:18:24,926 INFO L93 Difference]: Finished difference Result 68 states and 104 transitions. [2025-01-09 01:18:24,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 01:18:24,928 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2025-01-09 01:18:24,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:18:24,932 INFO L225 Difference]: With dead ends: 68 [2025-01-09 01:18:24,932 INFO L226 Difference]: Without dead ends: 32 [2025-01-09 01:18:24,934 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 01:18:24,936 INFO L435 NwaCegarLoop]: 46 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, 46 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 01:18:24,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 01:18:24,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2025-01-09 01:18:24,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2025-01-09 01:18:24,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 31 states have internal predecessors, (43), 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 01:18:24,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions. [2025-01-09 01:18:24,957 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 43 transitions. Word has length 9 [2025-01-09 01:18:24,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:18:24,957 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 43 transitions. [2025-01-09 01:18:24,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:18:24,957 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2025-01-09 01:18:24,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-01-09 01:18:24,957 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:18:24,957 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:18:24,965 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2025-01-09 01:18:25,158 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 01:18:25,158 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:18:25,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:18:25,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1893645055, now seen corresponding path program 1 times [2025-01-09 01:18:25,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:18:25,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1938023534] [2025-01-09 01:18:25,159 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:18:25,160 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 01:18:25,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:18:25,163 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 01:18:25,164 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 01:18:25,198 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-01-09 01:18:25,282 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-01-09 01:18:25,283 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:18:25,283 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:18:25,287 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-01-09 01:18:25,289 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:18:25,418 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 01:18:25,418 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:18:25,418 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:18:25,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1938023534] [2025-01-09 01:18:25,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1938023534] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:18:25,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:18:25,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 01:18:25,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279679582] [2025-01-09 01:18:25,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:18:25,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 01:18:25,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:18:25,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 01:18:25,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 01:18:25,421 INFO L87 Difference]: Start difference. First operand 32 states and 43 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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 01:18:25,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:18:25,477 INFO L93 Difference]: Finished difference Result 41 states and 52 transitions. [2025-01-09 01:18:25,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 01:18:25,477 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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 01:18:25,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:18:25,478 INFO L225 Difference]: With dead ends: 41 [2025-01-09 01:18:25,478 INFO L226 Difference]: Without dead ends: 16 [2025-01-09 01:18:25,478 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2025-01-09 01:18:25,478 INFO L435 NwaCegarLoop]: 12 mSDtfsCounter, 8 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 01:18:25,479 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 40 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 01:18:25,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2025-01-09 01:18:25,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2025-01-09 01:18:25,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 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 01:18:25,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2025-01-09 01:18:25,481 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 10 [2025-01-09 01:18:25,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:18:25,481 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2025-01-09 01:18:25,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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 01:18:25,481 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2025-01-09 01:18:25,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-01-09 01:18:25,481 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:18:25,481 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:18:25,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2025-01-09 01:18:25,682 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 01:18:25,682 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:18:25,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:18:25,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1413910305, now seen corresponding path program 1 times [2025-01-09 01:18:25,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:18:25,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [98908055] [2025-01-09 01:18:25,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:18:25,684 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 01:18:25,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:18:25,689 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 01:18:25,690 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 01:18:25,721 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-01-09 01:18:25,757 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-01-09 01:18:25,758 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:18:25,758 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:18:25,760 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-01-09 01:18:25,761 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:18:25,806 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 01:18:25,806 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:18:25,806 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:18:25,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [98908055] [2025-01-09 01:18:25,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [98908055] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:18:25,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:18:25,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 01:18:25,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219229943] [2025-01-09 01:18:25,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:18:25,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 01:18:25,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:18:25,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 01:18:25,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 01:18:25,807 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:18:25,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:18:25,842 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2025-01-09 01:18:25,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 01:18:25,842 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2025-01-09 01:18:25,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:18:25,842 INFO L225 Difference]: With dead ends: 19 [2025-01-09 01:18:25,842 INFO L226 Difference]: Without dead ends: 16 [2025-01-09 01:18:25,842 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 01:18:25,843 INFO L435 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 01:18:25,843 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 01:18:25,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2025-01-09 01:18:25,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2025-01-09 01:18:25,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0) internal successors, (15), 15 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:18:25,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2025-01-09 01:18:25,845 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2025-01-09 01:18:25,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:18:25,845 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2025-01-09 01:18:25,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-01-09 01:18:25,845 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2025-01-09 01:18:25,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-01-09 01:18:25,845 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 01:18:25,845 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 01:18:25,849 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 01:18:26,049 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 01:18:26,049 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 01:18:26,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 01:18:26,050 INFO L85 PathProgramCache]: Analyzing trace with hash -893260458, now seen corresponding path program 1 times [2025-01-09 01:18:26,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-01-09 01:18:26,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1820631391] [2025-01-09 01:18:26,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 01:18:26,050 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 01:18:26,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2025-01-09 01:18:26,053 INFO L229 MonitoredProcess]: Starting monitored process 5 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 01:18:26,054 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 (5)] Waiting until timeout for monitored process [2025-01-09 01:18:26,089 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-01-09 01:18:26,127 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-01-09 01:18:26,127 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 01:18:26,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 01:18:26,132 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-01-09 01:18:26,134 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 01:18:26,198 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2025-01-09 01:18:26,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2025-01-09 01:18:26,271 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 01:18:26,271 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 01:18:26,271 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-01-09 01:18:26,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1820631391] [2025-01-09 01:18:26,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1820631391] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 01:18:26,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 01:18:26,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-01-09 01:18:26,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956026266] [2025-01-09 01:18:26,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 01:18:26,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 01:18:26,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-01-09 01:18:26,272 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 01:18:26,272 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-01-09 01:18:26,272 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 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 01:18:26,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 01:18:26,389 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2025-01-09 01:18:26,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-01-09 01:18:26,390 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 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 01:18:26,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 01:18:26,390 INFO L225 Difference]: With dead ends: 16 [2025-01-09 01:18:26,390 INFO L226 Difference]: Without dead ends: 0 [2025-01-09 01:18:26,391 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2025-01-09 01:18:26,391 INFO L435 NwaCegarLoop]: 6 mSDtfsCounter, 3 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 01:18:26,392 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 39 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 01:18:26,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-01-09 01:18:26,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-01-09 01:18:26,393 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 01:18:26,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-01-09 01:18:26,393 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2025-01-09 01:18:26,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 01:18:26,393 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-09 01:18:26,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 9 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 01:18:26,393 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-01-09 01:18:26,393 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-01-09 01:18:26,395 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 01:18:26,400 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 (5)] Ended with exit code 0 [2025-01-09 01:18:26,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /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 01:18:26,599 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-01-09 01:18:26,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-01-09 01:18:26,620 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 01:18:26,631 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2025-01-09 01:18:26,632 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2025-01-09 01:18:26,632 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 01:18:26 BoogieIcfgContainer [2025-01-09 01:18:26,632 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 01:18:26,633 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 01:18:26,636 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 01:18:26,636 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 01:18:26,636 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 01:18:24" (3/4) ... [2025-01-09 01:18:26,638 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 01:18:26,646 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2025-01-09 01:18:26,646 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2025-01-09 01:18:26,646 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-01-09 01:18:26,646 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 01:18:26,710 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 01:18:26,711 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 01:18:26,711 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 01:18:26,711 INFO L158 Benchmark]: Toolchain (without parser) took 3344.29ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 50.2MB in the end (delta: 42.5MB). Peak memory consumption was 38.3MB. Max. memory is 16.1GB. [2025-01-09 01:18:26,711 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 83.9MB. Free memory is still 62.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:18:26,712 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.36ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 79.6MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:18:26,712 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.92ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 78.1MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:18:26,712 INFO L158 Benchmark]: Boogie Preprocessor took 47.10ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 75.8MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:18:26,713 INFO L158 Benchmark]: RCFGBuilder took 927.81ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 60.2MB in the end (delta: 15.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 01:18:26,713 INFO L158 Benchmark]: TraceAbstraction took 1991.88ms. Allocated memory is still 117.4MB. Free memory was 59.5MB in the beginning and 56.0MB in the end (delta: 3.5MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2025-01-09 01:18:26,713 INFO L158 Benchmark]: Witness Printer took 77.49ms. Allocated memory is still 117.4MB. Free memory was 56.0MB in the beginning and 50.2MB in the end (delta: 5.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 01:18:26,714 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 83.9MB. Free memory is still 62.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 250.36ms. Allocated memory is still 117.4MB. Free memory was 92.4MB in the beginning and 79.6MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.92ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 78.1MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.10ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 75.8MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 927.81ms. Allocated memory is still 117.4MB. Free memory was 75.8MB in the beginning and 60.2MB in the end (delta: 15.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1991.88ms. Allocated memory is still 117.4MB. Free memory was 59.5MB in the beginning and 56.0MB in the end (delta: 3.5MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * Witness Printer took 77.49ms. Allocated memory is still 117.4MB. Free memory was 56.0MB in the beginning and 50.2MB in the end (delta: 5.9MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 * 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: 108]: 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, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 161 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 86 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 78 IncrementalHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 75 mSDtfsCounter, 78 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred in iteration=0, InterpolantAutomatonStates: 22, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 41 ConstructedInterpolants, 1 QuantifiedInterpolants, 140 SizeOfPredicates, 6 NumberOfNonLiveVariables, 164 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2025-01-09 01:18:26,738 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