./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a675a014adb554d3b3cb02e2742644f85bc00ae7c696ead14730bf8198b2dce7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-16 16:22:10,097 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 16:22:10,163 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-16 16:22:10,166 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 16:22:10,166 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 16:22:10,189 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 16:22:10,189 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 16:22:10,190 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 16:22:10,190 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 16:22:10,190 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 16:22:10,191 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 16:22:10,191 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 16:22:10,191 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 16:22:10,191 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 16:22:10,192 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 16:22:10,192 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 16:22:10,192 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 16:22:10,192 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-16 16:22:10,192 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-16 16:22:10,192 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-16 16:22:10,192 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 16:22:10,192 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 16:22:10,192 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 16:22:10,193 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 16:22:10,193 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-16 16:22:10,193 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 16:22:10,193 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 16:22:10,193 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 16:22:10,193 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 16:22:10,193 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 16:22:10,193 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 16:22:10,193 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 16:22:10,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 16:22:10,194 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 16:22:10,194 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 16:22:10,194 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 16:22:10,194 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 16:22:10,194 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-16 16:22:10,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-16 16:22:10,194 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 16:22:10,194 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 16:22:10,194 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 16:22:10,195 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 16:22:10,195 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a675a014adb554d3b3cb02e2742644f85bc00ae7c696ead14730bf8198b2dce7 [2025-03-16 16:22:10,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 16:22:10,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 16:22:10,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 16:22:10,398 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 16:22:10,398 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 16:22:10,399 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2025-03-16 16:22:11,562 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6b00f205/2e37cbc9a732424dbf77cd3faafd5456/FLAG5b0920f81 [2025-03-16 16:22:11,817 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 16:22:11,817 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2025-03-16 16:22:11,835 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6b00f205/2e37cbc9a732424dbf77cd3faafd5456/FLAG5b0920f81 [2025-03-16 16:22:12,134 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6b00f205/2e37cbc9a732424dbf77cd3faafd5456 [2025-03-16 16:22:12,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 16:22:12,137 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 16:22:12,138 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 16:22:12,138 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 16:22:12,140 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 16:22:12,141 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 04:22:12" (1/1) ... [2025-03-16 16:22:12,142 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22e85379 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:12, skipping insertion in model container [2025-03-16 16:22:12,142 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 04:22:12" (1/1) ... [2025-03-16 16:22:12,154 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 16:22:12,296 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1121a.c[2701,2714] [2025-03-16 16:22:12,298 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 16:22:12,305 INFO L200 MainTranslator]: Completed pre-run [2025-03-16 16:22:12,333 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1121a.c[2701,2714] [2025-03-16 16:22:12,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 16:22:12,349 INFO L204 MainTranslator]: Completed translation [2025-03-16 16:22:12,350 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:12 WrapperNode [2025-03-16 16:22:12,350 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-16 16:22:12,351 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-16 16:22:12,351 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-16 16:22:12,352 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-16 16:22:12,356 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:12" (1/1) ... [2025-03-16 16:22:12,367 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:12" (1/1) ... [2025-03-16 16:22:12,394 INFO L138 Inliner]: procedures = 18, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 233 [2025-03-16 16:22:12,394 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-16 16:22:12,394 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-16 16:22:12,396 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-16 16:22:12,396 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-16 16:22:12,401 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:12" (1/1) ... [2025-03-16 16:22:12,402 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:12" (1/1) ... [2025-03-16 16:22:12,403 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:12" (1/1) ... [2025-03-16 16:22:12,418 INFO L175 MemorySlicer]: Split 15 memory accesses to 6 slices as follows [2, 5, 2, 2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 0, 1, 1, 1, 1]. [2025-03-16 16:22:12,418 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:12" (1/1) ... [2025-03-16 16:22:12,418 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:12" (1/1) ... [2025-03-16 16:22:12,426 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:12" (1/1) ... [2025-03-16 16:22:12,427 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:12" (1/1) ... [2025-03-16 16:22:12,428 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:12" (1/1) ... [2025-03-16 16:22:12,429 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:12" (1/1) ... [2025-03-16 16:22:12,431 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-16 16:22:12,431 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-16 16:22:12,431 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-16 16:22:12,431 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-16 16:22:12,432 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:12" (1/1) ... [2025-03-16 16:22:12,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 16:22:12,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 16:22:12,456 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-16 16:22:12,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-16 16:22:12,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-16 16:22:12,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-16 16:22:12,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-16 16:22:12,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-16 16:22:12,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-16 16:22:12,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-16 16:22:12,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-16 16:22:12,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-16 16:22:12,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-16 16:22:12,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-16 16:22:12,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-16 16:22:12,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-16 16:22:12,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-16 16:22:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-16 16:22:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2025-03-16 16:22:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2025-03-16 16:22:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2025-03-16 16:22:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2025-03-16 16:22:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2025-03-16 16:22:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2025-03-16 16:22:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2025-03-16 16:22:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2025-03-16 16:22:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2025-03-16 16:22:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2025-03-16 16:22:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2025-03-16 16:22:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2025-03-16 16:22:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-16 16:22:12,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-16 16:22:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-16 16:22:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-16 16:22:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-16 16:22:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-16 16:22:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-16 16:22:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-16 16:22:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2025-03-16 16:22:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2025-03-16 16:22:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2025-03-16 16:22:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2025-03-16 16:22:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2025-03-16 16:22:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2025-03-16 16:22:12,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-16 16:22:12,567 INFO L256 CfgBuilder]: Building ICFG [2025-03-16 16:22:12,569 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-16 16:22:12,857 INFO L? ?]: Removed 61 outVars from TransFormulas that were not future-live. [2025-03-16 16:22:12,857 INFO L307 CfgBuilder]: Performing block encoding [2025-03-16 16:22:12,877 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-16 16:22:12,878 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-16 16:22:12,878 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 04:22:12 BoogieIcfgContainer [2025-03-16 16:22:12,878 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-16 16:22:12,880 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-16 16:22:12,881 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-16 16:22:12,884 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-16 16:22:12,884 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 04:22:12" (1/3) ... [2025-03-16 16:22:12,885 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4fc781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 04:22:12, skipping insertion in model container [2025-03-16 16:22:12,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:12" (2/3) ... [2025-03-16 16:22:12,885 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c4fc781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 04:22:12, skipping insertion in model container [2025-03-16 16:22:12,885 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 04:22:12" (3/3) ... [2025-03-16 16:22:12,886 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121a.c [2025-03-16 16:22:12,897 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-16 16:22:12,898 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_1121a.c that has 1 procedures, 76 locations, 1 initial locations, 8 loop locations, and 5 error locations. [2025-03-16 16:22:12,941 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-16 16:22:12,951 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;@6f1e87b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-16 16:22:12,952 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-03-16 16:22:12,956 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 70 states have (on average 1.7285714285714286) internal successors, (121), 75 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:22:12,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2025-03-16 16:22:12,959 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 16:22:12,959 INFO L218 NwaCegarLoop]: trace histogram [1, 1] [2025-03-16 16:22:12,960 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONUNSUPPORTED_FEATURE === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE, ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (and 2 more)] === [2025-03-16 16:22:12,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 16:22:12,964 INFO L85 PathProgramCache]: Analyzing trace with hash 5503, now seen corresponding path program 1 times [2025-03-16 16:22:12,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 16:22:12,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912710111] [2025-03-16 16:22:12,972 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 16:22:12,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 16:22:13,023 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-16 16:22:13,033 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-16 16:22:13,034 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 16:22:13,034 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-16 16:22:13,034 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-16 16:22:13,038 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-03-16 16:22:13,043 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-03-16 16:22:13,045 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 16:22:13,045 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-16 16:22:13,060 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-16 16:22:13,061 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-16 16:22:13,062 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONUNSUPPORTED_FEATURE (4 of 5 remaining) [2025-03-16 16:22:13,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2025-03-16 16:22:13,065 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONUNSUPPORTED_FEATURE (2 of 5 remaining) [2025-03-16 16:22:13,065 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONUNSUPPORTED_FEATURE (1 of 5 remaining) [2025-03-16 16:22:13,065 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONUNSUPPORTED_FEATURE (0 of 5 remaining) [2025-03-16 16:22:13,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-16 16:22:13,068 INFO L422 BasicCegarLoop]: Path program histogram: [1] [2025-03-16 16:22:13,082 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-16 16:22:13,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 04:22:13 BoogieIcfgContainer [2025-03-16 16:22:13,084 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-16 16:22:13,085 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-16 16:22:13,085 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-16 16:22:13,085 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-16 16:22:13,085 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 04:22:12" (3/4) ... [2025-03-16 16:22:13,087 INFO L149 WitnessPrinter]: No result that supports witness generation found [2025-03-16 16:22:13,088 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-16 16:22:13,089 INFO L158 Benchmark]: Toolchain (without parser) took 952.24ms. Allocated memory is still 167.8MB. Free memory was 124.6MB in the beginning and 68.2MB in the end (delta: 56.4MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2025-03-16 16:22:13,089 INFO L158 Benchmark]: CDTParser took 0.54ms. Allocated memory is still 201.3MB. Free memory is still 115.6MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:22:13,089 INFO L158 Benchmark]: CACSL2BoogieTranslator took 213.17ms. Allocated memory is still 167.8MB. Free memory was 124.6MB in the beginning and 111.4MB in the end (delta: 13.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-16 16:22:13,090 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.60ms. Allocated memory is still 167.8MB. Free memory was 111.4MB in the beginning and 109.1MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-16 16:22:13,090 INFO L158 Benchmark]: Boogie Preprocessor took 36.29ms. Allocated memory is still 167.8MB. Free memory was 109.1MB in the beginning and 107.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:22:13,090 INFO L158 Benchmark]: IcfgBuilder took 447.06ms. Allocated memory is still 167.8MB. Free memory was 107.1MB in the beginning and 81.9MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-03-16 16:22:13,091 INFO L158 Benchmark]: TraceAbstraction took 203.53ms. Allocated memory is still 167.8MB. Free memory was 81.9MB in the beginning and 69.2MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-16 16:22:13,091 INFO L158 Benchmark]: Witness Printer took 3.54ms. Allocated memory is still 167.8MB. Free memory is still 68.2MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:22:13,092 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54ms. Allocated memory is still 201.3MB. Free memory is still 115.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 213.17ms. Allocated memory is still 167.8MB. Free memory was 124.6MB in the beginning and 111.4MB in the end (delta: 13.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.60ms. Allocated memory is still 167.8MB. Free memory was 111.4MB in the beginning and 109.1MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.29ms. Allocated memory is still 167.8MB. Free memory was 109.1MB in the beginning and 107.1MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 447.06ms. Allocated memory is still 167.8MB. Free memory was 107.1MB in the beginning and 81.9MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 203.53ms. Allocated memory is still 167.8MB. Free memory was 81.9MB in the beginning and 69.2MB in the end (delta: 12.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Witness Printer took 3.54ms. Allocated memory is still 167.8MB. 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: 23]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: overapproximation of union with floats in the HoenickeLindenmann_Original memory model at line 23, overapproximation of someUnaryDOUBLEoperation at line 16. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L118] float x = __VERIFIER_nondet_float(); [L119] float y = 0.0f; [L121] CALL fmod_float(x, y) [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [Zero_fmod={4:0}, one_fmod=1, x=2] [L23] ieee_float_shape_type gf_u; VAL [Zero_fmod={4:0}, one_fmod=1, x=2] - UnprovableResult [Line: 125]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 100]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - UnprovableResult [Line: 28]: Unable to prove that there are no unsupported features in the program Unable to prove that there are no unsupported features in the program Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 76 locations, 121 edges, 5 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred 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, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2025-03-16 16:22:13,107 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a675a014adb554d3b3cb02e2742644f85bc00ae7c696ead14730bf8198b2dce7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-16 16:22:14,950 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 16:22:15,022 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2025-03-16 16:22:15,029 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 16:22:15,030 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 16:22:15,053 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 16:22:15,054 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 16:22:15,054 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 16:22:15,054 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 16:22:15,054 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 16:22:15,054 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 16:22:15,055 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 16:22:15,055 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 16:22:15,055 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 16:22:15,055 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 16:22:15,055 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 16:22:15,055 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 16:22:15,055 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-16 16:22:15,055 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-16 16:22:15,055 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 16:22:15,056 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 16:22:15,056 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 16:22:15,056 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 16:22:15,056 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-16 16:22:15,056 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-03-16 16:22:15,056 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-03-16 16:22:15,056 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-16 16:22:15,056 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 16:22:15,056 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 16:22:15,056 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 16:22:15,056 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 16:22:15,056 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 16:22:15,057 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 16:22:15,057 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 16:22:15,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 16:22:15,057 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 16:22:15,057 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 16:22:15,057 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 16:22:15,057 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 16:22:15,057 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-03-16 16:22:15,057 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-03-16 16:22:15,057 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 16:22:15,057 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 16:22:15,057 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 16:22:15,057 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 16:22:15,057 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a675a014adb554d3b3cb02e2742644f85bc00ae7c696ead14730bf8198b2dce7 [2025-03-16 16:22:15,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 16:22:15,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 16:22:15,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 16:22:15,305 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 16:22:15,305 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 16:22:15,308 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2025-03-16 16:22:16,504 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bf318898/fd4781d453a947319b1de58e37392145/FLAGda5d7418b [2025-03-16 16:22:16,685 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 16:22:16,686 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1121a.c [2025-03-16 16:22:16,692 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bf318898/fd4781d453a947319b1de58e37392145/FLAGda5d7418b [2025-03-16 16:22:16,704 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bf318898/fd4781d453a947319b1de58e37392145 [2025-03-16 16:22:16,705 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 16:22:16,706 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 16:22:16,707 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 16:22:16,707 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 16:22:16,710 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 16:22:16,711 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 04:22:16" (1/1) ... [2025-03-16 16:22:16,711 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3226c803 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:16, skipping insertion in model container [2025-03-16 16:22:16,711 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 04:22:16" (1/1) ... [2025-03-16 16:22:16,723 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 16:22:16,869 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1121a.c[2701,2714] [2025-03-16 16:22:16,872 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 16:22:16,886 INFO L200 MainTranslator]: Completed pre-run [2025-03-16 16:22:16,914 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1121a.c[2701,2714] [2025-03-16 16:22:16,915 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 16:22:16,930 INFO L204 MainTranslator]: Completed translation [2025-03-16 16:22:16,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:16 WrapperNode [2025-03-16 16:22:16,931 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-16 16:22:16,932 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-16 16:22:16,932 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-16 16:22:16,932 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-16 16:22:16,936 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:16" (1/1) ... [2025-03-16 16:22:16,945 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:16" (1/1) ... [2025-03-16 16:22:16,959 INFO L138 Inliner]: procedures = 21, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 159 [2025-03-16 16:22:16,959 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-16 16:22:16,962 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-16 16:22:16,962 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-16 16:22:16,962 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-16 16:22:16,968 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:16" (1/1) ... [2025-03-16 16:22:16,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:16" (1/1) ... [2025-03-16 16:22:16,970 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:16" (1/1) ... [2025-03-16 16:22:16,985 INFO L175 MemorySlicer]: Split 15 memory accesses to 6 slices as follows [2, 2, 2, 5, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 0, 0, 2, 0, 0]. The 4 writes are split as follows [0, 1, 1, 0, 1, 1]. [2025-03-16 16:22:16,986 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:16" (1/1) ... [2025-03-16 16:22:16,986 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:16" (1/1) ... [2025-03-16 16:22:16,994 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:16" (1/1) ... [2025-03-16 16:22:16,995 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:16" (1/1) ... [2025-03-16 16:22:16,996 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:16" (1/1) ... [2025-03-16 16:22:16,997 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:16" (1/1) ... [2025-03-16 16:22:17,015 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-16 16:22:17,017 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-16 16:22:17,017 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-16 16:22:17,017 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-16 16:22:17,018 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:16" (1/1) ... [2025-03-16 16:22:17,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 16:22:17,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 16:22:17,047 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-16 16:22:17,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-16 16:22:17,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-16 16:22:17,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2025-03-16 16:22:17,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2025-03-16 16:22:17,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2025-03-16 16:22:17,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2025-03-16 16:22:17,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2025-03-16 16:22:17,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2025-03-16 16:22:17,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2025-03-16 16:22:17,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2025-03-16 16:22:17,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2025-03-16 16:22:17,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2025-03-16 16:22:17,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2025-03-16 16:22:17,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2025-03-16 16:22:17,067 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-16 16:22:17,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2025-03-16 16:22:17,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2025-03-16 16:22:17,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2025-03-16 16:22:17,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2025-03-16 16:22:17,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2025-03-16 16:22:17,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2025-03-16 16:22:17,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-03-16 16:22:17,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2025-03-16 16:22:17,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2025-03-16 16:22:17,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2025-03-16 16:22:17,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2025-03-16 16:22:17,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2025-03-16 16:22:17,068 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-16 16:22:17,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-16 16:22:17,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2025-03-16 16:22:17,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2025-03-16 16:22:17,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2025-03-16 16:22:17,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2025-03-16 16:22:17,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2025-03-16 16:22:17,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2025-03-16 16:22:17,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-03-16 16:22:17,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2025-03-16 16:22:17,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2025-03-16 16:22:17,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2025-03-16 16:22:17,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2025-03-16 16:22:17,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2025-03-16 16:22:17,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-16 16:22:17,171 INFO L256 CfgBuilder]: Building ICFG [2025-03-16 16:22:17,172 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-16 16:22:20,045 INFO L? ?]: Removed 37 outVars from TransFormulas that were not future-live. [2025-03-16 16:22:20,045 INFO L307 CfgBuilder]: Performing block encoding [2025-03-16 16:22:20,054 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-16 16:22:20,055 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-16 16:22:20,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 04:22:20 BoogieIcfgContainer [2025-03-16 16:22:20,055 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-16 16:22:20,058 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-16 16:22:20,058 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-16 16:22:20,061 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-16 16:22:20,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 04:22:16" (1/3) ... [2025-03-16 16:22:20,062 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15781a3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 04:22:20, skipping insertion in model container [2025-03-16 16:22:20,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 04:22:16" (2/3) ... [2025-03-16 16:22:20,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15781a3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 04:22:20, skipping insertion in model container [2025-03-16 16:22:20,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 04:22:20" (3/3) ... [2025-03-16 16:22:20,064 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_1121a.c [2025-03-16 16:22:20,074 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-16 16:22:20,075 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_1121a.c that has 1 procedures, 38 locations, 1 initial locations, 8 loop locations, and 1 error locations. [2025-03-16 16:22:20,106 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-16 16:22:20,113 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;@31a7b6c7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-16 16:22:20,113 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-16 16:22:20,116 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 36 states have (on average 1.75) internal successors, (63), 37 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:22:20,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2025-03-16 16:22:20,119 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 16:22:20,119 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 16:22:20,119 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 16:22:20,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 16:22:20,122 INFO L85 PathProgramCache]: Analyzing trace with hash -922994140, now seen corresponding path program 1 times [2025-03-16 16:22:20,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-16 16:22:20,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [774576486] [2025-03-16 16:22:20,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 16:22:20,129 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-16 16:22:20,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-16 16:22:20,131 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-16 16:22:20,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2025-03-16 16:22:20,189 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-16 16:22:20,340 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-16 16:22:20,341 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 16:22:20,341 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 16:22:20,346 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjuncts are in the unsatisfiable core [2025-03-16 16:22:20,349 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 16:22:20,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 16:22:20,366 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 16:22:20,366 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-16 16:22:20,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [774576486] [2025-03-16 16:22:20,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [774576486] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 16:22:20,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 16:22:20,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-16 16:22:20,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892097098] [2025-03-16 16:22:20,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 16:22:20,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-16 16:22:20,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-16 16:22:20,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-16 16:22:20,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 16:22:20,386 INFO L87 Difference]: Start difference. First operand has 38 states, 36 states have (on average 1.75) internal successors, (63), 37 states have internal predecessors, (63), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:22:20,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 16:22:20,400 INFO L93 Difference]: Finished difference Result 75 states and 125 transitions. [2025-03-16 16:22:20,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-16 16:22:20,401 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2025-03-16 16:22:20,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 16:22:20,406 INFO L225 Difference]: With dead ends: 75 [2025-03-16 16:22:20,407 INFO L226 Difference]: Without dead ends: 35 [2025-03-16 16:22:20,408 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-16 16:22:20,410 INFO L435 NwaCegarLoop]: 53 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, 53 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 16:22:20,410 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 16:22:20,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2025-03-16 16:22:20,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2025-03-16 16:22:20,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 34 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:22:20,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 50 transitions. [2025-03-16 16:22:20,433 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 50 transitions. Word has length 8 [2025-03-16 16:22:20,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 16:22:20,433 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 50 transitions. [2025-03-16 16:22:20,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:22:20,434 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 50 transitions. [2025-03-16 16:22:20,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-03-16 16:22:20,434 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 16:22:20,434 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 16:22:20,443 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2025-03-16 16:22:20,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-16 16:22:20,635 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 16:22:20,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 16:22:20,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1595402530, now seen corresponding path program 1 times [2025-03-16 16:22:20,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-16 16:22:20,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1968634936] [2025-03-16 16:22:20,637 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 16:22:20,637 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-16 16:22:20,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-16 16:22:20,645 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-16 16:22:20,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2025-03-16 16:22:20,718 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-16 16:22:20,887 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-16 16:22:20,888 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 16:22:20,888 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 16:22:20,894 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-16 16:22:20,896 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 16:22:22,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 16:22:22,148 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 16:22:22,148 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-16 16:22:22,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1968634936] [2025-03-16 16:22:22,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1968634936] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 16:22:22,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 16:22:22,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 16:22:22,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023478639] [2025-03-16 16:22:22,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 16:22:22,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 16:22:22,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-16 16:22:22,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 16:22:22,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-16 16:22:22,150 INFO L87 Difference]: Start difference. First operand 35 states and 50 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:22:24,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 16:22:24,753 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2025-03-16 16:22:24,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 16:22:24,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2025-03-16 16:22:24,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 16:22:24,760 INFO L225 Difference]: With dead ends: 39 [2025-03-16 16:22:24,760 INFO L226 Difference]: Without dead ends: 35 [2025-03-16 16:22:24,760 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-16 16:22:24,761 INFO L435 NwaCegarLoop]: 47 mSDtfsCounter, 40 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2025-03-16 16:22:24,761 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 133 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2025-03-16 16:22:24,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2025-03-16 16:22:24,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2025-03-16 16:22:24,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 34 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:22:24,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 49 transitions. [2025-03-16 16:22:24,766 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 49 transitions. Word has length 10 [2025-03-16 16:22:24,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 16:22:24,766 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 49 transitions. [2025-03-16 16:22:24,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:22:24,766 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 49 transitions. [2025-03-16 16:22:24,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2025-03-16 16:22:24,766 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 16:22:24,766 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 16:22:24,774 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2025-03-16 16:22:24,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-16 16:22:24,967 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 16:22:24,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 16:22:24,968 INFO L85 PathProgramCache]: Analyzing trace with hash -2079653550, now seen corresponding path program 1 times [2025-03-16 16:22:24,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-03-16 16:22:24,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [27642367] [2025-03-16 16:22:24,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 16:22:24,968 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-16 16:22:24,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2025-03-16 16:22:24,971 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2025-03-16 16:22:24,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2025-03-16 16:22:25,032 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-16 16:22:25,057 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-16 16:22:25,057 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 16:22:25,057 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 16:22:25,059 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-16 16:22:25,061 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 16:22:25,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-16 16:22:25,262 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 16:22:25,262 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-03-16 16:22:25,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [27642367] [2025-03-16 16:22:25,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [27642367] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 16:22:25,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 16:22:25,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-16 16:22:25,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784522442] [2025-03-16 16:22:25,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 16:22:25,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-16 16:22:25,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-03-16 16:22:25,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-16 16:22:25,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-16 16:22:25,263 INFO L87 Difference]: Start difference. First operand 35 states and 49 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 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) [2025-03-16 16:22:25,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 16:22:25,305 INFO L93 Difference]: Finished difference Result 35 states and 49 transitions. [2025-03-16 16:22:25,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 16:22:25,306 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 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 [2025-03-16 16:22:25,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 16:22:25,306 INFO L225 Difference]: With dead ends: 35 [2025-03-16 16:22:25,306 INFO L226 Difference]: Without dead ends: 0 [2025-03-16 16:22:25,306 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-16 16:22:25,306 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 3 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 16:22:25,307 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 6 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 16:22:25,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-03-16 16:22:25,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-03-16 16:22:25,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-16 16:22:25,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-03-16 16:22:25,307 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2025-03-16 16:22:25,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 16:22:25,307 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-03-16 16:22:25,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 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) [2025-03-16 16:22:25,307 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-03-16 16:22:25,307 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-03-16 16:22:25,309 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-03-16 16:22:25,313 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2025-03-16 16:22:25,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2025-03-16 16:22:25,515 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2025-03-16 16:22:25,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-03-16 16:22:25,602 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-16 16:22:25,610 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2025-03-16 16:22:25,611 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-16 16:22:25,611 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-03-16 16:22:25,611 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2025-03-16 16:22:25,611 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2025-03-16 16:22:25,611 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2025-03-16 16:22:25,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 04:22:25 BoogieIcfgContainer [2025-03-16 16:22:25,611 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-16 16:22:25,612 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-16 16:22:25,612 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-16 16:22:25,612 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-16 16:22:25,613 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 04:22:20" (3/4) ... [2025-03-16 16:22:25,614 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-16 16:22:25,618 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2025-03-16 16:22:25,619 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2025-03-16 16:22:25,619 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2025-03-16 16:22:25,619 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-03-16 16:22:25,679 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-16 16:22:25,679 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-16 16:22:25,679 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-16 16:22:25,680 INFO L158 Benchmark]: Toolchain (without parser) took 8973.44ms. Allocated memory is still 117.4MB. Free memory was 93.1MB in the beginning and 55.2MB in the end (delta: 37.8MB). Peak memory consumption was 39.1MB. Max. memory is 16.1GB. [2025-03-16 16:22:25,680 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory is still 47.1MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:22:25,680 INFO L158 Benchmark]: CACSL2BoogieTranslator took 223.85ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 79.6MB in the end (delta: 13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-16 16:22:25,680 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.71ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 77.9MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-16 16:22:25,680 INFO L158 Benchmark]: Boogie Preprocessor took 54.54ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 75.4MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:22:25,681 INFO L158 Benchmark]: IcfgBuilder took 3037.82ms. Allocated memory is still 117.4MB. Free memory was 75.4MB in the beginning and 55.6MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-03-16 16:22:25,681 INFO L158 Benchmark]: TraceAbstraction took 5553.79ms. Allocated memory is still 117.4MB. Free memory was 55.1MB in the beginning and 61.9MB in the end (delta: -6.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-16 16:22:25,681 INFO L158 Benchmark]: Witness Printer took 67.30ms. Allocated memory is still 117.4MB. Free memory was 61.9MB in the beginning and 55.2MB in the end (delta: 6.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-16 16:22:25,682 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory is still 47.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 223.85ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 79.6MB in the end (delta: 13.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.71ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 77.9MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.54ms. Allocated memory is still 117.4MB. Free memory was 77.9MB in the beginning and 75.4MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * IcfgBuilder took 3037.82ms. Allocated memory is still 117.4MB. Free memory was 75.4MB in the beginning and 55.6MB in the end (delta: 19.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 5553.79ms. Allocated memory is still 117.4MB. Free memory was 55.1MB in the beginning and 61.9MB in the end (delta: -6.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 67.30ms. Allocated memory is still 117.4MB. Free memory was 61.9MB in the beginning and 55.2MB in the end (delta: 6.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 125]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 63 edges, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 43 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 43 mSDsluCounter, 192 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 88 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 104 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 1 QuantifiedInterpolants, 106 SizeOfPredicates, 4 NumberOfNonLiveVariables, 168 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 84]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 67]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 49]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 43]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 90]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 99]: Location Invariant Derived location invariant: 0 RESULT: Ultimate proved your program to be correct! [2025-03-16 16:22:25,734 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE